Help using Respeaker 4-mic Array with Jasper

Martin Olsen

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Mar 16, 2018, 1:36:02 PM3/16/18

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Hello All

I hope someone can help me with this problem i am having launching jasper.

Instead of using the normal USB-microphone i am using an ReSpeaker 4-mic Array (https://www.seeedstudio.com/ReSpeaker-4-Mic-Array-for-Raspberry-Pi-p-2941.html), that got from a coworker.

I have tested the microphone and can record sound using the microphone and then playback the audio, so that part is working. However, whenever i launch jasper i get these following errors:

*******************************************************

* JASPER - THE TALKING COMPUTER *

*******************************************************

ALSA lib confmisc.c:767:(parse_card) cannot find card '0'

ALSA lib conf.c:4528:(_snd_config_evaluate) function snd_func_card_driver return ed error: No such file or directory

ALSA lib confmisc.c:392:(snd_func_concat) error evaluating strings

ALSA lib conf.c:4528:(_snd_config_evaluate) function snd_func_concat returned er ror: No such file or directory

ALSA lib confmisc.c:1246:(snd_func_refer) error evaluating name

ALSA lib conf.c:4528:(_snd_config_evaluate) function snd_func_refer returned err or: No such file or directory

ALSA lib conf.c:5007:(snd_config_expand) Evaluate error: No such file or directo ry

ALSA lib pcm.c:2495:(snd_pcm_open_noupdate) Unknown PCM sysdefault

ALSA lib confmisc.c:767:(parse_card) cannot find card '0'

ALSA lib conf.c:4528:(_snd_config_evaluate) function snd_func_card_driver return ed error: No such file or directory

ALSA lib confmisc.c:392:(snd_func_concat) error evaluating strings

ALSA lib conf.c:4528:(_snd_config_evaluate) function snd_func_concat returned er ror: No such file or directory

ALSA lib confmisc.c:1246:(snd_func_refer) error evaluating name

ALSA lib conf.c:4528:(_snd_config_evaluate) function snd_func_refer returned err or: No such file or directory

ALSA lib conf.c:5007:(snd_config_expand) Evaluate error: No such file or directo ry

ALSA lib pcm.c:2495:(snd_pcm_open_noupdate) Unknown PCM sysdefault

ALSA lib pcm.c:2495:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.front

ALSA lib pcm.c:2495:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.rear

ALSA lib pcm.c:2495:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.center_lfe

ALSA lib pcm.c:2495:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.side

ALSA lib pcm.c:2495:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.surround21

ALSA lib pcm.c:2495:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.surround40

ALSA lib pcm.c:2495:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.surround41

ALSA lib pcm.c:2495:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.surround50

ALSA lib pcm.c:2495:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.surround51

ALSA lib pcm.c:2495:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.surround71

ALSA lib pcm.c:2495:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.iec958

ALSA lib pcm.c:2495:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.hdmi

ALSA lib pcm.c:2495:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.modem

ALSA lib pcm.c:2495:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.phoneline

ALSA lib pcm_dmix.c:990:(snd_pcm_dmix_open) The dmix plugin supports only playba ck stream

ALSA lib pcm_dsnoop.c:556:(snd_pcm_dsnoop_open) The dsnoop plugin supports only capture stream

ALSA lib confmisc.c:767:(parse_card) cannot find card '0'

ALSA lib conf.c:4528:(_snd_config_evaluate) function snd_func_card_driver return ed error: No such file or directory

ALSA lib confmisc.c:392:(snd_func_concat) error evaluating strings

ALSA lib conf.c:4528:(_snd_config_evaluate) function snd_func_concat returned er ror: No such file or directory

ALSA lib confmisc.c:1246:(snd_func_refer) error evaluating name

ALSA lib conf.c:4528:(_snd_config_evaluate) function snd_func_refer returned err or: No such file or directory

ALSA lib conf.c:5007:(snd_config_expand) Evaluate error: No such file or directo ry

ALSA lib pcm.c:2495:(snd_pcm_open_noupdate) Unknown PCM dmix

Traceback (most recent call last):

File "/home/pi/jasper-client/jasper.py", line 151, in <module>

app.run()

File "/home/pi/jasper-client/jasper.py", line 121, in run

conversation.handleForever()

File "/home/pi/jasper-client/client/conversation.py", line 31, in handleForeve r

threshold, transcribed = self.mic.passiveListen(self.persona)

File "/home/pi/jasper-client/client/mic.py", line 121, in passiveListen

data = stream.read(CHUNK)

File "/usr/local/lib/python2.7/dist-packages/pyaudio.py", line 608, in read

return pa.read_stream(self._stream, num_frames, exception_on_overflow)

IOError: [Errno -9981] Input overflowed

It is because i cannot use a respeaker 4-mic array with jasper? Or what seems to be the issue? :

Michael E

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Mar 16, 2018, 6:09:51 PM3/16/18

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I think there is something wrong with your sound configuration

can you post the output from

aplay -l
arecord -l
cat /proc/asound/cards
cat /proc/asound/modules

please?

maybe i misstyped, so take a look at the path

Martin Olsen

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Mar 18, 2018, 2:40:54 PM3/18/18

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Sorry for late the reply, Michael.

