hi all, Is possible in future to "pjmedia_aud_param" structure add parameter for "ec_options" ? Because when sound device is open always is call method in sound_port.c start_sound_device() and there is call pjmedia_snd_port_set_ec(snd_port, pool, snd_port->aud_param.ec_tail_ms, 0); with zero options parameter. When application set different algorithm with pjsua_set_ec() this algorithm is not accepted. But in manual is: If the sound device is currently active, and if the device supports AEC, this function will forward the change request to the device and it will be up to the device on whether support the request. If software AEC is being used (the software EC will be used if the device does not support AEC), this function will change the software EC settings. In all cases, the setting will be saved for future opening of the sound device. Setting is saved but is not used. regard
