From 2d15db30d59ac456c6d2f5ff9693d4dd9af54b16 Mon Sep 17 00:00:00 2001
From: x-1xps <118946228+x-1xps@users.noreply.github.com>
Date: Thu, 11 Jul 2024 21:57:09 +0200
Subject: [PATCH] Formula correction
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The stated formula for converting midi-notes to frequency is wrong – the base and exponent of the second factor should be interchanged
---
 .../examples/DACEqualTemperedScale/DACEqualTemperedScale.ino    | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libraries/AnalogWave/examples/DACEqualTemperedScale/DACEqualTemperedScale.ino b/libraries/AnalogWave/examples/DACEqualTemperedScale/DACEqualTemperedScale.ino
index 0686c5859..61af7c075 100644
--- a/libraries/AnalogWave/examples/DACEqualTemperedScale/DACEqualTemperedScale.ino
+++ b/libraries/AnalogWave/examples/DACEqualTemperedScale/DACEqualTemperedScale.ino
@@ -8,7 +8,7 @@
   a formula for converting MIDI note numbers (0-127) to pitches. This sketch
   reduces that to the notes 21 - 108, which are the 88 keys found on a piano:
 
-     frequency =  440 * ((noteNumber - 69) / 12.0)^2
+     frequency =  440 * 2^((noteNumber - 69) / 12.0)
 
   You can see this applied in the code below.