I was sloppy. First i meant the octave as two separate tones (one after another), then I meant only the higher pitched one.
The higher tone also excites the sensors for the lower tone.
Wait, does it? I might be spouting bullshit, sorry.
The higher tone also excites the sensors for the lower tone.
Wait, does it? I might be spouting bullshit, sorry.
Thinking about it, I'm not so sure it doesn't. I'm not a physicist to know it for sure.
The octave rule definitely has some physical/biological founding, it’s not purely cultural. Although culture also plays a role in its preponderance.