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 Forum index » DIY Hardware and Software » ChucK programming language
Collecting ChucK drum sound designs
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kijjaz



Joined: Sep 20, 2004
Posts: 765
Location: bangkok, thailand
Audio files: 4
PostPosted: Fri Oct 26, 2007 4:05 am    Post subject: Collecting ChucK drum sound designs Reply with quote  Mark this post and the followings unread
from this thread: Rockin' with ChucK
http://electro-music.com/forum/topic-21179.html

I came up with the idea of collecting more example of drum sound design in ChucK
especially one that's ready to use by other users.
I hope this can be one place to talk more about different methods for drum sound design
and implementation in ChucK, especially for live use (CPU-efficient enough)

I've got three working codes around here I'd like to share with you all
(below the drum class, there is also an example on how to trigger and set some example parameters)

Code:
// easy white noise snare
class kjzSnare101 {
    // note: connect output to external sources to connect
    Noise s => Gain s_env => LPF s_f => Gain output; // white noise source
    Impulse i => Gain g => Gain g_fb => g => LPF g_f => s_env;
   
    3 => s_env.op; // make s envelope a multiplier
    s_f.set(3000, 4); // set default drum filter
    g_fb.gain(1.0 - 1.0/3000); // set default drum decay
    g_f.set(200, 1); // set default drum attack
   
    fun void setFilter(float f, float Q)
    {
        s_f.set(f, Q);
    }
    fun void setDecay(float decay)
    {
        g_fb.gain(1.0 - 1.0 / decay); // decay unit: samples!
    }
    fun void setAttack(float attack)
    {
        g_f.freq(attack); // attack unit: Hz!
    }
    fun void hit(float velocity)
    {
        velocity => i.next;
    }
}

kjzSnare101 A;
A.output => dac;
A.hit(0.8);
2::second => now;
A.setDecay(10000);
A.setFilter(5000, 5);
A.hit(0.8);
2::second => now;


Code:
// with some approvements from 101: snare ringing in the body
class kjzSnare102 {
    // note: connect output to external sources to connect
    Noise s => Gain s_env => LPF s_f => Gain output; // white noise source
    Impulse i => Gain g => Gain g_fb => g => LPF g_f => s_env;
   
    s_env => DelayA ringing => Gain ringing_fb => ringing => LPF ringing_f => output;   
   
    3 => s_env.op; // make s envelope a multiplier
    s_f.set(3000, 4); // set default drum filter
    g_fb.gain(1.0 - 1.0/3000); // set default drum decay
    g_f.set(200, 1); // set default drum attack
   
    ringing.max(second);
    ringing.delay((1.0 / 440) :: second); // set default: base ringing frequency = 440Hz
    ringing_fb.gain(0.35); // set default ringing feedback
    ringing_f.set(1500, 1); // set default ringing LPF
    ringing_f.gain(0.6); // set default ringing vol
   
    fun void setFilter(float f, float Q)
    {
        s_f.set(f, Q);
    }
    fun void setDecay(float decay)
    {
        g_fb.gain(1.0 - 1.0 / decay); // decay unit: samples!
    }
    fun void setAttack(float attack)
    {
        g_f.freq(attack); // attack unit: Hz!
    }
    fun void hit(float velocity)
    {
        velocity => i.next;
    }
   
    fun void setRingingGain(float g)
    {
        g => ringing_f.gain;
    }
    fun void setRingingFreq(float f)
    {
        (1.0 / f)::second => ringing.delay;
    }
    fun void setRingingFeedback(float g)
    {
        g => ringing_fb.gain;
    }
    fun void setRingingFilter(float f, float Q)
    {
        ringing_f.set(f, Q);
    }
}

kjzSnare102 A;
A.output => dac;
A.hit(0.8);
1::second => now;
A.setRingingFeedback(.995);
A.setRingingFilter(500, 1);
A.hit(0.8);
3::second => now;


and this one is another model i just developed.
i use this method many times, but it's good to see it incapsulated into a class:

Code:
// simple analog-sounding bass drum with pitch and amp decay and sine overdrive
class kjzBD101
{
   Impulse i; // the attack
   i => Gain g1 => Gain g1_fb => g1 => LPF g1_f => Gain BDFreq; // BD pitch envelope
   i => Gain g2 => Gain g2_fb => g2 => LPF g2_f; // BD amp envelope
   
