Removing DC Offset |
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The DC Offset dialog allows you change the baseline of a sound file to compensate for electrical mismatches between your sound card and input device. Glitches and other unexpected results can occur when sound effects are applied to files that contain DC offsets.
To display this dialog, choose DC Offset from the Process menu.
An
easy way to spot DC offset is to zoom in to a silent section of your
sound file. If the silent waveform matches the centerline in the
waveform display, your file does not contain DC offset.
From the Process menu, choose DC offset.
Click the Automatically detect and remove radio button.
Click the OK button.
To
speed processing, select the Compute
DC offset from first 5 seconds only check
box. Sound Forge will analyze only the first 5 seconds of a
sound file when measuring the DC offset. The only time that 5 seconds
is not sufficient is if a long fade-in or mute has been applied at
the beginning of the file.
Determine the amount of DC offset in your file:
a. From the Tools menu, choose Statistics.
b. Record the values displayed in the Average value (DC offset) columns.
c. Click the OK button.
Click the Adjust DC offset by radio button and enter a value in the edit box to specify an offset value.
Click the OK button
To
speed processing, select the Compute
DC offset from first 5 seconds only
check box. Sound Forge will analyze only the first 5 seconds of a
sound file when measuring the DC offset. The only time that 5 seconds
is not sufficient is if a long fade-in or mute has been applied at
the beginning of the file.
For more information about using processing dialog controls, click here.