DP 8.01 half-second-long latency in spite of 128 buffer

[terbarino]

Hi Y'all,
So in DP 8.01, whether in 64-bit mode or 32-bit on my macbook pro in lion I'm getting literally latency of about a half-second in spite of a buffer setting of only 128, which screams along with no problems in dp 7.24.
My plugins are all updated and 64-bit (Vienna Ensemble Pro & BFD 2.3) but this doesn't seem to make any difference.
It doesn't matter which audio interface of mine I use, or even if I use the built in sound card.
I've repaired permissions, trashed preferences, re-installed plugins, to no avail.
An ideas?

[James Steele]

Just what are the symptoms? What are you doing and what sort of signal is being delayed by a half second? There's a wide gap between 128 samples and 500 milliseconds, which leads me to believe this has nothing to do with your buffer setting. We just need a better description of the problem.

[Shooshie]

Some plugins have a latency which is predetermined and set by the developer. This is typical of "look-ahead" plugins which are analyzing the upcoming audio and applying special processing to it. If several plugins with look-ahead latency were connected in sequence, it might extend the latency even further; I'm not sure if it would work that way or not. They might process in parallel even if they are in series.

In any case, you might try a blank mix and see what kind of latency you get then.

Shooshie

[cuttime]

Is pre-rendering on?

[toodamnhip]

Especially look for plug ins on master buses or aux busses that are final summing busses.
For a test, I make sure you had no plug ins in the session at all , just to test. Then turn one on at a time until you get latency.

No mater how my system is set, if I have iZoptope Ozone 5 on the master bus, I will have latency.
It is IMPOSSIBLE for a computer to compensate for the final audio bus summing any signal chain.

[Dan Worley]

No mater how my system is set, if I have iZoptope Ozone 5 on the master bus, I will have latency.
It is IMPOSSIBLE for a computer to compensate for the final audio bus summing any signal chain.

Yeah, good information. That trips me up often. I just forget I have something on the master.

Also, reboot your Mac if you have latency problems for no reason. I have that problem with DP/Mac about once every three months or so.

[toodamnhip]

No mater how my system is set, if I have iZoptope Ozone 5 on the master bus, I will have latency.
It is IMPOSSIBLE for a computer to compensate for the final audio bus summing any signal chain.

Yeah, good information. That trips me up often. I just forget I have something on the master.

Also, reboot your Mac if you have latency problems for no reason. I have that problem with DP/Mac about once every three months or so.

ANother way people get tripped up is that suddenly, the click track that they have will get out of sync with everything. This is again cause by a latency inducing plug in on the master bus, which delays all audio pre master bus, yet the click is going directly to the audio interface outs. So you have latent audio and non-latent click, and boom, out of sync.

[Timeline]

This is again cause by a latency inducing plug in on the master bus, which delays all audio pre master bus, yet the click is going directly to the audio interface outs. So you have latent audio and non-latent click, and boom, out of sync.

You would think at least the click could be locked to the masterbuss lat. and fixed. Geeeze!

Good call there T