X-Y Formant Filter

[AngularMomentum]

Example of a formant filter with 10 vowels (ee, i, e, ae, ah, aw, uh, oo, u, er) and an X-Y pad to mix four vowels.

[MichaelBenjamin]

sounds pretty nice!

[AngularMomentum]

15 dl's 1 reply? That isn't very encouraging posting stuff...

Thanks Benjamin!

[Andrew J]

Thanks Thomas.

It's quite fun morphing when you play a chord. Might be another thing that attic could try for his experimental sound design - perhaps form a sequence of vowels from a well known text and run the filters over the frogs in the rain

[Jay]

This is great AM i made one of these a wee while ago!

yours uses the same freq tables that i used in my version but i would say that your version isa lot smoother than sounding the one i built. I take it its to do with the secondary bandpass in each block! never thought of doing that!

It makes CPU usage a good bit higher (98%) than in my own filter but, worth it in sound quality

Great stuff, i will find use in this!

Best Regards

[rl]

+1 download.
+1 comment:
nice and straight-forward. To optimize CPU you could use a bandpass filter instead of each SVF pair. IIRC, some time ago, Stefan posted a simple and light bandpass code somewhere here.

To further improve CPU, the 4 formant filter sections could be replaced by one section of 3 BP filters, pre-calculate the filter coefficients and only morph the coefficients. Just an idea, not tested yet.

[oddson]

15 dl's 1 reply? That isn't very encouraging posting stuff...

I DL'd and though it was pretty cool... but I figured you get your ego stroked plenty already

[RunBeerRun2]

That's cool, I'll be playing around with this.

[AngularMomentum]

Woohoo!

+1 download.
+1 comment:
nice and straight-forward. To optimize CPU you could use a bandpass filter instead of each SVF pair. IIRC, some time ago, Stefan posted a simple and light bandpass code somewhere here.

To further improve CPU, the 4 formant filter sections could be replaced by one section of 3 BP filters, pre-calculate the filter coefficients and only morph the coefficients. Just an idea, not tested yet.

Great idea, I used the SV because it sounded best imo for the example, I tried others. There is leaner (and greener) code on the forum for the SV filter, but I was not too bothered for the example. Would be cool if we can transform this into something CPU lean and ready to use.

15 dl's 1 reply? That isn't very encouraging posting stuff...

I DL'd and though it was pretty cool... but I figured you get your ego stroked plenty already

No better high then get my ego stroked by you! I was thinking lately of returning back to addtable, have you ever thought about giving the osc's more waves or use wavetables?

Thanks Thomas.

It's quite fun morphing when you play a chord. Might be another thing that attic could try for his experimental sound design - perhaps form a sequence of vowels from a well known text and run the filters over the frogs in the rain

Great also for those funkin' clavi chords.

Thanks for the comments guys, good to know I am not posting inferior stuff here in vain, most of the stuff here baffles me in many ways, I know I am not worthy!!

If we can work more on this, maybe this could be moved to projects?

[Tzarls]

Just tried it on my netbook and even with the tiny speakers this is fun to play with - can´t wait to get back to the studio for more ahs and ohs.

And idea - this could be set so that a certain path for the XY pad is triggered on note on, so every time you press a key, a morphing vowel is produced - kind like an auto talk box fx.

[Andrew J]

This is great AM i made one of these a wee while ago!

yours uses the same freq tables that i used in my version but i would say that your version isa lot smoother than sounding the one i built. I take it its to do with the secondary bandpass in each block! never thought of doing that!

It makes CPU usage a good bit higher (98%) than in my own filter but, worth it in sound quality

Great stuff, i will find use in this!

Best Regards

Good to see you're still with us Jay!

[Acrobat]

Example of a formant filter with 10 vowels (ee, i, e, ae, ah, aw, uh, oo, u, er) and an X-Y pad to mix four vowels.

that's really nice, mr,
something about the GUI:
this stuff requires much experimentation and fast, numerous changes of vowels settings,
so I guess it's MUCH better to use BUTTONS instead of dropdown menus.
Multiple buttons are much FASTER to use than a drop-down menu, this last literally BLOCKS the pointer
for the choosing time and that's no good!

[AngularMomentum]

40 buttons on a GUI?!?! You could easily have it setup with four sliders on your external controller.

[infuzion]

Thanks AM, that was going to be one of my side-projects in a few months, so you saved me the work!
I was planning to use 4 filters though for the formants; where are the best places to find the frequencies at for that please?

[AngularMomentum]

Can't recall, it is a long time ago I made this, I found it while cleaning the hardrive.

I have seen this on the forum though, the table has one more vowel, I might throw that one in later and check if the list has the same values I used, or if these are better sounding.

British English
http://www.phon.ucl.ac.uk/home/wells/fo ... able-1.htm
http://www.phon.ucl.ac.uk/home/wells/fo ... able-2.htm
http://www.phon.ucl.ac.uk/home/wells/fo ... able-3.htm

American English
http://www.phon.ucl.ac.uk/home/wells/fo ... able-4.htm
http://www.phon.ucl.ac.uk/home/wells/fo ... able-5.htm
http://www.phon.ucl.ac.uk/home/wells/fo ... able-6.htm
http://www.phon.ucl.ac.uk/home/wells/fo ... able-7.htm