I have 4 linux machines on my local network using pulse audio. All of which are running pulseaudio 0.9.8. Each has rtp-send and rtp-recv installed. By default, each rtp-send is muted. Question #1: rtp-send mute When rtp-send is muted, I expect that no rtp traffic will be sent. Is this a correct assumption? This doesn't appear true, and I am surprised by this. I have one machine with a combined-sink, with one out being rtp-send. When playing any audio to this combined-sink, I get a constant stream of network bandwidth on the order of 192K bytes/second. When I stop the audio, the network bandwidth goes down into the noise level. The default.pa for this machine is: This machine is a server which runs with --system mode. load-sample-lazy pulse-hotplug /usr/share/sounds/startup3.wav load-module module-hal-detect load-module module-cli-protocol-tcp load-module module-http-protocol-tcp load-module module-esound-protocol-unix load-module module-native-protocol-unix auth-anonymous=1 load-module module-native-protocol-tcp auth-anonymous=1 load-module module-zeroconf-publish load-module module-null-sink sink_name=sphinx_record description="Sphinx Recording Source" load-module module-null-sink sink_name=sphinx_playback description="Sphinx Playback Source" load-module module-rtp-recv load-module module-null-sink sink_name=rtp format=s16le channels=2 rate=44100 description="RTP Multicast Sink" load-module module-rtp-send source=rtp.monitor load-module module-combine sink_name=combined master=alsa_output.pci_1274_5880_alsa_playback_0 slaves=alsa_output.pci_8086_24d5_alsa_playback_0,rtp,sphinx_playback load-module module-volume-restore load-module module-default-device-restore load-module module-rescue-streams load-module module-suspend-on-idle load-module module-gconf set-default-sink combined set-default-source alsa_input.pci_1274_5880_alsa_capture_0 set-sink-mute rtp 1 Question #2: one machine acts different One machine appears to be sending rtp traffic when rtp-send is included., even when no audio is playing. When this one machine has rtp-send installed, and muted, and no audio is plaing, I see a constant stream of network traffic on the order of 192K bytes/second. This machine is a standard desktop which doesn't run with --system What could be causing this condition, independent of question #1 above? I have confirmed that no streams are playing on this machine, but yet, I see the 192K bytes of traffic. The traffic comes and goes as a function of including rtp-send on this machine. The default.pa for this machine is: load-sample-lazy pulse-hotplug /usr/share/sounds/startup3.wav load-module module-hal-detect load-module module-esound-protocol-unix load-module module-native-protocol-unix auth-anonymous=1 load-module module-native-protocol-tcp auth-anonymous=1 load-module module-http-protocol-tcp load-module module-zeroconf-publish load-module module-null-sink sink_name=rtp format=s16le channels=2 rate=44100 description="RTP Multicast Sink" load-module module-rtp-send source=rtp.monitor load-module module-rtp-recv load-module module-volume-restore load-module module-default-device-restore load-module module-rescue-streams load-module module-suspend-on-idle load-module module-x11-publish load-module module-gconf set-sink-mute rtp 1 Thanks for any insight. Jim
