i.mx8mm sai1 to be configed for 64mic sampling

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i.mx8mm sai1 to be configed for 64mic sampling

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jimmyli
Contributor IV

Hi,

      We are trying to config sai1 to sample 64mic audio data, but fail.

      1>each sai-rx interface connects 2 codecs, each codec connects 4 mics.

      2>using sai1 rx0-rx7, total 8 ports with TDM mode, to sample 64mic.

      3>using tinycap tool to sample, but is failed and showed below:

          64mic: ./tinycap rec.wav -D 0 -d 0 -c 64 -r 48000 -b 32 -p 384 -n 4
          32mic: ./tinycap rec.wav -D 1 -d 0 -c 32 -r 48000 -b 32 -p 384 -n 4

     Can you help us to fix this problem?

     Thanks very much.

Linux ver: L5.4.47-2.2.0

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2 Replies

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Rita_Wang
NXP TechSupport
NXP TechSupport

Does it work well now?

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jimmyli
Contributor IV

Hi,

    Sorry for replying too late.

    We can't still solve this problem, and hope you can provide some advises or example code.

 

     Thanks a lot.

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