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-
- DSound V1.50
-
- DSound is Copyright 1991-1994 by Dave Schreiber, All Rights Reserved.
- This program is freely distributable, but may not be sold (although a small
- fee for copying, media, etc. may be charged).
-
- The files minrexx.o and minrexx.h, included with this distribution,
- are exempt from this copyright, as I did not create them.
-
- DSound is utility I wrote to play 8SVX sound samples directly off a
- hard drive. While it only takes up a small amount of chip RAM, it can play
- samples of unlimited size off a hard drive (it doesn't work to well with
- floppies however). Currently, it cannot play compressed sound files.
-
- USING DSOUND
- ------------
- DSound can be used from any form of mass storage (such as hard drives,
- flopticals, Syquest drives, etc) except floppy disks. To use DSound, type
- "DSound [flags] <filename>" (without the quotes), where <filename> is the
- name of the file that you want to play, and [flags] are any of the flags
- listed below under "Usage." To stop DSound before a sample is finished
- playing, either click on the close gadget in the DSound window (which is
- displayed while DSound is playing a sound sample, unless the '-w' flag is
- used), press CTRL-C in the Shell window from which DSound was started, type
- "break <clinum>", where <clinum> is the number of the Shell window that
- DSound is running in, or use DSound's ARexx port (see below).
-
- Usage:
- dsound [-l][-r][-2][-f][-m][-o][-w][-n][-t]
- [-s<speed>][-v<volume>][-b<bufsize>] file
-
- Where the flags are defined as such:
- -l -- Play the sample using the left speaker
- -r -- Play the sample using the right speaker
- -2 -- Play the sample using both speakers
- -f -- Shut off the low-pass filter
- -m -- Load the entire sample into memory
- -o -- Play the sample continuously (loop)
- -w -- Do not open the DSound window
- -n -- Do not show the sample name in the window
- -t -- Do not show the sample times in the window
- -s<speed> -- Play the sample at the given speed (samples/sec)
- -v<volume> -- Play the sample at the given volume (0-64)
- -b<bufsize> -- Use a buffer of size <bufsize> (default is 30K)
-
- If you don't specify any flags, the defaults are to play the sound out of
- the first available speaker, with the filter on, at the speed and volume
- specified in the soundfile.
-
- New with version 1.40 of DSound is the ability to halt DSound via an
- ARexx command. Specifically, sending a copy of DSound the command "quit"
- will cause it to immediate stop playing the sample and exit. DSound's port
- is called "DSound.x", where 'x' ranges from 1 to 99; each instance of
- DSound will have a different value for 'x'. An ARexx script which
- demonstrates this, called "QuitDSound.rx", is included in this
- distribution.
-
- WORKBENCH SUPPORT
- -----------------
- Another feature found first in version 1.40 is Workbench support. If
- you make DSound the "default tool" of some sound sample, double clicking on
- that sample's icon will cause DSound to play the sample. You can also play
- a sample by clicking once on DSound's icon, then (while holding the shift
- key down) double-clicking on the sound sample's icon. In either case, when
- using DSound from Workbench, you cannot specify the various options given
- under "Usage;" you need to run DSound from the CLI in order to adjust how
- DSound plays samples. Quitting from DSound, when run from Workbench, is
- accomplished either by clicking on DSound's close gadget or using an ARexx
- script.
-
- With version 1.50, DSound now supports Workbench tool types. These
- are program options entered in the "Tool Types" box, which is part of the
- Workbench "Information" window for an icon. One can bring up this window
- by clicking on an icon and selecting the "Information..." item from the
- "Icons" menus in Workbench. Each tool type is in the form
- "<attribute>=<value>", where <attribute> is a particular program attribute
- (such as playback volume) and <value> is the value it is to take; both
- <attribute> and <value> have to be in all capital letters. DSound will use
- tool type information from both its own icon and the icon of the sound
- sample to be played; if there is a conflict between tool type information
- in the two icons, the information in the sound sample's icon takes
- precedence.
-
- A list of tool type attributes follows, along with equivalent command-line
- flags and default values used when given attributes are not specified:
-
- SPEAKER -- Determines which speaker the sample plays out of. The <value>
- for this attribute can be "LEFT" (left speaker, "-l"), "RIGHT" (right
- speaker "-r"), "BOTH" (both speakers, "-2"), or "DONTCARE" (when you don't
- care what speaker is used). The default value is "DONTCARE".
-
- SPEED -- The playback speed (equivalent to the "-s" flag). The <value> is
- a number less than 28000 which is the speed (in samples/second) at which
- the sample should be played. The default speed is specified by
- each individual sound sample.
-
- VOLUME -- The playback volume (equivalent to the "-v" flag). <value>
- ranges from 0 (silent) to 64 (loudest). The default volume is 64
- when not specified by a sound sample.
-
- BUFSIZE -- The amount of memory dedicated to playing samples, in bytes.
- Default is 30000.
-
- (The remaining attributes take either "YES" or "NO" as <value>)
-
- PLAYWINDOW -- Determines if the DSound window is opened. Default is "YES".
- Equivalent to the "-w" flag.
-
- TITLETIME -- If the DSound window is opened, determines if it should
- contain sample times. Default is "YES". Equivalent to the "-t" flag.
-
- TITLENAME -- If the DSound window is opened, determines if it should
- contain the name of the sample. Default is "YES". Equivalent to the "-n"
- flag.
-
- READALL -- Determines if the entire sample should be loaded into memory at
- once, rather than being played off of disk. Defaults to "NO". Equivalent
- to the "-m" flag.
-
- FILTER -- Determines if the low-pass filter should enabled during playback.
- Defaults to "YES". Equivalent to the "-f" flag.
-
- LOOP -- Determines if the sample should be played continuously (in a loop).
- Defaults to "NO". Equivalent to the "-o" flag. WARNING: specifying
- "LOOP=YES" and "PLAYWINDOW=NO" will cause DSound to play a sample
- continuously without any obvious way of stopping it. Because of this, a
- requester will pop up and request confirmation when these two tool types
- have been specified so as to ensure that that's really what you want. In
- any case, you can use ARexx to stop DSound in this instance.
-
- COMPILING DSOUND
- ---------------
- I've included the source for DSound. To compile (using SAS/C V6) type:
- smake
-
- GETTING IN TOUCH WITH THE THE AUTHOR
- ------------------------------------
- If you have any questions, comments, etc. regarding DSound, you can get in
- touch with me via Internet e-mail at davids@cse.ucsc.edu .
-
-