   // drum sound oscillator to amp envelope to overdrive to LPF to output
   BDFreq => SinOsc s => Gain ampenv => SinOsc s_ws => LPF s_f => Gain output;
   g2_f => ampenv; // amp envelope of the drum sound
   3 => ampenv.op; // set ampenv a multiplier
   1 => s_ws.sync; // prepare the SinOsc to be used as a waveshaper for overdrive
   
   // set default
   80.0 => BDFreq.gain; // BD initial pitch: 80 hz
   1.0 - 1.0 / 2000 => g1_fb.gain; // BD pitch decay
   g1_f.set(100, 1); // set BD pitch attack
   1.0 - 1.0 / 4000 => g2_fb.gain; // BD amp decay
   g2_f.set(50, 1); // set BD amp attack
   .75 => ampenv.gain; // overdrive gain
   s_f.set(600, 1); // set BD lowpass filter
   
   fun void hit(float v)
   {
      v => i.next;
   }
   fun void setFreq(float f)
   {
      f => BDFreq.gain;
   }
   fun void setPitchDecay(float f)
   {
      f => g1_fb.gain;
   }
   fun void setPitchAttack(float f)
   {
      f => g1_f.freq;
   }
   fun void setDecay(float f)
   {
      f => g2_fb.gain;
   }
   fun void setAttack(float f)
   {
      f => g2_f.freq;
   }
   fun void setDriveGain(float g)
   {
      g => ampenv.gain;
   }
   fun void setFilter(float f)
   {
      f => s_f.freq;
   }
}


kjzBD101 A;
A.output => dac;

for(int i; i < 8; i++)
{ A.hit(.5 + i * .1); .5::second => now; }
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Nalaregeork



Joined: Oct 26, 2003
Posts: 17
Location: South East New York
PostPosted: Fri Oct 26, 2007 9:59 am    Post subject: Reply with quote  Mark this post and the followings unread
Nice stuff Smile
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Inventor
Stream Operator


Joined: Oct 13, 2007
Posts: 6221
Location: near Austin, Tx, USA
Audio files: 270
PostPosted: Sat Oct 27, 2007 12:15 am    Post subject: Reply with quote  Mark this post and the followings unread
WooHoo! just what I needed to complete drum_lab.ck, thanks kijjaz! I'm going to check these files out immediately!
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Stream Operator


Joined: Oct 13, 2007
Posts: 6221
Location: near Austin, Tx, USA
Audio files: 270
PostPosted: Sat Oct 27, 2007 12:56 am    Post subject: Reply with quote  Mark this post and the followings unread
Here is a first song using kijjaz's instruments and my composition. I call it "East Meet West" because the lead guitar has that West to East sound that I described before, plus it is a collaboration between myself from USA and kijjaz from Thailand. Hope you like it!

EastMeetsWest1.mp3
 Description:
East Meet West, my composition using kijjaz's instruments, one minute long.
 Filesize:  938.77 KB
 Viewed:  2698 Time(s)

     
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kijjaz



Joined: Sep 20, 2004
Posts: 765
Location: bangkok, thailand
Audio files: 4
PostPosted: Sat Oct 27, 2007 10:14 pm    Post subject: Reply with quote  Mark this post and the followings unread
Here's the tom-tom modified from the BD101
This can also be used well as a bass drum because we can set "base frequency" of the drum.

Code:
// simple analog-sounding tom-tom with pitch and amp decay and sine overdrive
class kjzTT101
{
   Impulse i; // the attack
   i => Gain g1 => Gain g1_fb => g1 => LPF g1_f => Gain TomFallFreq; // tom decay pitch envelope
   i => Gain g2 => Gain g2_fb => g2 => LPF g2_f; // tom amp envelope
   
   // drum sound oscillator to amp envelope to overdrive to LPF to output
   TomFallFreq => SinOsc s => Gain ampenv => SinOsc s_ws => LPF s_f => Gain output;
   Step BaseFreq => s; // base Tom pitch

   g2_f => ampenv; // amp envelope of the drum sound
   3 => ampenv.op; // set ampenv a multiplier
   1 => s_ws.sync; // prepare the SinOsc to be used as a waveshaper for overdrive
   
   // set default
   100.0 => BaseFreq.next;
   50.0 => TomFallFreq.gain; // tom initial pitch: 80 hz
   1.0 - 1.0 / 4000 => g1_fb.gain; // tom pitch decay
   g1_f.set(100, 1); // set tom pitch attack
   1.0 - 1.0 / 4000 => g2_fb.gain; // tom amp decay
   g2_f.set(50, 1); // set tomD amp attack
   .5 => ampenv.gain; // overdrive gain
   s_f.set(1000, 1); // set tom lowpass filter
   
   fun void hit(float v)
   {
      v => i.next;
   }
   fun void setBaseFreq(float f)
   {
      f => BaseFreq.next;
   }   
   fun void setFreq(float f)
   {
      f => TomFallFreq.gain;
   }
   fun void setPitchDecay(float f)
   {
      f => g1_fb.gain;
   }
   fun void setPitchAttack(float f)
   {
      f => g1_f.freq;
   }
   fun void setDecay(float f)
   {
      f => g2_fb.gain;
   }
   fun void setAttack(float f)
   {
      f => g2_f.freq;
   }
   fun void setDriveGain(float g)
   {
      g => ampenv.gain;
   }
   fun void setFilter(float f)
   {
      f => s_f.freq;
   }
}


kjzTT101 A;
A.output => dac;

for(int i; i < 8; i++)
{ A.setBaseFreq(60 + i*20); A.hit(.5 + i * .1); .8::second => now; }
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Inventor
Stream Operator


Joined: Oct 13, 2007
Posts: 6221
Location: near Austin, Tx, USA
Audio files: 270
PostPosted: Sun Oct 28, 2007 5:19 am    Post subject: Reply with quote  Mark this post and the followings unread
Here is drum_lab3.ck, complete with all four of kijjaz's instruments plus Boolean sequencing. I put the bass drum and snare on a very simple beat, then gave the tom-tom a more complex rhythm: XORed pairs of overlapping ANDed bits. The tom-tom's frequency and "hit" variable are both from added bits. There are also some other sequences for snare and bass drum in there to try out. Thanks for the instruments, kijjaz!

drum_lab3.ck
 Description:
A "laboratory" for testing out drum beats and making songs. Set up to play snare, bass drum, and tom-tom.

Download (listen)
 Filename:  drum_lab3.ck
 Filesize:  9.24 KB
 Downloaded:  1814 Time(s)
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kijjaz



Joined: Sep 20, 2004
Posts: 765
Location: bangkok, thailand
Audio files: 4
PostPosted: Sun Oct 28, 2007 7:22 am    Post subject: Reply with quote  Mark this post and the followings unread
Inventor: Wow! That's an exciting tom tom drumming pattern. cool!
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kijjaz



Joined: Sep 20, 2004
Posts: 765
Location: bangkok, thailand
Audio files: 4
PostPosted: Sun Oct 28, 2007 1:32 pm    Post subject: Reply with quote  Mark this post and the followings unread
I'm testing this prototype "RimShot 101"
please give me some comment on the sound character.
i'll add more features very soon after i'm satisfied with the result.
this one uses quite many UGens, but it surely sounds more complex.

Code:
// easy rim shot: (Testing)
class kjzRim101_testing
{
   Impulse i => LPF f1 => DelayA body => Gain ampenv => SinOsc drive => Gain output;
   body => Gain body_fb => body;
   i => Gain g1 => Gain g1_fb => g1 => ampenv;
   Noise n => LPF n_f => Gain n_ampenv => output;
   i => Gain g2 => Gain g2_fb => g2 => LPF g2_f => n_ampenv;   
   
   3 => ampenv.op => n_ampenv.op;
   1 => drive.sync;
   
   f1.set(1000, 1);
   second => body.max;
   second / 600 => body.delay;
   .9 => body_fb.gain;   
   
   1.0 - 1.0/800 => g1_fb.gain;
   
   1.2 => ampenv.gain;
   0.3 => n_ampenv.gain;
   
   n_f.set(5000, 1.5);
   1.0 - 1.0/1000 => g2_fb.gain;
   g2_f.set(50, 1);
   
   fun void hit(float v)
   {
      v => i.next;
   }
}

kjzRim101_testing A;
A.output => dac;
.8 => A.output.gain;

A.hit(1);

2::second => now;
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Inventor
Stream Operator


Joined: Oct 13, 2007
Posts: 6221
Location: near Austin, Tx, USA
Audio files: 270
PostPosted: Mon Oct 29, 2007 4:48 am    Post subject: Reply with quote  Mark this post and the followings unread
kijjaz wrote:
I'm testing this prototype "RimShot 101"
please give me some comment on the sound character.
i'll add more features very soon after i'm satisfied with the result.
this one uses quite many UGens, but it surely sounds more complex.


