Problems under ubuntu

[vgezer]

I think everything is normal until this:

volkan@ubuntu:~/Belgeler/quietnet$ python send.py ALSA lib pcm_dsnoop.c:618:(snd_pcm_dsnoop_open) unable to open slave ALSA lib pcm.c:2239:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.rear ALSA lib pcm.c:2239:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.center_lfe ALSA lib pcm.c:2239:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.side bt_audio_service_open: connect() failed: Connection refused (111) bt_audio_service_open: connect() failed: Connection refused (111) bt_audio_service_open: connect() failed: Connection refused (111) bt_audio_service_open: connect() failed: Connection refused (111) ALSA lib pcm_dmix.c:961:(snd_pcm_dmix_open) The dmix plugin supports only playback stream 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 Welcome to quietnet. Use ctrl-c to exit

But when I send something, i receive the following:

ALSA lib pcm.c:7843:(snd_pcm_recover) underrun occurred

As a result, nothing comes in listening part. What can be the problem?

[lance0]

Curious if pulseaudio works on your pc and if it makes a difference.

[vgezer]

volkan@ubuntu:~/Belgeler/quietnet$ pulseaudio E: [pulseaudio] pid.c: Daemon already running.

I think yes :/

[Katee]

@wakeup did you install pyaudio using apt-get or from the pyaudio site?

[Katee]

Give these instructions a try, if they work I'll add that as a note in the readme.

[vgezer]

I installed using apt-get and tried your instructions, but unfortunately it is the same issue.

[alouche]

ALSA lib pcm.c:7843:(snd_pcm_recover) underrun occurred

The underun is likely caused because pulseaudio is already accessing the card - you can pause it using http://linux.die.net/man/1/pasuspender. In general to avoid such deadlock, you need a soundserver like jackd https://help.ubuntu.com/community/What%20is%20JACK, but you already figured this out from the following log entries in your trace ;-) (apt-get install jackd)

ALSA lib pcm_dsnoop.c:618:(snd_pcm_dsnoop_open) unable to open slave"

You need to change "pcm.front cards.pcm.front" to "pcm.front cards.pcm.default" in /usr/share/alsa/alsa.conf.

The rest of the errors are not meaningful, for instance, "bt_audio_service_open: connect() failed: Connection refused (111)" refers to your bluetooth device - you are likely missing some bluethooth packages, but you can simply ignore it.

This should get you moving forward and debug further.

[manjurajv]

@Katee Nice work :+1:

@alouche ,

Thanks for your suggestion. :+1:

I started jackd(via qjackctl) which when started suspends pulseaudio (pasuspender -- /usr/bin/jackd).

But I get the following errors.

$:quietnet (master)$ python send.py ALSA lib pcm_dsnoop.c:612:(snd_pcm_dsnoop_open) unable to open slave ALSA lib pcm_dmix.c:1018:(snd_pcm_dmix_open) unable to open slave ALSA lib pcm_dmix.c:1018:(snd_pcm_dmix_open) unable to open slave ALSA lib pcm.c:2217:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.rear ALSA lib pcm.c:2217:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.center_lfe ALSA lib pcm.c:2217:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.side ALSA lib audio/pcm_bluetooth.c:1614:(audioservice_expect) BT_GET_CAPABILITIES failed : Input/output error(5) ALSA lib audio/pcm_bluetooth.c:1614:(audioservice_expect) BT_GET_CAPABILITIES failed : Input/output error(5) ALSA lib audio/pcm_bluetooth.c:1614:(audioservice_expect) BT_GET_CAPABILITIES failed : Input/output error(5) ALSA lib audio/pcm_bluetooth.c:1614:(audioservice_expect) BT_GET_CAPABILITIES failed : Input/output error(5) ALSA lib pcm_dmix.c:957:(snd_pcm_dmix_open) The dmix plugin supports only playback stream ALSA lib pcm_dmix.c:1018:(snd_pcm_dmix_open) unable to open slave Cannot lock down 82246176 byte memory area (Cannot allocate memory) Welcome to quietnet. Use ctrl-c to exit

