Karplus-Strong generator for SunVox

Post Reply
Diomas
Posts: 3
Joined: Thu Dec 01, 2011 11:39 am

Karplus-Strong generator for SunVox

Post by Diomas » Fri Mar 23, 2012 11:20 pm

Is it planned for future versions?

User avatar
NightRadio
Site Admin
Posts: 2949
Joined: Fri Jan 23, 2004 12:28 am
Location: Ekaterinburg. Russia
Contact:

Re: Karplus-Strong generator for SunVox

Post by NightRadio » Sun Mar 25, 2012 12:24 pm

Yes

User avatar
cube48
Posts: 90
Joined: Tue Jun 21, 2011 10:33 am

Re: Karplus-Strong generator for SunVox

Post by cube48 » Wed Oct 26, 2016 3:36 pm

Here is a quck and dirty Karplus Strong experiment. Putting into use the recent additon of Pitch2Ctl module.
KarplusStrongExperiment01.PNG
KarplusStrongExperiment01.PNG (7.21 KiB) Viewed 1528 times
Just play the INPUT module. Unfortunatelly with the 256 Hz limit in the delay module (TunedDelay) it's playable practically only between C4 and C5. Lower notes still get tuned but not sounding like a string anymore. Notes above C5 are stuck at 256 Hz. Change the brightness of the sound either with the filter of the NoiseGen or the Transpose parameter of the TrigNoise.

Edit: this example is roughly transposed by one octave. Normaly it's the C4 which has frequency of 261.63 Hz.

Does anybody have a clue how to get shorter/faster delay than 256 Hz? That way we could have higher octaves. I know it's possible to tune it higher in ms but for more precised tunig we would need fractions of ms and the whole math would be more complicated.
It's possible to put the Pitch Shifter at the end of the chain though but it doesn't sound too well.
Attachments
KarplusStrongExperiment01.sunvox
(7.36 KiB) Downloaded 147 times

User avatar
NightRadio
Site Admin
Posts: 2949
Joined: Fri Jan 23, 2004 12:28 am
Location: Ekaterinburg. Russia
Contact:

Re: Karplus-Strong generator for SunVox

Post by NightRadio » Sat Oct 29, 2016 8:28 pm

Unfortunatelly with the 256 Hz limit in the delay module (TunedDelay) it's playable practically only between C4 and C5
I will increase this limit! :)

User avatar
cube48
Posts: 90
Joined: Tue Jun 21, 2011 10:33 am

Re: Karplus-Strong generator for SunVox

Post by cube48 » Sat Oct 29, 2016 11:59 pm

Wow, it's gonna be fun! (not that it isn't already) Thanks!

User avatar
NightRadio
Site Admin
Posts: 2949
Joined: Fri Jan 23, 2004 12:28 am
Location: Ekaterinburg. Russia
Contact:

Re: Karplus-Strong generator for SunVox

Post by NightRadio » Tue Nov 01, 2016 8:14 pm

Seems it is not enough to just increase the limit of the Frequency parameter...
We can now create some simple Echo-based Karplus-Strong generator. But if we want to add the filter to the feedback circuit - we need some another solution, different from the current Feedback module. Feedback have the internal delay of 20 ms - so we only can get 50 Hz frequencies and lower. Not higher.

User avatar
AJHunter
Posts: 30
Joined: Tue Jul 16, 2013 2:45 am
Location: Michigan
Contact:

Re: Karplus-Strong generator for SunVox

Post by AJHunter » Fri Nov 04, 2016 3:45 am

NightRadio wrote:Feedback have the internal delay of 20 ms - so we only can get 50 Hz frequencies and lower. Not higher.
perhaps a delay slider on the feedback modules, if that's possible?

User avatar
cube48
Posts: 90
Joined: Tue Jun 21, 2011 10:33 am

Re: Karplus-Strong generator for SunVox

Post by cube48 » Tue Dec 12, 2017 2:36 pm

Just for posterity, there's KaStro now with improved implementation of Karplus-Strong concept :wink:

Post Reply