Try playing music locally on the headless box and see if that stutters. If that works try playing music over the loop back network.
On Wed, Dec 26, 2018, 12:31 PM David Davidović <da...@davidovic.io wrote: > Hi, > > I'm running a system-wide PulseAudio instance on a headless box connected > to my speaker system. The sink is broadcast via Zeroconf and I use it to > play music and movies via WiFi from my laptop. The headless box is > connected to the WiFi router via a wired connection. > > Unfortunately, every couple of minutes or so, the sound stutters for a > short time, then returns to normal. > > Does anyone have any suggestions as to how to debug the source of these > issues? My best bet is WiFi latency. I tried increasing the buffer size > (via default-fragments and default-fragment-size-msec) on both the client > and server machine but I haven't seen any considerable improvement. The > actual network packets seem to always be around 1.5K in size, which would > be around 4ms of uncompressed sound with 32-bit stereo samples at 44.1kHz, > and that's without any overhead. If my calculation is true, this would > explain the stuttering, as the network latency towards the machine is at a > baseline of ~2ms but can spike sometimes due to nature of WiFi. > > I'd be happy if there was a way to e.g. tell the native-protocol-tcp > module to buffer more of the audio and play it, as I don't mind the > increased latency; I just want to get rid of the stuttering and all > applications I use manage PulseAudio latency compensation quite well. > > Has anyone else had this issue and resolved it? > > Many thanks for your help. > > Best, > -- > David Davidović > da...@davidovic.io > _______________________________________________ > pulseaudio-discuss mailing list > pulseaudio-discuss@lists.freedesktop.org > https://lists.freedesktop.org/mailman/listinfo/pulseaudio-discuss >
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