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[BUG]WoV: there will be noise occasionally in the first 2 seconds #1437
Description
Describe the bug
During the validation, I found that there're some noise in the draining data(first 2 seconds) occasionally. There're no obvious errors in dmesg and trace. The noise wav is attached as below.
wov.zip
To Reproduce
- play a sound on the speaker first as the capture input.
$ aplay -Dhw:0,0 -f dat -c 2 audio.wav & - do dmic capture and clap your hands hard to wake up arecord.
$ arecord -Dhw:0,8 -M -N -r 16000 -f s16_le -c 2 wov.wav -vvv -d 10 - after capture is done, kill the aplay and check the recorded wav with paplay
$ pkill -9 aplay
$ paplay wov.wav - then you will hear the noise in the first 2 seconds
Expected behavior
The recorded sound should be clear without noise.
Impact
there're some noise in the first seconds.
Environment
- kernel: sof-dev/44443 + ASoC: SOF: control: correct the copy size for bytes kcontrol put linux#942
- sof: glk-012-stable-branch/59ad3c + PR KWD updates. #1434
- Platform: GLK Ubuntu18.04
- Reproducibility Rate： 10%~20%
Screenshots or console output
no error output
Activity
keyonjie commentedon May 15, 2019
@mrajwa looks there is noise in the draining data sometimes, can you help check?
keyonjie commentedon May 16, 2019
@keqiaozhang can you check if #1444 is helpful for this issue?
mrajwa commentedon May 16, 2019
@keqiaozhang, I can confirm I have heard similar issue some time ago but with newest fixes from integration branch it is no longer reproducible. Do you still observe this issue?
keqiaozhang commentedon May 17, 2019
@mrajwa
Unfortunately, this issue is still reproducible to me. I tested it with top glk-012-stable-branch, but 16 out of 30 are failures. I attached 2 of the failures for your reference.
test-22.zip
test-28.zip
Test recipe:
kernel: sof-dev/0f3e6
firmeware:glk-012-stable-branch/90700b + PR #1446
keqiaozhang commentedon May 20, 2019
This issue is fixed on glk-012-stable-branch/d7c4d1. This issue can be closed.