Echo cancellation in custom Rom (using Signal for example) - Xiaomi Redmi Note 5 / 5 Plus Questions & Answers

Hello everyone,
I'm really curious, as I just flashed two custom roms on the vince device of my girlfriend, and on both (Elixir - Android 12 and Havoc - Android 11), someone calling her phone car cleary hear back his own voice, making it louder and louder until it is not bearable.
This feels like noise cancellation is not working, while it worked flawlessly on stock phone a few weeks ago ; I'm beginning to wonder if anyone here is using a "data messenger" like Signal, Telegram or Whatsapp ?
Is there a commonly known fix for this ? Or Am I forced to set her back to stock ? O__O
Thanks in advance for your answers guys.

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[Q] i9300 no sound in front speaker on incoming calls

Hello everyone,
Just got my S3 ( i9300 ) and surely enough flashed it to latest cm stable from their website which is 10.2.
Everything works, but I have this strange issue with incoming calls. When i answer the call, I cant hear the other person through the front speaker. I need to enable the back speaker and disable it to get sound on the front one. Sometimes the sound would be distorted. This does not happen on outgoing calls, they work perfectly fine.
I later flashed kitkat nightly and it had the same issue.
Problem goes away if i recover to stock. Unfortunately, i can't stand the damn thing.
Baseband v: I9300XXUGMK6, which is the newest for my region and also seems to be most common.
I tried googling, but couldnt find this specific glitch.
Any suggestions would be appriciated.
Thanks
Same problem, same story
feiks said:
Hello everyone,
Just got my S3 ( i9300 ) and surely enough flashed it to latest cm stable from their website which is 10.2.
Everything works, but I have this strange issue with incoming calls. When i answer the call, I cant hear the other person through the front speaker. I need to enable the back speaker and disable it to get sound on the front one. Sometimes the sound would be distorted. This does not happen on outgoing calls, they work perfectly fine.
I later flashed kitkat nightly and it had the same issue.
Problem goes away if i recover to stock. Unfortunately, i can't starrt d the damn thing.
Baseband v: I9300XXUGMK6, which is the newest for my region and also seems to be most common.
I tried googling, but couldnt find this specific glitch.
Any suggestions would be appriciated.
Thanks
Click to expand...
Click to collapse
I have the same problem, have you found a solution?
benschhold said:
I have the same problem, have you found a solution?
Click to expand...
Click to collapse
I'm very happy to report, that yes I have. Archidroid rom ( 2.4.6 is the latest stable ).
Occasionally, I still get the same glitch, but it happens once every three reboots and goes away after first time it occurs.
Edit: i've also flashed the new baseband which comes with the rom: I9300XXUGNA8
feiks said:
I'm very happy to report, that yes I have. Archidroid rom ( 2.4.6 is the latest stable ).
Occasionally, I still get the same glitch, but it happens once every three reboots and goes away after first time it occurs.
Edit: i've also flashed the new baseband which comes with the rom: I9300XXUGNA8
Click to expand...
Click to collapse
I had the 2.4.5 installed and had to switch because of the issue, so i switched to archidroid 1.x version and problem was gone, now on archiport(ultimarom beta1) the problem is there again. Thats real sad because the rom is such awesome
So i think sammy had done something in their 4.3 version that fixed that
benschhold said:
I had the 2.4.5 installed and had to switch because of the issue, so i switched to archidroid 1.x version and problem was gone, now on archiport(ultimarom beta1) the problem is there again. Thats real sad because the rom is such awesome
So i think sammy had done something in their 4.3 version that fixed that
Click to expand...
Click to collapse
That's really odd, since I've been using Archi ever since I first flashed it ( at the time I believe it was 2.3.x ), and I'm a happpy user since then.
try dialing outgoing call to whatever number a couple of times and then get some incoming calls?
And yes, Archidroid is awesome, has everything you could possibly want ( the only exception being MHL )
feiks said:
That's really odd, since I've been using Archi ever since I first flashed it ( at the time I believe it was 2.3.x ), and I'm a happpy user ever since.
try dialing outgoing call to whatever number a couple of times and then get some incoming calls?
And yes, Archidroid is awesome, has everything you could possibly want ( the only exception being MHL )
Click to expand...
Click to collapse
I just have to activate loud speaker and then deactivate during call and sound is normal, a lot of users have the same issue but noone have a 100% solution. I know its awesome and will give it a shot when he release his 2.4.7 with CM
benschhold said:
I just have to activate loud speaker and then deactivate during call and sound is normal, a lot of users have the same issue but noone have a 100% solution. I know its awesome and will give it a shot when he release his 2.4.7 with CM
Click to expand...
Click to collapse
After i had a go with Omni, I can't think of any reason why should I switch back to CM. Arhci mentioned CM's support and developer base as a reason for the switch, will see...
I use my phone at work quite heavily and it's just impossible for me to switch back and forth speakers.
Found something interesting in kryten2k35 thread... Will report
CallSoundRepair.apk - Work as well
Hello folks.
As a little hint, 'cause I had the same problem about the sound where I fixed it, with apk, check the link below, I hope that it can might work for you too.
Topic Forum = http://forum.xda-developers.com/showpost.php?p=50065763&postcount=154
Directly apk = http://forum.xda-developers.com/attachment.php?attachmentid=2560477&d=1391607726

