Copyright: Ganymede Test & Measurement


What's New
What’s New

The following features are new in Version 1.2.

A new ‘Block’ menu has been added which provides the facility to re-process selected portions of a wave file at different sensitivity levels.

New  ‘Record’  and ‘Normalise’ functions have been added. This means you no longer need to use an external application to record your source audio files.

The main window now behaves more like a regular wave editor window. The zoom range has been extended to encompass the entire file and you can now centre the display on any arbitrary point in the file. Screen updates have also been speeded up.

The overview window now  includes a horizontal bar to indicate the extent of the wave file  visible in the main window.

The ‘Analysis’ menu has been modified to include new options to scan for ‘clicks only’ or ‘tracks only’.

Click and Track detection ranges have been extended in the ‘Options’ dialogue.

A bug which affected manual track boundary adjustments in ‘Disk-at-Once’ mode has been fixed.

See the Version History for earlier changes.


What Is Wave Corrector

Wave Corrector is a true WYSIWYG waveform corrector which automatically removes clicks, ticks and plops from recordings of vinyl records before transfer to CD.

Unlike conventional click eliminators, Wave Corrector presents the user with a graphical display of the corrected and uncorrected waveforms overlaid on each other to allow a visual comparison. In this way, the efficacy of each correction can be assessed and adjusted if necessary. Individual click corrections can be modified or deleted and new corrections can be cued or inserted. Thus, the user has complete control over the end result of the process.

Wave corrector also automatically finds track boundaries and assembles separate wave files representing  each of the tracks of a multi-track LP source.

Wave Corrector has been designed to achieve the following key objectives:

•	An intuitive user interface which allows easy before and after auditioning of individual corrections.

•	Artefacts produced by the correction process to be as small as possible.

•	Automatic Gain Control to enable tolerance of varying recording levels.

•	A minimal number of user settings.

•	The facility to adjust and optimise individual corrections.

•	The facility to automatically split a wave file into separate tracks.


User Interface
The User Interface

The user interface comprises the following main components:

The main window emulates an enhanced dual trace oscilloscope display and features green and red traces representing the left and right channels. Various other colour coded information is also present. This window is also used to display and adjust track boundaries ( the positions where one track ends and the next track begins).

To the left of the main window is a control bar for setting the ‘oscilloscope’ controls: vertical gain, horizontal gain, etc.

Below the main Window is an Overview  which displays a histogram of the current track or of the entire wave file, Below the histogram, markers represent each of the detected clicks.

To the right is the Correction List window which lists all the corrections performed by the program. These corrections are colour coded according to the estimated severity of the click.

A conventional windows toolbar and status barcomplete the Wave Corrector Interface.


Main Window
The Main Window

The main window is used to view both click corrections and track boundaries. During playback, a synchronised vertical cursor moves across the window.

As you move the mouse over this window, the rightmost pane of the status bar indicated the position of the mouse pointer in minutes and seconds.

Click Correction View

When a click correction is selected, the main window emulates the display of a dual beam oscilloscope enhanced with colour coded information to indicate various additional information. At high magnification, the display is scaled in multiples of samples per division; at low magnification, it is scaled in multiples of seconds or minutes per division.

The upper (green) trace represents the corrected left stereo channel and the lower (red) trace represents the corrected right stereo channel. Both traces are overlaid on top of the uncorrected wave which is displayed in blue. This enables corrections to be easily identified. The light yellow band at the centre indicates the width of the selected click as estimated by Wave Corrector.

Note that the blue (uncorrected) trace is only available at zoom ranges higher than 1 second per division. At lower zoom ranges, the waveform is dimmed to indicate that the overlay is not available.

Actions available from this window

You can immediately enter ‘correction adjust’ mode by holding down the left mouse button over the correction edge you want to alter and dragging to the required new width.

Double clicking over a point in the window, re-centres the display on that point. If you have double clicked in the vicinity of an existing correction, Wave Corrector will ‘lock on’ to that correction and it will become selected.

You can audition the current click by clicking the right mouse button and selecting the required command.

Track Boundary View

When a track boundary is selected, the view changes to a histogram of amplitude versus time in the vicinity of the boundary. The horizontal scale changes to seconds per division and multiples thereof. The gap between the end of one track and the beginning of the next is indicated by a black band.

To aid identification, the track colours correspond to the track colours in overview window at the bottom of the display.

Note: If Track Boundaries are synchronised (See Options Dialogue), there is no inter-track gap and the track boundary is indicated by a thick black vertical line.

Actions available from this window

You can immediately enter ‘track boundary adjust’ mode by holding down the left mouse button over the track edge at the centre of the screen and dragging to the required new position.


Control Bar

 The Control bar to the left of the main window provides the following controls for scaling and adjusting the image of the waveform:

Vertical Scale in mV per Division; ranges: 20 to 1000 in1-2-5 steps.

Horizontal Scale (Correction View) in Samples/Secs/Mins  per Division; ranges: 5 samples to 5 minutes in 1-2-5 steps.

Horizontal Scale (Track Boundary View) in Seconds per Division; ranges: 0.1 to 10 in 1-2-5 steps.

Trace Separation in Divisions; ranges: 0 to 8.

Left and Right Channel On/Off buttons labelled ‘L’ and ‘R’.

Shortcuts Keys:
Num. Keypad ‘2’ (Down Arrow):	Vertical Zoom In
Num. Keypad ‘8’ (Up Arrow):	Vertical Zoom Out
Num. Keypad ‘6’ (Right Arrow):	Horizontal Zoom In
Num. Keypad ‘4’ (Left Arrow):	Horizontal Zoom Out


Overview Window

The overview window at the bottom of the screen displays a time versus amplitude histogram of the currently selected track; or, if no track is selected, it displays a histogram of the entire wave file.

When the entire wave file is displayed (as above), alternate tracks shown in contrasting colours.

When the view in the main window is sufficiently wide, a horizontal white bar is displayed at the top of the overview window to indicate the width of the Main Window display.

Individual corrections are indicated by colour coded markers at the bottom of the window. The colours correspond to the colours in the correction list window.

Optionally (via the View menu), you can also display a correction signature in this window. The correction signature indicates how hard Wave Corrector is working at each point in time. A blip in the signature during a loud passage usually means that the click detector has mis-fired due to the music content.. Such areas of the file should be auditioned and unnecessary corrections deleted as required. Alternatively, the click threshold could be reduced to limit the incidence of false corrections..

Except during playback, a vertical cursor indicated the position of the currently selected item. During playback, the cursor is synchronised with the audio.

As you move the mouse over this window, the rightmost pane of the status bar indicated the position of the mouse pointer in minutes and seconds.

