Logic Pro 9 setting recording delay



i've been reading on how to set up the "recording delay" parameter in the audio prefs. I only have a 2 output interface so I had to improvise from the current method that I read about. I used the I/O utility and did a ping test, and ended up with a result that seems to line up audibly.

My thoughts now are, I guess I have to run the same test if I flip between buffer sizes. That was at 128 samples, as I am on a MBA and want to leave cpu for plugins. Should I need a less latency affected performance, I guess I'd have to rerun the test and adjust the delay each time....correct?

Next comes midi.... Does this have any bearing on how it records midi? My thoughts are that it isn't all that important anyway, as long as you can tolerate any potential latency during tracking, because its alway easy enough to quantize the performance anyway, no?

Lastly.... where is the freakin' phase reverse switch on the channel strips...I can't find it anywhere and now wonder if its even possible in logic.

Pete Thomas

Staff member
I think theoretically the same recording delay should apply, but this may depend on the interface drivers as opposed to Logic (I found this to be an issue with the early versions of Apogee Ensemble). Now that Apogee have sorted things, it seems to be fine whatever buffer size in Logic. But do repeat the test just to make sure, then you will be confident.

I've never noticed any issues re: MIDI

Phase reverse is there in the gain plugin, maybe others but that's what I use.
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The recording delay is mostly used to make up for the latency that is introduced by the converters which is the same at all times. If you for some reason choose to use different converters you will have to reset the recording delay. It's quite an eyeopener on how much difference there is between converters.
Like Pete Thomas said it can also save some poorly programmed drivers from misplacing the regions but this is not so common (like he also said).
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