To rise sound quality of PulseAudio (default sound engine on Gnome) to a high level :
In /etc/pulse/daemon.conf :
resample-method = src-sinc-best-quality high-priority = yes default-sample-channels = 2 default-sample-format = float32le default-sample-rate = 48000 default-fragments = 8 default-fragment-size-msec = 5
Then kill pulseaudio (it will respawn by itself) :
pulseaudio -kCelogeek !
