Lennart Poettering has an interesting discussion on JACK vs. PulseAudio, “PulseAudio and Jack“. I like his table of comparison: Consumer Audio (i.e. PulseAudio) Pro Audio (i.e. Jack) Reducing power usage is a defining requirement, most systems are battery powered (Laptops, Cell Phones). Power usage usually not an issue, power comes out of the wall. Must [...]