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Ratio Proportional Help Necessary

🔗John Gilbert <preciousatonement@gmail.com>

4/7/2007 8:58:10 PM

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🔗Keenan Pepper <keenanpepper@gmail.com>

4/8/2007 10:36:39 AM

On 4/7/07, John Gilbert <preciousatonement@gmail.com> wrote:
> Hi I have a problem here. What I am attempting to do is take a set of ratios for 1 octave (1/1-2/1) and translate them over a wider range of 8 octaves.

Why can't you just multiply by powers of two? I must be missing something.

Keenan

🔗Graham Breed <gbreed@gmail.com>

4/8/2007 6:13:59 PM

John Gilbert wrote:
> Hi I have a problem here. What I am attempting to do is take a set of
> ratios for 1 octave (1/1-2/1) and translate them over a wider range of 8
> octaves. The original octave contains highly specified ratios which are > all
> decimals. It seems to be moderately difficult. One idea is to map it as a
> triangle where the top smaller area has the line for the 1 octave range
> while the base of the triangle is the 8 octave range. I am using scala and
> will want the results to be in hz ( or possibly cents would work) for a non
> linear scale. If anyone would like to try to solve this problem please
> don't hesitate to help out.

I can't see the problem. What do you mean by non linear? Why do you need these triangles? To move ratios up or down an octave you multiply or divide by 2.

Graham