PlanetZ forums - scopeusers.com

Hi
Just setiing up the new puter and running some latency tests.
When I play a Click from vst instrument in logic [DROO8] and rout its analog output to an analog input and record it i get a wopping 198 sample latency in the recorded track [ulli on fastest setting].
How can I fix this.
ARE there any settings in SFP OR LOGIC that can do to fix this???

When I play the drum[vst droo8 in logic] from keyboard using luna midi input i get slight but noticeable delay [more than 198 samples obviously]
HOW CAN I FIX???

When i play an audio track [in logic]with a click and rout the output to an input and record it i only get 15 samples latency..this is GOOD but how is it posssible???

Hi,

It's not 100% clear from your post what you actual routing is, but ULLI settings is the incured latency when going once thru ASIO. So if you send something to an ASIO output and back into an ASIO input to Logic, you'll get 2X the 64 samples latency associated to the ASIO drivers, so 128 samples. If it's actual analog outputs and inputs on the A16U, you'll have a bit more than that, since analog -> digital and digital -> analog conversion also add some latency.

The solution to this depends on how you work and what you want to do, but has nothing to do with SFP/Scope hardware (all audio hardware using ASIO will have a minimum of 64 samples of latency each time you go thru ASIO) or Logic (you'll get the same with other audio sequencers too.) If you remain in Logic using VST/VSTI, you can bounce directly in there, and add effects in SFP at mixdown (or turn them off at recording.) When all your tracks are bounced to audio, you can shove them out to an SFP mixer, and they'll remain in-sync even tho going thru ASIO.

This is just one way among many, but you won't escape the all-dreadful Latency with digital audio, it's something you have to learn to work with. I can't remember if PDC (plugin delay compensation) works with XTC in Logic, but that might be one way to work around the latency when recording.

With a bit more info on how you work (where you mix, signal chain, type of signals used, live instruments or outboard synths/hardware boxes, etc) we can probably give you more tips and tricks.

Basicly im using sfp/logic in xtc mode.
My only out board gear is old jx8p synthb and roland drum pad. Both used as midi input only...into luna midi port.
If keyboardist come into studio they bring their own decent keyboard and i put into same input.

ALL Asio "luna zlink A and B source" is directly patched to "ASIO 24bit destination" and "Luna Asio zlink A and B Destination" is patched Directly to "Asio 24 bit source".

"Luna Midi A source" patched directly to "In sequencer midi destination 1" and "Luna Midi A destination" patched directly to "sequencer midi source out"

Luna Analogue source/destination are not used [analog i/o on card]

Just to throw a spanner in the works I am considering ditching my physical mixer thou and using scope mixer [non xtc mode]