whereas If I stop jackd(via qjackctl) it throws this error

quietnet (master)$ python send.py ALSA lib pcm.c:2217:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.rear ALSA lib pcm.c:2217:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.center_lfe ALSA lib pcm.c:2217:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.side ALSA lib audio/pcm_bluetooth.c:1614:(audioservice_expect) BT_GET_CAPABILITIES failed : Input/output error(5) ALSA lib audio/pcm_bluetooth.c:1614:(audioservice_expect) BT_GET_CAPABILITIES failed : Input/output error(5) ALSA lib audio/pcm_bluetooth.c:1614:(audioservice_expect) BT_GET_CAPABILITIES failed : Input/output error(5) ALSA lib audio/pcm_bluetooth.c:1614:(audioservice_expect) BT_GET_CAPABILITIES failed : Input/output error(5) ALSA lib pcm_dmix.c:957:(snd_pcm_dmix_open) The dmix plugin supports only playback stream Cannot connect to server socket err = No such file or directory Cannot connect to server socket jack server is not running or cannot be started Welcome to quietnet. Use ctrl-c to exit

Any pointers would be of good help.

My System Info

quietnet (master)$ uname -a Linux manjurajv 3.2.0-58-generic #88-Ubuntu SMP Tue Dec 3 17:37:58 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux

quietnet (master)$ aplay -l **** List of PLAYBACK Hardware Devices **** card 0: PCH [HDA Intel PCH], device 0: ALC269VC Analog [ALC269VC Analog] Subdevices: 0/1 Subdevice #0: subdevice #0 card 0: PCH [HDA Intel PCH], device 3: HDMI 0 [HDMI 0] Subdevices: 1/1 Subdevice #0: subdevice #0

**** List of CAPTURE Hardware Devices **** card 0: PCH [HDA Intel PCH], device 0: ALC269VC Analog [ALC269VC Analog] Subdevices: 0/1 Subdevice #0: subdevice #0

quietnet (master)$ aplay -L null Discard all samples (playback) or generate zero samples (capture) pulse PulseAudio Sound Server default Playback/recording through the PulseAudio sound server sysdefault:CARD=PCH HDA Intel PCH, ALC269VC Analog Default Audio Device front:CARD=PCH HDA Intel PCH, ALC269VC Analog Default Audio Device ....

quietnet (master)$ arecord -L null Discard all samples (playback) or generate zero samples (capture) pulse PulseAudio Sound Server default Playback/recording through the PulseAudio sound server sysdefault:CARD=PCH HDA Intel PCH, ALC269VC Analog Default Audio Device front:CARD=PCH HDA Intel PCH, ALC269VC Analog Default Audio Device

[alouche]

You need to make sure real time and memory lock are enabled for jackd

dpkg-reconfigure -p high jackd

Then make sure your username is added to the group "audio".

ulimit -l -r

should display

max locked memory (kbytes, -l) unlimited real-time priority (-r) 95

[alis0nc]

I have Ubuntu 12.04.3 and I started jackd by qjackctl. (note, the package to reconfigure on Ubuntu 12.04 is jackd2, not jackd)

[16:08:37] erinacity:~
alisonc $ python --version
Python 2.7.3
[16:09:20] erinacity:~/Code/quietnet
alisonc $ aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: PCH [HDA Intel PCH], device 0: ALC269VB Analog [ALC269VB Analog]
  Subdevices: 0/1
  Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 3: HDMI 0 [HDMI 0]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
[16:09:23] erinacity:~/Code/quietnet
alisonc $ arecord -l
**** List of CAPTURE Hardware Devices ****
card 0: PCH [HDA Intel PCH], device 0: ALC269VB Analog [ALC269VB Analog]
  Subdevices: 0/1
  Subdevice #0: subdevice #0
[16:09:40] erinacity:~/Code/quietnet
alisonc $ uname -a
Linux erinacity 3.8.0-35-generic #50~precise1-Ubuntu SMP Wed Dec 4 17:25:51 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux
[16:09:43] erinacity:~/Code/quietnet
alisonc $ ulimit -l -r
max locked memory       (kbytes, -l) unlimited
real-time priority              (-r) 95
[16:10:31] erinacity:~/Code/quietnet
alisonc $ 

listen.py:

