KVR Audio

wsaidah · Post by **wsaidah** » Wed Mar 11, 2009 8:23 pm

comb filter notch frequency calculator is there one out there?

wsaidah · Post by **wsaidah** » Thu Mar 12, 2009 6:56 pm

no one knows what im talking about

shamann · Post by **shamann** » Thu Mar 12, 2009 7:46 pm

I know what you're talking about, just don't know of a calculator for it. You could just use a look-up table for Hz value of equal tempered pitch and then convert those to milliseconds with: (1/Frequency in Hz)*1000=milliseconds.

Rounded to three decimal positions, looks like so:

wsaidah · Post by **wsaidah** » Fri Mar 13, 2009 12:50 am

thanks shamann

flowdesigner · Post by **flowdesigner** » Sat Mar 21, 2009 10:32 am

thanks !

Music Engineer · Post by **Music Engineer** » Sat Mar 21, 2009 6:47 pm

shamann wrote:You could just use a look-up table for Hz value of equal tempered pitch and then convert those to milliseconds with: (1/Frequency in Hz)*1000=milliseconds.

or you use a formula for the pitch-to-frequency conversion as well:

frequency = 440 * 2^( (pitch-69)/12 )

where pitch is the MIDI note number.

btw.: my old Stereo-Flanger on the braindoc website has this all built in and you can play the comb-filter via MIDI-notes