I tried it out, and it sounds a bit short in duration, can we make it sustain a little more?
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kijjaz



Joined: Sep 20, 2004
Posts: 765
Location: bangkok, thailand
Audio files: 4
PostPosted: Fri Feb 29, 2008 5:41 pm    Post subject: Reply with quote  Mark this post and the followings unread
I still haven't slept (and it's 7 A.M. now hahahhha)..
before I go out of town for 10 days..
i planned this for a very long time but never started the project:

I want to make a very very simple delayline implementation of a snare drum.
I try to connect things as directly as possible..
and with filtered white noise ringmodulating the bottom of the snare drum to simulate the buzz in the snare.

i wasn't expected to hear something exactly like a real snare..
just a good electric snare drum sound is enough..

but this time, I was shocked. !! ..
(its parameter is still in testing stage..
but they're quite easy to understand and we can hear some different after tuning them right away)
so hear it out yourself, brothers and sisters!
This time i'm proud of this, for real. ... and proud that it's much simple than I planned to. it's a happy prototype! .. Embarassed

Code:
// Simple Delayline Snare 01 version 0.1 testing
// by kijjaz
// simple delaylines snare drum design: still a testing prototype

// licence: Attribution-Share Alike 3.0
// You are free:
//    * to Share — to copy, distribute and transmit the work
//    * to Remix — to adapt the work
// Under the following conditions:
//    * Attribution. You must attribute the work in the manner specified by the author or licensor (but not in any way that suggests that they endorse you or your use of the work).
//    * Share Alike. If you alter, transform, or build upon this work, you may distribute the resulting work only under the same, similar or a compatible license.

290.0 => float SnareHeadFreq;
600.0 => float SnareBodyFreq;
630.0 => float SnareBottomFreq;

.4 => float SnareHeadDecay;
.3 => float SnareBottomDecay;
.5 => float SnareBodyDecay;

7000.0 => float SnareBuzzFreq;
.7 => float SnareBuzzQ;
4.0 => float SnareBuzzGain;

180.0 => float StickFreq;
6.0 => float StickQ;

.8 => float HeadMicGain;
.4 => float BottomMicGain;

DelayA drumHead1 => DelayA drumBody1 => DelayA drumHead2 =>
Gain drumHead2_mod => DelayA drumBody2 =>
drumHead1;

drumHead1 => Gain drumHead1_mic => SinOsc drumHead1_drive => Dyno limiter => dac;
drumHead2 => Gain drumHead2_mic => limiter;
drumHead1_mic.gain(HeadMicGain / 2);
drumHead1_drive.sync(1);
drumHead2_mic.gain(BottomMicGain);

limiter.limit();
limiter.gain(.9);

drumHead2_mod.op(3);

Noise snareBuzz => LPF snareBuzz_f => drumHead2_mod;
snareBuzz_f.set(SnareBuzzFreq, SnareBuzzQ);
snareBuzz.gain(SnareBuzzGain);

drumHead1 => Gain drumHead1_fb => drumHead1;
drumHead2 => Gain drumHead2_fb => drumHead2;

Impulse stickImp => LPF stickImp_f => drumHead1;
stickImp_f.set(StickFreq, StickQ);

second => drumHead1.max => drumHead2.max => drumBody1.max => drumBody2.max;
second / SnareHeadFreq => drumHead1.delay;
second / SnareBodyFreq => drumBody1.delay => drumBody2.delay;
second / SnareBottomFreq => drumHead2.delay;

SnareHeadDecay => drumHead1_fb.gain;
SnareBottomDecay => drumHead2_fb.gain;

