Hz to semitones

ChrisWerner · Post by **ChrisWerner** » Sat Oct 01, 2005 1:29 am

I have to tune my native gear for a project.

Most synths work in semitones and I need to get a tuning of 442Hz instead of 440 but I don´t know how to calc this to semitones.

BTW:Are semitones and cent the same?

Can somebody help me, please?

Thank you in advance.

blazesboylan · Post by **blazesboylan** » Sat Oct 01, 2005 1:48 am

Hi Chris.

Here's a cool little calculator:

http://www.geocities.com/CapeCanaveral/ ... /chc1.html

Leave the "inharmonic" thingamabobber at 0.

There are 100 cents in a semitone. (And 2 semitones in a whole tone. And 12 semitones in an octave. A - B is one whole tone interval, whereas B - C is one semitone interval.)

Hope this helps!

ChrisWerner · Post by **ChrisWerner** » Sat Oct 01, 2005 2:13 am

Thank you very much, the link helped me.
The exact tool I was looking for.

It´s hard/impossible to tune all synths and samplers to +0.0785 cents, though.

The Waves Sound Shifter works fine on the sum channel and through this on all instruments but can be set to whole numbers only.

EDIT: In the sound shifter you can type in a specific ratio to get very near to your demanded result, hupiee.
Thank you again.

<font size=-1>[ This Message was edited by: ChrisWerner on 2005-10-01 03:18 ]</font>

blazesboylan · Post by **blazesboylan** » Sat Oct 01, 2005 11:42 am

Glad it helped Chris! That Sound Shifter sounds cool, I've never used it... Is it MIDI-controllable by any chance?

ChrisWerner · Post by **ChrisWerner** » Sun Oct 02, 2005 7:36 am

On 2005-10-01 12:42, blazesboylan wrote:
Glad it helped Chris! That Sound Shifter sounds cool, I've never used it... Is it MIDI-controllable by any chance?

Sure, it´s a DirectX but with the wave shell it becomes remoteable with a newer host sequencer like SX. Then you should be able to setup a midi controller on it.
As I tried, you can tweak it in realtime without artfacts, cool thing.

blazesboylan · Post by **blazesboylan** » Sun Oct 02, 2005 10:10 pm

Oh man, I want it... Geez I wish Waves would sell individual plugins! May have to save up for a while...

Thanks Chris,

Johann

Cochise · Post by **Cochise** » Mon Oct 03, 2005 8:24 am

On 2005-10-01 02:29, ChrisWerner wrote:
I have to tune my native gear for a project.

Most synths work in semitones and I need to get a tuning of 442Hz instead of 440 but I don´t know how to calc this to semitones.

BTW:Are semitones and cent the same?

Can somebody help me, please?

Thank you in advance.

Here is the formula, if you don't need to connect to web to obtain the value.

Code: Select all

Is the absolute value of
(log(freq1)*1200/log(2))-(log(freq2)*1200/log(2))