On 19/09/17 23:55, pulseaudio-discuss-request at lists.freedesktop.org wrote: >> I'm trying to work out how to control latency with pulseaudio CLI scripts. >> >> We're finding that latency varies between a few seconds to about 80 seconds. >> >> We have a system which uses a dedicated embedded board for many channels >> of audio I/O. Workstations >> connect with the I/O board using RTP over a network. >> >> Pulseaudio 8.0 is used on both I/O board and workstation platforms, both >> using pulseaudio CLI scripts. >> Modules explicitly loaded include instances of module-rtp-send, >> module-rtp-recv, module-null-sink, >> module-remap-source, module-remap-sink and module-loopback. >> >> This all works as far as it goes, but with VoIP (using 1 channel in each >> direction), we're finding >> that the latencies make it pretty much unusable. Ideally, I need to be >> able to put a reasonable >> upper limit on total latency. >> >> The link >> https://www.freedesktop.org/wiki/Software/PulseAudio/Documentation/Developer/Clients/LatencyControl/ >> provides instructions for use with the API, but I can't find much about >> controlling latency with CLI. >> A few modules appear to have latency-related parameters I can tweak, but >> this seems to be pointless >> because other modules are adding latency that I haven't worked out how >> to control. >> >> Is there any way to do this? > If you're seeing 80 second latencies, I think the only place in which > that amount could accumulate is module-loopback. PulseAudio 11.0 has a > big improvement in the module-loopback latency regulation, so I > recommend upgrading. Thank you Tanu.  I will give PulseAudio 11.0 a try.