SnareBodyDecay => drumBody1.gain => drumBody2.gain;
// - - - start hitting

int i;
while(true)
{
    if (i % 8 < 3) stickImp.next(40); else stickImp.next(2 + i%2 * 3);
    if ((i * 7) % 12 > 1) 300::ms => now;
    else   
    for(int j; j < 6; j++)
    {
        stickImp.next(j + j%2);
        50::ms => now;
    }   
   
    i++;
}
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Inventor
Stream Operator


Joined: Oct 13, 2007
Posts: 6221
Location: near Austin, Tx, USA
Audio files: 270
PostPosted: Fri Feb 29, 2008 7:14 pm    Post subject: Reply with quote  Mark this post and the followings unread
Excellent sound, brother! The example sounds like a military cadence drumming, close to the real thing. Don't you just love it when your explorations yield fruit? Once you tidy that thing up and put it in a class and all that stuff, I'm thinking it belongs in Guitar Lab for sure! Great work kijjaz.
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Stream Operator


Joined: Oct 13, 2007
Posts: 6221
Location: near Austin, Tx, USA
Audio files: 270
PostPosted: Fri Feb 29, 2008 7:17 pm    Post subject: Reply with quote  Mark this post and the followings unread
p.s. I added your nick to the copyright button on the front panel of Guitar Lab, kijjaz, since you had so much stuff in it. When you click on it you get an arcade shooting sound made with your earlier drum class.
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kijjaz



Joined: Sep 20, 2004
Posts: 765
Location: bangkok, thailand
Audio files: 4
PostPosted: Tue Mar 04, 2008 9:47 pm    Post subject: Reply with quote  Mark this post and the followings unread
kijjaz to Inventor: oh thanks -_-"

announcement - here's the next release of the Delayline Snare 01
this one provide a test code
and also a way to easily select presets.
but the presets are not that complete and still haven't showed off all the features..
so.. i hope you guys try out, i'll collect as much feedback as possible.

the main problem of the drum is that it sounds very digital-metallic..
which is just because it's made from delaylines hahhahhah..

so i guess it's got a specific character now.

kijjaz-SimpleDelaylineSnare01-0.3-testing04.ck
 Description:
chuck code: Delayline Drum 01

Download (listen)
 Filename:  kijjaz-SimpleDelaylineSnare01-0.3-testing04.ck
 Filesize:  5.86 KB
 Downloaded:  1369 Time(s)
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Inventor
Stream Operator


Joined: Oct 13, 2007
Posts: 6221
Location: near Austin, Tx, USA
Audio files: 270
PostPosted: Wed Mar 05, 2008 2:28 am    Post subject: Reply with quote  Mark this post and the followings unread
Sounds just like the real thing to me. I like how you documented the class so well. I'm plugging it into Guitar Lab right now, let you know when I am done.
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Kassen
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Joined: Jul 06, 2004
Posts: 7678
Location: The Hague, NL
G2 patch files: 3
PostPosted: Wed Mar 05, 2008 5:24 am    Post subject: Reply with quote  Mark this post and the followings unread
Stupid simple techno kick I just made. Not so advanced but simple&cheap and there are lots of numbers to tweak. :¬).

The one interesting bit is perhaps the use of "step" to scale a Envelope so it can be used as a modulation signal.

Code:
SinOsc s => ADSR env =>  dac;
Step c => Envelope mod => s;

SinOsc t => s;
80 => t.gain;
30 => t.freq;

300 => c.next;

80 => s.freq;

2 => s.sync;

.7 => env.sustainLevel;
50::ms => env.decayTime;
.1::second => env.releaseTime;
.05::second => mod.duration;

while(1)
   {
   1 => mod.value;
   1 => mod.keyOff;
   1 => env.keyOn;
   
   .1::second => now;
   
   1 => env.keyOff;
   
   .4::second => now;
   }

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kijjaz



Joined: Sep 20, 2004
Posts: 765
Location: bangkok, thailand
Audio files: 4
PostPosted: Wed Mar 05, 2008 6:20 am    Post subject: Reply with quote  Mark this post and the followings unread
kijjaz to Kassen: oh yes. that's one of my favourites hahahah ^_^
i also love putting that result to an overdrive.
Sometimes i force the phase to start at 0 everytime we do the 'note on'
- - -

I'll try to improve the snare drum sound.
maybe i'll try to add a filter or something as an option to shape the delayed sound.
now it really depends on the comb filtering and some overdrive to shape its actual sound.

