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[Discuss-gnuradio] Stupid Soundcard Sample Tricks
From: |
John Ackermann N8UR |
Subject: |
[Discuss-gnuradio] Stupid Soundcard Sample Tricks |
Date: |
Sun, 12 Jun 2005 16:30:52 -0400 |
User-agent: |
Debian Thunderbird 1.0.2 (X11/20050602) |
Hi --
After successfully getting gnuradio and the USRP to run on my laptop
(Thinkpad R40), I decided it was time to install it on my main hamshack
computer. Using the lessons I learned the first time, the code built
just fine and I can talk to the USRP.
However, I'm having trouble getting audio out of the box. The on-board
AC97 soundcard seems frozen at 48ksamples/second, and the example
programs I've tried print something like:
audio_alsa_sink[hw:0,0]: unable to support sampling rate 32000
card requested 48000 instead.
and I get extremely distorted audio and lots of underruns printing to
the console.
Any suggestions how to resolve this problem? I messed with the various
decimation params in the example tvrx_wfm program, but managed only to
prove how little I know what's going on inside the system.
Thanks,
John
- [Discuss-gnuradio] Stupid Soundcard Sample Tricks,
John Ackermann N8UR <=