Dear Mike and Andrew,
Thank you for your speedy responses, though I think I am not explaining myself very well. I don't want to use mtof or ftom as these objects even out my ratios. What I'm looking to do is create a scale (say 12 notes for example) out of these ratio's with the possibility of filling in the consonant gaps whilst preserving the original frequencies and ratio's. The 1st number in each group is the strongest partial so: 912Hz, 1081Hz, 1211Hz etc. If I'm saying that these frequencies are 'good' to my ear, is there a way of creating equally 'good' sounding notes to fill in the gaps in, say for example, a 12 note scale based on these notes scaling from the lowest to the highest without doing the whole thing 'by ear'?
Cheers for weighing in,
Jbz
On Mon, Jul 20, 2009 at 11:16 PM, Andrew Faraday jbturgid@hotmail.comwrote:
Hey Jbz I'm not sure if this is what you want, but if you convert a midi note to frequency [mtof] then multiply by integers, you get the natural partials.
So if you multiply the outlet of [mtof] by 2 3 4 5 and 6. then you can change the multiplication figure, etc. I think that's the effect you're after.
God bless
Andrew
Date: Mon, 20 Jul 2009 22:24:05 +0100 From: jbeezez@googlemail.com To: pd-list@iem.at Subject: [PD] making scales from frequency values
Dear all,
I have five chimes. I've worked out the frequencies (using Audacity) of the 5 strongest partials of each chime. I now want to be able to work out how to change the octaves of the various partials? My original intention was to find the nearest midinote and just use those but after listening to the results I would much prefer to keep the original ratio's whilst being able to alter the 'inversions'.
Here's the list that I have already: BT1 912Hz 2434Hz 4575Hz 7175Hz 11584Hz
BT2 1081Hz 2861Hz 5339Hz 8325Hz 15209Hz
BT3 1211Hz 3196Hz 5935Hz 9199Hz 15206Hz
BT4 1347Hz 3553Hz 6569Hz 10128Hz 18139Hz
BT5 1812Hz 4699Hz 8525Hz 13264Hz 15469Hz
Is there one piece of mathematrical wizardy that can sort this in Pd?
Cheers,
Jbz
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