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Studio Bluetooth

davethecipo
New Contributor II

Hi,

I am running the A2DP sink example on CYBT-343026-EVAL board. I play a 48kHz (sample rate) test audio file from a Pixel 4A android device.

The oscilloscope show the I2S word select signal to always be at 44.1kHz. I enabled android developer options, and sure enough this is the only sample rate that is selectable (i.e. not grayed out).

It seems that the 48kHz cannot be negotiated.

Any suggestion on how to make the 48kHz available? I would expect this to work after reading KBA228409 and this page https://community.cypress.com/t5/Resource-Library/A2DP-Sink-Example-on-CYW20706/ta-p/246388.

Thanks, Davide

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3 Replies
AnjanaM_61
Moderator
Moderator

Hello @davethecipo 

Can you please confirm which codec you are using? 

Hope you are testing using default A2DP sink example available in SDK and have not modified the default codec configuration used. Can you please confirm? 

Regards,

Anjana

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davethecipo
New Contributor II

Hi @AnjanaM_61 ,

Android shows the SBC codec. I changed the Makefile in order to add CYBT-343026-EVAL to the supported platforms, and tried different options for the UART (I'm new to this stuff...). Other than that, I am running the vanilla code.

Thanks, Davide

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Owen_Zhang123
Moderator
Moderator

Could you share some OTA log or btsnoop log to check the capability negotiation?

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