New submission from Philippe CASTELL <pcast...@free.fr>:

Hi

I have a problem with the audio quality, encoding wav files 
with the mp2 encoder with bitrate > 256kbits/s

from the same audio file, the result of

ffmpeg -i source.wav -ab 256000 destination.mp2

regarding the audio quality is much better than a 

ffmpeg -i source.wav -ab 384000 destination.mp2

or even a 

ffmpeg -i source.wav -ab 320000 destination.mp2

I use source as 48000 Khz stereo files. I have done the same 
tests with 44100 Khz stereo files.


I listen to artefact in the trebble spectrum

It s reproductible with all media files.


thanks



Philippe CASTELL

----------
messages: 4142
priority: normal
status: new
substatus: new
title: audio quality problem with mp2 compression at bitrate>256kb/s
topic: ffmpeg
type: bug

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FFmpeg issue tracker <ffmpeg_iss...@live.polito.it>
<https://roundup.ffmpeg.org/roundup/ffmpeg/issue817>
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