Comment 48 for bug 893402

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Dmitry Dudkin (ddv) wrote :

>On this kernel release ABE internal is running at 48 or 44.1 kHz. When making you patch to enable 32 kHz you are doing the
>assumption that ABE will do the sample rate conversion between 32 to 48. This block is not part of the Firmware.

I known that internal ABE clock is 44.1/48 but Are you sure that no sample rate conversion in the path? Because it is work for me. I check hw_params for device and it really 32Khz and no software resample in ALSA. And I hear clear sound at provided 32Khz/16/8. I guess that twl6040 work on native 32Khz and may be some thing do that conversion between twl6040 and ABE..

>Also for Volume setting you should always be around 120 (0 dB). Here setting the volume to 149 means +29 dB. So your input
>signal should be very low.
You are right. My signal work fine on 120 but speaker-test volume is too low (it is why I am not hear it at 90).