* Rockchip/rk3399-gru-sound: Use 48KHz sample rate for all devices [not found] <1660998413413997889-webhooks-bot@alsa-project.org> @ 2022-08-20 12:27 ` GitHub pull_request - opened 0 siblings, 0 replies; only message in thread From: GitHub pull_request - opened @ 2022-08-20 12:27 UTC (permalink / raw) To: alsa-devel alsa-project/alsa-ucm-conf pull request #201 was opened from alpernebbi: The rk3399-gru-kevin board has problems when trying to simultaneously playback and record audio with the default PulseAudio sample rate of 44.1KHz. When the following command is run, the playback starts a few seconds after the recording finishes. arecord -vvv -d 4 /dev/null & sleep 0.2; speaker-test -l 1 -p 100000 -t sine When the sample rates are set to 48KHz either with PA configuration or in the UCM, playback and recording both start immediately. Another example is when a music player is running and we start `arecord`, the music starts stuttering but `arecord` can't record anything either. Apparently, this is a hardware limitation due to the I2S lines being shared between the devices. Set all the device rates to 48KHz like Chrome OS does to make things work smoothly. [1] https://chromium-review.googlesource.com/389695 [2] https://chromium-review.googlesource.com/898682 Request URL : https://github.com/alsa-project/alsa-ucm-conf/pull/201 Patch URL : https://github.com/alsa-project/alsa-ucm-conf/pull/201.patch Repository URL: https://github.com/alsa-project/alsa-ucm-conf ^ permalink raw reply [flat|nested] only message in thread
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2022-08-20 12:27 ` Rockchip/rk3399-gru-sound: Use 48KHz sample rate for all devices GitHub pull_request - opened
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