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3rd July 2015, 09:02 | #1 | Link |
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MPEG 1 Layer 2 a.k.a. MP2 software decoder?
Searching for good MP2 software decoder - seem that MP2 decoder in ffmpeg is limited to 16bits, foobar2000 decoder is also limited and seem behave unstable in particular situations...
So is there any 24 - xx bit int of float decoder available (open source / freeware preferred). Thnx in Advance! |
3rd July 2015, 09:32 | #2 | Link |
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ffmpeg has a float decoder (ie. -c:a mp2float) . Is that one only producing 16-bit of actual relevant data?
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LAV Filters - open source ffmpeg based media splitter and decoders |
3rd July 2015, 10:00 | #3 | Link | |
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Quote:
Code:
@ffmpeg -i %1 -vn -c:a pcm_f32le -y %1_pcm_f32le.wav |
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3rd July 2015, 11:05 | #4 | Link |
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Try adding "-c:a mp2float" before the "-i" command, that should make it use the float decoder. No idea why it defaults to the s16 decoder...
Not sure how much more precision that will actually give you, but at least its not artificially cut down to 16-bit.
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3rd July 2015, 15:55 | #5 | Link | |
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Thx, indeed default is not float one - but still i see no improvement - depends on source (encoder) and decoder i see strange results (discrete tones not existing in source) - this is very strange - such low quality... (between -70 and -90dBFS noise floor). |
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11th July 2015, 18:55 | #6 | Link |
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What about mpg123 decoder library?
http://mpg123.de/
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15th July 2015, 09:19 | #7 | Link | |
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15th July 2015, 18:43 | #8 | Link | |
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Quote:
https://github.com/lordmulder/LameXP...ster/res/tools
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16th July 2015, 12:15 | #9 | Link | |
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Quote:
and btw - is there any reference audio MPEG-1 Layer I and II decoder (similar to ISO MPEG-2 video decoder - mpeg2dec) I should say downloadable reference decoder as buying ISO/IEC TR 13818-5:2005 have no sense to me... Last edited by pandy; 17th July 2015 at 09:16. |
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