[PD] making scales from frequency values

[Andrew Faraday]

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 at googlemail.com
To: pd-list at 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

_________________________________________________________________
Windows Live Messenger: Happy 10-Year Anniversary—get free winks and emoticons.
http://clk.atdmt.com/UKM/go/157562755/direct/01/
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.puredata.info/pipermail/pd-list/attachments/20090720/97f12c6b/attachment.htm>