[16:12:49] erinacity:~/Code/quietnet
alisonc $ python listen.py
Quietnet listening at 19100HzALSA lib pcm_dsnoop.c:612:(snd_pcm_dsnoop_open) unable to open slave
ALSA lib pcm_dmix.c:1018:(snd_pcm_dmix_open) unable to open slave
ALSA lib pcm.c:2217:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.rear
ALSA lib pcm.c:2217:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.center_lfe
ALSA lib pcm.c:2217:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.side
ALSA lib audio/pcm_bluetooth.c:1614:(audioservice_expect) BT_GET_CAPABILITIES failed : Input/output error(5)
ALSA lib audio/pcm_bluetooth.c:1614:(audioservice_expect) BT_GET_CAPABILITIES failed : Input/output error(5)
ALSA lib audio/pcm_bluetooth.c:1614:(audioservice_expect) BT_GET_CAPABILITIES failed : Input/output error(5)
ALSA lib audio/pcm_bluetooth.c:1614:(audioservice_expect) BT_GET_CAPABILITIES failed : Input/output error(5)
ALSA lib pcm_dmix.c:957:(snd_pcm_dmix_open) The dmix plugin supports only playback stream
ALSA lib pcm_dmix.c:1018:(snd_pcm_dmix_open) unable to open slave

send.py:

[16:12:36] erinacity:~/Code/quietnet
alisonc $ python send.py
ALSA lib pcm_dsnoop.c:612:(snd_pcm_dsnoop_open) unable to open slave
ALSA lib pcm_dmix.c:1018:(snd_pcm_dmix_open) unable to open slave
ALSA lib pcm.c:2217:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.rear
ALSA lib pcm.c:2217:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.center_lfe
ALSA lib pcm.c:2217:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.side
ALSA lib audio/pcm_bluetooth.c:1614:(audioservice_expect) BT_GET_CAPABILITIES failed : Input/output error(5)
ALSA lib audio/pcm_bluetooth.c:1614:(audioservice_expect) BT_GET_CAPABILITIES failed : Input/output error(5)
ALSA lib audio/pcm_bluetooth.c:1614:(audioservice_expect) BT_GET_CAPABILITIES failed : Input/output error(5)
ALSA lib audio/pcm_bluetooth.c:1614:(audioservice_expect) BT_GET_CAPABILITIES failed : Input/output error(5)
ALSA lib pcm_dmix.c:957:(snd_pcm_dmix_open) The dmix plugin supports only playback stream
ALSA lib pcm_dmix.c:1018:(snd_pcm_dmix_open) unable to open slave
Welcome to quietnet. Use ctrl-c to exit
> testing

at this point send.py hangs irresponsible to sigint, and i have to sigkill it.

without using jackd:

[16:15:37] erinacity:~/Code/quietnet
alisonc $ python listen.py
Quietnet listening at 19100HzALSA lib pcm.c:2217:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.rear
ALSA lib pcm.c:2217:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.center_lfe
ALSA lib pcm.c:2217:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.side
ALSA lib audio/pcm_bluetooth.c:1614:(audioservice_expect) BT_GET_CAPABILITIES failed : Input/output error(5)
ALSA lib audio/pcm_bluetooth.c:1614:(audioservice_expect) BT_GET_CAPABILITIES failed : Input/output error(5)
ALSA lib audio/pcm_bluetooth.c:1614:(audioservice_expect) BT_GET_CAPABILITIES failed : Input/output error(5)
ALSA lib audio/pcm_bluetooth.c:1614:(audioservice_expect) BT_GET_CAPABILITIES failed : Input/output error(5)
ALSA lib pcm_dmix.c:957:(snd_pcm_dmix_open) The dmix plugin supports only playback stream
Cannot connect to server socket err = No such file or directory
Cannot connect to server socket
jack server is not running or cannot be started

[16:14:52] erinacity:~/Code/quietnet
alisonc $ python send.py
ALSA lib pcm.c:2217:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.rear
ALSA lib pcm.c:2217:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.center_lfe
ALSA lib pcm.c:2217:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.side
ALSA lib audio/pcm_bluetooth.c:1614:(audioservice_expect) BT_GET_CAPABILITIES failed : Input/output error(5)
ALSA lib audio/pcm_bluetooth.c:1614:(audioservice_expect) BT_GET_CAPABILITIES failed : Input/output error(5)
ALSA lib audio/pcm_bluetooth.c:1614:(audioservice_expect) BT_GET_CAPABILITIES failed : Input/output error(5)
ALSA lib audio/pcm_bluetooth.c:1614:(audioservice_expect) BT_GET_CAPABILITIES failed : Input/output error(5)
ALSA lib pcm_dmix.c:957:(snd_pcm_dmix_open) The dmix plugin supports only playback stream
Cannot connect to server socket err = No such file or directory
Cannot connect to server socket
jack server is not running or cannot be started
Welcome to quietnet. Use ctrl-c to exit
> testing

at this point send.py also becomes irresponsible to sigint.

