I have sound on my ubuntu20, I can play any audio; but the problem is when I'm using speech recognition, alsa doesn't work properly. I used speech recognition in windows, it was pain, but it worked. I have installed pyaudio,... so yeah it's not library problem.
I have done:
1.Reinstalling alsa and pulseAudio.
2.Checking which program is using sound card.
3.Trying to specific device to be used in Microphone().
When i use: python -c "import pyaudio;audio=pyaudio.PyAudio();print([audio.get_device_info_by_index(i) for i in range(audio.get_device_count())])"
returns:
ALSA lib pcm_dsnoop.c:604:(snd_pcm_dsnoop_open) unable to create IPC semaphore
ALSA lib pcm.c:2642:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.rear
ALSA lib pcm.c:2642:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.center_lfe
ALSA lib pcm.c:2642:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.side
ALSA lib pcm_route.c:869:(find_matching_chmap) Found no matching channel map
ALSA lib pcm_route.c:869:(find_matching_chmap) Found no matching channel map
ALSA lib pcm_route.c:869:(find_matching_chmap) Found no matching channel map
ALSA lib pcm_route.c:869:(find_matching_chmap) Found no matching channel map
ALSA lib pcm_oss.c:377:(_snd_pcm_oss_open) Unknown field port
ALSA lib pcm_oss.c:377:(_snd_pcm_oss_open) Unknown field port
ALSA lib pulse.c:242:(pulse_connect) PulseAudio: Unable to connect: Connection refused
ALSA lib pulse.c:242:(pulse_connect) PulseAudio: Unable to connect: Connection refused
ALSA lib pcm_usb_stream.c:486:(_snd_pcm_usb_stream_open) Invalid type for card
ALSA lib pcm_usb_stream.c:486:(_snd_pcm_usb_stream_open) Invalid type for card
ALSA lib pcm_dsnoop.c:604:(snd_pcm_dsnoop_open) unable to create IPC semaphore
[{'defaultSampleRate': 44100.0, 'defaultLowOutputLatency': 0.005804988662131519,
'defaultLowInputLatency': 0.005804988662131519, 'maxInputChannels': 2L, 'structVersion': 2L,
'hostApi': 0L, 'index': 0, 'defaultHighOutputLatency': 0.034829931972789115,
'maxOutputChannels': 2L, 'name': u'HDA Intel PCH: ALC3246 Analog (hw:0,0)',
'defaultHighInputLatency': 0.034829931972789115}, {'defaultSampleRate': 44100.0,
'defaultLowOutputLatency': 0.005804988662131519, 'defaultLowInputLatency': -1.0,
'maxInputChannels': 0L, 'structVersion': 2L, 'hostApi': 0L, 'index': 1,
'defaultHighOutputLatency': 0.034829931972789115, 'maxOutputChannels': 8L, 'name': u'HDA Intel
PCH: HDMI 0 (hw:0,3)', 'defaultHighInputLatency': -1.0}, {'defaultSampleRate': 44100.0,
'defaultLowOutputLatency': 0.005804988662131519, 'defaultLowInputLatency': -1.0,
'maxInputChannels': 0L, 'structVersion': 2L, 'hostApi': 0L, 'index': 2,
'defaultHighOutputLatency': 0.034829931972789115, 'maxOutputChannels': 8L, 'name': u'HDA Intel
PCH: HDMI 1 (hw:0,7)', 'defaultHighInputLatency': -1.0}, {'defaultSampleRate': 44100.0,
'defaultLowOutputLatency': 0.005804988662131519, 'defaultLowInputLatency': -1.0,
'maxInputChannels': 0L, 'structVersion': 2L, 'hostApi': 0L, 'index': 3,
'defaultHighOutputLatency': 0.034829931972789115, 'maxOutputChannels': 8L, 'name': u'HDA Intel
PCH: HDMI 2 (hw:0,8)', 'defaultHighInputLatency': -1.0}, {'defaultSampleRate': 44100.0,
'defaultLowOutputLatency': 0.005804988662131519, 'defaultLowInputLatency': -1.0,
'maxInputChannels': 0L, 'structVersion': 2L, 'hostApi': 0L, 'index': 4,
'defaultHighOutputLatency': 0.034829931972789115, 'maxOutputChannels': 8L, 'name': u'HDA Intel
PCH: HDMI 3 (hw:0,9)', 'defaultHighInputLatency': -1.0}, {'defaultSampleRate': 44100.0,
'defaultLowOutputLatency': 0.005804988662131519, 'defaultLowInputLatency': -1.0,
'maxInputChannels': 0L, 'structVersion': 2L, 'hostApi': 0L, 'index': 5,
'defaultHighOutputLatency': 0.034829931972789115, 'maxOutputChannels': 8L, 'name': u'HDA Intel
PCH: HDMI 4 (hw:0,10)', 'defaultHighInputLatency': -1.0}, {'defaultSampleRate': 48000.0,
'defaultLowOutputLatency': 0.021333333333333333, 'defaultLowInputLatency': -1.0,
'maxInputChannels': 0L, 'structVersion': 2L, 'hostApi': 0L, 'index': 6,
'defaultHighOutputLatency': 0.021333333333333333, 'maxOutputChannels': 128L, 'name':
u'sysdefault', 'defaultHighInputLatency': -1.0}, {'defaultSampleRate': 44100.0,
'defaultLowOutputLatency': 0.005804988662131519, 'defaultLowInputLatency': -1.0,
'maxInputChannels': 0L, 'structVersion': 2L, 'hostApi': 0L, 'index': 7,
'defaultHighOutputLatency': 0.034829931972789115, 'maxOutputChannels': 2L, 'name':
u'front', 'defaultHighInputLatency': -1.0}, {'defaultSampleRate': 44100.0,