[Q] Hangouts Echo After Upgrading to 5.02

After upgrading to 5.02, Hangouts call quality has dropped significantly. My parents have Samsung Galaxy running on 4.x Android. Now, every time they call me, they can hear themselves back. On my side, the audio gets disrupted frequently. They don't have this issue when they talk to my brother who is also on Android (different phone). I did a complete factory reset (my phone is on factory image), but that didn't help. Does anybody else have this issue?
Skype works fine when it works. Most of the time, it doesn't ring when they try to call me though, so it is useless.
I just finished a Hangouts conversation with my parents using my old Galaxy S2 running CM 11 (4.4.4). The audio was crystal clear for both parties. So it has something to do with Z2.
Have same issue, it's completely unusable, you speak 1.2.3.4.5 and afte r5 it starts to echo back, disrupt the voice etc.
5.1.1 still does not resolve this issue.
I kept one tablet on 4.4.x and there is no issue there.
Any further ideas?
tx

Issue of muffled voice in calls for custom roms

Hi,
So i own a poco f1. I have installed a number of custom roms on this phone. But the reason I had to switch everytime is because of a constant voicecall issue. The issue, muffled voice heard from people i call and vice-versa and my voice is not understandable. I noticed this issue to persist only on custom roms as all miui roms (current 10.3.8 global) seems to not have this issue.
The build.prop tweak (disabling fluencetype to 'none') also didnt work.
And so, here I am, I guess.....
Thanks in advance
ssaevoli said:
Hi,
So i own a poco f1. I have installed a number of custom roms on this phone. But the reason I had to switch everytime is because of a constant voicecall issue. The issue, muffled voice heard from people i call and vice-versa and my voice is not understandable. I noticed this issue to persist only on custom roms as all miui roms (current 10.3.8 global) seems to not have this issue.
The build.prop tweak (disabling fluencetype to 'none') also didnt work.
And so, here I am, I guess.....
Thanks in advance
Click to expand...
Click to collapse
I'm dealing the same f4cking problem, I think the phone is using top much as main mic and bottom as noise cancelling and it's a pain in the as5
Have you tried LineageOS? I was thinking of installing it, but I won't if there are problems with voice calls...
Cheers
esuhl said:
Have you tried LineageOS? I was thinking of installing it, but I won't if there are problems with voice calls...
Cheers
Click to expand...
Click to collapse
I tried NitrogenOS, Havoc, Miui, Miui me, Miui eu, miroom and all have that godamn issue,
ssaevoli said:
Hi,
So i own a poco f1. I have installed a number of custom roms on this phone. But the reason I had to switch everytime is because of a constant voicecall issue. The issue, muffled voice heard from people i call and vice-versa and my voice is not understandable. I noticed this issue to persist only on custom roms as all miui roms (current 10.3.8 global) seems to not have this issue.
The build.prop tweak (disabling fluencetype to 'none') also didnt work.
And so, here I am, I guess.....
Thanks in advance
Click to expand...
Click to collapse
here i am fixin my own issue, hah
if build.prop fails and nothing makes sense (like how bricks could technically be domesticated rocks)...
use pixel experience, it worked for this device. (....bye bye customizations)
sorry for the trouble and do share if u got a better solution. see u around.