I might try to make one with a different model also..
but right now i'm so satisfied with this cutie ^_^
especially its ease-of-use. Cool
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Kassen
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PostPosted: Wed Mar 05, 2008 6:55 am    Post subject: Reply with quote  Mark this post and the followings unread
kijjaz wrote:
Sometimes i force the phase to start at 0 everytime we do the 'note on'
- - -


Yeah, but then it's the same every time and you might as well use a sample, I like the slight liveliness, makes it a bit more organic and if anything needs that it's techno kicks.
:¬)
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kijjaz



Joined: Sep 20, 2004
Posts: 765
Location: bangkok, thailand
Audio files: 4
PostPosted: Wed Mar 05, 2008 12:04 pm    Post subject: Reply with quote  Mark this post and the followings unread
kijjaz to Kassen: Yes. I like that also. ^_^ so basically i use both way, or in the middle (for example, average the phase with 0.0)

I still don't have enough free time to design more cymbals -_-"
I'm still not fully satisfied with what I have tried for a cymbal.
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Kassen
Janitor
Janitor


Joined: Jul 06, 2004
Posts: 7678
Location: The Hague, NL
G2 patch files: 3
PostPosted: Wed Mar 05, 2008 12:50 pm    Post subject: Reply with quote  Mark this post and the followings unread
Yeah, and morphing. I like to morph sounds over the course of a loop and samples won't quite do that, in that way.

Cymbals are just very hard to synthesise and except for jazz brushed hits I don't even like them that much. Plenty of stuff left; cowbell, rim-shot, clap.... BTW, the Shakers has some good tuned percussion hidden in between the coins and pebbles. Bamboo chimes can be cool for percussion, both for "mysterious moods" and Tom Waits style freaked drums.... and those are basically free thanks to Perry. Ermmm.... Woodblock? Steel-drum (for dub?)....
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Stream Operator


Joined: Oct 13, 2007
Posts: 6221
Location: near Austin, Tx, USA
Audio files: 270
PostPosted: Wed Mar 05, 2008 4:49 pm    Post subject: Reply with quote  Mark this post and the followings unread
Here is a 7-second song that plays kijjaz's snare class, just to show that it's in Guitar Lab now. I have a question for kijjaz: what would you say are the main parameters that affect the sound? I want to add sliders, but there seem to be a whole lot to add, are they all effective? Usually some are not.

Kassen, good point there must be plenty of percussive stuff do discover among the existing instruments, we should look at that sometime soon.

Enjoy your 7-second song (keeping them short to save disk space).

Guitar_Lab8.mp3
 Description:
7 seconds of drumming on kijjajz's latest snare class.
 Filesize:  100.81 KB
 Viewed:  2393 Time(s)

     
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kijjaz



Joined: Sep 20, 2004
Posts: 765
Location: bangkok, thailand
Audio files: 4
PostPosted: Fri Mar 07, 2008 3:40 am    Post subject: Reply with quote  Mark this post and the followings unread
Here comes a prototype of the sound of..
Digital-Electro rimshot.. !
Digitally Noisy! ..

Code:
// kijjaz's Table Rimshot 01 - version 0.1 testing

550.0 => float freq;
.3 => float randomRange;
.9 => float decay;
(second / samp / freq) $ int => int samples;

float table[samples];


Step s => Dyno compressor => dac;
s.gain(.5);
compressor.compress();
compressor.thresh(.1);

int j;
while(true)
{
    // reset
    if (now % second == 0::ms) for(int i; i < samples; i++) Std.rand2f(-1, 1) => table[i];
   
   
    Std.rand2(0, (samples * randomRange) $ int) => int i;
    table[(j + i) % samples] => s.next;
    decay *=> table[(j + i) % samples];
    samp => now;
    j++;
}


And this same one with randomwalk patch..
(sounds like a snare drum with the loose snare problem.)

