Lowest possible latency

Moderator: flatmax

flatmax
Posts: 609
Joined: Sat Jul 23, 2016 11:39 pm

Re: Lowest possible latency

Post by flatmax » Sat Feb 10, 2018 3:14 pm

Out of interest - with your real time kernel - how many frames @ what fs is the lowest you have been able to use ?

Matt
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robiwan
Posts: 59
Joined: Wed Jul 05, 2017 1:18 am

Re: Lowest possible latency

Post by robiwan » Sat Feb 10, 2018 7:10 pm

Just tested fs 96000 Hz with 32 frames which gives ~50% CPU to just shuffle audio from input to output, but I expect the total latency to be below 1 ms, or just there about. For my application 48K is enough, and 64 frames gives ~10% CPU which is a reasonable CPU/latency compromise.

guysoft
Posts: 10
Joined: Thu Dec 21, 2017 9:55 pm

Re: Lowest possible latency

Post by guysoft » Thu Feb 15, 2018 2:13 am

guysoft wrote:
Wed Jan 31, 2018 10:26 pm
Wha!
Thanks for that!
It's really hard finding all those small tips.
I'm playing also with the zynthian installation script found here. When I have something decent i'll publish and update here.
Hey,
So I kinda got sucked in to building Zynthian a new distro. But it technically comes with a web interface that lets you set up the audio injector, and jack. So perhaps we can merge those projects together.
See https://github.com/guysoft/ZynthianOS

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