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Old 04-22-2007, 12:13 PM   #1
dahouse
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Registered: Apr 2007
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Where to Find a Guide to Realtime Kernel for Low Latency Audio in Ubuntu?


I haven't been able to find any good documentation on configuring a real time kernel for pro audio in Ubuntu.

I wanna use pure data for live looping performances while using some soft synths and what not and so far, Jack says my latency is 40ms. That's not good enough and I know it can improve.

Thanks
 
Old 04-23-2007, 11:21 PM   #2
Patrick K
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Registered: Apr 2007
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I'm interested, too.

Using Jack, Hydrogen, and Ardour I got my latency down to 11.6ms (frames 512, sample rate 88,200, M-Audio card). You can run Jack in real time but you may need to gksu to get it. That's what I do for Hydrogen, but I rather not run as root for these apps.

Here is some info on a zero latency kernel https://wiki.ubuntu.com/RealTime

I saw some other info but can't locate it right now. I recall it involved recompiling the kernel with the Linux Security Module (LSM). This allows real time access without being root. It looked more complicated than my experience is ready for.
 
  


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