Unable to support sampling rate 32000 card requested 44100 instead.UaUaUaUaUaUaUaUaU

GNU Radio
1

When I run following program

gr-utils/src/python/usrp_rx_nogui.py -f 910M -R A -m AM

I got message saying

gr_fir_ccc: using SSE
gr_fir_fff: using SSE
audio_alsa_sink[hw:0,0]: unable to support sampling rate 32000
card requested 44100 instead.
aUaUaUaUaUaUaUaUaU

what does this mean? Why it is unable to support sampling rate 32000.
What does aUaUaUau indicates?

chandu [email protected]

2

2010/1/22 chandu [email protected]:

aUaUaUaUaUaUaUaUaU

what does this mean? Why it is unable to support sampling rate 32000.

Many cheap audio devices only support 44.1kHz, 48kHz and maybe 96kHz,
and they leave it to the driver to do the resampling. ALSA is not
always able to do that. In such cases you can use the rational
re-sampler block to convert the audio stream to 44.1k, see
examples/audio/test_resampler.py for how it works.

What does aUaUaUau indicates?

Audio under-run. The audio sink expects data at 44.1kHz but you only
have 32kHz

Alex