Pine Phone Pro audio on phone calls: discussion, support and tips

[fxc]

1/ My 1st experience was - issue with calls on 4G / Lte .  -> I forced phone to 3G only -> this has helped for connection to be established
2/ i noticed voice was low on regular call , but switching to loudspeaker  mode and then switching off loudspeaker mode was fixing  normal call audio
3/ Then for the quality of the audio (low internal mic sensitivity/gain , low internal speaker, low loudspeaker sound ) you can modify some mic gain , volume parameters in following files (i suggest to make a backup of originals
/usr/share/alsa/ucm2/PinePhonePro/ HiFi.conf    [media playback profile  settings]
/usr/share/alsa/ucm2/PinePhonePro/VoiceCall.conf  [phone call profile setting]
microphone volume setting:
# Set capture volume to 0dB so modem audio doesn't overdrive the ADC
cset "name='ADC Capture Volume' 60"
cset "name='Mono ADC Capture Volume' 99"
speaker volume setting
# Limit amplification factor of earpiece amplifier so sound stays clear
cset "name='Class D SPK Ratio Control' 2.20x"
with above setting Phone call in normal mode works fine for me , but loudspeaker mode is not usable .

hi, any other suggestions for fixing loud (like white noise) whilst talking in a call?  I've followed these without an improvement. My voice sounds as I am in a rave but I am only inside my hole.

• https://github.com/the-modem-distro/pinephone_modem_sdk
  
• https://github.com/the-modem-distro/pine...ETTINGS.md
  
• https://github.com/the-modem-distro/pine...sdk/issues
  

Thank you, I have already installed Biktorgj's firmware and changed the config file as below. No improvement:

If microphone audio is too loud during phone calls ( distorted audio and lots of background noise from your side )
Then change the default value from 8 to 3 ( YMMV you may need to go a bit higher or lower, but 8 is way too much in my testing ).

I changed also

cset "name='Class D SPK Ratio Control' 2.20x"
cset "name='ADC Capture Volume' 60"
cset "name='Mono ADC Capture Volume' 99"

Also no improvement. Probably I am doing something wrong.

Would suggest to open a bug report in the third link, if there is none there already. The FOSS firmware also has its own Matrix channel to discuss the issue but a bug report should be the priority IMO.