Nobody can hear me when calling, but microphone is not broken.

Hello,
I got this phone since my former one died without notice (coming from a 5 year old oneplus one), it's my god daughter's previous one.
Working good smooth and all on stock rom (seems to be carrier customed, bundled with carrier apps) : Sony XPeria X F5121 / android 8.0, build 34.4.A.2.118 Sept 1 2018 / kernel 3.10.84 Aug 24 2018
I have a slight problem : whenever I'm calling, I have to put the "hands free" mode with speakers otherwise nobody can hear me. I don't think the microphone is broken and I am thinking of a "bug" in the rom.
Before re-installing my apps, i could call and people could hear me. The phone app is the stock one.
If I speak right in front of the microphone, but like shouting, people can hear me but at very low level.
Searched a bit on the internet, but didn't find anything about this, some people say it is because other apps are conflicting, I tried to remove every app I can think of using the microphone (whatsapp, line, etc), but didn't changed a thing, tried to tune the "noise reduction" in google voice search, but didn't worked either.
If I try to audio call with whatsapp, facebook messenger lite or line, people can't hear me. Using google voice search works without flaws.
Before going for a reset factory or flashing the phone with custom rom, is there anything else I can try to solve the problem ?
problem still not fixed : looking for a replacement microphone. Anyone know how to replace the part ? If defective and I dreamt that it was working with factory reset, I will replace it.
Found this piece, but don't know where it can fit ? Do I have to solder it on the mainboard ???
Ok update :
1- the microphone part sold in the link is not correct, I don't think it fits.
2- I teared up the phone, to find some little "pearl" blocking the microphone ... after removing the pearl, microphone works flawlessly.

Redmi Note 9 Pro Speakerphone is always active on custom roms. can't switch to earpiece

