LAME - encoder 3.90 neu !!

**yggr** · 22. 12. 2001, 12:29

http://www.doom9.org/Soft21/Files/Audio/lame3.90.zip gibts hier

die infos:

LAME 3.90 December 21 2001
Many small improvements and bug fixes not added to history
John Dahlstrom: more fine tuning on the auto adjustment of the ATH
Robert Hegemann: small speed and quality improvements for the old VBR code (--vbr-old).
Robert Hegemann: some short block bug fixes
Robert Hegemann: Big improvements to --vbr-mtrh, now encodes much more frequencies over 16khz
Robert Hegemann: --vbr-new code disabled (outdated and lower quality) and replaced with --vbr-mtrh (Both --vbr-new and --vbr-mtrh now default to mtrh)
Robert Hegemann: reordering of --longhelp to give more information, --extrahelp dropped
Darin Morrison: Totally revamped and extremely high quality unified preset system and other general quality improvements now available with --alt-presets:
some improvements to psychoacoustics (vast improvements over default L.A.M.E. modes) when --alt-preset is used including:
Improved tuning of short block usage.
Improved quantization selection usage (the -X modes), now adapts between appropriate modes on the fly. Also helps on "dropout" problems and with pre-echo cases.
Improved joint stereo usage. Thresholds are better tuned now and fix some "dropout" problems L.A.M.E. suffers from on clips like serioustrouble.
Improved noise shaping usage. Now switches between noise shaping modes on the fly (toggles -Z on and off when appropriate) which allows lower bitrates but without the quality compromise.
Clips vastly improved over default L.A.M.E. modes (vbr/cbr/abr, including --r3mix): castanets, florida_seq, death2, fatboy, spahm, gbtinc, ravebase, short, florida_seq, hihat, bassdrum, 2nd_vent_clip, serioustrouble, bloodline, and others. No degraded clips known.
VBR bitrates are now more "stable" with less fluctuation -- not dipping too low on some music and not increasing too high unnecessarily on other music. "--alt-preset standard" provides bitrates roughly within the range of 180-220kbps, often averaging close to 192kbps.
--alt-presets replace the --dm-presets and "metal" preset is removed and replaced with generic abr and cbr presets.
--alt-preset extreme (note the 'e') replaces xtreme to help eliminate some confusion
--alt-preset vbr modes now have a fast option which offers almost no compromise in speed.
--alt-preset standard (and "fast standard") are now much lower in bitrate, matching --r3mix with an overall average, though offering higher quality especially on difficult test samples.
--alt-presets are no longer just "presets" as in a collection of switches, instead they are now quality "modes" because of special code level tunings (those mentioned above).
Use --alt-preset help for more information.
Roel VdB: more tuning on the --r3mix preset
Jon Dee, Roel VdB: INFO tag

Alexander Leidinger, mp3gain@hotmail.com: added --scale-l and --scale-r to scale stereo channels independantly

Takehiro Tominaga: new noise shaping mode, offering more "cutting edge" shaping according to masking, enabled via -q1

Mark Taylor: More work on --nogap

Gabriel Bouvigne: Small changes to abr code for more accurate final bitrate

Gabriel Bouvigne, mp3gain@hotmail.com: Preliminary ReplayGain analysis code added (not functional yet)