Microphone clipping in audio and video recordings - Xiaomi Mi 9 SE Questions & Answers

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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[Q] Camera recording sound

Hi,
Quick question about the way this device records sound. Its by far the best phone ive ever used to record sound, however i keep running into a problem with volume levels. It never stays constant and fluctuates depending on whether the sound is loud or quiet.
Now that wont make sense at first so heres a link to a video i shot in the studio with some friends.
https://www.dropbox.com/s/zjcbpfrutvvgher/lemon eyes - 12-06-12.mp4
Note at around 2:20 in the volume changes quite dramatically. I assure you, in real life the volume of the sound was constant throughout the song, the only change was that both guitars had stopped playing, thus decreasing the decibel level slightly (the guitar sounds at that point were from the effects pedals), which surely wouldve made it quieter if anything
I dont believe this a manufacturing defect as ive had it on the past 4 HOX's i owned, but perhaps more to do the way the sound is processed. It is the same result recording in mono/stereo/720/1080 etc.
EDIT Just remembered, i had to turn my speakers up all the way to hear that properly so the recording level is far too quiet as it is. I can barely hear it through the phones speaker.
Yeah got same problem,
I did turn the stereo off in video options which did improve it. Give it a go and turn the Stereo feature off.
The sound was not dropping as much,
I tested this out at a footy match.
http://www.youtube.com/watch?v=O8JOakdfFE0
Thats a temporary fix i suppose, it did improve it though it didnt fix it for me.
Does anybody know if this is something that is likely to be resolved by a software update? Or can anybody recommend any apps to record this type of thing with if it is a software issue.

Constant background noise and hissing using the mic on CM

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.

Video Recording hiss

When I record a video with or without high res audio, I get a hiss which is the unwanted white noise kind of audio. Anyone else get that? If so is there someway to record without that hissing sound or maybe another video recording app that fixes it or something.
Do you hear the noise when you playback the recorded video through phone itself or PC?
Charkatak said:
Do you hear the noise when you playback the recorded video through phone itself or PC?
Click to expand...
Click to collapse
Both actually. I have a feeling it's just the phone's audio recording quality. Although it is quite good, I feel it lacks noise cancellation.

How can I disable microphone noise reduction?

Hello all.
With other, older cellphone models, I used to have the leisure habit of recording audio (messages or files) to save/send live songs recordings. Granted, the quality was never impeccable, but at least I could hear the bass notes (or their distortion whenever the sound source was near enough).
Now, whatever method of noise reduction (NR) the Moto G5S employs is ruining this experience. Hearing the bass is crucial for samba and capoeira. The NR kicks in after 2 or 3 seconds from the beginning of the recording. Does anyone know of a way to disable it?

Low and horrible sound quality from internal mic

Hi guys,
I know that I think that this question/issue is well-known for some LOS users, but not really sure if it was fixed on some devices, or some ROM builds.
My problem is regarding to the low volume, although I could increase the volume by playing with the dB gain feature on some apps; but more remarkable is the poor sound quality while recording audio using the internal mic (mainboard). And if I use headphones (with mic) the recorded audio sounds perfect.
I read somewhere that could be related to the 'Active Audio Cancellation' feature on some devices, allowing to reduce the environment noise to talk better. But, if it's what happends, makes the app to record the audio in such a way that it can not be heard correctly due to the "cuts" that occur continuously.
I though in checking:
· system/etc/audio_platform_info.xml
· system/etc/audio_effects.conf
· system/etc/media_profiles.xml
· system/etc/mixer_paths.xml
. . . but not sure if will fix something, and what to look for exactly.
Thanks

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