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Pro-DS Latency Compensation

Hello,

I have been playing around with Pro-DS a bit over the last week and I think I've either found a bug or am about to demonstrate a lack of knowledge/understanding on my part :-)

With look ahead enabled all audio being routed through Pro-DS is delayed by the lookahead amount and this is not compensated for by the DAW.

I have tested this on Logic 9.1.7 and Cubase 6.5 and can reproduce this behaviour on both workstations.

Thoughts?

Best from Berlin,
Leigh

Leigh Clark — Jan 29, 2013

Hi Leigh,

Thanks for reporting this issue. Pro-DS should reports its latency properly to the host, and we've tested this in Logic Pro and Cubase as well and didn't experience any problems?

Pro-DS can change its latency dynamically, for example when you enable/disable lookahead. Some hosts (like Logic Pro) do not react to this change right away, and only update latency compensation after a start/stop of the sequencer. Could that be the problem you're experiencing?

If not, have you double-checked that latency-compensation is actually enabled in both Logic Pro and Cubase?

Cheers,

Floris (FabFIlter) — Jan 29, 2013

Thanks for the reply. Thought I would quickly retest this, here's my results:

Cubase 6.5.x 32bit, Windows 7 64bit - Works fine. I tried repeatedly turning look-ahead on and off and adjusting the look ahead, no loss of "synchronisation".

Cubase 6.5.x 32bit, OSX - Also works fine, methodology as above.

Logic Pro 32bit, OSX - Does not work while playing back like it does in Cubase, but as you mentioned below stop-start works fine.

I am not sure why I thought that it was not working in Cubase before, perhaps I just imagined that I tested it... :(

My apologies for wasting your time on this :(

Cheers,
Leigh

Leigh Clark — Jan 29, 2013

Hi Leigh,

No problem! Thanks for letting us know :-)

Cheers,

Floris (FabFIlter) — Jan 30, 2013

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