fp6-img/aports/device/soc-fairphone-fp6-audio/50-echo-cancel.conf
Jorijn van der Graaf 30f2778fc4 audio: select the pipewire backend explicitly and ban the pulse one
Full-system audit findings: without an explicit provider selection the
image installed real PulseAudio (Plasma Mobile hard-path), which claims
the card and ships a wireplumber fragment disabling hardware.audio -
zero sinks forever. Mirror the dev phone's world: pipewire backend meta
+ pipewire-pulse + echo-cancel in extra_packages, pulse meta banned via
apk conflict in fp6-device-tweaks. The two hand-made /etc audio
fragments (wireplumber no-ACP rule, AEC pair for VoLTE speakerphone)
move into soc-fairphone-fp6-audio.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-08-09 00:32:11 +02:00

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# Acoustic echo cancellation for VoLTE speakerphone calls (journal/ims.md s43).
# Creates a virtual pair: ec_sink (play here; forwarded to the speakers and
# used as the AEC reference) and ec_source (mic with the speaker signal
# subtracted, WebRTC AEC). capture/playback are pinned to the hardware nodes
# so making ec_* the defaults cannot loop the module into itself.
context.modules = [
{ name = libpipewire-module-echo-cancel
args = {
library.name = aec/libspa-aec-webrtc
source.props = {
node.name = "ec_source"
node.description = "Echo-cancelled microphone"
}
sink.props = {
node.name = "ec_sink"
node.description = "Echo-cancelled speakers"
}
capture.props = {
node.name = "ec_capture"
target.object = "alsa_input.platform-sound.capture.1.0"
node.passive = true
}
playback.props = {
node.name = "ec_playback"
target.object = "alsa_output.platform-sound.playback.0.0"
node.passive = true
}
}
}
]