Here it is, aplay -l:

**** List of PLAYBACK Hardware Devices ****

card 1: ALSA [bcm2835 ALSA], device 0: bcm2835 ALSA [bcm2835 ALSA]

Subdevices: 8/8

Subdevice #0: subdevice #0

Subdevice #1: subdevice #1

Subdevice #2: subdevice #2

Subdevice #3: subdevice #3

Subdevice #4: subdevice #4

Subdevice #5: subdevice #5

Subdevice #6: subdevice #6

Subdevice #7: subdevice #7

card 1: ALSA [bcm2835 ALSA], device 1: bcm2835 ALSA [bcm2835 IEC958/HDMI]

Subdevices: 1/1

Subdevice #0: subdevice #0

arecord -l:

**** List of CAPTURE Hardware Devices ****

card 2: seeed4micvoicec [seeed-4mic-voicecard], device 0: bcm2835-i2s-ac10x-codec0 ac10x-codec0-0 []

Subdevices: 1/1

Subdevice #0: subdevice #0

cat /proc/asound/cards

1 [ALSA ]: bcm2835 - bcm2835 ALSA

bcm2835 ALSA

2 [seeed4micvoicec]: seeed-4mic-voic - seeed-4mic-voicecard

seeed-4mic-voicecard

cat /proc/asound/modules

1 snd_bcm2835

2 snd_soc_simple_card

Thank you for looking into it, i've tried several different solutions found online, but couldnt get them to work.

Michael E

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Mar 18, 2018, 4:14:40 PM3/18/18

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Hey Martin

as you can see, card 0 is missing,

Maybe there are 2 solutions;

1. change the content of the /usr/share/alsa/alsa.conf at the right position, so that the 2 snd_soc_simple_card is assigned to 0. But I did not try it, so it is a maybe

2. in the tts.py change the line with

cmd = ['aplay', '-D', 'plughw:0,0', str(filename)]

to the right card:

cmd = ['aplay', '-D', 'plughw:2,0', str(filename)]

I hope this helps.

If somebody has better idea, please post it!

Michael

Martin Olsen

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Mar 18, 2018, 5:27:16 PM3/18/18

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The solution with changing the settings in the tts.py have helped to remove some of the errors. However, i am not sure if changed all the correct settings in the alsa.conf.

Here is what i get now:

ALSA lib pcm.c:2495:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.front

ALSA lib pcm.c:2495:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.rear

ALSA lib pcm.c:2495:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.center_lfe

ALSA lib pcm.c:2495:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.side

ALSA lib pcm.c:2495:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.surround21

ALSA lib pcm.c:2495:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.surround40

ALSA lib pcm.c:2495:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.surround41

ALSA lib pcm.c:2495:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.surround50

ALSA lib pcm.c:2495:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.surround51

ALSA lib pcm.c:2495:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.surround71

ALSA lib pcm.c:2495:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.iec958

ALSA lib pcm.c:2495:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.hdmi

ALSA lib pcm.c:2495:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.modem

ALSA lib pcm.c:2495:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.phoneline

ALSA lib pcm_dmix.c:990:(snd_pcm_dmix_open) The dmix plugin supports only playback stream

ALSA lib pcm_dsnoop.c:556:(snd_pcm_dsnoop_open) The dsnoop plugin supports only capture stream

ALSA lib pcm_dmix.c:1052:(snd_pcm_dmix_open) unable to open slave

Michael E

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Mar 20, 2018, 7:47:28 AM3/20/18

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Hello Martin,

it ssems, as if there mircophone is not assigned to the right port in alsa.conf

did you try different settings?

Michael

Martin Olsen

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Mar 20, 2018, 11:29:06 AM3/20/18

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Hey Micheal.

I'v tried to change some settings in alsa.conf, but i am rather new to RPIs and using the cmd prompt to edit.

Do you have any suggestions to what i need to change, because what i have changed, didnt really affect anything.

Thanks for all your help already mate!

Martin

achuj...@gmail.com

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May 5, 2018, 9:43:58 AM5/5/18

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hey

did you find a solution to it ?

I'm trying to make jasper work in rpi3 b+ (latest model 2018) with respeaker 2 mic

if you've found a proper solution to this problem , it'll be great if you could share it here

Lee Melbourne

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May 9, 2018, 8:01:31 PM5/9/18

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I dont fully understand how all the audio stuff works, but....

The Jasper code is set to use a specific chunk size (1024 I seem to recall). Perhaps this is not how the microphone is sampling sound and feeding back. If it is recording in large chunks then that would explain the "overflow" aspect of the error message. I would chase up Seeed for information on the detailed specs of the microphone and what sample rates it supports / works at.

G10DRAS

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Jun 9, 2018, 7:57:48 PM6/9/18

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Well if you see

https://github.com/respeaker/seeed-voicecard/blob/master/asound_4mic.conf

They are using their custom pcm ac108 for respeaker.

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