There is RTAI/LXRT and RTL, both of which provide
various forms of
kernel and user space hard real time scheduling. Provided you have
compatible drivers (which is no issue when dealing with turn-key
systems), you can basically just use one of those instead of
Linux/lowlatency to cut worst case latency down to the µs range. The
only practical limits are RAM access times (cache misses add to the
scheduling latency) and raw processing power.
i don't think you meet the synthesis capabilities they described even
on a bleeding edge athlon. the voice counts for just the wavetable
synthesis along are amazing, and you can run KARMA, wavetable,
subtractive, organ and one other synthesis method all at the same
time.
its a crock of shit, but its damn fast crock of shit!
--p