21 lines
953 B
Text
21 lines
953 B
Text
MAD (libmad) is a high-quality MPEG audio decoder. It currently
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supports MPEG-1 and the MPEG-2 extension to Lower Sampling Frequencies,
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as well as the so-called MPEG 2.5 format. All three audio layers
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(Layer I, Layer II, and Layer III a.k.a. MP3) are fully implemented.
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MAD does not yet support MPEG-2 multichannel audio (although it
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should be backward compatible with such streams) nor does it
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currently support AAC.
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MAD has the following special features:
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- 24-bit PCM output
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- 100% fixed-point (integer) computation
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- completely new implementation based on the ISO/IEC standards
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- distributed under the terms of the GNU General Public License (GPL)
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Because MAD provides full 24-bit PCM output, applications using
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MAD are able to produce high quality audio. Even when the output
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device supports only 16-bit PCM, applications can use the extra
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resolution to increase the audible dynamic range through the use
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of dithering or noise shaping.
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