Hi, I'm having a issue with my redmi note 9 pro. Whenever i try to make a call, it always goes to speakerphone. I cannot get it to go to the earpiece. WHen i try turning off speakerphone, the audio is still routed through the bottom speaker, and the person on the end of the call notices i sound broken up. WHen i swotch on the speakerphone the sound is clear, and then the person can hear me just fine. I've tried with whatsapp, google voice, and the regular phone app, and all have the same issue. I'm running Evolution X currently as my rom, but i've tried lineage os, and it has the same bug. On stock MIUI I don't remember having this issue, so maybe it's something weird with the custom roms. I'm also rooted with magisk. Anyone got any ideas, or has anyone ever experienced this issue when running custom roms on this phone? Any ideas, or suggestions are welcome. Thanks
Hi, I have this problem too. Of course inside the pubg mobile game. To temporarily solve this problem, first turn off the phone and connect the headphones when the operating system logo is displayed. A hissing sound is heard when plugging in the headphones.
Of course, to avoid this problem, you should use Bluetooth headphones.
Hi, I just tried your suggestion. it doesn't appear to work. My issue is with the earpiece, not headphones. Headphones for me have always worked flawlessly when running custom roms or stock. My issue is when making calls using the earpiece. Making calls using headphones seems to work fine. However when trying to use the earpiece, i cannot get it to work. What i mean by earpiece, is the top speaker of the phone, the one you have to hold close to your ear when making a call. FOr whatever reason calls always remain on the bottom speaker, and never seem to go to the top speaker aka earpiece. This happens in all calls, and in apps like whatsapp. Has anyone else ever experienced this issue? Again, headphones seem to work fine, and yes I'm rooted, and running a custom rom. When i was running stock, I don't ever remember this happening, but now that i'm running a custom rom, i can't get the earpiece to work. I really don't want to go back to the stock miui rom, but idk maybe i will if a solution can't be found
pielordbrian said:
Hi, I'm having a issue with my redmi note 9 pro. Whenever i try to make a call, it always goes to speakerphone. I cannot get it to go to the earpiece. WHen i try turning off speakerphone, the audio is still routed through the bottom speaker, and the person on the end of the call notices i sound broken up. WHen i swotch on the speakerphone the sound is clear, and then the person can hear me just fine. I've tried with whatsapp, google voice, and the regular phone app, and all have the same issue. I'm running Evolution X currently as my rom, but i've tried lineage os, and it has the same bug. On stock MIUI I don't remember having this issue, so maybe it's something weird with the custom roms. I'm also rooted with magisk. Anyone got any ideas, or has anyone ever experienced this issue when running custom roms on this phone? Any ideas, or suggestions are welcome. Thanks
Click to expand...
Click to collapse
I am having the same issue! any solution please let me know!
I am having the same problem - BUT on stock MIUI 12.5 - it started happening after I upgraded. If I could go back I would, but am happy to flasha new ROM if that will fix it.
I was thinking of flashing Lineage 18.1 but if that is having the save issue I ont bother. It must be a note 9 pro issue seeing as I only have the stock version..
I wonder if anyone at all has fixed this issue. I even contact xiaomi technical support but they were useless!
Anybody found its solution please update?
I'm having the exact same issue. When I initiate call it's on loudspeaker even though I didn't select that option. The other side can't hear me well. When I select "speaker" then it's still on loudspeaker, as it should be, and the other person can hear me fine.
I had the problem on crDroid (Android 12) and am currently experiencing the same problem on Pixel Experience (Android 12).
Please help someone us
I found the solution when I changed sim 1 to sim 2 the problem was solved.
mamamoiryani said:
I found the solution when I changed sim 1 to sim 2 the problem was solved.
Click to expand...
Click to collapse
Not quite sure I follow. Are you saying to remove sim 1? Or are you saying to change the default calling sim to sim 2 or something? I should note that I'm using both sims and a SD card. Are you saying I should just use sim slot 2?
mamamoiryani said:
I found the solution when I changed sim 1 to sim 2 the problem was solved.
Click to expand...
Click to collapse
Short version:
OK, so I just tried your advice, and it WORKED.
Long Version:
Ok, so I first removed both sims with the phone off. Then i put one of my 2 sims ONLY in slot 2 like you said. I inserted it into the phone, booted it up, and made a test call. To my surprise, the phone wasn't on speaker. I couldn't beileve it. I tried again, and it worked. I switched to speaker, now it's on speaker. I turned off the speaker and it was back to the earpeice! I tried whatsapp, and same result, the earpiece was working. I then decided to shut the phone down, and put the both sim 1 and 2 back in the phone. Guess what? after booting the phone up again, and making a test call, it still works! I don't understand the rhyme or reason behind it, but I'm not complaining. I'm so happy it FINALLY works.
to recap, Basically here are the steps:
1. Turn Off phone
2. Remove both sim cards.
3. Put a sim only in slot 2
4. Turn on phone and make a test call, it should no longer be on speaker!
5. go ahead and shut down the phone, and put a sim in both slots, if you are using 2 sims.
6. Turn the phone back on, and make a test call. It should still be working on the earpiece!
yes - this worked for me also - I have been looking for so long. A simple and un-remarkab le solution to a serious problem. Xiaomi should have been able to solve this.
All the same - thank you!
Great phone that was hindered for quite a few months by this serious problem
Again - thank you !
mamamoiryani said:
I found the solution when I changed sim 1 to sim 2 the problem was solved.
Click to expand...
Click to collapse
Thank you so much. I have been waiting for it for more than a year.

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