Ever had a moment when a singer starts singing, and you as a musician has to struggle to find the right chords/keys? Just use the microphone here and analyze to find the scale. Takes a couple of seconds for some, and longer for others.
Using Microphone
By Uploading a file
E♭
E
F
F♯
G
A♭
A
B♭
B
C
C♯
D
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Drop some files here or click to upload
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MICROPHONE
Timeline
The main idea is to detect dominant notes/frequencies that appear over the whole duration. The analysis is done every 2 - 3 seconds. Maybe this can help identify chords.