Octave Aspects

...another great video from Skye Loefvander, this one looks at the note C at various pitches, take it away Skye...

Find more videos like this on OMN

It is truely thrilling what happens somewhere between 16 Hz which we conceive as rhythm and 32 Hz which is definitely a tone. Don't let me deceive you, of course there is a difference between the piano tones from 32 Hz upwards and the initial sawtooth waves of the rhythmic part, but they too would have been perceptible as tones in the following octaves, but most computer loudspeakers would not be able to render the deepest of them, therefore I chose the piano sound.
The last two octaves - which theoretically are covered by our hearing spectrum - are muted here because the concert piano only spans 7 octaves.
The frequencies here made audible through 12 octaves are:
1 Hz (rhythm)
2 Hz (rhythm)
4 Hz (rhythm)
8 Hz (rhythm)
16 Hz (rhythm on the verge to tone)
32 Hz (tone, C1)
64 Hz (tone, C)
128 Hz (tone, c)
256 Hz (tone, (keyhole-) c' )
512 Hz (tone, c'')
1.024 Hz (tone, c''', the high c)
2.048 Hz (tone, c'''')
4.096 Hz (tone, c''''')

The world record for flamenco heel tapping is 24 Hz! I.e. in the tonal spectrum!
Maybe we could speculate that the mysterious zone 16-32 Hz is what is dragging us when we tend to drop tonally when we sing whereas when we deal with percussion on the contrary we tend to accellerate rhytmically ???

NB! In my opinion it is very important to make deeper reflections on the nature of the octave than what you may find in 'cosmic octave' speculations of the correspondances between tone and cyclic phenomena like colour, planets etc. To treat the octave as an absolute is tempting but you need to think calmly. In music the human perception bends the octave in both the extreme low end and the extreme high end, so that the piano tuner needs to make them too big and too small respectively (railsback curve). Furthermore the waveforms are different (sound: longitudinal, colour spectrum: transversal) and separated by more than 40 octaves which is a gigantic span, so actually these are worlds apart!
Deeper thinking still uses discrimination as a tool, the 'all-is-one-soup' approach often leads to infertile conclusions.

Comments

Popular Posts