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I'm having trouble getting pyaudio working on an Ubuntu machine (trusty). Trying to use the blocking wave-player code on the pyaudio documentation page I get:

Cannot connect to server socket err = No such file or directory
Cannot connect to server request channel
jack server is not running or cannot be started
Traceback (most recent call last):
 File "./pyaudio-play.py", line 22, in <module>
   output=True)
 File "/usr/lib/python2.7/dist-packages/pyaudio.py", line 747, in open
   stream = Stream(self, *args, **kwargs)
 File "/usr/lib/python2.7/dist-packages/pyaudio.py", line 442, in __init__
   self._stream = pa.open(**arguments)
IOError: [Errno Invalid output device (no default output device)] -9996

Like this post, I have no devices available, but I'm not using enthought as far as I know. Typing pyaudio.pa.__file__ returns

'/usr/lib/python2.7/dist-packages/_portaudio.so'

And I just installed libportaudio-dev and libportaudio0 via apt-get.

For what it's worth, arecord and aplay don't pick up devices either:

aplay -l
aplay: device_list:268: no soundcards found...

But they both seem to work anyway (i.e. the one records and the other plays).

I DO have devices registering

$ cat /proc/asound/cards 

 0 [PCH            ]: HDA-Intel - HDA Intel
PCH
                      HDA Intel PCH at 0xf9120000 irq 81  1 [NVidia         ]: HDA-Intel - HDA NVidia
                      HDA NVidia at 0xfb080000 irq 36  2 [Mic            ]: USB-Audio - Samson Meteor Mic
                      Samson Technologies Samson Meteor Mic at usb-0000:00:1d.0-1.1, full speed  3 [NVidia_1       ]: HDA-Intel - HDA
NVidia
                      HDA NVidia at 0xf9080000 irq 44

(Sorry about the newlines not working correctly in this post)

Any ideas?

k.biao
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jdbrody
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  • I installed portaudio-dev19 and that seemed to work but when I logged back in I was back to the same problem. Strange. – jdbrody Oct 19 '15 at 09:52

1 Answers1

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Had to install portaudio19-dev. This seemed to work for a minute then it broke again.

It looks like the sounds system got mucked up though; restarting a bunch of stuff (alsa, pulseaudio) seems to have fixed it, at least for now.

jdbrody
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