preenfm Forum

PreenFM => preenfm2 and preenfm3 => Topic started by: matrix12x on December 09, 2017, 01:21:15 AM

Title: Frequency
Post by: matrix12x on December 09, 2017, 01:21:15 AM

Hi,
I was wondering if there was a technical reason the Frequency for the Operators was limited to a maximum of 16 and not 24?

Title: Re: Frequency
Post by: Xavier on December 09, 2017, 11:29:51 AM

Hi,
Even with 16 you'll get into aliasing (noise) very quickly.
It's a frequency multiplier.

If you play a C6 note (~1000Hz) with 16 you'll get 16Khz base frequency.
With all the harmonics brung by the modulation you'll very very quickly reach the limit of the 40Khz sampling rate.

40Khz sr -> frequency above 20K will be folded back bellow 20k and will create kind of digital noise.
That's maybe what you want bu i think 16 is enough for that.

Xavier

Title: Re: Frequency
Post by: matrix12x on December 09, 2017, 03:27:52 PM

Thank you.