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

[DominiqueM]

I do not like the idea of modifying in /usr because it is against the spirit of Linux and lost in upgrade. I would like to override only the 47 with 160, say in /etc. Suppose I write something as
SectionVerb {
  EnableSequence [
    # Set capture volume to 0dB so modem audio doesn't overdrive the ADC
    cset "name='ADC Capture Volume' 160"
    cset "name='Mono ADC Capture Volume' 160"
  ]
  DisableSequence [
  ]
  Value {
    TQ "HiFi"
  }
}
1. Will this override only the value 47 or override and break all of PinePhonePro.conf? 2. Where, under what name, in which file under /etc/alsa? (I never did such a thing in my life.)

---

Rules are rules… but I could not wait, so I did
sudo sed -i 's/47/160/g' /usr/share/alsa/ucm2/PinePhonePro/VoiceCall.conf
sudo sed -i 's/47/160/g' /usr/share/alsa/ucm2/PinePhonePro/HiFi.conf
and it works perfectly. Thanks to all the people who ever mentioned 47 and 160.

Some Mobian images (like mobian-pinephonepro-phosh-20230709) give other path: /usr/share/alsa/ucm2/Rockchip/PinePhonePro/
Anyway, I have a new annoying problem for phone calls: not sound at all (not outgoing, not incoming).