i.MX ProcessorsのトピックRe: CS42888 Mic not working

CS42888 Mic not working

UM — Tue, 30 Jan 2024 09:55:28 GMT

We have tried 3.5mm jack on i.mx 8 quad max board where the mic and speakers(headphones) are working successfully in android automotive. But for the imx-aud-io card (cs42888) speakers are working but the mic in does not take the input or record voice we have used the given command tinycap test.wav -D 1 -d 0 -c 2 -r 48000 -b 16 to capture voice .......What can be the solution for this issue.

Note :- We are using android automotive 12 version.

Thanks and Regards,

Re: CS42888 Mic not working

JorgeCas — Tue, 30 Jan 2024 18:47:46 GMT

Hello, I hope you are doing well.

I suggest you take a look on audio route of Android Auto User's guide (8.2.1 Routing audio stream to different sound cards).

Best regards.

Re: CS42888 Mic not working

UM — Wed, 31 Jan 2024 05:01:41 GMT

Hello,
I have followed all the steps for routing audio stream still my microphone is not working on imx-aud-io board.
Note :- We can hear music from speakers on the audio board but it does not take microphone input.
Could you please suggest other alternative.

Best regards.

Re: CS42888 Mic not working

JorgeCas — Wed, 31 Jan 2024 18:20:55 GMT

Got it, thank you for the information.

Is this happening only on Android OS? What about Linux?

Which connector are you using to connect the microphone? Which microphone are you using?

Best regards.

Re: CS42888 Mic not working

UM — Thu, 01 Feb 2024 05:36:51 GMT

Its happening with both the OS Android as well as Linux.
We are using the RCA connector.
The microphone we are using is the 3.5mm jack collar microphone which we have soldered to the RCA connector...
Best regards.

Re: CS42888 Mic not working

JorgeCas — Thu, 01 Feb 2024 23:29:46 GMT

Thank you for the information.

I suggest you take a look on the next thread, maybe could be helpful to your issue.

Best regards.