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Re: [Discuss-gnuradio] Re: Problem with OTA capture examples
From: |
Peter O'Doherty |
Subject: |
Re: [Discuss-gnuradio] Re: Problem with OTA capture examples |
Date: |
Wed, 17 Dec 2008 16:26:57 +0100 |
User-agent: |
Thunderbird 2.0.0.18 (X11/20081125) |
Thanks a lot. That does the job.
But now I get this message:
len(channel_coeffs) = 795
>>> gr_fir_ccc: using SSE
len(audio_coeffs) = 51
>>> gr_fir_fff: using SSE
audio_alsa_sink[hw:0,0]: unable to support sampling rate 32000
card requested 44100 instead.
audio_alsa_sink[hw:0,0]: set_period_time_near failed: Invalid argument
Traceback (most recent call last):
File "./am_rcv.py", line 105, in <module>
main (sys.argv[1:])
File "./am_rcv.py", line 98, in main
fg = build_graph (filename, freq_offset_khz)
File "./am_rcv.py", line 78, in build_graph
audio_sink = audio.sink (int (audio_rate))
File "/usr/local/lib/python2.5/site-packages/gnuradio/audio_alsa.py",
line 236, in sink
return _audio_alsa.sink(*args)
RuntimeError: audio_alsa_sink
So I guess correcting the adc_rate to 88.2e6 solves the sampling rate error:
len(channel_coeffs) = 1095
>>> gr_fir_ccc: using SSE
len(audio_coeffs) = 69
>>> gr_fir_fff: using SSE
audio_alsa_sink[hw:0,0]: set_period_time_near failed: Invalid argument
Traceback (most recent call last):
File "./am_rcv.py", line 105, in <module>
main (sys.argv[1:])
File "./am_rcv.py", line 98, in main
fg = build_graph (filename, freq_offset_khz)
File "./am_rcv.py", line 78, in build_graph
audio_sink = audio.sink (int (audio_rate))
File "/usr/local/lib/python2.5/site-packages/gnuradio/audio_alsa.py",
line 236, in sink
return _audio_alsa.sink(*args)
RuntimeError: audio_alsa_sink
But what about the audio_alsa_sink error?
Thanks again,
Peter
On Wed, Dec 17, 2008 at 03:47:57PM +0100, Peter O'Doherty wrote:
The same thing happens when I simply copy a file in the
~/gnuradio-examples/python/audio directory, give it a new name and try
to run it.
Hi,
I'm working through the examples on this site:
http://www.kd7lmo.net/ground_gnuradio_ota.html
and am trying to run this code:
http://www.kd7lmo.net/gnuradio/am_rcv.py
If I run this in the terminal:
./am_rcv.py hf_10000khz_256_complex.dat 0
I get this:
bash: ./am_rcv.py: Permission denied
Anyone have any idea what I'm doing wrong?
Thanks,
Peter
You need to ensure that the script is executable.
$ chmod +x am_rcv.py
Eric