Matrix Creator MIC not working with 1.7 AVS-SDK

#1

Hi

I have been trying to make the mic work for AVS-SDK 1.7.
The script run fine and I get
########################################
# Alexa is currently idle! #
########################################
tried to enter “t” to bypass sensory but still no response

I believe avs is not picking up the Matrix Creator’s mic

I have successfully insalled latest matrixio-kernal-modules

My arecord -l looks like

**** List of CAPTURE Hardware Devices ****
card 1: Dummy [Dummy], device 0: Dummy PCM [Dummy PCM]
  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 2: SOUND [MATRIXIO SOUND], device 0: matrixio.mic.0 snd-soc-dummy-dai-0 []
  Subdevices: 1/1
  Subdevice #0: subdevice #0

Also I am successfully able to record with and play it on the speaker
arecord -r 16000 -c 1 -f S16_LE test.wav

Also when I mannually select matrix mic on audacity, I can see the recording very clearly

But when I run rec test.wav, I do not see the bar moving

Input File     : 'default' (alsa)
Channels       : 2
Sample Rate    : 48000
Precision      : 16-bit
Sample Encoding: 16-bit Signed Integer PCM

In:0.00% 00:00:03.84 [00:00:00.00] Out:180k  [      |      ]        Clip:0

Can somebody tell me where I am going wrong

Thanks in advance

#2

To test the Alexa AVS SDK with the MATRIX Creator/Voice we recommend using our fork here which contains all the needed setup for our platform.

Even better, use a full guide in Hackster:

Our fork is currently using 1.6 version of the SDK, If you specifically want to test with the 1.7 version you can use our fork as a guide. Or just wait for the update :slight_smile:

Let us know how it goes.

-Yoel