Discuss Scratch

DasHeiligeDoenerhuhn
Scratcher
13 posts

Notes in Scratch

Hey Guyz,
I was just messing arround with the music extension and tried to figure out which exact frequency the tone C(0) has.
According to the wiki thats about 8 hertz, which confused me,
because I can hear it and hearing fequencies below 20 Hertz is impossible for humans.
Does Someone know what has gone wrong?
Thank you in Advance, DasHeligeDönerhuhn
Maximouse
Scratcher
1000+ posts

Notes in Scratch

A musical tone has a fundamental frequency (about 8 Hz in this case) and overtones (multiples of that frequency). The base frequency of very low notes can't be heard but the overtones can.
DasHeiligeDoenerhuhn
Scratcher
13 posts

Notes in Scratch

Yeah,but the wiki states
There are 131 notes on Scratch's keyboard, numbered from 0 (C-1, about 8.18 Hz) to 130 (B♭9, about 14917.24 Hz)
,so the tone 0 = 8 hertz and should be completely silent(to the human ear). so if the music extension would produce a sine wave at exactly 8.18 Hertz, as the wiki states, then the note should be silent, but it isnt
Maximouse
Scratcher
1000+ posts

Notes in Scratch

DasHeiligeDoenerhuhn wrote:

Yeah,but the wiki states
There are 131 notes on Scratch's keyboard, numbered from 0 (C-1, about 8.18 Hz) to 130 (B♭9, about 14917.24 Hz)
,so the tone 0 = 8 hertz and should be completely silent(to the human ear). so if the music extension would produce a sine wave at exactly 8.18 Hertz, as the wiki states, then the note should be silent, but it isnt
It also produces a sine wave at multiples of 8 Hz (16, 24, 32 …).
DasHeiligeDoenerhuhn
Scratcher
13 posts

Notes in Scratch

Are These lower amplitude or sth?
Maximouse
Scratcher
1000+ posts

Notes in Scratch

DasHeiligeDoenerhuhn wrote:

Are These lower amplitude or sth?
Higher ones are quieter but the exact difference depends on the instrument.
Spentine
Scratcher
1000+ posts

Notes in Scratch

When you use the music extension, it isn't a pure sine wave. It actually has overtones that you can hear, and that's what you are hearing. If there was a pure sine wave instrument then yes, you wouldn't be able to hear it.

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