Shortcuts from this window

You can re-centre the main window display by single clicking over the required new centre position.  If there is a correction in the vicinity of where you clicked, that correction will be selected.

When all tracks are being displayed, you can select a particular track by double clicking over it.

When a single track is being displayed, you can select ‘all tracks’ by double clicking anywhere in the window.

You can play the track(s) shown in the window by clicking the right mouse button and selecting the required command.

During Track playback, you can move immediately to a new position by single clicking over the new position.


Correction List Window

 The window to the right or the main window lists the corrections as determined by the scan operation together with any user selected corrections inserted into the list.

The list shows the timestamp of the correction together with the magnitude of the underlying click as determined by Wave Corrector. If a track has been selected, the timestamp shows the time measured from the start of the track; otherwise it shows the time from the start of the wave file..

User entered corrections and track boundary points are also shown in this window.

The currently selected correction is indicated by the blue arrow.

The corrections are colour coded according to the expected click magnitude. The colour code is as follows:

High Magnitude	Red
Medium Magnitude	Yellow
Low Magnitude	Green
User Entered	Blue
New Correction	White (when a correction has been inserted but not confirmed)
Track Boundary	Grey

Shortcuts from this window

You can select a correction or track boundary for viewing or auditioning by clicking over it with the left mouse button.

You can step between corrections using the Up/Down cursor keys.


Toolbar

The toolbar is displayed across the top of the application window, below the menu bar.  The toolbar provides quick mouse access to many tools used in Wave Corrector,

Click	To

Open a new wave file for processing and scan for clicks and track boundaries. Wave Corrector displays the Open dialog box, in which you can locate and open the desired file

Re-Scan the currently loaded wave file and generate corrections for all detected clicks.

Calls the Scan Options dialog .box. Options such as click detection threshold can be set by the user.

Auditions a click before correction has been applied.

Auditions a click after correction has been applied.

Removes a correction from the correction list. The original waveform is restored. A confirmation dialog appears before the correction is permanently removed.

Starts the correction adjustment process whereby the placement and width of a correction can be altered.

Insert a new correction. Clicking this button puts Wave Corrector into insert mode. In this mode, you can add a correction to the correction list by clicking over the required insertion point in the main window.

Note: During track playback, you can also cue a new correction ‘on the fly’ by pressing the Space Bar at the instant you want the correction to be applied.

Play track(s) original. Plays the uncorrected current track; or if no track is selected, plays the entire file.

Play track(s) corrected. Plays the corrected current track; or if no track is selected, plays the entire file.

 Cancel playback.

Audition the placement of a track boundary. This button is used interactively when you are fine tuning the position of a track boundary.

Jumps to the previous track boundary position.

Jumps to the next track boundary position.

Calls this help file.

Enables context sensitive help. After selecting this button, click over a region of the Wave Corrector window to obtain help.

Jumps to the previous critical correction

Jumps to the next critical correction.


Status Bar

The status bar is displayed at the bottom of the Wave Corrector window.  To display or hide the status bar, use the Status Bar command in the View menu.

The left area of the status bar describes actions of menu items as they are selected. This area similarly shows messages that describe the actions of toolbar buttons when the mouse pointer moves over them.

The right hand areas of the status bar indicate in turn:

1.	the current Wave Corrector status.

1.	the total number of clicks detected.

1.	the current track or the position of the mouse in the main or overview window.


Operations
Wave Corrector Operations

This section provides an overview of the operation of Wave Corrector.

When you load a new wave file into Wave Corrector it is automatically scanned for clicks and track boundaries and a corrected waveform is generated for each of the detected clicks. All such corrections are displayed in the Correction List at the right hand side of the main window.

As you step through the correction list, each correction is displayed in the main window overlaid on the uncorrected wave. By selecting the ‘Audition’ command, you can immediately hear the before and after effect of the individual correction. If a click is still audible after correction it is possible to manually adjust the interpolation parameters for the individual click to better match the underlying waveform. During adjustment, you can audition you modifications to assess their effectiveness.

Track boundaries are detected by searching for periods of inter-track silence. Tracks thus detected are listed under the ‘Tracks’ menu. Track boundaries can easily be moved and tracks can be customised by splitting or merging.


Tips & Techniques
Tips and Techniques

Wave Corrector’s automatic mode of click correction is more than adequate for general use. Except for the possible need to adjust track timings, a vinyl recording can be corrected and transferred to CD without user intervention. Wave corrector has been designed to match or exceed the performance of  competitor products in respect of accuracy of click detection as well as for low audibility of correction artefacts.

Audiophile users archiving treasured record collections may however wish to achieve even cleaner results by utilising Wave Corrector’s waveform comparison and editing functions.

These notes are provided to enable you to use these features to the full.

The Limitations of Click Eliminators

All click eliminators must balance the conflicting requirements of detecting as many clicks as possible whilst at the same time not being triggered by musical forms resembling a click. When this balance is incorrect, the result will be:

•	false negatives - the failure to detect a click even though it is audible to the human ear.

•	false positives  - detecting and modifying parts of the music which the ear does not perceive as a click.

•	a combination of both the above.

 Wave Corrector’s advanced features serve to overcome these limitations.

False Negatives

False negatives are relatively rare with Wave Corrector. However, if a click has slow rising and falling edges, then Wave Corrector may fail to identify it, particularly if the click detection threshold is set at a relatively insensitive value.

These missed clicks can usually be tracked down by using Wave Corrector’s ‘Block Re-scan’ Mode. Simply mark a short portion of the waveform surrounding the click and select Re-Scan or Super-Scan using a higher sensitivity than was set for the original scan. In the majority of cases, this will be sufficient to locate and correct the rogue click(s).

However, if this does not work, it is possible to manually insert an individual correction. This is quite difficult because you need to learn how to visually identify a click from the shape of its waveform. Having identified it, you then insert a correction precisely over the centre of the click and adjust the width to obtain the optimum audio quality.

The following step by step procedure explains how this is done.

1.	Centre the main window display as nearly as possible over the click you want to correct. (Note that you re-centre the display by double clicking  over the new centre position you require.)

1.	Expand the horizontal scale, re-centring if necessary until  the rogue click is identified by its waveform shape. Use the ‘Audition’ command and its synchronised moving cursor to help you locate the click precisely.

1.	When you think you have identified it, select the ‘Insert New Correction’ command and click over the waveform at the centre of the click. A user correction will be inserted in the list and the selection will switch to the new correction.

1.	Now fine tune the width of the correction to match characteristics of the click. If necessary, you can also nudge the position of the correction to the left or right  with the cursor left/right keys. Use the ‘Audition’ command to evaluate the efficacy of your adjustments.

