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StartAutomating/MidiToFrequency.ps1

Created September 14, 2026 03:46
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Gist convert from midi note to frequency
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MidiToFrequency.ps1
<#
.SYNOPSIS
Converts Midi to a Frequency
.DESCRIPTION
Converts a Midi note value to an audio frequency
.LINK
https://en.wikipedia.org/wiki/MIDI_tuning_standard
#>
param(
# The midi note number
[ValidateRange(0,127)]
[double]$MidiNote = 69
)
# Multiply 440 by 2^(($MidiNote-19)/12)
440.0 * [Math]::Pow(
2,
(($MidiNote - 69)/12)
)
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