On Thu, 12 May 2016, at 01:41 AM, Caio wrote: > Hello! > > I'm working with a embedded linux and I'm using gstreamer to talk with > other board (voice call). > > To test and evaluate my project I'm using the IMX6SABRE Dual Lite Board > ( > http://www.nxp.com/products/microcontrollers-and-processors/arm-processors/i.mx-applications-processors/i.mx-6-processors/i.mx6qp/sabre-board-for-smart-devices-reference-design-based-on-the-i.mx-6-series:RDIMX6SABREBRD > ) > > have the pulseaudio , speex and webrtc installed in my oard, but with > my > tests I didn't have success with echo cancellation > > In my testbed I'm using two boards in different rooms, each board has the > same softwares, to test the voice call I'm using a script with gstreamer. > > There's some method to test and evaluate the echo cancellation in > embedded > environment? Someone has an advice? > > I'm loading the module-echo-cancel using this command > > pactl load-module module-echo-cancel source_name=echosource > sink_name=echosink aec_method=webrtc sink_master=mastersink > source_master=mastersource > > (I change the webrtc to speex in other tests) > > The Gstreamer Script (usage ./gstreamer-call.sh ip start) > > #!/bin/sh > IPDEST=$1 > > case "$2" in > start) > echo "Starting gstlaunch" > gst-launch-1.0 -v \ > pulsesrc device="echosource" \ > ! alawenc ! rtppcmapay ! udpsink port=4000 > host=$IPDEST > & > gst-launch-1.0 -v udpsrc > caps="application/x-rtp,media=(string)audio,clock-rate=(int)8000,encoding-name=(string)PCMA" > port=4000 ! \ > rtppcmadepay ! alawdec ! audioconvert ! > audioresample ! \ > pulsesink device="echosink" \ > & This script should work. Can you describe what is failing? And can you attach PA server logs as well? I usually test with something like: PULSE_PROP="filter.want=echo-cancel" \ gst-launch-1.0 filesrc location=some-voice-file.wav ! wavparse ! pulsesink \ pulsesrc ! wavenc ! filesink location=cancelled.wav -- Arun