1.	If your identification of the click was mistaken, you can continue you search by moving the correction to the left or right until you track it down. See ‘ Adjust Command’ for help on adjusting a correction.

 NOTE: It is also possible to ‘cue’ a new correction during track playback by pressing the Space Bar when you hear the click which needs correction. A user correction will be inserted at the specified position and you can precisely position it using the above procedure.

False Positives

False positives are rather more numerous than false negatives, but they are much easier to deal with. The vast majority can in fact be ignored since they impart only minor changes to the waveform which are usually inaudible.

However, if you wish to obtain maximum fidelity to the original recording. any corrections which do not appear to serve a purpose can be easily deleted using either the ‘Block – Remove Corrections’ command or else the ‘Delete Correction’ command if you just want to remove a single correction.

To help you identify the location of false positives, Wave Corrector provides the option of displaying a ‘correction signature’ in the Overview window. The signature indicates the rate at which Wave Corrector is  making corrections during the course of the wave file. A high correction rate during medium to high amplitude music is probably indicative of the false operation of the click detector. Such areas should be auditioned and false corrections removed if necessary.

Adjusting Corrections

Although the majority of Wave Corrector’s auto-corrections are inaudible at normal listening levels, there are occasions when a click is not completely removed. To minimise correction artefacts, Wave Corrector retains as much of the original waveform as possible and this can sometimes allow small portions of a click to slip past the corrector. Generally speaking, this will only affect the highest magnitude clicks highlighted in red in the correction list. (These can be selected with the ‘Next/Previous Critical Correction’ commands.)

For such situations, Wave Corrector provides the ‘Adjust Correction’ command.

Using ‘Adjust Correction’ you can fine tune the width of a correction and also nudge its position relative to the click it is correcting. By means of these fine adjustments, even the most intrusive clicks can be rendered practically inaudible.

. See ‘Adjust Command’ for more help on adjusting a correction

Recording Levels

To obtain the maximum benefit from Wave Corrector, recording levels should be as high as possible whilst ensuring that the signal does not distort. Some sound cards are unable to utilise the full 16-bit dynamic range of the system and start to clip before the maximum signal level is reached. For this reason it is sensible to make some test recordings before committing to CD.

If you find there is audible distortion form your sound card when recording at maximum level, you should back off the recording level until the distortion reduces to an acceptable level. If the overall amplitude is now too low, you can increase it using a standard wave editing program (eg Wave Studio or Goldwave).

Although you can use the click detection threshold level control of Wave Corrector to compensate for an incorrect recording level, this as not as effective as getting the level right at the recording stage

Left-Right Channel Reversal Problems

You should be aware that some CD recording software does not correctly allocate  the left and right channels to the CD. This seems to be because the wave file format allows different size header blocks but that the CD recording software does not take this into account when identifying the first sample to record. Therefore, depending upon which wave recording program you use, the resulting CD may or may not have the channels reversed. For example, using Adaptec Easy CD Creator 3.5b, the channels are reversed if you use Goldwave to make your original recording; but are correct if you use Wave Studio.

For the above reason, carry out some tests before committing your record collection to CD! If you find that the CD channels are reversed, then the simplest way overcome the problem is to simply reverse the left/right leads between your record player and your sound card. This will, in effect, give you a double reversal which will solve the problem. Remember however to re-perform the check whenever you change either your CD recording software or your wave file recording software.

To ensure that it does not compound this problem, Wave Corrector strictly maintains the header block size of all its output files to be the same as the header block size of the corresponding input file. This means that once you have performed the above check, you can use Wave Corrector without worrying about its effect on channel reversal.


Loading and Saving
Loading and Saving Files

Wave Corrector will only processes  wave file which have been recorded to the audio CD standard; ie 16bit stereo, 44.1 kHz sampling rate. You will not be able to open wave files in any other format.

To open a wave file for processing, select the File – Load Wave File command. If a wave file is already being processed, you will be prompted whether to save or discard any outstanding corrections.

When you are satisfied  with wave Corrector’s corrections and track boundary identification you can save your results using the File – Save and Close command. You will be prompted whether you want to save to a single wave file or to create separate wave files for each track detected.

Wave Corrector automatically assigns names to the corrected files. It adds the suffix ‘cor’ to the original wave file name and also adds a number equal to the track number. You can alter the name if required. If any of the corrected file names already exist on your computer, you will be prompted whether to overwrite them.

If you want to save your work before you have completed auditioning the results, you can choose the File – Save Session command. This saves the list of corrections and track boundaries.

Use the File – Restore Session command to restore a list of corrections and track boundaries and to regenerate the corrected waveform.


Choosing the Save Format
Choosing the Appropriate Save Format

You can either save your work to wave files; or alternatively, you can save the list of corrections and track boundaries to a session file. Which you do, depends on whether you have completed editing the corrected waveform.

If you intend to make further user adjustments to the corrected wave then choose ‘Save Session’. This saves the list of corrections and track boundaries and enables Wave Corrector to restore the corrected waveform when required.

If you have finished making adjustments, then choose ‘Save Wave Files’. You will be prompted with a track selector box and a request for a file name.

See also Loading and Saving Files.


Recording Function
Recording Wave Files

Wave Corrector provides the  facility to record your own wave files direct from the Line-In port of your soundcard.

Wave files are recorded to the audio CD standard; ie 16bit stereo, 44.1 kHz sampling rate.

To start recording, select the File – Record New Wave File command. If a wave file is already being processed, you will be prompted whether to save or discard any outstanding corrections. You will be prompted to supply a file name for your new recording and then the Record New File Dialogue will appear.

The ‘Record New File’ dialogue provides level monitoring and recorder controls as well as a post-recording normalise function to adjust the volume of the recording if required.

When setting the recording level you should take account of the performance of your sound card. Some sound cards overload before the maximum theoretical level (clipping level) has been attained. You should therefore carry out some listening tests to determine the optimum recording level for your particular set-up. Wave Corrector assists you in this by colour coding the volume meter indicator bars.

If you find you need to record at a level below maximum, you can utilise Wave Corrector’s ‘Normalise’ function to adjust the level of the recorded wave prior to click and track processing.

Once your file has been recorded (and normalised if necessary) you can immediately scan for clicks and tracks using the ‘Scan Now’ button in the Record Dialogue.


Scanning for Clicks and Tracks
Scanning for Clicks and Track Boundaries

The source file is automatically scanned by Wave Corrector when it is first loaded or after it is recorded.

If you find the results are not satisfactory, you can re-scan for clicks, tracks or both using the appropriate function on the analysis menu. When you select one of these re-scan functions, you will be prompted to supply new values for the detection parameters to be used for the scan.

