Detuning MIDI

I have been asked to add a couple of lines of VST brass to a project.
Turned out that everything is tuned to A=432Hz.

Is there a way to detune MIDI to match the 432 tunning?

I would check the instrument first, maybe there’s a Master Tune parameter, that’s the most probable.

If there’s no such option, I would just “tune” some test note to figure out how much pitch bend is needed to bring it down to 432 and insert a huge pitch down event on the pitch bend lane until the end.

But I wouldn’t use that for the mix. When all parts were finally done, I would remove the pitchbend events, render that MIDI into audio, and pitch down THAT audio.

Thank you.
No, the VST doesn’t have the detune option unfortunately.
I was thinking about detuning the rendered audio but worried that it will sound a bit whacky.

Oh it will sound somewhat off, but I expect it to sound less off than using pitchbend in the first place.

Hi,

Sending the Pitch Bend Message: To detune your MIDI track so that A₄ equals 432 Hz, send a Pitch Bend message with a value of approximately -1289 before playing the notes.

  • Ratio = 432 Hz / 440 Hz ≈ 0.981818
  • Semitones = 12 × log₂(Ratio)
  • Semitones = 12 × log₂(0.981818) ≈ 12 × (-0.026241) ≈ -0.3149 semitones
  • Pitch Bend per Semitone = 8192 / 2 = 4096
  • Required Pitch Bend = -0.3149 × 4096 ≈ -1289
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Thank you :slightly_smiling_face: