Well, it is clear that I have to do something different than pure Jack/ALSA. I'll try Pulse, although Pulse's reputation for low latency isn't exactly stellar. What should my asound.conf (.asoundrc) look like, to route all ALSA apps' output through Pulse?Anyone here have perhaps some more hints to get alsa route its output to jackd?Yes, you use pulseaudio, which can exit through JACK. The ALSA JACK plugin has a very bad reputation and has never really worked great. Pulseaudio will then show up as a JACK client so all your ALSA apps will transmit to pulseaudio, which then exits in JACK land.