linux-kernel - Re: [PATCH v2 0/5] ASoC: q6apm: fix under runs and fragment sizes

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Message-ID: <Z7dog3cWe4BroZdT@hovoldconsulting.com>
Date: Thu, 20 Feb 2025 18:38:11 +0100
From: Johan Hovold <johan@...nel.org>
To: srinivas.kandagatla@...aro.org
Cc: broonie@...nel.org, perex@...ex.cz, tiwai@...e.com,
	krzysztof.kozlowski@...aro.org, linux-sound@...r.kernel.org,
	linux-arm-msm@...r.kernel.org, linux-kernel@...r.kernel.org,
	dmitry.baryshkov@...aro.org, johan+linaro@...nel.org
Subject: Re: [PATCH v2 0/5] ASoC: q6apm: fix under runs and fragment sizes

Hi Srini,

On Thu, Feb 20, 2025 at 04:28:42PM +0000, Srinivas Kandagatla wrote:

> On Qualcomm Audioreach setup, some of the audio artifacts are seen in
> both recording and playback. These patches fix issues by
> 1. Adjusting the fragment size that dsp can service.
> 2. schedule available playback buffers in time for dsp to not hit under runs 
> 3. remove some of the manual calculations done to get hardware pointer.
> 
> With these patches, am able to see Audio quality improvements.
> 
> Any testing would be appreciated.

With this series, the choppy (robotic) capture when using pipewire
appears to be fixed (pulseaudio worked before).

Playback is still choppy (heavily distorted), though, and now it also
appears to be too slow.

I tested using pw-record and pw-play (and mpv) on the T14s (6.14-rc3).

Johan