Today's Topics:
- Re: PCM Outout Quality Issue (Rob Leslie)
Subject: Re: [mad-dev] PCM Outout Quality Issue (From): Rob Leslie rob@mars.org Date: Fri, 25 Jul 2003 13:36:13 -0700 (To): mad-dev@lists.mars.org
On Wednesday, July 23, 2003, at 08:27 PM, Yeh You-Ying wrote:
What I did is just to decode a mp3 file with my minimad, and generate an output, for instance, pcm.wav. I played this raw pcm data with Sound Forge. Ohhh...it sounds terrible.
It's important to realize minimad doesn't output a WAV file. It just writes raw PCM data in little-endian format. Make sure Sound Forge isn't treating the file as a WAV file or reading the PCM as big-endian samples.
Dear Rob,
Thanks for your reply. I knew that the output is raw PCM data. And the Sound Forge can play raw PCM data no matter what extsion filename is. I can hear the PCM data via Sound Forge, just the quality is not good, too much nosie. As the decription of scale( ) in minimad.c, there is no noise shaping for scaling. It that the reason about the quality issue ? Thanks a lot.
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Yeh You-Ying