Annoying noise in sound with headphones in android

[Ainvar]

I had a noisly audio with headphones in android. But in Windows the audio is clear. Installed v4a but the problem was still there (better volume but still noisly) . Finally edited the file audio_effects.conf in vendor/etc and commented the lines:
# pre_processing {
# voice_communication {
# ns {}
# aec {}
# }
#}
Now the sound in android is without noise. But don’t  know why this pre-processing was applied to all kind of content.

Hope this will be useful to someone. (and sorry for bad english)

[Chris]

Hey thanks for this, I noticed a few poping sounds. Will try this out now and report back. btw this change requires root

Edit. I made the change and it didn’t seem to make any difference for me.

Is there a way to improve the sound on this tablet? Mine is pretty bad, the volume jumps around (especially when its quiet) and it just sound muffled.

[Author]

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