Like all MP3 encoders, LAME implemented techniques covered by patents owned by the Fraunhofer Society and others. May 2007 (LAME 3.98): default variable bitrate encoding speed is vastly improved.LAME no longer requires users to enter complicated parameters to produce good results. December 2003 (LAME 3.94): substantial improvement to default settings, along with improved speed.LAME is not a patch anymore, but a full encoder. May 2000 (LAME 3.81): the last pieces of the original ISO demonstration code are removed.November 1999 (LAME 3.52): LAME switches from a GPL license to an LGPL license, which allows using it with closed-source applications.(LAME 3.99 also supports the technologically simpler average bitrate (ABR), but it is unclear whether it was added before or with VBR.) Soon after this, LAME also became able to target lower sampling frequencies from MPEG-2. June 1999 (LAME 3.11): The first variable bitrate (VBR) implementation is released.May 1999 (LAME 3.0): a new psychoacoustic model (GPSYCHO) is released.A few key improvements since LAME 3.x, in chronological order: Mark Taylor then started pursuing increased quality in addition to better speed, and released version 3.0 featuring gpsycho, a new psychoacoustic model he developed. Mike Cheng eventually left leadership and started working on tooLAME (an MP2 encoder). The project quickly became a team project. That branch (a patch against the reference sources) became Lame 2.0. His goal was only to speed up the dist10 sources, and leave its quality untouched. After some quality concerns raised by others, he decided to start again from scratch based on the "dist10" MPEG reference software sources. Īround mid-1998, Mike Cheng created LAME 1.0 as a set of modifications against the "8Hz-MP3" encoder source code. The name LAME is a recursive acronym for " LAME Ain't an MP3 Encoder". LAME is now bundled with Audacity, which previously required a separate download for LAME. This avoided including LAME itself, which use patented techniques, and so required patent licenses in some countries. LAME was required by some programs released as free software in which LAME was linked for MP3 support, but the patent has expired. The LAME encoder outperforms early encoders like 元enc and possibly the "gold standard encoder" MP3enc, both marketed by Fraunhofer. LAME is a free software project that was first released in 1998, and has incorporated many improvements since then, including an improved psychoacoustic model. LAME is a software encoder that converts digital audio into the MP3 Audio coding format. mp3 and unencoded audio files./ 13 October 2017 5 years ago ( 13 October 2017) MP3x: a GTK/X-Window MP3 frame analyzer for both.GPSYCHO: a GPL'd psycho acoustic and noise shaping model.Encoding engine can be compiled as a shared library (Linux/UNIX), DLL, Directshow filter or ACM codec (Windows).CBR (constant bitrate) and two types of variable bitrate, VBR and ABR.MPEG1, MPEG2 and MPEG2.5 layer III encoding.Many improvements in quality in speed over ISO reference software.Fast! Encodes faster than real time on a PII 266 at highest quality mode.Quality better than all other encoders at most bitrates. Both quality and speed improvements are still happening, probably making LAME the only MP3 encoder still being actively developed. Today, LAME is considered the best MP3 encoder at mid-high bitrates and at VBR, mostly thanks to the dedicated work of its developers and the open-source licensing model that allowed the project to tap into engineering resources from all around the world. In early 2003 Mark left project leadership, and since then the project has been lead through the cooperation of the active developers (currently three individuals). He released version 3.0 featuring gpsycho, a new psychoacoustic model he developed. He can be considered the initiator of the LAME project in its current form. Mark Taylor became a leader and started pursuing better quality in addition to increased speed. Mike Cheng eventually left leadership and started working on tooLame, an MP2 encoder. That branch (a patch against the reference sources) became Lame 2.0, and with Lame 3.81 all of dist10 code was replaced, making LAME no more only a patch. His goal was only to speed up the dist10 sources and leave its quality untouched. After some quality concerns raised by others, he decided to start from scratch based on the dist10 sources. Mike Cheng started it as a patch against the 8hz-MP3 encoder sources. LAME development started around mid-1998. All software from the LAME project can be found in the project's file area. For binaries and GUI based programs which can use LAME (or include fully licensed versions of LAME), check the LAME related links. LAME is only distribued in source code form. LAME is a high quality MPEG Audio Layer III (MP3) encoder licensed under the LGPL.
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