ReSpeaker Mic Array V2 microphone sensibility

[jccoral]

I installed Kalliope on a Raspberry PI 3B + and a ReSpeaker Mic Array V2 mic.
Everything works fine but I have to be within 50cm of the mic for it to work.
Cannot change settings with Alsamixer.
If I speak 2 or 3 meters away from the microphone, the ReSpeaker LED will light up.
Is there another way to increase the sensitivity of the microphone?

[Sispheor]

Kalliope mic settings is based on the system setting config.
It needs to work at the Linux system level to work on kalliope.
I know that for this kind of microphone you need to customize a bit the Alsa settings.

[corus87]

If you have used the setup script or followed the installation guide to setup pulseaudio you should be able to use alsamixer (Press F5 for all settings).
I use the respeaker V2 too and I can change the input volume with alsamixer without configure any alsa settings e.g. .asound.conf if you are using pulseaudio otherwise it may be necessary to configure a ,asound.conf.

And as @Sispheor mentioned if the respeaker works on the terminal with e.g. rec test_file.wav it should work with kalliope too.

[jccoral]

Kalliope is working with Respeaker. But only if i speaker at less than 50cm from the microphone.
I installed Kalliope following the installation guide(Manually).
I have the following alsa message when i switch to Respeaker with F6

[corus87]

If you setup your respeaker as default in pulse with pactl list sources short and pactl set-default-source DEVICE_NR you should see in alsamixer as "Device" (or in your case "Carte"): PulseAudio.
Then you can just use F5 and set capture to a higher value.