124351 2013-11-14 07:17:02 -0800 [GStreamer] Not possible to play more than 32 simultaneous audio stream due to a limitation in PulseAudio 2020-10-29 10:03:30 -0700 1 1 1 Unclassified WebKit WebKitGTK 528+ (Nightly build) Unspecified Unspecified RESOLVED FIXED P2 Normal --- 124353 1 agomez webkit-unassigned agomez andrunko bugs-noreply calvaris pnormand slomo oldest_to_newest 950637 0 agomez 2013-11-14 07:17:02 -0800 As it is explained in bug 85994 comment 33 , autoaudiosink will often use pulsesink. When opening a web in which more than 32 simultaneous audio streams are created, we will hit a limit in PulseAudio. It is expected that PA 5.0 will increase the limit to 256. This will not solve the issue completely, but the situation would be better. This bug has been opened to track this problem and should block bug 85994. 950644 1 agomez 2013-11-14 07:28:25 -0800 Changing, to block 124353 , as it is a meta bug. 987166 2 pnormand 2014-03-05 00:20:59 -0800 Increasing this limit is just a workaround though :( I keep wondering if we should investigate building our own audio-sink that would maintain a single connection with PA, whatever the number of media elements present in the page... 1053687 3 pnormand 2014-12-09 00:54:35 -0800 Sebastian suggested to have one pipeline for audio playback maintaining a single connection to PA and then for each playbin pipeline set the audio-sink to connect to the audio playback pipeline using the "inter" elements. 1053688 4 pnormand 2014-12-09 00:55:25 -0800 The playback pipeline would also have an audiomixer to combine all incoming audio streams to one, IIUC. 1702685 5 pnormand 2020-10-29 05:55:06 -0700 (In reply to Philippe Normand from comment #3) > Sebastian suggested to have one pipeline for audio playback maintaining a > single connection to PA and then for each playbin pipeline set the > audio-sink to connect to the audio playback pipeline using the "inter" > elements. This was done in https://bugs.webkit.org/show_bug.cgi?id=207634 BTW. (In reply to Philippe Normand from comment #4) > The playback pipeline would also have an audiomixer to combine all incoming > audio streams to one, IIUC. Same. To enable the mixer, set WEBKIT_GST_ENABLE_AUDIO_MIXER=1 at runtime.