>> >> 2. I also have a problem with sound distortions (mostly much higher >> >> and "quicker" voice) several seconds after loading the >> >> loopback-module (source is a bluetooth-headset and sink is my >> >> soundcard). After some seconds the distortions disappear and >> >> everything is fine. I found out that reducing the adjust_time >> >> parameter of the loopback-module (I had to add adjust_time to >> >> valid_modargs in the source code) also reduces the duration of the >> >> distortions, but even at adjust_time=1 they remain for about 2 >> >> seconds (and pulseaudio uses much more CPU). Setting it to 0 doesn't >> >> work at all. >> > >> >Sounds as if there is something wrong with the device speed. which >> >causes PA to compensate by resampling things. >> >> So would it be possible to fix this? Do you need more info/some logs? > > Uh. this is tricky to fix. Not sure I can tell you anything that could > fix this quickly for you. Somebody has to sit down with the hardware > and really figure out what is going on, this is not really feasible > remotely. It could be that the initial variations of sample rate are too high, and that causes audio issues with the resampling. This module estimates the input and output sample rates, and I have seen in some logs that the estimates can be somewhat off initially, e.g. 53kHz instead of 48kHz. Can you provide a log of sample rate estimates? This would help validate my theory. Thanks - Pierre
