speaker crackling in GSM network for SM-G9910 - Samsung Galaxy S21 Questions

Hi all! When I use S21 Qualcomm in a GSM network, I get a speaker crackling at the end of interlocutor words, in other types of networks everything is ok. This is fixed by enabling hearing aid support, although it seems that low-pass filter turns on and quality of conversation decreases. There is a crack in the headphones too, but almost imperceptible. Perhaps I need to activate other conversational codecs through the service menu or in some other way?

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Mic issues - pops and lots of noise

audio and video recordings with my compact constantly pop and pick up a lot of noise and occasionally a high pitched sound. Has anyone else ran into this problem? Changing the mic sensitivity from auto to medium helps a little but I'm guessing I need to get it repaired.
rumpingpumping said:
audio and video recordings with my compact constantly pop and pick up a lot of noise and occasionally a high pitched sound. Has anyone else ran into this problem? Changing the mic sensitivity from auto to medium helps a little but I'm guessing I need to get it repaired.
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I've made a few videos with mine and no problems. I do get an echo on speakerphone but that's it.
i've got this problem when recording calls
I don't have direct experience, but I have read that it is wise to switch to airplane mode to avoid crossover from network connections.

Bluetooth headset for calling?

Hi.
I'm looking for a Sony Bluetooth headset for calling. I usually go to noisy places so the most important thing is noise cancellation (or noise reduction) of the microphone.
I looked for that and I see there're three options:
-SBH52
-SBH70
-SBH80
I haven't used any of that so I don't know about their noise reduction(cancellation) performance.
Can anyone give me some advice or reviews about them?
Thanks.

Microphone issue using loudspeaker

Hello,
When I make calls on loudspeaker the microphone cuts out intermittently and the recepient cannot hear me but I can return to the conversation by simply turning off the loudspeaker, obviously this is not convenient.
I have tried all the software fixes available but no success.
In the diagnostic menu for rcv_dual mic loopback the test does not record anything and similarly fails the interactive mic test in the Samsung online interactive app.
The mic does work for phone to ear calls and video recording.
All of this does not make any sense.
Samsung S10 973F

Stereo bluetooth on phone calls? (ignore mic)

I got some new true wireless earbuds and the audio quality is great for music, and the microphone quality is actually great when recording something like a voice note. But as soon as you use both the audio and mic at the same time, both suck.
So is it possible to use the headset in stereo just for the audio and the phone's regular microphone during calls? I've been looking around for the last hour or so and can't seem to find anything. No apps, no settings, no developer options. As soon as I turn off calls on the device it just uses the phone's speakers and mic.
ScottyDoesKnow said:
I got some new true wireless earbuds and the audio quality is great for music, and the microphone quality is actually great when recording something like a voice note. But as soon as you use both the audio and mic at the same time, both suck.
So is it possible to use the headset in stereo just for the audio and the phone's regular microphone during calls? I've been looking around for the last hour or so and can't seem to find anything. No apps, no settings, no developer options. As soon as I turn off calls on the device it just uses the phone's speakers and mic.
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To be honest ... IDK.
On some devices, you can set another audio device for a special app.
Settings - Sound and vibration - Separate app sound
I just tried it with bluetooth speakers and the phone app, but was not successful. Maybe it works for you.

Question Poor in-call audio quality (muffled)

Hi everyone.
Just got my Edge 40 Pro and made a few calls on it, noticed a mediocre sound quality.
In-call sound is muffled and there's a general lack of clarity to it.
WhatsApp voice messages suffer from the same issue.
Problem is both on earpiece and speakerphone mode.
Also noticed that the network tones - the beeps you hear before the called person answers the phone - are unequal in length, one is short, the next one is long, and they have a reverb-like noise.
Other media like YouTube or Spotify is unaffected; in fact it's crystal clear.
Can anyone relate on this?
All things considered, I'm thinking there's some badly tweaked "audio enhancement" at work here.
Network operator is Iliad Italy.
Thank you

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