Thread: USB latency
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Old 08-27-2022, 12:03 PM
Darryl Ramm Darryl Ramm is online now
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Default Re: USB latency

Quote:
Originally Posted by Dale-c View Post
I have looked but I hadn't been able to find good specs.

It would seem that USB with the latency of firewire would be ideal now. I just picked up a firewire only MOTU Ultralite. I like it so far for $80 and, again, drivers are important. I have it running on my regular system with Catalina as well as my Pro Tools partition.
Nit sure why Google did not turn it up, but the main latency database out there that folks refer to is results from DAWBench. People involved in that know what they are doing. Many other commentators on latency related stuff do not.

https://dawbench.com

and a widely used other link to Dawbench is https://gearspace.com/board/music-co...data-base.html Look for the link to the DAWbench PDF doc on that page, that link is kept up to date.

I don't see your interface reported in those results. But notice for what is reported that a Motu USB interfaces have lower RTL than the 828 Mk III Firewire interface. The devil us very much in the details with anything involving latency, watch out for ******** like "USB can't do low latency" or "you need thunderbolt" etc. Driver versions matter, OS versions can matter, many driver settings can matter, DAW version and setting matter, etc.

And note DAWbench uses (modest) workloads that the system runs while measuring latency, focus has historically been on Reaper. But importantly it's not a no-load latency measurement.

Much of the problem with latency masturbation on forums... it's not what somebody else can achieve in a theoretical world but what matters is what IO Buffer setting can you achieve for your DAW and computer and workload, since IO Buffer size will often dominate latencies.

You can use the same RTL Tool to measure latency used by DAWBench: https://oblique-audio.com/rtl-utility.php and see how you are doing for your setup vs. others. Dale - since you raised the whole latency concern, please do measure what you have and share here.

(want even more detailed breakdown of CoreAudio latency components I have a utility).

Last edited by Darryl Ramm; 08-27-2022 at 03:50 PM.
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