Use one the following three commands as required:

Analysis – Re-Scan Clicks command

Analysis – ReScan Tracks command

Analysis – ReScan All command

The following scan detection parameters can be set:

Click Threshold

The click threshold can be set between 0 and 5 where ‘0’ is ‘Off’ ie no clicks will be detected. This alters the sensitivity of the click detection algorithm. The default value is 3.

Click Detect Mode

The click detect mode can be set to mono or stereo and should be set according to the characteristics of the source recording. If the original source is of a mono disc recorded with a stereo cartridge then there can be an advantage to be gained by detecting on the stereo difference channel. This is because there is no legitimate difference signal and therefore all the difference channel signal represents unwanted noise. Somewhat confusingly, this mode is called MONO Mode.

On the other hand, if the original source is a stereo record, then it is better to detect on each channel separately (STEREO Mode)

To summarise:

Mono Record + Stereo Cartridge	Use Mono Mode
At all other times	Use Stereo Mode

Inter-track Silence Threshold

This setting determines the level at which the detector decides that a track has finished. It has a range of 0 to 9 where ‘0’ id ‘Off’ ie no tracks will be detected. The default level is 3.

 Synchronise Track Boundaries

This setting is provided to enable the production of ‘Disc-At-Once’ recordings on your CD.

In synchronous mode, the end of a track is always made exactly adjacent to the start of the next track. It is also positioned on a 588 sample boundary. This enables the CD recorder to produce a seamless track change with no gap between tracks. You can only do this if your recording software supports Disc-At-Once’.

In non-synchronous mode, you can cut out unwanted gaps between tracks. Remember that the CD recorder will normally insert its own 2 second silence  between tracks.


Selecting a Correction

In order to audition or adjust a correction, it must first be selected. The correction can be selected in one of the following three ways:

1. Click over the required correction in the Correction List.

2. Click over the required correction in the Overview Window.

3. If a non-selected correction is visible in the main window, double clicking over it will cause it to be selected.

You an also step through the correction list with the Cursor Up/Down arrow keys.


Viewing a Correction

Once a correction has been selected, it appears at the centre of the main window.

Depending on the width of the correction and the amplitude of the waveform, you may need to alter the horizontal or vertical scale using the Control Bar controls to optimise your view. You can also use the cursor keys on the numeric keypad to set the horizontal and vertical scale.

As well as zooming in to reveal the detail of a particular correction, you can also zoom out up to maximum of 50000 samples per division. This enables you to view several seconds worth of waveform and shows clicks in the vicinity of the selected correction. This can be useful for tracking down an errant click which Wave Corrector has failed to eliminate,


Adjusting a Correction

If required, the placement and width of the currently selected correction can be adjusted in order to optimise the audio quality of the corrected wave.

 During adjustment, you can audition the changes you make. You are given the choice of saving the changes or of reverting to the original correction.

See the Adjust Command on the Corrections menu for a description of this process.


Inserting and Removing Corrections

Although Wave Corrector will automatically generate a list of corrections, it will occasionally be necessary to add or remove corrections because of imperfections in the click detect algorithms.

Corrections can be added or removed using the Insert New and Remove Current commands on the Corrections menu. For description of these processes, click on the above links.

Cueing New Corrections

You can only add corrections using the above method if there is an existing correction in the vicinity of the point where you want the correction added. If this is not the case, you can add the corrections ‘on the fly’ during playback. This is known as the cueing a correction.

To cue a new correction, Wave Corrector must be in track playback mode. During playback, press the Space Bar at the instant you want the new correction to be applied. The newly cued correction will appear in the correction list highlighted in white.

You can continue cueing corrections in this way until you cancel playback. Note that during playback, you can jump back or forward (for example to repeat a section) by clicking over the point you want to jump to in the overview window.

Corrections added by this method are highlighted in white in the Correction List and labelled ‘Set Correction’. They are pre-set to minimum width and will only be in approximately the correct location. You will need to manually position them to their precise final location and also to manually adjust the width to an appropriate value. Once adjusted, they are colour coded blue in the correction list.


Auditioning Corrections
Auditioning a Correction

You can audition the current correction at any time by selecting the ‘Audition Click’ command on the Corrections menu and selecting either the ‘Play Original’ or the ‘Play Corrected’ option. There are also toolbar buttons for these functions, or the numeric keypad keys ‘1’ and ‘3’ can be used as shortcuts.

See Audition Correction for a description of this process.


Block Operations

Block operations are available from the Block menu on the main menu bar.

Block operations enable you to perform corrections and other tasks on a portion of the wave file  rather than on the entire file.

To create a block, drag with the mouse in the main window over the area you want to re-process. The block will be highlighted in blue, and any corrections in the block will be indicated by blue selection arrows in the corrections list. Once a block is selected, the block menu options will be available:

The following options are provided by the menu:

•	'Remove Corrections' removes all corrections from the block.

•	'Re-Scan' removes all the existing corrections from the block and re-scans it using the parameters you supply when you select the option.

•	'Super-Scan' is the same as re-scan except that it superimposes the new corrections on top of the existing corrections rather than removing them first.

Shortcuts

Whenever a block is selected you can right click the mouse to activate a menu of block options.


Selecting  Tracks and Track Boundaries
Selecting a Track or a Track Boundary

Selecting a Track

Once the source file has been scanned, a list of the detected tracks is appended to the bottom of the Tracks Menu.

To select a track, click on it in the Tracks menu.

The currently selected track is indicted by a check mark next to it in the menu and it is displayed in the Overview window.

You can also select a track by double clicking it in the overview menu. Double clicking a second time, deselects the track and reverts to the ‘All Tracks’ view.

If a track is selected, and the user selects a correction from a different track, the current track is automatically updated to reflect the change.

Selecting a Track Boundary

Track boundaries are identified by track-start and track-end markers. A marker can be selected by using the ‘Next Marker’ or ‘Previous Marker’ commands on the track menu..


Merging and Splitting Tracks

You can use the Merge Tracks and Split Track commands on the Tracks Menu to add or remove track boundaries;

‘Merge tracks enables you to merge the tracks on either side of a track boundary marker. You will normally use this command when Wave Corrector has incorrectly identified a track boundary, say during a pause in the recorded music.

Split Track Command   (Tracks Menu)

‘Split Track’ enables you to split the current track. This will usually be used to place a track boundary in the middle of a piece of music in order to force a track change at that point on the resulting CD. In this case you must use Synchronise Tracks mode in order to ensure a seamless track transition.

