AM625: How to change the default audio sampling rate on Audio Codec

Mitesh Hiran

Part Number: AM625

Hello, I am using SK Am62 Eval board and this comes with a audio codec and the default is 44.1KHz, and I would like to change this to 48KHz in ALSA and / or device tree Linux Kernel .

Please let me how to change this.

Thanks.

over 2 years ago

0 Suren Porwar over 2 years ago

TI__Mastermind 30145 points

Hi Mitesh,

On AM62 SK board, we are able to play 48Khz/44.1 Khz comfortably, we can play contents apart from these sample rates due to clk divider and bypass_pll logic implemented in the codec driver:

So its dependent on the application (whatever sample rate it wants to play)

Best Regards

Suren

0 Mitesh Hiran over 2 years ago in reply to Suren Porwar

Mastermind 6235 points

Hi Suren, thanks for your email. I understand that but how do we change the default sampling rate for audio codec from Linux, please?

thanks

0 Suren Porwar over 2 years ago in reply to Mitesh Hiran

TI__Mastermind 30145 points

Hi Mitesh,

For playback if you want to force a different sample rate (instead of trying the source file's native rate) I think you can try https://unix.stackexchange.com/questions/74558/change-sampling-rate-in-alsa#141234

Best Regards,

Suren

0 Mitesh Hiran over 2 years ago in reply to Suren Porwar

Mastermind 6235 points

Hi Suren, I managed to change the sampling rate in the daemon.conf on the pulseaudio to fix this issue. Thanks.

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AM625: How to change the default audio sampling rate on Audio Codec