Computers and Technology, 03.03.2020 04:19 Sadiecoyle37

I have sampled a trumpet note and keymapped it to MIDI notes 55 to 65. If I play MIDI note 60 and hear middle C, what will I hear if I play MIDI note 62?

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Answer from: harleypage308

The answer is D.

Explanation:

The musical interval between two notes depends on the ratio of their frequencies. An octave is a ratio of 2:1, an octave comprises 12 equal semitones. Each semitone therefore has a ratio of:

$2^{\frac{1}{12} }$ ≈ 1.059

Then by convention, A4 is often set at 440 Hz and has MIDI note 69.

MIDI note 68 wich is one semitone below A4, that is, G#:

G#= $\frac{440}{1.059}$ =415.3 Hz

MIDI note 67 wich is one semitone below G#, that is, G:

G= $\frac{415.3 }{1.059}$ =392 Hz

MIDI note 66 wich is one semitone below G, that is, F#:

F#= $\frac{392 }{1.059}$ =369.9 Hz

MIDI note 65 wich is one semitone below F#, that is, F:

F= $\frac{369.9 }{1.059}$ =349.23 Hz

MIDI note 64 wich is one semitone below F, that is, E:

E= $\frac{349.23 }{1.059}$ =329.63 Hz

MIDI note 63 wich is one semitone below E, that is, D#:

D#= $\frac{329.63 }{1.059}$ =311.13 Hz

Therefore MIDI note 62 wich is one semitone below D#, that is,D:

D= $\frac{311.13 }{1.059}$ =293.6 Hz

Answer from: Quest

explanation:

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Answer from: Quest

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I have sampled a trumpet note and keymapped it to MIDI notes 55 to 65. If I play MIDI note 60 and he...

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