[alis0nc]

... It works now, after I put my laptop to standby and woke it up again.

[xeffect]

Even if I try to change the priority to the real-time for some reason I always see it to be 0 and not 95

quietnet# dpkg-reconfigure -p high jackd2 quietnet# ulimit -l -r max locked memory (kbytes, -l) 64 real-time priority (-r) 0

and so do I get the following error

#python listen.py

Quietnet listening at 19100HzALSA lib pcm.c:2217:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.rear ALSA lib pcm.c:2217:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.center_lfe ALSA lib pcm.c:2217:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.side ALSA lib audio/pcm_bluetooth.c:1614:(audioservice_expect) BT_GET_CAPABILITIES failed : Input/output error(5) ALSA lib audio/pcm_bluetooth.c:1614:(audioservice_expect) BT_GET_CAPABILITIES failed : Input/output error(5) ALSA lib audio/pcm_bluetooth.c:1614:(audioservice_expect) BT_GET_CAPABILITIES failed : Input/output error(5) ALSA lib audio/pcm_bluetooth.c:1614:(audioservice_expect) BT_GET_CAPABILITIES failed : Input/output error(5) ALSA lib pcm_dmix.c:957:(snd_pcm_dmix_open) The dmix plugin supports only playback stream Cannot connect to server socket err = No such file or directory Cannot connect to server socket jack server is not running or cannot be started Traceback (most recent call last): File "listen.py", line 128, in start_analysing_stream() File "listen.py", line 121, in start_analysing_stream input=True, frames_per_buffer=frames_per_buffer, stream_callback=callback) File "/usr/lib/pymodules/python2.7/pyaudio.py", line 714, in open stream = Stream(self, _args, *_kwargs) TypeError: init() got an unexpected keyword argument 'stream_callback'

quietnet# python send.py ALSA lib pcm.c:2217:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.rear ALSA lib pcm.c:2217:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.center_lfe ALSA lib pcm.c:2217:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.side ALSA lib audio/pcm_bluetooth.c:1614:(audioservice_expect) BT_GET_CAPABILITIES failed : Input/output error(5) ALSA lib audio/pcm_bluetooth.c:1614:(audioservice_expect) BT_GET_CAPABILITIES failed : Input/output error(5) ALSA lib audio/pcm_bluetooth.c:1614:(audioservice_expect) BT_GET_CAPABILITIES failed : Input/output error(5) ALSA lib audio/pcm_bluetooth.c:1614:(audioservice_expect) BT_GET_CAPABILITIES failed : Input/output error(5) ALSA lib pcm_dmix.c:957:(snd_pcm_dmix_open) The dmix plugin supports only playback stream Cannot connect to server socket err = No such file or directory Cannot connect to server socket jack server is not running or cannot be started Welcome to quietnet. Use ctrl-c to exit

[int-ua]

Kubuntu 14.10x64:

$ python send.py          
ALSA lib pcm.c:2239:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.rear
ALSA lib pcm.c:2239:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.center_lfe
ALSA lib pcm.c:2239:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.side
ALSA lib pcm_route.c:947:(find_matching_chmap) Found no matching channel map
ALSA lib pcm_route.c:947:(find_matching_chmap) Found no matching channel map
bt_audio_service_open: connect() failed: Connection refused (111)
bt_audio_service_open: connect() failed: Connection refused (111)
bt_audio_service_open: connect() failed: Connection refused (111)
bt_audio_service_open: connect() failed: Connection refused (111)
Welcome to quietnet. Use ctrl-c to exit
>

[vishnudas-raveendran]

Is there a way to hide these messages??

