[linux-audio-user] Converting sample rate: failed...

[Erik de Castro Lopo]

On Sun, 12 Sep 2004 06:17:13 +0400
Mikhail Ramendik <mr at ramendik.ru> wrote:

> Did you get my original, or just test with your own?

I used your original file and then converted it at my end.

> If you did get the original: soes it sound different from my
> test-c0.wav?

I also just downloaded that and it doesn't sound very different
from mine. Maybe I've got a tin ear, but I can't hear a whole
lot of difference between the original file, your conversion
using libsamplerate-0.0.15 and my conversion using
libsamplerate-0.1.1.

I've also done a comparison of the hexdumps of my conversion
and yours. There are differences, but nothing sufficient to
to be called :

> interpolators) makes the sound *much* worse, the voice is distorted and
> becomes "ringing". 

So, does your sound card actually support 44.1kHz audio out?
If not, ALSA may be doing a sample rate conversion from 44.1
back to 48kHz and it might be that conversion which is making
a mess of things. I know there have been some bugs in the
ALSA sample rate converter recently.

Erik
-- 
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  Erik de Castro Lopo  nospam at mega-nerd.com (Yes it's valid)
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"I ran it on my DeathStation 9000 and demons flew out of my nose." --Kaz