And thanks for the free sample collection!! 2012/9/5 Julien Saint-Martin

Hi Michael,

Please find attached an example that might do what you want. It use both Lisa and SndBuf. SndBuf is used to load the wav file. And Lisa is used to be driven by a Phasor. Control freq of your phasor will control freq of your synth.

If I remember well what I found on the forum, there is no easier way to do that, but maybe I am wrong.

It should be nice to directly drive the SndBuf with the Phasor. But it is not supported at now.

Have Fun, Ju

2012/9/4 Michael Heuer

...

Hello,

I found this collection of 600-sample one cycle waveforms recently

http://www.adventurekid.se/AKRT/

If I wanted to use these for "wavetable synthesis", is it just a matter of wrapping a looping SndBuf or LiSa with ADSR and tweaking the freq? What if I wanted to do something like the Shruthi1 hardware

http://mutable-instruments.net/shruthi1/manual

or the Animoog app

http://www.moogmusic.com/products/apps/animoog-0

where a bunch of waveforms are combined into a single wavetable, e.g. the Shruthi1 doc

"All these waveforms are wavetables, comprising 16 single-cycle waveforms. The parameter scans the wavetable, smoothly interpolating between each waveform. Some of these tables are 'transwaves': the single cycle waveforms were extracted from different 'stages' of a sample, and you can somehow recreate the original sample by using an envelope that will sweep the parameter from 0 to 127."

Sorry if this question is Electronic Music 101.

michael _______________________________________________ chuck-users mailing list chuck-users@lists.cs.princeton.edu https://lists.cs.princeton.edu/mailman/listinfo/chuck-users

I came up with this https://github.com/heuermh/lick/blob/7326bf48e37dfd74559124c1775314f0378f4c5... which just does hard gain switching between the different waveforms. I could make that a smoother gain envelope. Is that the idea or does "smoothly interpolating" actually mean interpolating the values in the waveforms? michael On Wed, Sep 5, 2012 at 11:55 AM, Michael Heuer wrote:

Hello Ju,

Thanks, I was thinking of something similar using SndBuf directly

SndBuf akwf => ADSR adsr => dac;

"AKWF_raw_0022.wav" => akwf.read; akwf.loop(true); adsr.set(100::ms, 600::ms, 0.9, 20::ms);

while (true) { akwf.freq(Std.rand2f(220.0, 440.0)); adsr.keyOn(1); 1000::ms => now; adsr.keyOff(1);

200::ms => now; }

but this as with your example only uses a single waveform. Setting up an array of SndBufs or more than one sample in LiSa is no problem . . . this sounds interesting though:

"The parameter scans the wavetable, smoothly interpolating between each waveform."

michael

On Wed, Sep 5, 2012 at 4:14 AM, Julien Saint-Martin wrote:

...

And thanks for the free sample collection!!

2012/9/5 Julien Saint-Martin

...

Hi Michael,

Please find attached an example that might do what you want. It use both Lisa and SndBuf. SndBuf is used to load the wav file. And Lisa is used to be driven by a Phasor. Control freq of your phasor will control freq of your synth.

If I remember well what I found on the forum, there is no easier way to do that, but maybe I am wrong.

It should be nice to directly drive the SndBuf with the Phasor. But it is not supported at now.

Have Fun, Ju

2012/9/4 Michael Heuer

...

Hello,

I found this collection of 600-sample one cycle waveforms recently

http://www.adventurekid.se/AKRT/

If I wanted to use these for "wavetable synthesis", is it just a matter of wrapping a looping SndBuf or LiSa with ADSR and tweaking the freq? What if I wanted to do something like the Shruthi1 hardware

http://mutable-instruments.net/shruthi1/manual

or the Animoog app

http://www.moogmusic.com/products/apps/animoog-0

where a bunch of waveforms are combined into a single wavetable, e.g. the Shruthi1 doc

"All these waveforms are wavetables, comprising 16 single-cycle waveforms. The parameter scans the wavetable, smoothly interpolating between each waveform. Some of these tables are 'transwaves': the single cycle waveforms were extracted from different 'stages' of a sample, and you can somehow recreate the original sample by using an envelope that will sweep the parameter from 0 to 127."

Sorry if this question is Electronic Music 101.

michael _______________________________________________ chuck-users mailing list chuck-users@lists.cs.princeton.edu https://lists.cs.princeton.edu/mailman/listinfo/chuck-users

_______________________________________________ chuck-users mailing list chuck-users@lists.cs.princeton.edu https://lists.cs.princeton.edu/mailman/listinfo/chuck-users