Nano Pi Microphone

[masoud_5april]

Hi,

I got a new nano pi neo air and wanted to add a microphone to record sound. First I tried my USB mic and it worked without any problem then I saw a topic in here:

https://forum.armbian.com/index.php?/topic/3598-nano-pi-neo-air-mic-audio-out/

According to this topic, I can attach a mic to the pins that mentioned. But my big problem is what is the hardware name?

I tried to use

arecord -l

and the output was:

root@NanoPi-NEO-Air:~# arecord -l
**** List of CAPTURE Hardware Devices ****
card 1: sndhdmi [sndhdmi], device 0: SUNXI-HDMIAUDIO sndhdmi-0 []
  Subdevices: 1/1
  Subdevice #0: subdevice #0

But it is the HDMI sound card which I think is not right.

How can I record sound with the attached mic?

Thanks.

[Igor]

On board audio is most likely disabled in config (/boot/script.bin) since the board does not provide it by default.

[masoud_5april]

On 5/28/2017 at 11:55 AM, Igor said:

On board audio is most likely disabled in config (/boot/script.bin) since the board does not provide it by default.

Thanks, Is there any way to enable and use it?

I know how to extract the fex file from bin, but don't know which parameter should be set to enable it.