ac3dec-0.5.5 Wed Aug 25 15:36:44 EDT 1999
-Fixed a cut and paste bug (argh!) in parse.c which potentially 
 screwed up delta bit allocation info.
-Martin Mueller <mamueller@topmail.de> informed me that I was missing
 some corrections from the AC-3 errata document. It turns out that 
 I used an earlier version of the errata when I initially wrote ac3dec.
 Fortunately the errata fix the outstanding bugs that I was pulling
 my hair out on for a long time. Woohoo! Thanks Martin. Kudos to Dolby
 Labs for keeping their documentation up to date as well.
-stereo downmixing (downmix.c) is now in. Matrix encoded surround 
 (Dolby Prologic Surround) should work too.
-clipping due to high level signals has been fixed. We normalize a
 block of samples by its maximum absolute value if the max exceeds 
 the %100 digital level. This shouldn't be a problem, but for some 
 reason some channels have a dynamic range that exceeds [-1.0,1.0].
 I blame the encoder :)
-Multiple track support in extract_ac3. Simply just give it the track
 number you want [1,8] after the filename.

ac3dec-0.5.4 Thu Jul 29 16:55:10 PDT 1999
-Fixed a stupid bug with the coupling channel that was causing
 high frequencies to be attenuated.
-Re-wrote the extract_ac3 tool.
-Added to a tool to verify the checksums on a given AC3 stream. 
 (tools/verify_ac3)

ac3dec-0.5.3  Mon Jul 12 10:45:56 PDT 1999
-Fixed problems related to streams with coupling channel enabled.
-Minor performance enhancements

ac3dec-0.5.2  Sun Jul  4 12:00:25 PDT 1999
-output_linux.c patch provided by Michael Holzt <kju@flummi.de>

ac3dec-0.5.1  Wed Jun 30 17:48:52 PDT 1999
-Compiles and dies gracefully under Linux now.

ac3dec-0.5.0  Wed Jun 23 11:06:06 EDT 1999
-First public release of ac3dec.
