# Oscillator Pitch Input - Frequency to Note

Member Posts: 10 Member
edited February 2023

Hello all,

I'm a bit confused here. I have a simple Sine Osc that I'm wanting to control with exact frequencies. For example, I want the osc to output 200hz so with a fader/knob I dial in a value of 200. However the Pitch input for the osc says it is a logarithmic control for the frequency where 0 equals c2 or a frequency of 8.18hz with an accepted range between 0-127. Therefore using an input of 200 would not even be a valid number and a value of something like 55 would need to be used for the osc to output a 200hz sine wave.

What are my options here?

The only two outcomes I can see here are performing a math conversion from frequency to the musical note to accomplish this or that it is just not possible in Reaktor.

Is there a way to accomplish this or do I need to look at options outside of Reaktor ?

Tagged:

• Member Posts: 10 Member

Seems like something that should be simple to accomplish but I couldn't find a solution with the amount of time I wanted to invest in this. I've resorted to building in Max as it is much easier.

Still interested to know if there is a way to do this as I may revisit Reaktor and build the device within Reaktor to see which platform is best for my idea. If anyone knows of a way I would appreciate some insight on this.

Thanks!

the primary math module Log (f) does this, converts from frequency to pitch. the Exp (f) does the opposite

these modules also have a corresponding core version which is simply called f 2 p, or p 2 f

also, if you want control a primary oscillator with only frequency, the pitch needs to be set to about -250

• Member Posts: 10 Member

Thanks for the info, I'll check it out !!

• Member Posts: 92 Helper

I was always under the impression that is was -300 disabled the pitch input all together.