For more information, see the Merge Tracks or Split Track


Adjusting and Auditioning Tracks
Adjusting and Auditioning Track Boundaries

A track boundary must be selected before it can be adjusted or auditioned. To immediately select a track boundary belonging to the current track, use the ‘Next Marker’ or ‘Previous Marker’ command.

Once a track boundary is selected, you can easily re-position it by dragging it with the mouse while holding down the left mouse button. You can audition the change by selecting the ‘Audition Track Boundary’ command.

See the Audition Track Boundary command for a description of this process.


Playing a Track

You can play  the current  track at any time by selecting the ‘Play Track’ command on the tracks menu and selecting either the ‘Play Original’ or the ‘Play Corrected’ option. There are also toolbar buttons for these functions.

If no track is currently selected, then the entire wave file will be played.

When Wave Corrector gets to the end a the track/file, it loops back the beginning and continues playing.

During playback, you can move immediately to  a particular point by clicking over it in the overview window. Playback then continues from that point.

See Play Track for a description of this process.


File menu commands

The File menu offers the following commands:

Load New Wave File	Open a new wave file for processing.
Save & Close	Saves the corrected waveform either to a single file or to a separate file per track.
Restore Session	Restores a previously saved correction session.
Save Session	Saves the current correction session allowing it to be re-opened at a later time.
Record New Wave File	Record a new wave file for processing.
Exit	Exits Wave Corrector.


File Load new wave file command
Load New Wave File command   (File menu)

Use this command to open a new Wave File for processing in Wave Corrector. Wave Corrector displays the Open File dialog box so you can select the wave file you want to open.

Once loaded, Wave Corrector will automatically scan the file for clicks and track boundaries and will then generate waveform corrections for all the clicks it has detected.

If you have previously saved a Wave Correction session, you can continue working on the file with the  Restore Session Command.

Shortcuts

Toolbar:

Keys:	CTRL+N


Save and Close command
Save and Close command   (File Menu)

Use this command when you have finished making corrections to the wave file. You will presented with the following dialog box.

You can choose whether to save all tracks to a single file, or whether to create separate wave files for each track.

A selection box allows you to select the Tracks you wish to save.

The output file(s) are given default names made up of the source file name appended with the suffix ‘cor’ and a numeric value representing the track number.

You can change the names by clicking the ‘Change’ button. However, the numeric suffix will always equal the track number.

Shortcuts

Keys:	CTRL+S


File Restore Session command
Restore Session command   (File menu)

Use this command to restore a session you have previously saved. The command restores a correction list and track list that you have saved and regenerates the corrected waveform.

Wave Corrector displays the Open File dialog box so you can select the session file you want to open.

Session files are identified by a .ses extension.


File Save As command
Save Session command   (File menu)

Use this command to save and name the current session. Do this if you will want to return to it at a later time to modify the corrections or track boundaries.

The command saves the correction list and track list so that they can be restored when you want them.

Wave Corrector displays the Save As dialog box so you can name the session. Its default name will be the name of the source file but with the .ses extension.

Note: Do not delete the  source wave file from your hard disc. ‘Save Session’ only saves the correction list and track list; it does not save a copy of the source wave file. If you delete the source wave file, Wave Corrector will not be able to restore the session.


File Record New command
Record New Wave File command   (File menu)

Use this command to make a new recording of a vinyl source via the Line-In port of your soundcard.

Wave Corrector displays a ‘Save As…’ dialogue to enable you to provide a name for the file you intend to record.

You are then presented with the Record Dialogue shown below. This dialogue enables you to:

•	monitor the level of the audio being recorded.

•	start, stop and pause the recording

•	normalise the level to a user selectable value.

For additional information, click over the relevant section of the image.


File 1, 2, 3, 4 command
1, 2, 3, 4 command   (File menu)

Use the numbers and filenames listed at the bottom of the File menu to open the last four sessions you closed.  Choose the number that corresponds with the session you want to open.


File Exit command
Exit command   (File menu)

Use this command to end your Wave Corrector session.  You can also use the Close command on the application Control menu.  Wave Corrector prompts you to save any unsaved corrections.

Shortcuts

Mouse:	Double-click the application's Control menu button.

Keys:	ALT+F4


View menu commands

The View menu offers the following commands:

Grid	Shows or hides the grid in the main window.
Scale	Shows or hides the scale in the main window.
Signature	Shows or hides the Correction signature in the overview window.
Toolbar	Shows or hides the toolbar.
Status Bar	Shows or hides the status bar.


View Toolbar command
Toolbar command   (View menu)

Use this command to display and hide the Toolbar, which includes buttons for some of the most common commands in Wave Corrector, such as File Open.  A check mark appears next to the menu item when the Toolbar is displayed.

See Toolbar for help on using the toolbar.


View Status Bar Command
Status Bar command   (View menu)

Use this command to display and hide the Status Bar, which describes the action to be executed by the selected menu item or depressed toolbar button, and includes panes to indicate the statistics of the current operation. A check mark appears next to the menu item when the Status Bar is displayed.

See Status Bar for help on using the status bar.


Showing/Hiding the Grid
View Grid   (View Menu)

Use this command to turn on or off the Grid in the main window.


Showing/Hiding the Scale
View Scale   (View Menu)

Use this command to turn on or off the Scale in the main window.


Showing/Hiding the Correction Signature
View Signature   (View Menu)

Use this command to display or hide the correction signature in the overview window.

The correction signature is useful for identifying sections of a wave file which have been affected by mis-firing of the click detector. See under ‘False Negatives’ in Tips & Techniques for advice on using the correction signature.


Analysis menu commands

The Analysis menu includes commands that let you re-scan the loaded file for clicks, track boundaries or both

You can also select the click and track silence detection thresholds via this menu.

For more information, select the Analysis menu command name:

Re-Scan Clicks	Re-scans the source wave file for clicks and generates new corrections. Track markers are left unchanged.
Re-Scan Tracks	Re-scans the source wave file for track boundaries. Click corrections are left unchanged.
Re-Scan All	Re-scans for both clicks and tracks.
Options	Sets the detection thresholds for clicks and inter-track gaps.


Re-Scan Clicks Command
Re-Scan Clicks Command  (Analysis Menu)

The source file is automatically scanned by Wave Corrector when it is first loaded. This command enables you to re-scan for clicks  if the results of the original scan are unsatisfactory.

All the existing corrections are removed before re-scanning begins.

Track markers are unaffected when you use this command.

Selecting the command activates a dialogue box for entering new scanning parameters. See the Options Dialogue for descriptions of the detection parameters available


Re-Scan Tracks Command
Re-Scan Tracks Command   (Analysis Menu)

The source file is automatically scanned by Wave Corrector when it is first loaded. This command enables you to re-scan for track boundaries if the results of the original scan are unsatisfactory.

