[maemo-developers] audio quality problems using esd daemon

From: Bruce Forsberg bruce.forsberg at gmail.com
Date: Thu Apr 2 09:58:47 EEST 2009
I am developing a sound application for Diablo. I am having audio
quality problems when I use non standard audio sample rates such as
32000 Hz. I have a high quality sample rate converter and when I use
this to convert to 44100 it sounds like it should. If I use 32000 Hz
it has a raspy sound. I am assuming that esd uses linear interpolation
to up convert to 44100 thus producing the distortion. Has anybody else
noticed this or looked into this problem?

I have as a future item to convert from esd to gstreamer. Currently my
app (otrplayer) architecture does not easily fit the gstreamer
architecture thus will be done at a later date.

Bruce

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