Hello-Lucy using Adafruit Voice Bonnet

sdetweil

@sinbad339 said in Hello-Lucy using Adafruit Voice Bonnet:

  microphone: "1,0",

so arecord says card 2,0

 arecord -l
**** List of CAPTURE Hardware Devices ****
card 2: seeed2micvoicec [seeed-2mic-voicecard], device 0: bcm2835-i2s-wm8960-hifi wm8960-hifi-0 [bcm2835-i2s-wm8960-hifi wm8960-hifi-0]
Subdevices: 1/1
Subdevice #0: subdevice #0

so it should be

 microphone: "2,0",

sinbad339

@sdetweil said in Hello-Lucy using Adafruit Voice Bonnet:

so it should be
microphone: “2,0”,

Thanks for replying. This config is what I had when I posted. As I mentioned, I’ve tried “0,0”, “1,0”, and “2,0”; all result in the microphone error.

sdetweil

@sinbad339 can u try this

arecord -D default -q  -r 16000 -c 1 -t wav -f S16_LE >test.wav

the replace default with

arecord -D hw:2,0  -q -r 16000 -c 1 -t wav -f S16_LE >test.wav

sinbad339

@sdetweil
With MM running, if I issue

arecord -D default -q  -r 16000 -c 1 -t wav -f S16_LE >test.wav

I get a good .wave file that I can play.
With MM still running, specifying the hw explicitly results in an error.

arecord -D hw:2,0  -q -r 16000 -c 1 -t wav -f S16_LE >test2.wav
arecord: main:830: audio open error: Device or resource busy
pi@Magic:~/MagicMirror/config $ arecord -l
**** List of CAPTURE Hardware Devices ****
card 2: seeed2micvoicec [seeed-2mic-voicecard], device 0: bcm2835-i2s-wm8960-hifi wm8960-hifi-0 [bcm2835-i2s-wm8960-hifi wm8960-hifi-0]
  Subdevices: 0/1
  Subdevice #0: subdevice #0

sdetweil

@sinbad339 said in Hello-Lucy using Adafruit Voice Bonnet:

With MM still running, specifying the hw explicitly results in an error.

ok, so MM is using that device

while mm is running do

ps -ef | grep arec

u should see the arecord process and the parms passed
from one of my apps that uses arecord

arecord -D default -q -r 16000 -c 1 -t wav -f S16_LE -

the trailing dash means stream content to stdout (which is captured by the upstream library)

sdetweil

@sinbad339

arecord -D default

the question is, what is ‘default’

sinbad339

@sdetweil
So the arecord -l lists card2 as my expected capture device (seeed-2mic-voicecard). I find it interesting that it enumverates as #2 with no #0 or #1.

Anyway, I ran your ps command; not sure what this output means (as I’m sure you’re aware by now, I’m a Noob on Linux).

ps -ef | grep arec
pi        1953  1927  0 11:04 pts/0    00:00:00 grep --color=auto arec

sdetweil

@sinbad339 hm…

should have used arecord…

try

ps -ef | grep rec

(there are only 2 apps… arecord or rec )

the output from ps

pi        1953  1927  0 11:04 pts/0    00:00:00 grep --color=auto arec

user that started process
the process id
the parent process id +
(i don’t know, 0)
the time the process was started
(i don’t know, pts/ )
how much cpu time has been used since started, in seconds
the string used to start the process, pgm name and then parms

sinbad339

@sdetweil

ps -ef | grep rec
root        76     2  0 11:02 ?        00:00:00 [vchiq-recy/0]
pi        2320  1927  0 11:24 pts/0    00:00:00 grep --color=auto rec

Not sure what vchiq-recy is…
But no arec or arecord.

sdetweil

@sinbad339 said in Hello-Lucy using Adafruit Voice Bonnet:

But no arec or arecord.

well, that explains the error…

you did run the installation dependencies script, right?

cd Hello-Lucy/installers
bash dependencies.sh