On Fri, 2016-01-29 at 13:32 +0000, Samiran Sarkar wrote: > Thanks Tanu , really appreciated for your support > > 1. pactl set-card-profile bluez_card.F8_32_E4_FB_FD_28  headset_audio_gateway > then > Loop back is like this > 2. pacmd load-module module-loopback source=bluez_source.F8_32_E4_FB_FD_28 sink=alsa_output.usb-Jabra_Jabra_UC_VOICE_150_duo_000000000000-00-duo.analog-stereo > > But I can listen in the headphone speaker whatever I 'm speaking over MIC  ( it seems loop back within the device) Maybe the module-loopback source output got moved from the bluez source to the alsa source for some reason? You can verify what streams are connected to what devices with "pactl list", and prevent unwanted source output moves from happening by giving parameter "source_dont_move=true" to module-loopback ("sink_dont_move" exists too, which will prevent the sink input from moving from the initial sink to somewhere else). -- Tanu