This is a very basic spreadsheet of values.

Sequences

I’m a Max n00b but am trying to learn - maybe making a Tom Erbe inspired reverb patch is a little ambitious for me at this point. I didn’t want to copy Tom’s patch directly but wanted to follow his guidance and see what I could do on my own, hence, coming up with my own values for the delays.

A few notes:

  • The top chart is an exponential sequence of Prime numbers, the bottom is a Fibonacci sequence
  • I did not try this with linear values as it seemed harder to get the density
  • An ideal value for each sequence is mutually prime, is not within 5% of the double of any previous value, and is between 10ms and 130ms (this part I borrowed/inferred from Tom’s models)

TOP CHART

  • The exponential factor is 1.18 (each value is multiplied by this factor to reach the next)
  • This factor was decided on by setting the minimum delay at 10ms and the max at 130ms and choosing target values that looked reasonably diverse enough to meet the above criteria
  • Colored cells in the top chart represent values I had to nudge because they were within 5% of the double of a previous value - I simply typed in the “max” figure into a Prime number generator and went with the next available Prime.

BOTTOM CHART

  • The numbers aren’t all Prime numbers but otherwise meet the criteria laid out by Tom
  • I did not have to nudge any of the numbers - they simply worked :slight_smile:
  • The initial delay times are very very short - you can choose to skip these and go straight to the higher values for smaller FDNs
4 Likes