Not sure exactly what you want to do, but i have used the Henon map,
torus map and the Lorentz map in pieces(*).  Even wrote about it in the
Csound book somewhere on the CD I think (ch 36 Composing with Chaos),
and also in the Audio Programming Book (ch 13 Using C to Generate
Scores).  These are really events; never had much success with the use
in waveforms.

==John ffitch

(*) The Drums and Different Cannons series, now about 6 finished and
one in progress.  Most on the web

You can use the chuap opcode. This implements Chua's oscillator, which
demonstrates many different kinds of chaotic attractors.

It's also possible to implement various dynamical systems in pretty
simple Csound code as UDOs. The following implements the circle map
with control channels and reverb to make the sound thicker and more
interesting:

sr      = 44100
ksmps   = 100
nchnls  = 2
0dbfs   = 1000
; Set up global control channels for use by Csound API.
giy0                init            1.0
giy0                chnexport       "giy0", 3
gkw                 init            1.0
gkw                 chnexport       "gkw", 3
gkk                 init            1.0
gkk                 chnexport       "gkk", 3
gkf                 init            1.0
gka                 init            100.0
gka                 chnexport       "gka", 3
gkcf                init            1500
gkcf                chnexport       "gkcf", 3
gkq                 init            .7
gkq                 chnexport       "gkq", 3
gkrd                init            .7
gkrd                chnexport       "gkrd", 3
gkrw                init            .7
gkrw                chnexport       "gkrw", 3
; High-precision sine wavetable.
gisine              ftgen           1, 0, 65537, 10, 1
; Floating-point mod operation.
                    opcode          mod, a, ak
adividend, kdivisor xin
afraction           =               frac( adividend / kdivisor )
aresult             =               afraction * kdivisor
                    xout            aresult
                    endop
; Circle map opcode (See Georg Essl,
; "Circle Maps as Simple Oscillators for Complex Behavior: II. Experiments,"
; in Proc. of the 9th Int. Conference on Digital Audio Effects (DAFx-06),
; Montreal, Canada, September 18-20, 2006).
                    opcode          circlemap, a, ikk
                    setksmps        1
iy0, kw, kk         xin
ay0                 init            iy0
ay1                 mod             ( ay0 + a(kw) - ( a(kk) /
6.28318530717 ) * sin( 6.28318530717 * ay0 ) ), 1.0
ay0                 =               ay1
aout                =               sin( 6.28318530717 * ay0 )
                    xout            aout
                    endop
; Instrument to control circle map
                    instr           1
                    print           p1, p2, p3
kw                  =               gkw / sr
asig                circlemap       giy0, kw, gkk
; Resonant filter.
ares                moogladder      asig, gkcf, gkq, 1.00
; Compensate for ringing.
asig                balance         ares, asig
asig                =               asig * gka
; Reverberation
arleft, arright     reverbsc        asig, asig, gkrd, 14000
arwetleft           =               gkrw * arleft
arwetright          =               gkrw * arright
ardry               =               (1.0 - gkrw) * asig
; Anti-clicking.
aenv                linsegr         0.0, 0.1, 1.0, p3, 1.0, 0.1, 0.0
                    outs            aenv * (arwetleft + ardry), aenv *
(arwetright + ardry)
                    endin




On Thu, May 31, 2012 at 7:14 AM, john ffitch  wrote:
> Not sure exactly what you want to do, but i have used the Henon map,
> torus map and the Lorentz map in pieces(*).  Even wrote about it in the
> Csound book somewhere on the CD I think (ch 36 Composing with Chaos),
> and also in the Audio Programming Book (ch 13 Using C to Generate
> Scores).  These are really events; never had much success with the use
> in waveforms.
>
> ==John ffitch
>
> (*) The Drums and Different Cannons series, now about 6 finished and
> one in progress.  Most on the web
>
>
> Send bugs reports to the Sourceforge bug tracker
>            https://sourceforge.net/tracker/?group_id=81968&atid=564599
> Discussions of bugs and features can be posted here
> To unsubscribe, send email sympa@lists.bath.ac.uk with body "unsubscribe csound"
>



-- 
Michael Gogins
Irreducible Productions
http://www.michael-gogins.com
Michael dot Gogins at gmail dot com

Hi Michael,

I tried this example with a sco that just had "i1 0 10" and I didn't
hear much.  Do you have a complete CSD example?

