I use ladspa plugins to increase the volume of low frequencies (more bass for usual headphones). The result of the applied low pass filters is merged with the default output with specified volume ratios using module-loopback. Here's the activation script: https://pastebin.com/kGU3Fnd2 However, when I close my laptop, wait a bit, and then open it again, it becomes broken. Either a huge latency (about a second) appears (this happens the most times) or pulseaudio uses 100% CPU and no sound is hearable (e.g. when playing something with audacious). The problem happens with the loopback and the combine-sink modules, I've tried both. Here are log messages from when it used 100% CPU: https://pastebin.com/raw/3B0R1ugr I also now and then get latency offsets between the default and lowpass output, it happens especially when watching youtube videos and playing music at soundcloud.com (tested with firefox and chromium). Also, sometimes when disabling or enabling network connection I can hear a cracking noise. I'm using the latest pulseaudio master. When I used an older pulseaudio, the problem also appeared.
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