A55 low mic gain with usb-c earphones

probablephone · ‎12-01-2025

Hi,

I recently switched from A71 to A55. With A71 I used 3.5mm jack earphones with microphone to do phone calls. For A55, since it has no 3.5mm jack, I bought (official) Samsung usb-c earphones, with mic on the wire. Then I bought official Samsung usb-c to 3.5mm jack adapter to use my old earphones.

Problem: In both cases (usb-c earphones or adapter + old earphones) the gain on the mic is very low. I have to hold the mic 5 cm in front of my mouth otherwise it doesn't register anything. This was NOT the case with A71 + same 3.5mm jack earphones, I could just have the microphone hang on the wire on my shirt and it would pick up my voice just fine.

Any suggestions? Troubleshooting? Is there some setting I have to change?

JerryS · ‎13-01-2025

Hi and welcome to the Community. I don't have experience of this problem myself but have a few thoughts.

There are Microphone Amplifier apps available on playstore, could be worth trying one of those to see if they help?

Audio devices plugging into a USB socket have a DAC on board (Digital to Analog converter) so I wonder if it is worth asking Samsung whether there are any known issues with the Samsung adapters you bought and the A55?

The other thing you could try is booting your phone into safe mode to see if that makes any difference in case it is an app issue?

JerryS · ‎13-01-2025

Also have you tried recording through the external mic using voice recorder to see how well that works?

probablephone · ‎13-01-2025

@JerryS wrote:
There are Microphone Amplifier apps available on playstore, could be worth trying one of those to see if they help?

I do not have the access to the phone now, as my friend is using it. I will try when possible (in March). However, I read on the internet that those apps DO NOT work during calls (as this would be a security vulnerability).

@JerryS wrote:
it is worth asking Samsung whether there are any known issues with the Samsung adapters you bought and the A55?

Well, that was my intention asking on the official forum. How should I do this if not here?

@JerryS wrote:
The other thing you could try is booting your phone into safe mode to see if that makes any difference in case it is an app issue?

Will try when possible.

@JerryS wrote:
Also have you tried recording through the external mic using voice recorder to see how well that works?

Yes, tried that. It works as terribly bad as in calls.

JerryS · ‎13-01-2025

This is basically a user to user help and discussion forum but you can send feedback to Samsung through the support tab or have an online chat with them. The other option might be to take the phone, adapters and earphones to a Samsung experience store. You can find your nearest one also from the support tab.