All the existing track boundaries are removed before re-scanning begins.

Click corrections are unaffected when you use this command.

Selecting the command activates a dialogue box for entering new scanning parameters. See the Options Dialogue for descriptions of the detection parameters available


Re-Scan All Command
Re-Scan All Command   (Analysis Menu)

This command re-scans the entire file for clicks and track boundaries All existing corrections and track boundaries are removed before re-scanning begins.

Selecting the command activates a dialogue box for entering new scanning parameters. See the Options Dialogue for descriptions of the detection parameters available

Toolbar Button


Options Dialogue
Options Command   (Analysis Menu)

Use this command to select the Options Dialogue Box.

The Options Dialogue allows you to:

•	set the detection thresholds for the click and inter-track gap detectors.

•	set the click detection mode.

•	specify whether to synchronise the track boundaries.

Note that you must select re-scan to apply revised options to a wave file which is already loaded. The exception to this is the ‘synchronise track boundaries’ option which is applied immediately.

For additional information, click over the relevant section of the image below.


Corrections menu commands

Once a set of corrections have been scanned into the computer, the Corrections Menu allows you to manipulate them in a variety or ways. For example, you can manually add new corrections, and remove existing ones. You can also audition the effect of a correction on the audio quality of the waveform.

.For more information, select the Corrections menu command name:

Insert New	Inserts a new correction into the correction list..
Remove Current	Removes a correction from the correction list..
Adjust	Adjust the placement and extent (width) of a correction to optimise the sound of the corrected wave.
Audition Commands Original and Corrected	Plays the click waveform before and after correction has been applied.
Cancel Playback	Cancels playback of the click.


Corrections Insert New Command
Insert New Command   (Corrections Menu)

This command toggles between insert mode and normal mode. During insert mode, you can manually insert a new correction into the correction list.

To insert the new correction, select the command and then click over the required insertion point in the main window. During insert mode, the cursor changes to a crosshair and the toolbar button is highlighted. The main window background colour changes to mid-blue.

The newly inserted correction appears in the correction list highlighted in white and annotated ‘Set Correction’. Wave Corrector then immediately enters ‘adjust mode’ to enable you to fine tune the placement and width of the correction. Once these adjustments have been made, confirm or abort the insertion via the ‘User Adjust’ dialogue.

To cancel insert mode without inserting a correction, select the command a second time.

Note: As well as inserting a correction using the above method, you can also cue a new correction ‘on the fly’ during track playback. To do this, press the Space Bar at the instant you want the correction to be applied.

Shortcuts

Toolbar:

Keys:	Insert


Corrections Remove Command
Remove Correction Command   (Corrections Menu)

Use this command to remove a correction from the correction list and to restore the original waveform. A confirmation dialogue prevents you from accidentally removing a correction.

Shortcuts

Toolbar:

Keys:	Delete


Corrections Adjust Command
Adjust Command   (Corrections Menu)

Use this command to adjust the placement and width of a correction. The command is also used to adjust the placement of a track boundary.

To use the command, select the correction you wish to adjust (See Selecting a Correction), and select the command. The ‘Adjust Mode’ dialogue appears and the main window background colour changes to mid-blue.

 To adjust the placement and/or width of the correction you can use the cursor keys or the mouse.

You can pick up and drag the edge of the correction with the mouse. This widens or narrows it and affects the sound quality of the correction. The cursor Up/Down keys can be used as an alternative to the mouse.

The placement of the correction can be moved with the cursor Left/Right keys.

The cursor keys on their own move the correction 1 sample at a time.

In conjunction with the Shift Key, they move it one division at a time.

In conjunction with the Ctrl Key, they move it half a screen at a time.

Alternatively, you can hold down the shift key and click with the left mouse button over the required new position.

During adjust mode, you can audition your changes in order to hear their effect by using the auditioning commands.

When you are satisfied with the changes, click ‘Apply’ in the confirmation dialogue box to make them permanent..

To cancel your changes, click ‘Abort’.

Toolbar Button


Corrections Audition Command
Audition Commands   (Corrections Menu)

Use the Audition Correction commands to hear a click before and after correction has been applied. Use the ‘Play Original’ or ‘Play Corrected’ option as required.

The duration of the played back correction is dependent on the selected horizontal scale of the main window. If the window is displaying more than 2 seconds of waveform, then the playback will start and end at the window boundaries. If, on the other hand, the window is displaying less than 2 seconds the playback if forced to a 2 second period centred on the correction event.

Shortcuts

Toolbar:	:	Play original

Toolbar:	:	Play Corrected

Key:	Numeric Keypad ‘1’:	Play original

Key:	Numeriic Keypad ‘3’	Play Corrected

or: click the right mouse button in the main window and select the required option.


Cancel Command
Cancel Command   (Corrections Menu and Tracks Menu)

Select Cancel to stop playback immediately.

Shortcuts

Toolbar:

Key:	Esc


Tracks menu commands

The Tracks menu includes commands that let you select a track, reposition a track boundary, and step between tracks. A list of the tracks detected is appended to this menu.

For more information, select the Tracks menu command name:

Next Marker	Jumps forward to the next track boundary marker.
Previous Marker	Jumps back to the previous track boundary marker.
Merge with Previous	Merges the tracks on either side of a track boundary.
Split Track	Splits the current track at a user selectable split point.
Play Commands Original and Corrected	Plays the current track(s) before and after correction has been applied.
Audition Track Boundary	Auditions a track start or end boundary position.
Cancel Playback	Cancels playback of a track.
Track mm:ss	The tracks of the current wave file are listed at the bottom of the Tracks menu. A check mark indicates the currently selected track..


Boundary Marker Next/Previous Commands
Next Marker and Previous Marker Commands   (Tracks Menu)

These commands enable you to jump forward to the next track boundary marker, or back to the previous one.

When auditioning the placement of track boundaries, you can use these commands to quickly step through the tracks adjusting them as required.

Shortcuts

Toolbar:	Next Marker

Toolbar:	Previous Marker


Corrections Next/Previous Critical Commands
Next Critical and Previous Critical Correction Commands   (Corrections Menu)

These commands enable you to jump forward to the next critical correction, or back to the previous one.

Critical corrections are highlighted in red in the correction list.. They are the corrections which Wave Corrector determines are most likely to require user intervention.

Shortcuts

Toolbar:	Next Critical Correction

Toolbar:	Previous Critical Correction


Tracks Merge Command
Merge Tracks Command   (Tracks Menu)

This command enables you to merge two tracks into one.

