i2S Mems microphone ics-43434 setup?

[mano1979]

Thank you for reporting an issue with AlexaPi.

Make sure you are running the latest version of AlexaPi, and look through issues before submitting.

Check out our Wiki, and make sure to look at Debugging, and Audio debugging in particular before filing an issue.

In order to help troubleshooting, be sure to include the following information:

Output of the audio debugging script.

Your OS (including version) where you are running AlexaPi:

Your hardware platform and model you are running on:

Python release (python2 --version):

Description of problem:

i installed the microphone and it works when i use
arecord -Dmic_sv -c2 -r48000 -fS32_LE -twav -d10 -Vstereo test.wav
but how do i use it with alexapi? how to setup the config.yaml?

Expected:

Clear explaination on how to set audio in/out with examples

Problem-relevant config.yaml entries:

  # Name of your microphone device: "raspberrypi"
  # leave empty for default
  input_device: "default"

  playback_handler: "vlc"

  # you can go here with alsa, pulse or others
  # keep blank for the best audio output selected by the underlying code
  output: ""
  output device: "hw:0"
  # currently supports ALSA only
  output_device: "alsa"

Steps to reproduce:

Traceback (if applicable):

Additional info:

Status after alexapi start:

pi@raspberrypi:~ $ sudo systemctl restart AlexaPi.service
pi@raspberrypi:~ $ sudo systemctl status AlexaPi.service
● AlexaPi.service - Alexa client for all your devices
   Loaded: loaded (/usr/lib/systemd/system/AlexaPi.service; enabled)
   Active: active (running) since Sat 2017-11-25 19:35:31 UTC; 33s ago
     Docs: https://github.com/alexa-pi/AlexaPi/wiki
 Main PID: 1346 (python)
   CGroup: /system.slice/AlexaPi.service
           ├─1346 /usr/bin/python /opt/AlexaPi/src/main.py --daemon
           └─1361 /usr/bin/pulseaudio --start --log-target=syslog

Nov 25 19:35:34 raspberrypi python[1346]: ALSA lib pcm.c:2239:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.phoneline
Nov 25 19:35:34 raspberrypi python[1346]: ALSA lib pcm_dmix.c:1022:(snd_pcm_dmix_open) unable to open slave
Nov 25 19:35:34 raspberrypi python[1346]: Cannot connect to server socket err = No such file or directory
Nov 25 19:35:34 raspberrypi python[1346]: Cannot connect to server request channel
Nov 25 19:35:34 raspberrypi python[1346]: jack server is not running or cannot be started
Nov 25 19:35:35 raspberrypi python[1346]: INFO: Checking Internet Connection ...
Nov 25 19:35:36 raspberrypi python[1346]: INFO: Connection OK
Nov 25 19:35:36 raspberrypi python[1346]: INFO: AVS token: Requesting a new one
Nov 25 19:35:37 raspberrypi python[1346]: INFO: AVS token: Obtained successfully
Nov 25 19:35:39 raspberrypi python[1346]: [6cb004d8] alsa audio output error: cannot estimate delay: Input/output error

[revere521]

i have been using AlexaPi on my raspberrypi with pulseaudio in systemwide mode with no issues with my mic for quite a while (i use a ps-eye, which requires pulseaudio becase it has 4 mic channels)

https://github.com/alexa-pi/AlexaPi/wiki/Audio-setup-&-debugging#running-pa-in-system-wide-mode-recommended

I don't think Alsa supports a stereo or multi-channel mic at all.

[revere521]

may want to look at this too; https://www.raspberrypi.org/forums/viewtopic.php?t=173640

[mano1979]

That is the tutorial i followed to install the mems mic. It works fine after following this tut. , when i call it manually. Though somehow i can't seem to use it with alexapi.

This is a single channel microphone. (If you connect 2 of them you can set them up as a stereo mic)

[revere521]

i can see in the log that pulseaudio and alsa appear to both be running; you may want to review the whole audio debugging guide in the wiki. or read the pulse section and either set it up in systemwide mode or disable it. https://github.com/alexa-pi/AlexaPi/wiki/Audio-setup-&-debugging#pulseaudio