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Question Audio quality and volume issue

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experiencing some audio issues with headphones:
- audible white noise
- low pitch noise when plugging in audio cable
- too loud. this makes volume control less precise.
- way too much loud during call. even with lowest volume.

LineageOS 18.1 latest, NoGravity kernel, V4A, AML, ACC. didnt check with other environment, but checked this happens without V4A installed too.
possibly kernel or ACC modified PMIC configs, or just device onboard sound driver has poor quality.

how was your experience? leave reply to figure out solution.
 
Last edited:

Lu5ck

Senior Member
Dec 18, 2013
257
69
experiencing some audio issues with headphones:
- audible white noise
- low pitch noise when plugging in audio cable
- too loud. this makes volume control less precise.
- way too much loud during call. even with lowest volume.

LineageOS 18.1 latest, NoGravity kernel, V4A, AML, ACC. didnt check with other environment, but checked this happens without V4A installed too.
possibly kernel or ACC modified PMIC configs, or just device onboard sound driver has poor quality.

how was your experience? leave reply to figure out solution.

I didn't install the custom kernel. I do have V4A and AML.
You also need to do the sepolicy fix for V4A.
 
Last edited:

Lu5ck

Senior Member
Dec 18, 2013
257
69
i didnt install any. AML just fixed issue about SE.
Isn't NoGravity kernel the custom kernel?

As for sepolicy, at least not for me, did V4A says "supported" and "normal" status?

This is what I followed for sepolicy
 
Isn't NoGravity kernel the custom kernel?

As for sepolicy, at least not for me, did V4A says "supported" and "normal" status?

This is what I followed for sepolicy
because i really wanted to keep my SE enforcing, i followed this guide
and it works
 

Lu5ck

Senior Member
Dec 18, 2013
257
69
because i really wanted to keep my SE enforcing, i followed this guide
and it works
Interesting, I just tested and notice that this method while worked but because it disable AML, it means you can only use one sound mod and can't switch to other sound mods as you please otherwise it will break whatever mod.

The link I gave didn't disable se enforcing, it basically reapply the sepolicy.rule because for whatever reason, v4a or aml didn't apply the said sepolicy.rule or it got revoked one way or another.

but as i experienced this issue even before installation of custom kernel and v4a, i assume this is hardware issue.
I didn't encounter those noise on my phone, even at clean install so yea...