To use this command, you must select a track boundary marker which lies between the tracks you want to merge and then select the command. (Note: you can immediately move to the track end or track beginning marker associated with the current track by using the ‘Next Marker’ or ‘Previous Marker’ command.)

You will normally use this command when Wave Corrector incorrectly identifies a track boundary, say during a pause in the recorded music.

A confirmation dialogue prevents you from accidentally  removing a track boundary.


Tracks Split Command
Split Track Command   (Tracks Menu)

This command enables you to split the current track. This will normally be because Wave Corrector has failed to correctly identify a track boundary.

A Track must be selected for this command to be available. See Selecting a Track or a Track Boundary.

You may also wish to place a track boundary in the middle of a piece of music in order to force a track change at that point on the resulting CD. Remember to use Synchronise Tracks mode if this is the case in order to get a seamless track transition.

To select the split point, click with the left mouse button over the required location in the overview window. Once inserted, the boundary can accurately adjusted to its final position using the Track Adjust command.


Tracks Play Commands
Play Track(s) Commands   (Tracks Menu)

These commands enable you to play back a track or the entire wave file both before and after corrections have been applied. Use the ‘Play Original’ or ‘Play Corrected’ option as required.

If a track is currently selected (see selecting a track) these command play that track. If no track is selected, then the entire wave file is played.

When Wave Corrector gets to the end of the track, it loops back to the beginning and continues playing. To cancel playback, select the Cancel Command either via the tracks menu; or by selecting the toolbar button; or by pressing the Escape key.

During playback, you can jump immediately to any point in the track by left-clicking the mouse in the overview window. Playback continues from that point.

Shortcuts

Toolbar:	Play original

Toolbar:	Play Corrected


Tracks Audition Boundary Command
Audition Track Boundary Command   (Tracks Menu)

Use this command to audition the placement of a track boundary.

For an end of track marker, playback starts at the left hand side of the main window, and stops at the marker.

For an start of track marker, playback starts at the marker and ends at the right hand side of the main window.

You can alter the placement of a marker by dragging it with the mouse while holding down the left mouse button. Confirm the new position by selecting ‘Apply’ in the Confirmation dialogue.

Shortcuts

Toolbar:	Audition Track Boundary


Track List
Track List   (Tracks Menu)

Once the source file has been scanned, a list of the detected tracks is appended to the bottom of the Tracks Menu. The list shows the track number and the track duration in minutes and seconds.

To select a track, click on it in the Tracks menu.

The currently selected track is indicted by a check mark next to it in the menu.

Shortcuts

You can also select a track by double clicking it in the overview menu. Double clicking a second time, deselects the track.

If a track is selected, and the user selects a correction from a different track, the current track is automatically updated to reflect the change.


Block menu commands

The Block Menu provides commands for operating on a portion of the wave file instread of on the entire file

Block operations are only available when a block is selected. See Block Operationsfor more information on selecting and using blocks.

Remove Corrections	Removes all corrections in a block
Re-Scan	Re-scans a block using new analysis parameters
Super-Scan	Re-scans a block using new analysis parameters and superimposes new corrections on top of existing corrections .


Block Remove Corrections  Command
Remove Corrections Command   (Block Menu)

This command enables you to remove all corrections from a block and to restore the original waveform. A confirmation dialogue prevents you from accidentally removing a block of corrections.

This command is only available when a block is selected. See Block Operationsfor more information on selecting and using blocks.


Block Re-Scan Command
Re-Scan  (Block Menu)

This command enables you to re-scan a portion of the file, leaving the rest of the file unchanged. All the original corrections in the block are removed before re-scanning begins.

Selecting the command activates a dialogue box for entering new scanning parameters.

This command is only available when a block is selected. See Block Operationsfor more information on selecting and using blocks.


Block Super-Scan Command
Super-Scan Command   (Block Menu)

This command enables you to re-scan a portion of the file, leaving the rest of the file unchanged. The command is similar to ‘Re-Scan Block’ except that the original corrections are not removed before re-scanning, the new corrections being superimposed upon the existing corrections.

Selecting the command activates a dialogue box for entering new scanning parameters.

This command is only available when a block is selected. See Block Operationsfor more information on selecting and using blocks.


Help menu commands

The Help menu offers the following commands, which provide you assistance with this application:

Tip of the Day	Provides hints and tips at start-up.
Help Topics	Offers you an index to topics on which you can get help.
Register Wave Corrector	Enables the user to enter their registration key.
About	Displays the version number of this application.


Tip of the Day

A useful tip is displayed at start-up.


About command (Help menu)

Use this command to display the copyright notice and version number of your copy of Wave Corrector.


Help Topics
Help Topics Command (Help Menu)

Use this command to display a list of help topics. From the opening screen, you can jump to step-by-step instructions for using Wave Corrector and various types of reference information.

Once you open Help, you can click the Contents button whenever you want to return to the contents list.


Registering Wave Corrector

Use the Register command on the Help Menu to enter your registration key.

A registration key will be provided when you register Wave Corrector. The key will enable Wave Corrector to process files longer than two minutes.

The Registration fee is UK£28, US$45 or the equivalent in Euros.

If you have an Internet connection and a credit card you can register on line using either UK ShareReg or ShareIt services.

UK ShareReg charges your credit card in UK pounds, ShareIt in US dollars or Euros.

To register via UK ShareReg , go to: http://www.uksharereg.com/wavecorr.html

To register via ShareIt, go to: http://shareit1.element5.com/programs.html?productid=130642. Alternatively, you can go to http://www.shareit.com and enter the program number there: 130642.

If you do not have access to the Internet, you can register via phone, fax or postal mail.

To pay in UK pounds, please  send a cheque for £28 to

Ganymede Test & Measurement

8 Hillman Close

Uxbridge

UB8 1QA

United Kingdom

To pay in US dollars or Euros, use one of the ShareIt contact points shown below. Please print out the following form, and fax or mail it to:

element 5 AG / ShareIt!

Vogelsanger Strasse 78

50823 Koeln

Germany

Phone: +49-221-2407279

Fax: +49-221-2407278

E-Mail: register@shareit.com

US and Canadian customers may also order by calling 1-800-903-4152. (Orders only please)

US check and cash orders can be sent to the Shareit US office at:

ShareIt! Inc.

