[PD] IPA Vowel space analyzer

[Ed Kelly]

I had a go a number of years ago at coding an LPC-based formant detector for PD, 
based on the Speech Filing System from University College London. It has since 
remained on my "to do" list, since I got the object to load but there were 
problems in getting it working (i.e. it didn't, and crashed PD).

In theory, if you can detect the peaks in a Linear Predictive Coding-derive 
polynomial plot, then you can determine the vowel very accurately.

It would be nice to make this work - I'll dig it out and perhaps someone can 
help me understand why it doesn't work (and fix it). I'll dig it out and try to 
GDB it tonight, but I have to feed my child now.

Best,
Ed
 Metastudio 4 for Pure Data - coming soon!
Metastudio 3 still available at http://sharktracks.co.uk/puredata



----- Original Message ----
From: Mathieu Bouchard <matju at artengine.ca>
To: Ludwig Maes <ludwig.maes at gmail.com>
Cc: Pd List <pd-list at iem.at>
Sent: Thu, 28 October, 2010 15:26:05
Subject: Re: [PD] IPA Vowel space analyzer

On Thu, 28 Oct 2010, Mathieu Bouchard wrote:

> Then for example I numbered the above like
>  001 = 6 0 1 = [ɶ]
>  200 = 4 0 0 = [ɛ]
>  511 = 1 1 1 = [ʏ]
>  531 = 5 3 1 = [ʊ]

sorry, I screwed that one. I had gotten the first digit backwards, and I began 
to fix it and didn't finish. The correct list is :

  001 = 0 0 1 = [ɶ]
  200 = 2 0 0 = [ɛ]
  511 = 5 1 1 = [ʏ]
  531 = 5 3 1 = [ʊ]

else it wouldn't be consistent at all.

_______________________________________________________________________
| Mathieu Bouchard ------------------------------ Villeray, Montréal, QC