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Bug? Avid Pro Tools Latency?

Discussion in 'Axe-Fx II Bugs' started by Phuxem, Sep 25, 2018.

  1. #1 Phuxem, Sep 25, 2018
    Last edited: Sep 25, 2018

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    Jun 30, 2012
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    Hey guys! I'm running a 48khz/24 bit Pro Tools session and am using the Axe FX III as the audio interface. I'm recording a dry signal and then using the Axe FX III to monitor the dry signal through a simulated amp along with rest of the recorded session:
    • Main outs for the session are Computer Outputs 1+2 (Output 1 & Headphone Out)
    • Recording dry guitar with Computer Inputs 5+6 (In 1/Instrument)
    • Monitoring dry guitar performance with outputs 7+8 (IN USB into Axe FX III amp, cab, etc)
    (referring to p. 19 of the Axe FX III manual for input/output names)

    I'm noticing a latency, which I'm guessing is totally normal given digital recording and all. But I play metal so every microsecond is super critical when recording/monitoring/double tracking. So the question is:

    What's the proper setting for a dry guitar track's SAMPLE OFFSET in Pro Tools?

    My Axe FX III's buffer is currently set to 256 samples, so my guess would be -512
    • 256 samples IN + 256 samples OUT = 512
    In theory, Pro Tools would play the dry track 512 samples earlier than the other recorded tracks: But instead a track offset of -1024 or -1200 seems to more sound correct. Is this right? Wha't the proper way to go about calculating this? Is there a recording method or trick that helps in hunting for the correct value? And what's the best way to go about calculating this for reamping?

    Thanks in advance!

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