PO Box 844

Greensburg, PA 15601-0844

USA

Tel. 724-850-8186

Fax. 724-850-8187

Registration form for Wave Corrector

Program No.: 130642

Last name: ___________________________________

First name: ____________________________________

Company: ____________________________________

Street and #: ______________________________________

City, State, postal code: ________________________________

Country: _______________________________________

Phone: _____________________________________

Fax: ________________________________________

E-Mail: ______________________________________

*** Please do not forget to include your e-mail address. ***

*** We will use e-mail to communicate with you. ***

How would like to receive the registration key?

e-mail - fax - postal mail

How would you like to pay the registration fee:

credit card - wire transfer - EuroCheque – cash

Credit card information (if applicable)

Credit card: Visa - Eurocard/Mastercard - American Express - Diners Club

Card holder: ________________________________

Card No.: ___________________________________ Expiration Date: ________

Date / Signature: ___________________________


Support
Wave Corrector Support

Support can be obtained via the Ganymede Test & Measurement website at:

www.ganymede.hemscott.net/wavecor.htm

Here you will find the latest version of Wave Corrector together with FAQ’s, bug reports and information regarding future releases.

Wave Corrector is developed by:

Ganymede Test & Measurement

8 Hillman Close

Uxbridge

Middlesex

UB8 1QA

United Kingdom

email: ganymede@hemscott.net


Context Sensitive Help
Context Help command

Use the Context Help command to obtain help on some portion of Wave Corrector.  When you choose the Toolbar's Context Help button, the mouse pointer will change to an arrow and question mark.  Then click somewhere in the Wave Corrector window, such as another Toolbar button.  The Help topic will be shown for the item you clicked.

Shortcut

Keys:	SHIFT+F1


Version History

30th March 2000 Version 1.2 released

See What’s New for changes from Version 1.12

21st  February 2000 Version 1.12 released.

Changes Version 1.12 from Version 1.11:

•	Compatibility between Wave Corrector and some other waveform editors and recorders was improved.

21st  January 2000 Version 1.11 released

Changes Version 1.11 from Version 1.1

The following reported bugs were fixed:

•	The output file was occasionally corrupted when 'save all tracks to one file' was selected.

•	A GPF could occur when 'Next Critical' was selected from the corrections menu.

4th  January 2000 Version 1.1 released

Changes from Version 1.0

The following reported bugs were fixed:

•	Scanning was truncated for some wave files longer than about 25 minutes.

•	Final Track was occasionally truncated, especially if track length was less than 30 seconds.

•	Temporary files were not always be deleted when a new wave file was loaded.

The following features were altered/added:

•	A much improved track management interface has been provided. 'Track View' is now clearly differentiated from 'Correction View' by means of a time versus amplitude histogram display including Track number labelling and track colours corresponding with the overview window.

•	The Overview Window display now also takes the form of a time versus amplitude histogram.

•	The position of the mouse pointer in the overview window is displayed as Minutes and Seconds in the Status Bar right-most pane. (Feature present but undocumented in version 1.0).

•	Options and Current directory are now saved to the registry and hence maintained across sessions.

•	A 'Restore Defaults' button has been added to the Options Dialog.

•	The correction algorithm at low sensitivity settings has been improved.

•	Track start and end points are now adjustable even when the input file consists of a single track. (In Version 1.0 at least two tracks needed to be present before a track boundary could be moved.)

•	When switching back and forth between Track Boundary View and Click Correction View, the scale is now memorised.

•	Track Boundary view is now scaled in seconds per division and multiples thereof.

•	The track list in the Tracks menu has been lengthened to  a maximum of 20 items.

•	Keyboard shortcuts have been added for various commonly used functions.

•	After inserting a manual correction, the program now immediately launches adjust mode to fine tune the position of the insertion.

•	The 'insert correction' confirmation dialogue is now optional.

•	To act as an additional warning, the screen background colour now changes to blue when in insert or adjust mode.

•	Aborting adjustment of a newly inserted correction now deletes the correction.

•	Restrictions on use of unregistered version have been relaxed to allow trialing of track detection.

•	The help file has been updated.

•	Other minor bug fixes.

December 1999

Version 1.0 released


Click Threshold

The click threshold can be set between 0 and 5 where ‘0’ is ‘Off’ ie no clicks will be detected. This alters the sensitivity of the click detection algorithm. The default value is 3.


Click Detect Mode

The click detect mode can be set to mono or stereo and should be set according to the characteristics of the source recording. If the original source is of a mono disc recorded with a stereo cartridge then there is an advantage to be gained by detecting on the stereo difference channel. This is because there is no legitimate difference signal and therefore all the difference channel signal represents unwanted noise. Somewhat confusingly, this mode is called MONO Mode.

On the other hand, if the original source is a stereo record, then it is better to detect on each channel separately (STEREO Mode)

To summarise:

Mono Record + Stereo Cartridge	Use Mono Mode
At all other times	Use Stereo Mode


Inter-Track Silence Thresold
Inter-track Silence Threshold

This setting determines the level at which the detector decides that a track has finished. It has a range of 0 to 9 where ‘0’ id ‘Off’ ie no tracks will be detected. The default level is 3.


Synchronise Track Boundaries

This setting is provided to enable the production of ‘Disc-At-Once’ recordings on your CD.

In synchronous mode, the end of a track is always made exactly adjacent to the start of the next track. It is also positioned on a 588 sample boundary. This enables the CD recorder to produce a seamless track change with no gap between tracks. You can only do this if your recording software supports Disc-At-Once’.

In non-synchronous mode, you can cut out unwanted gaps between tracks. Remember that the CD recorder will normally insert its own 2 second silence  between tracks.


Restore Defaults

Select to return all options to their default values as shown below:

Click Detect Threshold: 3

Click Detect Mode: Stereo

Inter-Track Silence Threshold: 3

Track Synchronisation: Off


Record level Meter
Volume Level Meter

The volume level meter consists of a dual (left/right) channel moving bar indicating in decibels relative to clipping level. The bar is colour coded according to the following criteria:

Green:	below –6dB
Yellow	-6 to –3 dB
Orange	0 to -3 dB
Red	0dB
A pair of overload indicators latch red when clipping level is reached.  These indicators can be reset by clicking over them with the mouse.


RecordCommands
Record Command Buttons

The following command buttons are provided:

• Record:	Start Recording. Note this button becomes a pause/continue button once recording has commenced.
• Stop	Stop Recording.
• Scan Now	Scan the recorded file for clicks and tracks.
• Done	Exit the recorder without scanning. Note the file is saved and can be scanned at a later time if required.


Normalising Recordings

The normalise function provides for post –recording adjustment of the recorded volume. Enter any value between 0 (clipping level) and –20 (10% of clipping level) in 1 dB steps.

Click ‘Normalise’ to set the maximum level to the level entered in the Edit Box.


Record Statistics

The Statistics box shows

•	The name of the file being recorded

•	The duration of the recording in minutes and seconds

•	The maximum level of the recording in decibels relative to clipping level

•	The name of the sound device used for the recording.