'defaultLowOutputLatency': 0.005804988662131519, 'defaultLowInputLatency': -1.0,
'maxInputChannels': 0L, 'structVersion': 2L, 'hostApi': 0L, 'index': 8,
'defaultHighOutputLatency': 0.034829931972789115, 'maxOutputChannels': 2L, 'name':
u'surround40', 'defaultHighInputLatency': -1.0}, {'defaultSampleRate': 44100.0,
'defaultLowOutputLatency': 0.005804988662131519, 'defaultLowInputLatency': -1.0,
'maxInputChannels': 0L, 'structVersion': 2L, 'hostApi': 0L, 'index': 9,
'defaultHighOutputLatency': 0.034829931972789115, 'maxOutputChannels': 2L, 'name':
u'surround51', 'defaultHighInputLatency': -1.0}, {'defaultSampleRate': 44100.0,
'defaultLowOutputLatency': 0.005804988662131519, 'defaultLowInputLatency': -1.0,
'maxInputChannels': 0L, 'structVersion': 2L, 'hostApi': 0L, 'index': 10,
'defaultHighOutputLatency': 0.034829931972789115, 'maxOutputChannels': 2L, 'name':
u'surround71', 'defaultHighInputLatency': -1.0}, {'defaultSampleRate': 44100.0,
'defaultLowOutputLatency': 0.005804988662131519, 'defaultLowInputLatency': -1.0,
'maxInputChannels': 0L, 'structVersion': 2L, 'hostApi': 0L, 'index': 11,
'defaultHighOutputLatency': 0.034829931972789115, 'maxOutputChannels': 8L, 'name':
u'hdmi', 'defaultHighInputLatency': -1.0}, {'defaultSampleRate': 44100.0,
'defaultLowOutputLatency': 0.007755102040816327, 'defaultLowInputLatency':
0.007755102040816327, 'maxInputChannels': 128L, 'structVersion': 2L, 'hostApi': 0L,
'index': 12, 'defaultHighOutputLatency': 0.023219954648526078, 'maxOutputChannels': 128L,
'name': u'samplerate', 'defaultHighInputLatency': 0.023219954648526078},
{'defaultSampleRate': 44100.0, 'defaultLowOutputLatency': 0.007755102040816327,
'defaultLowInputLatency': 0.007755102040816327, 'maxInputChannels': 128L, 'structVersion':
2L, 'hostApi': 0L, 'index': 13, 'defaultHighOutputLatency': 0.023219954648526078,
'maxOutputChannels': 128L, 'name': u'speexrate', 'defaultHighInputLatency':
0.023219954648526078}, {'defaultSampleRate': 44100.0, 'defaultLowOutputLatency':
0.005804988662131519, 'defaultLowInputLatency': 0.005804988662131519, 'maxInputChannels':
8L, 'structVersion': 2L, 'hostApi': 0L, 'index': 14, 'defaultHighOutputLatency':
0.034829931972789115, 'maxOutputChannels': 8L, 'name': u'upmix',
'defaultHighInputLatency': 0.034829931972789115}, {'defaultSampleRate': 44100.0,
'defaultLowOutputLatency': 0.005804988662131519, 'defaultLowInputLatency':
0.005804988662131519, 'maxInputChannels': 6L, 'structVersion': 2L, 'hostApi': 0L, 'index':
15, 'defaultHighOutputLatency': 0.034829931972789115, 'maxOutputChannels': 6L, 'name':
u'vdownmix', 'defaultHighInputLatency': 0.034829931972789115}, {'defaultSampleRate':
48000.0, 'defaultLowOutputLatency': 0.021333333333333333, 'defaultLowInputLatency': -1.0,
'maxInputChannels': 0L, 'structVersion': 2L, 'hostApi': 0L, 'index': 16,
'defaultHighOutputLatency': 0.021333333333333333, 'maxOutputChannels': 128L, 'name':
u'default', 'defaultHighInputLatency': -1.0}, {'defaultSampleRate': 48000.0,
'defaultLowOutputLatency': 0.021333333333333333, 'defaultLowInputLatency': -1.0,
'maxInputChannels': 0L, 'structVersion': 2L, 'hostApi': 0L, 'index': 17, '
defaultHighOutputLatency': 0.021333333333333333, 'maxOutputChannels': 2L, 'name': u'dmix',
'defaultHighInputLatency': -1.0}]
Error:
ALSA lib pcm_dsnoop.c:604:(snd_pcm_dsnoop_open) unable to create IPC semaphore
ALSA lib pcm.c:2642:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.rear
ALSA lib pcm.c:2642:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.center_lfe
ALSA lib pcm.c:2642:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.side
ALSA lib pcm_route.c:869:(find_matching_chmap) Found no matching channel map
ALSA lib pcm_route.c:869:(find_matching_chmap) Found no matching channel map
ALSA lib pcm_route.c:869:(find_matching_chmap) Found no matching channel map
ALSA lib pcm_route.c:869:(find_matching_chmap) Found no matching channel map
ALSA lib pcm_oss.c:377:(_snd_pcm_oss_open) Unknown field port
ALSA lib pcm_oss.c:377:(_snd_pcm_oss_open) Unknown field port
ALSA lib pulse.c:242:(pulse_connect) PulseAudio: Unable to connect: Connection refused
I'm using VS code and it's probably bug.The question is how can I get rid of it?
Hey guys i fixed that by installing voice control using sudo apt-get install pavucontrol.Run it by using pavucontrol in therminal.In voice control put recording device to 0.My laptop had built in mic and alsa know find it.