Updated to version 2.2. Summary of changes:

----------------- Released 2.2a2, 6/20/02 -----------------------

7/17/02 (new feature) Support for Linux ALSA PCM sound drivers. New
compile time configure option --enable-alsa.

9/12/02 (enhancement) Many improvements to the MP3 decoder,
e.g. better seeking. (Wilkason)

9/12/02 (new feature) Automatic selection of default sample rate for
new sound objects.

----------------- Released 2.2a3, 9/13/02 -----------------------

9/19/02 (new feature) Modified sources (added CONST qualification on
pointers in Tcl API's where required) in order to compile cleanly with
Tcl8.4.0 as well as with earlier versions.

9/19/02 (enhancement) Updated package "snackogg" to support release
1.0 of Ogg/Vorbis.

9/29/02 (new feature) New sound command 'mix', which is used to mix
two sound objects with optional scaling.

9/29/02 (bug fix) Fixed problem with the 'convert' command and some
joint rate/channel conversion combinations. (Pique)

----------------- Released 2.2b1, 9/29/02 -----------------------

10/29/02 (bug fix) Fixed segmentation fault that occured when playing
a sound and start time > end time, and no callback was
registered. (Davis)

10/29/02 (bug fix) Fixed problem with crash on exit for some Windows
systems.

11/4/02 (enhancement) Better handling of mono output on stereo only
hardware.

11/5/02 (enhancement) Improvements to the MP3 decoder to allow
multiple sounds to cleanly decode one stream each
simultaneously. (Wilkason)

11/5/02 (change) Various fixes to configure.in/Makefile.in and
win/*.dsp.

----------------- Released 2.2b2, 11/6/02 -----------------------

11/14/02 (new feature) Support for Mac OS X. (McSpadden)

11/14/02 (bug fix) Fixed a couple of problems with sound I/O using
Windows DirectSound.

----------------- Released 2.2, 11/14/02 -----------------------

11/19/02 (bug fix) Fixed problem with SnackAudioPlayed() on Windows,
return value could roll over after lengthy sound output. (Wilkason)

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