Constant background noise and hissing using the mic on CM - G3 Q&A, Help & Troubleshooting

With the loss of the camera this is my biggest problem using Cyanogenmod (12.1 and 13). The microphone is noticably worse than on stock which can be heard through, in my case, WhatsApp voice messages or audio recordings (I like to occasionally record myself playing guitar i.e.).
Does anyone know how to fix this issue? Would be such a relief to finally get a decent mic quality.

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No sound through speaker.

So I am on CM 9 B1. I was on PA 2.1 yesterday(few days before too), but as of right now when I try a video call apps the sound will not play through the speaker, only the spot up top where you put your ear. This has been happening for a short while and very frustrating because I use video chat to keep in touch with family and friends. Before the call connects there is sound through the speaker.
Anyone else have this issue or a fix?
Sent from Konnor the E4GT.

[Q] Video call sound issues

Hi guys, I'm having this weird issue while in a video call either Tango or Oovoo, both have the same issues.
once the call starts, the sound will play through the speakers as normal, but after around 30 seconds or so, the sound instead will be routed to the earpiece and i cannot find any buttons to force the phone to play the sound through the speakers instead. I had to use a earphone in order to proceed with the video call else i can't hear the other party as the sound is playing through the earpiece.
Googled and couldn't find anybody having the same issue as me.
Currently running ViperX rom 3.3.8
Thanks guys!

[Q] Weird video calling issues

Hi guys, I'm having this weird issue while in a video call either Tango or Oovoo, both have the same issues.
once the call starts, the sound will play through the speakers as normal, but after around 30 seconds or so, the sound instead will be routed to the earpiece and i cannot find any buttons to force the phone to play the sound through the speakers instead. I had to use a earphone in order to proceed with the video call else i can't hear the other party as the sound is playing through the earpiece.
Googled and couldn't find anybody having the same issue as me.
Currently running ViperX rom 3.3.8
Thanks guys!

Calls fading in and ou when using speakerphone

Hi, there.
I've using my S9 for a couple of weeks now and I noticed a very annoying problem.
If I'm on a call (phone call, video call, regardless the app), using the speakerphone completely ruins it. On a video call it's easier to feel the problem: you can still see me talking, but you can't hear anything. The voice keeps fading out and back in and out again, like the volume was lowered and put back to normal. It's basically impossible to understand anything. Quality of the image is fine, it's smooth, not pixelated, but the voice is just terrible.
If I use the earpiece or wired phones (have not tried with BT yet) this problem doesn't happen.
I have the feeling that this has to do with the noise cancelling trying to filter out the noise.
When calling my wife (Xiaomi Mi A1), it also happens from her side to the point where we can't do video calls anymore. If I call my sister (iPhone 7), the audio is just fine for the same app and on a video call.
I have the feeling that this is a known issue, but I couldn't find a post about it.

Microphone clipping in audio and video recordings

When i record any audio or video, the audio is clipping, like if there is a lowpass filter on it. This especially happens in loud environments, or when there is an high presence of low frequencies. For example on Instagram stories the audio is really bad even if it's not loud and it's really annoying
I've heard about modifing mixer_paths but i don't know where to modify. This issue started happening since i updated to miui 11, now i'm on xiaomi.eu 20.2.27.
I would be glad if anyone could try to fix this problem.

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