[PD-ot] sine wave speech
Bryan Jurish
moocow at ling.uni-potsdam.de
Tue Sep 18 09:38:54 CEST 2007
moin all,
On 2007-09-17 23:17:42, Ed Kelly <morph_2016 at yahoo.co.uk> appears to
have written:
> In theory there are 5 formants in speech, spaced at roughly 1KHz
> intervals: 60-1000Hz, 1000-2000Hz etc (roughly).
> If you make sine waves in these frequency ranges you can make vowel-like
> sounds.
well, 6th and even 7th formants have been (pretty convincingly) argued
for; but of course they get less prominent the higher you go: you can
make pretty intelligible vocalic sounds with just 3 formants...
> I don't know what they would do for consonants though - FM?
you could use a noise source (e.g. for fricatives) in parallel with the
vowel generator and a mess of band-pass filters. See:
D. H. Klatt (1980) "Software for a cascade/parallel formant
synthesizer.", Journal of the Acoustical Society of America 67(3),
March 1980, pp 971--995.
... which is (I believe) available in scanned form on the net somewhere.
> Haven't read the paper - this is a glib answer! If and when I get this
> formant analyser I want to build made and working, you should be able to
> drive sines with it, to talk in sines. But if you use Snack tools or
> something to get formant analyses of speech, you should be able to load
> them into a msgfile and drive sines from that.
>
> ...but I need to get a lot finished before I can turn to that again. How
> to get a resonance curve from filter coefficients in 1 block is my
> problem...
>
> Ed
Let us know when you get things running!
marmosets,
Bryan
>
> */IOhannes m zmoelnig <zmoelnig at iem.at>/* wrote:
>
> Hans-Christoph Steiner wrote:
> > Hey all,
> >
> > I just found this paper, and I wonder if anyone has implemented a
> > sine-wave speech synth in Pd.
> >
> > http://www.scholarpedia.org/article/Sine-wave_Speech
> >
> > Basically, you can make intelligable speech using just three sine
> > waves.
>
> i only remember having used something as simple (and obvious) as
> [fiddle~] with 5 partials or so to do this as one of my very first test
> with this object (back in 1998 or so)
>
>
> fmasdr.
> IOhannes
--
Bryan Jurish "There is *always* one more bug."
jurish at ling.uni-potsdam.de -Lubarsky's Law of Cybernetic Entomology
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