[sdiy] Polymoog resonator question
rburnett at richieburnett.co.uk
Tue Oct 16 22:23:36 CEST 2018
Digital certainly has its advantages :-)
From: Ian Fritz
Sent: Monday, October 15, 2018 5:39 PM
To: rburnett at richieburnett.co.uk
Cc: synth-diy at synth-diy.org
Subject: Re: [sdiy] Polymoog resonator question
By coincidence, I recently ported my old analog 36-band fixed-frequency
filter bank monstrosity into Reaktor. I kept it just like the original,
then added goodies like a built-in swept test oscillator and a little
sequencer. So I’ve been looking at formant responses for that application.
It’s got a big bunch of controls to set, so being able to save and recall
presets is really nice! Already, I’ve put in the Matthew/Kohut string
filter response with a control to vary the spacing and resonance of the
bands. Amazing how easily this can be done!
> On Oct 15, 2018, at 7:32 AM, rburnett at richieburnett.co.uk wrote:
> Thanks for the suggestions re formant frequencies. Sadly, this isn't
> likely to be something I'll get chance to implement myself in the
> short-term, but the information would surely be useful to others. It just
> seemed to me that tabulated formant data was the final missing piece in
> the jigsaw once you have your filter bank that can dial in whatever
> formants you want to impart to the sound. The formant filter
> implementation could be either an analogue filter bank or some digital
> signal processing. To my mind the latter method sounds well suited to
> quickly switching the formant frequencies and bandwidths from that of one
> instrument to another, or morphing, or mimicking vowels, or whatever...
>> On 2018-10-14 21:14, Ian Fritz wrote:
>> Richie --
>> The most recent studies I am aware of are the ones by Backus and by
>> Mertons. Earlier work is reproduced in Olsen "Music, Physics and
>> Engineering", which is the only one I have.
>>> On 10/14/2018 6:51 AM, Richie Burnett wrote:
>>> Out of interest does anyone know of any published tables of resonances
>>> (formants) for common acoustic instruments?
>>> I've seen tables listing something like the frequencies of the first 4
>>> formants for the male and female vowel sounds in speech, but have never
>>> seen the equivalent for things like a guitar's body resonances.
>>> Synth-diy mailing list
>>> Synth-diy at synth-diy.org
> Synth-diy mailing list
> Synth-diy at synth-diy.org
This email has been checked for viruses by AVG.
More information about the Synth-diy