[manaskarekar]

@xeffect : Did you figure out what was going on as far as the priorities are concerned?

I'm having trouble running the example script from PyAudio Website (Wire (Callback)).

[smilelhh]

use following tips for solve bt_audio_service_open: connect() failed: Connection refused (111)

1.sudo apt-get install jackd1
2.sudo apt-get purge bluez-alsa

after that,it still have follow errors, but it doesn't matter. I can listen and say, but i still want to solve it, hope you help me!

ALSA lib pcm_dsnoop.c:618:(snd_pcm_dsnoop_open) unable to open slave
ALSA lib pcm_dmix.c:1022:(snd_pcm_dmix_open) unable to open slave
ALSA lib pcm.c:2239:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.rear
ALSA lib pcm.c:2239:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.center_lfe
ALSA lib pcm.c:2239:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.side
ALSA lib pcm_dmix.c:1022:(snd_pcm_dmix_open) unable to open slave

thank you for you tips again.

[nageshd88]

code--- import speech_recognition as sr

r = sr.Recognizer() with sr.Microphone() as source:
audio = r.listen(source)

try: print("You said " + r.recognize(audio))
print("Could not understand audio")

output: ALSA lib pcm_dsnoop.c:612:(snd_pcm_dsnoop_open) unable to open slave ALSA lib pcm.c:2217:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.rear ALSA lib pcm.c:2217:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.center_lfe ALSA lib pcm.c:2217:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.side ALSA lib pcm_dmix.c:957:(snd_pcm_dmix_open) The dmix plugin supports only playback stream Traceback (most recent call last): File "ll.py", line 9, in print("You said " + r.recognize(audio)) # recognize speech using Google Speech Recognition AttributeError: 'Recognizer' object has no attribute 'recognize'

[theja0473]

I am getting error at

root@xion:/home/xion/pyaudio# python microphone_recognition.py ALSA lib pcm_dsnoop.c:618:(snd_pcm_dsnoop_open) unable to open slave ALSA lib pcm_dmix.c:1022:(snd_pcm_dmix_open) unable to open slave ALSA lib pcm.c:2239:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.rear ALSA lib pcm.c:2239:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.center_lfe ALSA lib pcm.c:2239:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.side bt_audio_service_open: connect() failed: Connection refused (111) bt_audio_service_open: connect() failed: Connection refused (111) bt_audio_service_open: connect() failed: Connection refused (111) bt_audio_service_open: connect() failed: Connection refused (111) ALSA lib pcm_dmix.c:1022:(snd_pcm_dmix_open) unable to open slave Say something!

[fenderrex]

this started when i crashed the program myself... some soc file is locked it looks like dont know were to look

[credi-himanshu]

Did someone find an answer to it. ALSA lib pcm_dsnoop.c:618:(snd_pcm_dsnoop_open) unable to open slave ALSA lib pcm_dmix.c:1022:(snd_pcm_dmix_open) unable to open slave ALSA lib pcm.c:2239:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.rear ALSA lib pcm.c:2239:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.center_lfe ALSA lib pcm.c:2239:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.side ALSA lib pcm_dmix.c:1022:(snd_pcm_dmix_open) unable to open slave``

[fwaechter]

Maybe this could help (don't forget to reboot and kill pulse as mentioned): https://github.com/Uberi/speech_recognition#user-content-on-ubuntudebian-i-get-errors-like-jack-server-is-not-running-or-cannot-be-started-or-cannot-lock-down--byte-memory-area-cannot-allocate-memory

[priyashkla]

You need to make sure real time and memory lock are enabled for jackd

dpkg-reconfigure -p high jackd

Then make sure your username is added to the group "audio".

ulimit -l -r

should display

max locked memory (kbytes, -l) unlimited real-time priority (-r) 95 Mine is showing in ubuntu 16.04 baxter@baxter:/usr/share/alsa$ cd baxter@baxter:~$ dpkg-reconfigure -p high jackd /usr/sbin/dpkg-reconfigure must be run as root baxter@baxter:~$ ulimit -l -r max locked memory (kbytes, -l) 64 real-time priority (-r) 0 baxter@baxter:~$

will u please help i also changed "pcm.front cards.pcm.front" to "pcm.front cards.pcm.default" in /usr/share/alsa/alsa.conf.