Fraunhofer l3enc was the first public software able to encode PCM (.wav) files to the MP3 format. The first public version was released in July 1994. This commandline tool was shareware and limited to 112 kbit/s. It was available for MS-DOS, Linux, Solaris, SunOS, NeXTstep and IRIX. A licence that allowed full use (encoding up to 320 kbit/s) cost 350 Deutsche Mark (DEM), about 250 US$.
Since the release (9 September 1995) of Fraunhofer WinPlay3, the first realtime MP3 software player, people were able to store and play back MP3 files on PCs. For full playback quality (stereo) one would have needed to meet the minimum requirements of a 486DX2/66 processor.
By the end of 1997 l3enc stopped being developed in favour of the development of MP3enc, which is the successor to l3enc. It was often referred to as the “gold standard of encoders”. It was available for MS Windows, Linux, Solaris, SunOS, IRIX and Alpha. Development of MP3enc stopped in late 1998 to favour development of a parallel branch FhG had been developing for some time, called Fastencc. All of these programs are no longer actively marketed.
- LAME – free software codec used to encode/compress .mp3 audio
- "MP3 Todays Technology". Lots of Informative Information about Music. Lots of Informative Information about Music. 2005. Archived from the original on May 17, 2008. Retrieved 19 March 2013.
- "FhG l3enc MP3 Encoder on Really Rare Wares". 2007. Archived from the original on 2009-10-17. Retrieved 2010-08-11.
- "LAME MP3 Encoder :: Related Links". LAME Team. Retrieved 19 March 2013.
- Fraunhofer-Gesellschaft (1999). "MP3 Encoder". Archived from the original on 2000-05-11. Retrieved 2010-08-11.
- "FhG MP3enc MP3 encoder on Really Rare Wares (archived website)". 2007. Archived from the original on 2009-08-22. Retrieved 2013-03-18.
- "mp3 - Fraunhofer Institute for Integrated Circuits". Fraunhofer IIS. Retrieved 19 March 2013.
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