[Speex-dev] added background noise problem?

Malcolm Baldridge speex at paypc.com
Mon Sep 6 02:07:29 PDT 2004

> The background noise is unacceptable. I'll have to stick with 32kbps
> mp3s eventhough the files are 70% larger.

Hrm, I didn't see the email that spawned this one.

If you're compressing mostly voice, I've found that using lower bitrate MP3
(8, 16, 24, or 32 kbps) for 16, 22.05 and 24 kHz sampling rate audio.

I've used LAME with the following settings for EXCELLENT results:

lame --nohist -a -m m -q 4 --vbr-new -V 6 -b 8 -B 32

You don't mention your audio application or environment.  Voice won't suffer
if you resample it at 8-11KHz.  LAME has a reasonable resampler for that.


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