4 MPEG_AUDIO_ENCODE, MISCELLANEOUS, MPEG audio encoder  8 ISO MPEG Audio Subgroup Software Simulation Group (1996) ISO 13818-3 MPEG-2 Audio Codec  I Mpeg audio Layer 2 & 3 encoder port under OpenVMS                Oct 1997 1 =================================================   M The source kit contains ISO mpeg original audio encoder and decoder. Only the F encoder is ported under OpenVMS, an optimised decoder already existing (mpeg3play).  O You can find the encoder sources , object and executables files for VAX & Alpha L into [.LSF.ENCODER] directory. This encoder is Mpeg-1 Layer II and layer IIIM capable. However, it is not optimised and you need a fast cpu especially with 
 layer III.  N You can compress at bitrates as low as 128 kbs before really earing artifacts,L even with Layer II !! At such a bitrate, the resulting Mpeg file of a 44 KhzK 16 bits stereo stream is 30% smaller than a mono 8 bits 22 Khz WAV file and  gives a far better quality.    Patrick Moreau pmoreau@cena.dgac.fr moreau_p@decus.fr 