Re: coreaudio/quicktime mp3 decoder equivalent?
Re: coreaudio/quicktime mp3 decoder equivalent?
- Subject: Re: coreaudio/quicktime mp3 decoder equivalent?
- From: William Stewart <email@hidden>
- Date: Mon, 14 Jul 2008 10:53:28 -0700
Its the same decoder in both places.
If you do (on Leopard) afconvert Your/file.mp3 /tmp/file.wav -d LEI16 -
f WAVE -v
then you will have a completely clean MP3 file decoded (this is the
same as the ExtAF version) - if you compare the result of that with
your two current versions, then the one that it is not identical too
is the one that is doing something more to the audio than just
decoding it.
Bill
On Jul 14, 2008, at 7:56 AM, Hendrik Schreiber wrote:
Hi,
got a quick question regarding the CoreAudio and QuickTime mp3 audio
decoders.
I'm moving some code from quicktime to coreaudio and have been
testing to make sure things are all correct.
Specifically, I have decoded an mp3 file with QuickTime and
CoreAudio (using ExtAudioFile) and compared the PCM result.
It looks like the results are similar, but not the identical.
So I wonder, whether I am doing something wrong, or whether the two
mp3 decoders really aren't identical.
Thanks,
-hendrik
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