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My best shot so far at making IRs with VPDI

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  • My best shot so far at making IRs with VPDI

    Just wanted to share this VPDI technique that I’ve been having success in recent days. It uses the Advance Creation process.

    1. When making the IR, I begin by playing each string open using the same attack I use when playing live. (It seems that all piezo-based pickups respond better with a light attack.) I let each string ring out. My theory is that the overtones change as the notes ring out and I want the VP to get a measurement of that dynamic change (my thinking … nothing scientific there). Moving up the neck, I do again at the 5th and 10th frets.

    2. I play some open and bar chords and let them ring out, also moving up the neck.

    3. I play through a song segment (maybe 6-10 seconds) that represents my generally playing style.

    4. I finish off with some harmonics. Total time: maybe 2 minutes.

    5. After processing and saving the IR, I run through the feedback frequency procedure. In most cases, I apply the feedback frequency of 60-100%. Sounds better right way. At this point, if I’m able, I’m monitoring through my PA. BTW, I’m convinced that getting the lows under control is essential before any attempts to sweeten the sound with further equalization.

    On both the VP eq and the overall eq, I apply the HPF at a higher frequency than you might think – generally around 150 Hz; and on the LPF lower than you might think – 7500-8500 Hz. Generally, nothing higher than that is usable in a live playing situation in my experience.

    6. With no additional eq at this point, I record a couple of minutes of music into my DAW (Logic) where the eq controls are easier to use. Listening to the recording – rather than playing the guitar – keeps me from confusing the recorded tone of my guitar with the live sound. I begin to hunt for peaky frequencies using the eq’s visual display and by scanning across the spectrum using a narrow q and exaggerated frequency levels. I’m no expert, but I’ve learned that a general knowledge of eq is very helpful at this point.

    When I find an ugly frequency band I bring it down using the narrowest q possibly to eliminates the unpleasing tone I’m hearing. If I end up making radical frequency cuts (more than about 6 dB), I consider rerecording the IR and doing something different like using a different mic position or changing strings. After all, the TonePrint has already done all the heavy eq lifting.

    When I’m satisfied with the overall sound in the DAW, I duplicate the eq setting in the VPDI. I like to add a little compression and reverb.

    That gets me in the ballpark. When I get to the gig, a little tweaking is usually necessary. I save that tweak as a new preset.

    Hope that helps or at least stimulates some profitable discussion that will help us all.
    Last edited by Ex202; 07-29-2021, 07:42 AM.

  • #2
    Thanks for the detailed walkthrough!

    I've been using the Advanced VP Creation a lot lately too, with great results.

    I love that you're recording your signal and EQ'ing it in your DAW to keep the guitar isolated. I've been doing something similar with my loop pedal, looping the guitar and then EQ'ing it without the "live" guitar in the room.

    That LPF setting does seem a bit low, but hey, whatever works!

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    • #3
      I also use a looper to keep the guitar isolated. Thank you for sharing your thought process on making your voiceprint. I have had a couple revisions to my voiceprint but i have yet to try the advance vp creation. So thanks for this and i might give it a try.

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