> Script: > #!/usr/bin/pulseaudio -vvvnF > load-module module-alsa-sink device=default:CARD=Live sink_name=output > rate=48000 > load-module module-bluetooth-device address="XX:XX:XX:XX:XX:XX" > path="/org/bluez/1662/hci0/dev_XX_XX_XX_XX_XX_XX" profile="a2dp_source" > auto_connect=yes name=input rate=44100 > load-module module-loopback source=1 sink=0 rate=44100 It's not clear to me why you have two different rates. If you know the incoming rate is 44.1kHz you could avoid resampling. I think we also have a fundamental issue with the way the incoming frequency is calculated in PulseAudio using latency estimates. I ran a set of similar tests a while back with RTP streaming and the sampling frequency estimated with the latency estimates varied wildly, by as much as 10kHz. I had a patch to prevent variations of more than 1% (which is already a lot), but that wasn't enough to remove all frequency shifts introduced by the resampler. We need to have some kind of long-term smoothing of these variations, adjusting the sampling frequency with such variations isn't going to work. > Partial output: > I: main.c: Daemon startup complete. > I: module-loopback.c: Loopback overall latency is 100.04 ms + 0.00 ms + > 39.51 ms = 139.55 ms > I: module-loopback.c: Should buffer 35280 bytes, buffered at minimum 0 bytes > I: module-loopback.c: Old rate 44100 Hz, new rate 43218 Hz > D: bluetooth-util.c: dbus: interface=org.bluez.AudioSource, > path=/org/bluez/1662/hci0/dev_64_B9_E8_19_DD_FA, member=PropertyChanged > D: module-bluetooth-device.c: dbus: interface=org.bluez.AudioSource, > path=/org/bluez/1662/hci0/dev_64_B9_E8_19_DD_FA, member=PropertyChanged > D: bluetooth-util.c: dbus: interface=org.bluez.AudioSource, > path=/org/bluez/1662/hci0/dev_64_B9_E8_19_DD_FA, member=PropertyChanged > D: module-bluetooth-device.c: dbus: interface=org.bluez.AudioSource, > path=/org/bluez/1662/hci0/dev_64_B9_E8_19_DD_FA, member=PropertyChanged > I: main.c: Got signal SIGUSR2. > I: module.c: Loaded "module-cli-protocol-unix" (index: #3; argument: ""). > I: module-loopback.c: Loopback overall latency is 99.98 ms + 0.00 ms + 39.51 > ms = 139.49 ms > I: module-loopback.c: Should buffer 34576 bytes, buffered at minimum 0 bytes > I: module-loopback.c: Old rate 43218 Hz, new rate 43236 Hz > I: client.c: Created 0 "UNIX socket client" > D: bluetooth-util.c: dbus: interface=org.bluez.AudioSource, > path=/org/bluez/1662/hci0/dev_64_B9_E8_19_DD_FA, member=PropertyChanged > D: module-bluetooth-device.c: dbus: interface=org.bluez.AudioSource, > path=/org/bluez/1662/hci0/dev_64_B9_E8_19_DD_FA, member=PropertyChanged > I: module-loopback.c: Loopback overall latency is 99.99 ms + 400.66 ms + > 42.02 ms = 542.67 ms > I: module-loopback.c: Should buffer 34592 bytes, buffered at minimum 2560 > bytes > I: module-loopback.c: Old rate 43236 Hz, new rate 43300 Hz > I: module-loopback.c: Loopback overall latency is 99.98 ms + 806.05 ms + > 39.69 ms = 945.71 ms > I: module-loopback.c: Should buffer 34640 bytes, buffered at minimum 69240 > bytes > I: module-loopback.c: Old rate 43300 Hz, new rate 44965 Hz > I: module-loopback.c: Loopback overall latency is 99.98 ms + 781.78 ms + > 40.83 ms = 922.60 ms > I: module-loopback.c: Should buffer 35976 bytes, buffered at minimum 134708 > bytes > I: module-loopback.c: Old rate 44965 Hz, new rate 46568 Hz > I: module-loopback.c: Loopback overall latency is 99.98 ms + 429.80 ms + > 40.62 ms = 570.40 ms > I: module-loopback.c: Should buffer 37256 bytes, buffered at minimum 79028 > bytes > I: module-loopback.c: Old rate 46568 Hz, new rate 45144 Hz > I: module-loopback.c: Loopback overall latency is 100.00 ms + 409.27 ms + > 41.85 ms = 551.11 ms > I: module-loopback.c: Should buffer 36120 bytes, buffered at minimum 73904 > bytes > I: module-loopback.c: Old rate 45144 Hz, new rate 45044 Hz > I: main.c: Daemon shutdown initiated. > > Thanks in advance > > Alex > > alex at apics.co.uk > > Homer Simpson: Facts are meaningless. You could use facts to prove anything > that's even remotely true! > _______________________________________________ > pulseaudio-discuss mailing list > pulseaudio-discuss at mail.0pointer.de > https://tango.0pointer.de/mailman/listinfo/pulseaudio-discuss > >
