Vowels

[chackl]

Hello!

I've recorded a chorus from my Roland FP9. This chorus sings with a wide opened mouth (we in austria would say the chorus is singing "Haaaaaaaaaaaaa". But i don't think so, that it's the same in england)

Now I,ve this vouce, and how am I able to make vowels (like a,e,i,o,u...) with this chorus. It would be built in a new project of me, for plugins, that spetialise on acustics. The Chorus will needed spetial for a gothic Voice.

C.Hackl

[nix]

Hey,
You probably already know about this one, but here is a vowel synth: Delay Lama->
http://www.audionerdz.com/
I am not sure about the method but will think about it.
Cheers

[kirkagur]

i think that if you will take a 3 delays, with the same ratio that format filter has.
move it all together with lfo and you will get the effect.


*this is a theory only i dont know if its close to reality.

[philter5]

as far as i know it is possible to get such vowels without using samples,
they can be created with the regular synthesis modules.
but i´ll have to google to proof if i am right or not

[philter5]

here is what i´ve found.
very interesting if you would like to create a vowel synth...

VOWEL SYNTH

[stw]

here is what i´ve found.
very interesting if you would like to create a vowel synth...

VOWEL SYNTH

Thanks for the link!

[chackl]

Ok.

Have now built that in sm but the Vowels are not sounding like that as they have to.... Why?

[chackl]

I've found something interresting:

http://vokicodder.blogspot.com/2007/04/educational-vowel-synth-and.html

OK. But how can i make such filter curves in sm (if that are filtercourves. it also can be additive osc, but i think that's not that.)

I never focosiced om filters so now im a total greenhorn at it.

[rl]

Typically vowels have 3 or 4 dominant formants.
The easiest way to build a formant filter in SM is using 3 parallel bandpass-filters. Feed that with a harmonically rich signal like a saw or rect wave. Add a little chorus and reverb for an ethereal effect.
Search the web for frequency data, e.g. here: http://www.phon.ucl.ac.uk/home/wells/fo ... able-2.htm.
Adding a little filter resonance might help in vowel perception but also adds ringing noise.

BTW: The famous formant filter source from the musicdsp.org archives cannot be ported to SM, since SM does not support double precision floats.

[chackl]

Sorry but dead link...

[rl]

huh? not from here. Maybe try again.


BTW: this is the formant data I'm using in one of my synts:

Code: Select all

*Formant*   
    heed    head    had     hod     haw'd   who'd
----------------------------------------------------
*Men*
F1  270     530     660     730     570     300
F2  2290    1840    1720    1090    840     870   
F3  3010    2480    2410    2440    2410    2240
*Women*   
F1  310     610     860     850     590     370   
F2  2790    2330    2050    1220    920     950   
F3  3310    2990    2850    2810    2710    2670


[chackl]

and what did you take as input source?

I tryed with a sine, and with my voice of the chorus. but didn't get a good resultat.

Also i've to ask for:
Does anybody have a code only for a BandPass filter. or is that no problem. it schould be CPU cheap...

Will try it again with the ASM-Code from myco.

[rl]

What result do you expect from filtering a sine wave? It contains only one (1, uno) frequency!. As I said: Use a harmonically rich signal like a saw or rectangle wave.

IIRC Stefan posted a CPU-cheap bandpass code some time ago.

[chackl]

Thanks to all!

Got it now working!!!

I've only to experiment now with my chorus, that only is recorded in one vowel. to get it, i've to tune frequences so that may take a bit.

Great thanks to all that helped me!
Great thanks to rl for the frequences!

C.Hackl

[martinvicanek]

Here is a stable single precision version of the public source code formant filter at http://www.musicdsp.org/showone.php?id=110 by alex(at)smartelectronix.com. The original 10-pole filter requires double precision. I have factorized it into five 2-pole filters which work fine at single precision. Factorization of polynomials up to degree 100 can be done easily with the online root finder at http://www.akiti.ca/PolyRootRe.html.