AudioFrequencies

The hearing range of humans is 20Hz to 20,000Hz (20kHz). So that's our lower/upper bounds for processing data.

If we want to start with five breakpoints, this should get us started:

  • 20 to 140: Bass range
  • 140 to 400: Mid-Bass range
  • 400 to 2600: Midrange
  • 2600 to 5200: Upper Midrange
  • 5200 to 20000: High end

Aha, we can probably do better, as per https://www.teachmeaudio.com/mixing/techniques/audio-spectrum/

  • Sub Bass: 20 to 60 Hz
  • Bass: 60 to 250 Hz
  • Low Midrange: 250 to 500 Hz
  • Midrange: 500 Hz to 2 kHz
  • Upper Midrange: 2 to 4 kHz
  • Presence: 4 kHz to 6 kHz
  • Brilliance: 6 kHz to 20 kHz

For the five-bar spectrum, could just use Bass, LowMid, Mid, UpperMid, and Presence. Maybe use Sub Bass for a lighting effect?