Getting to 64k speed in OSX on a macbook?

[galactron]

I built openlase for OSX and am using jackd/jackdmp from "jackosx.com".  the fastest rate I can start jackd is 48000Hz.  The jack documentation says it will only allow rates supported by the input and output devices. "Built in Microphone" and "Built In Output" are what are selected by default in the JackPilot GUI interface.  Any ideas on how I might modify this parameter?  I can use the jackd command to try to start the server with a different rate: "jackd -R -d coreaudio -r 60000" but this results in an error saying something like the device doesn't support that frequency  My galvos are rated to 60k, so I'd like to max them out and see if I can increase my refresh rate.

[Macpod]

You can use the dummy backend (-d dummy) which will free you from being tied to an actual system. This is how I run mine.

Hope that helps!