Re: [Discuss-gnuradio] Dial tone under GNU Radio Companion fails

[Allen Vinegar]

48000 did the trick. The program now works.

Many thanks.

Al Vinegar


----- Original Message ----- 
From: "Scott Storck" <address@hidden>
To: "Allen Vinegar" <address@hidden>
Sent: Monday, November 08, 2010 7:58 PM
Subject: Re: [Discuss-gnuradio] Dial tone under GNU Radio Companion fails


> I ran into the same problem, but I can't remember exactly how I solved
> it.  I think initially I was able to get it working using 48000 as the
> sample rate, so you might try that value.
>
>
> On 11/8/10, Allen Vinegar <address@hidden> wrote:
> > I tried changing the sampling rate to 44100 and tried using plughw and I 
> > get
> > the following results:
> >
> > The following is with plughw:
> >
> >
> >
> > audio_alsa_sink[plughw:0,0]: set_period_time_near failed: Invalid 
> > argument
> >
> > Traceback (most recent call last):
> >
> > File
> > "/home/al/gnuradio-uhd/gnuradio/gnuradio-examples/grc/audio/dial_tone.py",
> > line 120, in <module>
> >
> >
> >
> > tb = dial_tone()
> >
> > File
> > "/home/al/gnuradio-uhd/gnuradio/gnuradio-examples/grc/audio/dial_tone.py",
> > line 85, in __init__
> >
> > self.audio_sink = audio.sink(44100, "plughw:0,0", True)
> >
> > File "/usr/local/lib/python2.6/dist-packages/gnuradio/audio_alsa.py", 
> > line
> > 321, in sink
> >
> > return _audio_alsa.sink(*args, **kwargs)
> >
> > RuntimeError: audio_alsa_sink
> >
> >
> >
> > The following is without plugw:
> >
> >
> >
> > audio_alsa_sink[hw:0,0]: set_period_time_near failed: Invalid argument
> >
> > Traceback (most recent call last):
> >
> > File
> > "/home/al/gnuradio-uhd/gnuradio/gnuradio-examples/grc/audio/dial_tone.py",
> > line 120, in <module>
> >
> >
> >
> > tb = dial_tone()
> >
> > File
> > "/home/al/gnuradio-uhd/gnuradio/gnuradio-examples/grc/audio/dial_tone.py",
> > line 85, in __init__
> >
> > self.audio_sink = audio.sink(44100, "", True)
> >
> > File "/usr/local/lib/python2.6/dist-packages/gnuradio/audio_alsa.py", 
> > line
> > 321, in sink
> >
> > return _audio_alsa.sink(*args, **kwargs)
> >
> > RuntimeError: audio_alsa_sink
> >
> >
> >
> > What do I try next?
> >
> >
> >
> > Many thanks,
> >
> > Al Vinegar
> >
> >
> > ----- Original Message -----
> > From: "Marcus D. Leech" <address@hidden>
> > To: <address@hidden>
> > Sent: Sunday, November 07, 2010 10:15 PM
> > Subject: Re: [Discuss-gnuradio] Dial tone under GNU Radio Companion fails
> >
> >
> > > On 11/07/2010 10:02 PM, Josh Blum wrote:
> > > > So, from what I gather, you build and ran 3.2.2 and dial tone worked
> > > > fine. However, building and running dial done on the next branch gives
> > > > you the following error?
> > > >
> > > > > audio_alsa_sink[hw:0,0]: unable to support sampling rate 32000
> > > > >
> > > > > card requested 44100 instead.
> > > >
> > > > Maybe the underlying implementation of the alsa sink changed from
> > > > 3.2.2 to next? Anybody aware of this?
> > > >
> > > > Take a look at the docs in the Audio sink block, I think there is a
> > > > note to enable the resampler, or just pick a sample rate that your
> > > > sound card agrees with.
> > > >
> > > > -josh
> > > When I use alsa audio, I generally use the "plughw" device, which does
> > > resampling.
> > >
> > > This didn't work for a while on some Fedora distributions a couple of
> > > releases back, but I recall
> > > that a system update corrected it.
> > >
> > >
> > > > _______________________________________________
> > > > Discuss-gnuradio mailing list
> > > > address@hidden
> > > > http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
> > >
> > >
> > > --
> > > Principal Investigator
> > > Shirleys Bay Radio Astronomy Consortium
> > > http://www.sbrac.org
> > >
> > >
> > >
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> >
> >
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