Code:
// kijjaz's Table Rimshot 01 - version 0.1 testing with Ramdomwalk patch

440.0 => float freq;
.5 => float randomRange;
.95 => float decay;
(second / samp / freq) $ int => int samples;

float table[samples];


Step s => Dyno compressor => dac;
s.gain(.5);
compressor.compress();
compressor.thresh(.1);

int j, k;
1 => k;
while(true)
{
    // reset
    if (now % second == 0::ms) for(int i; i < samples; i++) Std.rand2f(-1, 1) => table[i];
   
   
    Std.rand2(0, (samples * randomRange) $ int) => int i;
    table[(j + i) % samples] => s.next;
    decay *=> table[(j + i) % samples];
    samp => now;
    if (maybe) -1 *=> k;
    k +=> j;
    if (j < 0) samples +=> j;
}


and this one produce a more consistent tone
(by initializing the table with a sine wave <-- this should be optimized later)

Code:
// kijjaz's Table Rimshot 01 - version 0.1 testing, with Sine - initialization

550.0 => float freq;
.7 => float randomRange;
.9 => float decay;
(second / samp / freq) $ int => int samples;

float table[samples];


Step s => Dyno compressor => dac;
s.gain(.5);
compressor.compress();
compressor.thresh(.1);

int j;
while(true)
{
    // reset
    if (now % second == 0::ms) for(int i; i < samples; i++) Math.sin(i $ float / samples * 3.14159) => table[i];
   
   
    Std.rand2(0, (samples * randomRange) $ int) => int i;
    table[(j + i) % samples] => s.next;
    decay *=> table[(j + i) % samples];
    samp => now;
    j++;
}
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kijjaz



Joined: Sep 20, 2004
Posts: 765
Location: bangkok, thailand
Audio files: 4
PostPosted: Tue Feb 17, 2009 3:54 am    Post subject: Reply with quote  Mark this post and the followings unread
Long time no talk in this thread!!

Hahaha okay .. today I tried on this idea I had for many months but have not tried yet. I would like to try combining as simple UGens as possible into a patch that can sound like analog drum, but can produce quite a wide variety of classic analog drum sound.

This is a prototype showing the same patch but tweaking a few values to produce different pieces of drums in the drum set. I haven't converted it into a class yet, so let's just hear it out as ideas. The bass drum sound is quite deep so you might not hear it well on small speakers. The snare still doesn't have that snappy feel, but when combine, i think it's a ok sound for now.

kjz_BDSDHH-0.1proto.ck
 Description:
Kijjaz's Noise+Sine Bass Drum, Snare Drum, Hi Hat machine ver. 0.1 prototype

Download (listen)
 Filename:  kjz_BDSDHH-0.1proto.ck
 Filesize:  2.68 KB
 Downloaded:  1128 Time(s)
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Inventor
Stream Operator


Joined: Oct 13, 2007
Posts: 6221
Location: near Austin, Tx, USA
Audio files: 270
PostPosted: Tue Feb 17, 2009 4:26 am    Post subject: Reply with quote  Mark this post and the followings unread
Sweet, kijjaz! These drums are super-simple so they won't overburden the cpu at all. I've been having trouble with too much cpu usage in my KNoW Wave generator so I can make use of them for sure. Plus the variability makes them excellent candidates.

It sounds though that you are going to put them in classes so I'll wait for that, no need to do extra work. Kijjaz: you make the instruments and I'll make the applications. Then we'll all make noise for peace!
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telstarmagikistferrari



Joined: Jun 16, 2008
Posts: 280
Location: Indianapolis, Indiana
Audio files: 43
PostPosted: Wed Feb 18, 2009 11:59 pm    Post subject: Reply with quote  Mark this post and the followings unread
I used the first iteration of Kijaz's delay snare for this little song-chunk.. I used 2 shreds running at different speeds (maybe 3 at one point but I don't think that made the quick and dirty edit that this song IS). I really liked the sound so I wanted to make a little song in response using those nice snare rolls.. Thanks again, Kijaz. I named the song in honor of your first initial. Smile Please don't be offended by its' lack of polish, it was just something I wanted to do before turning in for the night.

K120392.mp3
 Description:
 Filesize:  1.2 MB
 Viewed:  1978 Time(s)

     
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Inventor
Stream Operator


Joined: Oct 13, 2007
Posts: 6221
Location: near Austin, Tx, USA
Audio files: 270
PostPosted: Thu Feb 19, 2009 12:29 am    Post subject: Reply with quote  Mark this post and the followings unread
Nice use of the drum models, it sounded like a marching band. Well done! K for kijjaz!
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