Complete Implementation Of a MP3 Decoder

A full implementation of MPEG 1 Payer 3 standard on matlab.

Description

 The whole decoding process has been implemented natively on MATLAB. I need help in streamlining it so that it can run real-time. top level module is decoder.m. It takes in as input parameter the file name or file path and returns the decoded data & sampling frequency.

• MATLAB release: MATLAB 7.6 (R2008a)

[Andy Nadeau]

I had to work out some bugs before the output matched the the pcm (pulse code modulated) samples from the mpg123 decoder.

here are the bugs:
decoder line 117: ms_stereo should be 0 if mode_extension_check == 0
decoder line 278: add1_range should never be set to [0 0]. When region_address1==0 the number of critical bands using the first Huffman table is one more than that. The fist critical should be included in region1 by removing the if statment and keeping the statments under the true condition.