I've always done it by recording 2 tracks.Axe-Fx III / Logic Pro:
Are you using Recording Delay in Prefs: Audio? I get the best timing with a setting of -128 samples, but I arrived at this by ear rather than precise measurement.
Please discuss.
This is when using the Axe-Fx III as an audio interface.is this via USB or Interface
I've always done it by recording 2 tracks.
Observe the misaligned tracks.
Zoom in a lot to find the transients at the beginning of the two tracks.
Change from bars/measures to samples in the transport
place the cursor on the transient of each track and subtract in samples.
Sample accurate old school manual method.
Im dead on at -307 samples, but every machine will be different
2 sharp clicks, and math is all it took for me. Only have to do it once.This is what I did, except instead of playing twice (subject to human error) I used synchronized metronomes -- one live and one on playback -- panned hard left and hard right, then used a precision delay to align them dead center. I recorded the result and then applied the technique you describe. There's got to be a better way.
(Coincidentally, I'm answering two support tickets about this right now, one customer and one endorsing artist. I've asked Apple for their advice too).
It's not the live to recorded ratio, as in lag, its the recording offset of the tracks actually printing. Using a live monitored source isn't what the daw actually hears, only what you do. After recording two tracks, you'll see the differenceThis is what I did, except instead of playing twice (subject to human error) I used synchronized metronomes -- one live and one on playback -- panned hard left and hard right, then used a precision delay to align them dead center. I recorded the result and then applied the technique you describe. There's got to be a better way.
(Coincidentally, I'm answering two support tickets about this right now, one customer and one endorsing artist. I've asked Apple for their advice too).
I set up a PreSonus Quantum and the AxeIII as an Aggregate device. I use the Axe-FX III as the sound card and make sure the Quantum is being clocked by the Axe-FX III. It doesn't matter what I/O Buffer Size I choose using this method (usually 64 Samples but it could be, say, 512 because I don't monitor the Axe-FX III via Logic and I don't monitor my voiceover vocals which are being shown the Quantum, due to feedback issues), the two interfaces will line up perfectly as long as the Axe-FX III is doing the clocking. If left to the Quantum, I have to realign after the recording regardless of the Sample rate.
I think it'll depend on your USB Buffer size at the Axe-Fx III itself.
Does this clock rate thing solution work with Axe III being the clock, and my computer running Logic Pro reading the Axe III's clock?
Help me Tom Cruise, Help me Oprah!!!!
Axe-Fx III / Logic Pro:
Are you using Recording Delay in Prefs: Audio? I get the best timing with a setting of -128 samples, but I arrived at this by ear rather than precise measurement.
Please discuss.
I think so too.
I have a call with a Logic team engineer at Apple. I'll get to the bottom of it and let you know.