Hey all, I'm using the module-echo-cancel using webrtc. I'm having two problems loading the module: 1) I can't figure out how to pass multiple aec_args. When I do $ pactl load-module module-echo-cancel aec_method=webrtc aec_args="mobile=1 comfort_noise=1" I get the following logs: E: [pulseaudio] module-echo-cancel.c: Failed to parse module arguments. E: [pulseaudio] module.c: Failed to load module "module-echo-cancel" (argument:"aec_method=webrtc aec_args=mobile=1 comfort_noise=1"): initialization failed. It seems pactl strips away the quotation marks around the arguments? Both arguments are recognized if I only supply them separately, so I know they are correct. 2) pactl load-module seems to ignore format, rate and channels arguments. When I execute $ pactl load-module module-echo-cancel aec_method=webrtc source_name=echo_cancel_source sink_name=echo_cancel_sink format=s16le rate=44100 channels=2 The module loads successfully. But when I check the sinks and sources, my sources are not stereo or 44,1 kHz. The sample rate isn't really an issue, but I have to use stereo AEC. 4 echo_cancel_source module-echo-cancel.c float32le 2ch 32000Hz SUSPENDED 5 echo_cancel_sink.monitor module-echo-cancel.c float32le 1ch 32000Hz SUSPENDED 2 echo_cancel_sink module-echo-cancel.c float32le 1ch 32000Hz SUSPENDED And I get the following log: I: [pulseaudio] module-echo-cancel.c: Using AEC engine: webrtc I: [pulseaudio] module-echo-cancel.c: Sample rates of play and out stream differ. Adjusting rate of play stream. I: [pulseaudio] source.c: Created source 4 "echo_cancel_source" with sample spec float32le 2ch 32000Hz and channel map front-left,front-right I: [pulseaudio] source.c: device.master_device = "alsa_input.usb-Burr-Brown_from_TI_USB_Audio_CODEC-00.analog-stereo" I: [pulseaudio] source.c: device.class = "filter" I: [pulseaudio] source.c: device.intended_roles = "phone" I: [pulseaudio] source.c: device.description = "USB Audio CODEC Analog Stereo (echo cancelled with USB Audio CODEC Analog Stereo)" I: [pulseaudio] source.c: device.icon_name = "audio-input-microphone" I: [pulseaudio] sink.c: Created sink 2 "echo_cancel_sink" with sample spec float32le 1ch 32000Hz and channel map mono I: [pulseaudio] sink.c: device.master_device = "alsa_output.usb-Burr-Brown_from_TI_USB_Audio_CODEC-00.analog-stereo" I: [pulseaudio] sink.c: device.class = "filter" I: [pulseaudio] sink.c: device.intended_roles = "phone" I: [pulseaudio] sink.c: device.description = "USB Audio CODEC Analog Stereo (echo cancelled with USB Audio CODEC Analog Stereo)" I: [pulseaudio] sink.c: device.icon_name = "audio-card" I: [pulseaudio] source.c: Created source 5 "echo_cancel_sink.monitor" with sample spec float32le 1ch 32000Hz and channel map mono I: [pulseaudio] source.c: device.description = "Monitor of USB Audio CODEC Analog Stereo (echo cancelled with USB Audio CODEC Analog Stereo)" I: [pulseaudio] source.c: device.class = "monitor" I: [pulseaudio] source.c: device.icon_name = "audio-input-microphone" I: [pulseaudio] source-output.c: Trying to change sample rate I: [pulseaudio] alsa-source.c: Updating rate for device front:1, new rate is 48000 I: [pulseaudio] source.c: Changed sampling rate successfully I: [pulseaudio] source-output.c: Rate changed to 48000 Hz I: [alsa-source-USB Audio] alsa-source.c: Trying resume... I: [alsa-source-USB Audio] alsa-source.c: Resumed successfully... I: [alsa-source-USB Audio] alsa-source.c: Starting capture. I: [pulseaudio] source-output.c: Created output 1 "Echo-Cancel Source Stream" on alsa_input.usb-Burr-Brown_from_TI_USB_Audio_CODEC-00.analog-stereo with sample spec float32le 2ch 32000Hz and channel map front-left,front-right I: [pulseaudio] source-output.c: media.name = "Echo-Cancel Source Stream" I: [pulseaudio] source-output.c: media.role = "filter" I: [pulseaudio] source-output.c: module-stream-restore.id = "source-output-by-media-role:filter" I: [alsa-sink-USB Audio] alsa-sink.c: Trying resume... I: [alsa-sink-USB Audio] alsa-sink.c: Resumed successfully... I: [alsa-sink-USB Audio] alsa-sink.c: Starting playback. I: [pulseaudio] resampler.c: Resampler 'ffmpeg' cannot do variable rate, reverting to resampler 'auto'. I: [pulseaudio] remap_neon.c: Using ARM NEON mono to stereo remapping I: [pulseaudio] speex.c: Choosing speex quality setting 1. I: [pulseaudio] sink-input.c: Created input 2 "Echo-Cancel Sink Stream" on alsa_output.usb-Burr-Brown_from_TI_USB_Audio_CODEC-00.analog-stereo with sample spec float32le 1ch 32000Hz and channel map mono I: [pulseaudio] sink-input.c: media.name = "Echo-Cancel Sink Stream" I: [pulseaudio] sink-input.c: media.role = "filter" I: [pulseaudio] sink-input.c: module-stream-restore.id = "sink-input-by-media-role:filter" I: [pulseaudio] module.c: Loaded "module-echo-cancel" (index: #19; argument: "aec_method=webrtc source_name=echo_cancel_source sink_name=echo_cancel_sink format=s16le rate=44100 channels=2"). E: [alsa-source-USB Audio] module-echo-cancel.c: Doing resync E: [alsa-source-USB Audio] module-echo-cancel.c: Playback too far ahead (96683), drop source 24744 Do you have any idea what causes this? All the best, Koenraad -------------- next part -------------- An HTML attachment was scrubbed... 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