Wiki > Main > MasLimitations (compare)
Difference: MasLimitations (r3 vs. r2)
An extended test showed that the MAS MPEG audio decoders seems to not correctly decode all valid MPEG version/ layer/ bitrate combinations. This page is about the details. Problems do exist with MPEG2.5 layer 3.
These limitations usually don't affect music playback at all. Usually music does not use MPEG2.5, these low sample frequencies are aimed at speech compression.
However, there is one area where the MPEG2.5 limitations may hit - creation of voice files. The voice file size is limited to ~1.5 MB. As there are more and more entries added to voicing, there are 2 options to achieve higher compression:
As soon as the sample frequency is lowered to 12 kHz, the MPEG2.5 playback problems may hit. When frame sizes of >64 kbit/s are used, dropouts occur. To avoid this, use the lame option
* These bitrates are forbidden for layer 2 stereo.
r3 - 05 Oct 2005 - 06:10:00 - JensArnoldRevision r3 - 05 Oct 2005 - 06:10 - JensArnold
Revision r2 - 20 Sep 2005 - 16:31 - JonasHaeggqvist
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