LAME MP3 Encoder
The LAME MP3 Encoder this being version 3.99 was created to encode MP3 files. This program allows you to encode MP3 files at the bit rate of 96kbps which is very high quality. One of the best configurations for the Lame MP3 Encoder to get the best quality MP3 is “-b 192 -m s -h -q 0″.
The LAME MP3 Encoder is still one of the best-known Open Source MP3 encoders on the internet. LAME development started around mid-1998. Mike Cheng started it as a patch against the 8hz-MP3 encoder sources. After some quality concerns raised by others, he decided to start from scratch based on the dist10 sources. His goal was only to speed up the dist10 sources, and leave its quality untouched. That branch (a patch against the reference sources) became Lame 2.0, and not until Lame 3.81 (May 2000) the latest remainings of dist10 code were removed, making LAME no more only a patch.
Features of LAME MP3 Encoder:
- MPEG1 sample rates are 32Khz, 44.1Khz and 48Khz.
- MPEG2 sample rates are 16Khz, 22.05Khz and 24Khz.
MPEG 2.5 does not exist as a standard. It is an extension from Fraunhofer that added the possibility to encode in 8Khz, 11,025Khz and 12Khz. - The stereo encoding of LAME automatically switches between Mid-Side and simple-stereo to maximize the available bits while preserving the quality.
Whats in the LAME MP3 Package:
- Josep Maria Antolín Segura
- Documentation work
- Rogério Brito
- Improve Debian packaging.
- Include suggestions made by Fabian Greffrat
- Update version of the Debian package to reflect that it is taken from CVS.
- Get rid of a transitional package
- Much more to come…
- Minor fix to validate the history file correctly
- Improve Debian packaging.
- Robert Hegemann
- Porting of LAME mp3rtp program to Windows platform
- Fix: for free format mp3 above 320 kbps, the maximum allowed bits was limited too far.
- Changed behaviour: LAME replaces common suffixes by MP3/WAV when no output filename was given. For example, a simple lame x.wav will create output file x.mp3
- UNICODE support on Windows OS, file names and ID3v2 tags; related: Bugtracker item [ 3052230 ] Lame.exe can’t find files with non-ASCII names
- Added support for WAVE FORMAT IEEE FLOAT input files
- New switch –swap-channel added, see tracker item [ 1118412 ] RFE: option to swap L and R channels
- New switches -m l and -m r to select either left or right channel for mono encoding.
- Feature request item [ 3134258 ] Allow larger images with LAME (>128KB)
- Fix for Bugtracker item [ 2962223 ] Encoder delay and padding values ignored when re-encoding
- Fix for Bugtracker item [ 2986823 ] Error when building Lame with NASM support -still exists
- Fix for Bugtracker item [ 3125235 ] make -f Makefile.mingw32 fails
- Fix for Bugtracker item [ 3021935 ] ID3 tag TXXX cannot be used more than once
- Fix for Bugtracker item [ 3025801 ] gain_analysis.h needs int constants
- Fix for Bugtracker item [ 3277412 ] Segmentation fault at layer2.c:105 with –decode
- Changes in new VBR code:
- tuning on PSY model
- tuning on VBR scale and resulting bitrates
- Minor bug fix for sfb21 encoding
- All encoding modes use the PSY model from new VBR code, addresses Bugtracker item [ 3187397 ] Strange compression behavior
- Fix for a possible out of bounds array access in HIP decoder, addresses Bugtracker item [ 3091776 ] crash at III_dequantize_sample
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