I'm observing strange audio artefacts with my audio driver which seem to be related to audio material overamplification. IOW, the effect is only audible at waveform peaks. When I attenuate the playback volume pavucontrol, things get a lot worse - horrible distortion all over the place, even in more quite audio sections. Also, when comparing the audio output of 'aplay -Dpulse foo.wav' with 'aplay -Dplughw foo.wav', it is clearly audible that PA adds some kind of amplification to the material (I would guess ~3dB), even though all GUI accessible levels are set to 100%. The driver I'm working on does not have any volume control features, hence this must be done in software. Has that been encountered before? Thanks, Daniel
