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DEMONSTRATION: EXAMINING THE TONALITY AS REGARDING TONAL REST NOTES IN SOME MUSIC USING CAKEWALK MUSIC CREATOR TO PLAY AND EXAMINE A MIDI FILE WHILE SINGING ALONG
This shows a person using the Spectratune along with the Cakewalk Music Creator opened on a Midi file of some music. They have the score for the music, and know the key is D minor from the key signature. They have set starting note to D and show minor key on the Spectratune. The Cakewalk Music Creator (about $40 if you don't have one) allows any portion or instrument or note to be played. The Spectratune shows when the rest tones are hit (thickest vertical lines) and when other tones of the key are hit.
The blue is the spectrogram from the Midi file as it is played. The red arrow is the single pitch detection (which won't work if multiple notes are on at once.) The yellow is someone trying to sing along on the webcam mike. As about 1/4 half-step is the standard requirement to be in-tune, they are out of tune. (I won't embarass the person and name them.)
DEMONSTRATION: GENERATING ONLY SELECTED OVERTONES USING UNESCO'S FREE WAVEMODELER SOFTWARE
I've told the UNESCO synthesizer to just put in the first 4 octave up overtones (as in the picture of the synthesizer -- the centered vertical sliders are at 0). Thus those are the precise sine overtones generated. Just like the basilar membrane in the ear, the spectrogram is activated just at the places corresponding to precisely those those sinusoidal overtones.
The little rift in the fundamental there puzzles me a bit. There are a lot of settings on the UNESCO thing which I don't fully understand, and it may have to do with that.
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