end-to-end audio testing (jacks)
jaswinder.singh at linaro.org
Tue Sep 27 19:10:20 UTC 2011
On 27 September 2011 20:46, Kurt Taylor <kurt.taylor at linaro.org> wrote:
> These are really good ideas. I had started a discussion with Torez several
> months ago about an automated test for audio. My idea at the time was to
> use a sine wav at a particular frequency and use or hack one of the
> tuner/freq analysis apps to detect the frequency. If it was too garbled or
> distorted, it wouldnt recognize the frequency.
I think, too distorted sine-wave is an easy kill and most probably
wouldn't even leave
the developers desk.
Usually when a developer calls it done, the driver plays clean enough audio.
In my experience, a commercial quality issue would show up in the form
phase jumps in the sine wave and/or stability in the long run.
While I always tested it manually, I think it should be possible to
write a simple
"sine-verify" application(or an alsa plugin?) that would analyze the
my two paise.
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