Thanks!
steven

On Thu, May 31, 2012 at 7:36 AM, Michael Gogins
 wrote:
> You can use the chuap opcode. This implements Chua's oscillator, which
> demonstrates many different kinds of chaotic attractors.
>
> It's also possible to implement various dynamical systems in pretty
> simple Csound code as UDOs. The following implements the circle map
> with control channels and reverb to make the sound thicker and more
> interesting:
>
> sr      = 44100
> ksmps   = 100
> nchnls  = 2
> 0dbfs   = 1000
> ; Set up global control channels for use by Csound API.
> giy0                init            1.0
> giy0                chnexport       "giy0", 3
> gkw                 init            1.0
> gkw                 chnexport       "gkw", 3
> gkk                 init            1.0
> gkk                 chnexport       "gkk", 3
> gkf                 init            1.0
> gka                 init            100.0
> gka                 chnexport       "gka", 3
> gkcf                init            1500
> gkcf                chnexport       "gkcf", 3
> gkq                 init            .7
> gkq                 chnexport       "gkq", 3
> gkrd                init            .7
> gkrd                chnexport       "gkrd", 3
> gkrw                init            .7
> gkrw                chnexport       "gkrw", 3
> ; High-precision sine wavetable.
> gisine              ftgen           1, 0, 65537, 10, 1
> ; Floating-point mod operation.
>                    opcode          mod, a, ak
> adividend, kdivisor xin
> afraction           =               frac( adividend / kdivisor )
> aresult             =               afraction * kdivisor
>                    xout            aresult
>                    endop
> ; Circle map opcode (See Georg Essl,
> ; "Circle Maps as Simple Oscillators for Complex Behavior: II. Experiments,"
> ; in Proc. of the 9th Int. Conference on Digital Audio Effects (DAFx-06),
> ; Montreal, Canada, September 18-20, 2006).
>                    opcode          circlemap, a, ikk
>                    setksmps        1
> iy0, kw, kk         xin
> ay0                 init            iy0
> ay1                 mod             ( ay0 + a(kw) - ( a(kk) /
> 6.28318530717 ) * sin( 6.28318530717 * ay0 ) ), 1.0
> ay0                 =               ay1
> aout                =               sin( 6.28318530717 * ay0 )
>                    xout            aout
>                    endop
> ; Instrument to control circle map
>                    instr           1
>                    print           p1, p2, p3
> kw                  =               gkw / sr
> asig                circlemap       giy0, kw, gkk
> ; Resonant filter.
> ares                moogladder      asig, gkcf, gkq, 1.00
> ; Compensate for ringing.
> asig                balance         ares, asig
> asig                =               asig * gka
> ; Reverberation
> arleft, arright     reverbsc        asig, asig, gkrd, 14000
> arwetleft           =               gkrw * arleft
> arwetright          =               gkrw * arright
> ardry               =               (1.0 - gkrw) * asig
> ; Anti-clicking.
> aenv                linsegr         0.0, 0.1, 1.0, p3, 1.0, 0.1, 0.0
>                    outs            aenv * (arwetleft + ardry), aenv *
> (arwetright + ardry)
>                    endin
>
>
>
>
> On Thu, May 31, 2012 at 7:14 AM, john ffitch  wrote:
>> Not sure exactly what you want to do, but i have used the Henon map,
>> torus map and the Lorentz map in pieces(*).  Even wrote about it in the
>> Csound book somewhere on the CD I think (ch 36 Composing with Chaos),
>> and also in the Audio Programming Book (ch 13 Using C to Generate
>> Scores).  These are really events; never had much success with the use
>> in waveforms.
>>
>> ==John ffitch
>>
>> (*) The Drums and Different Cannons series, now about 6 finished and
>> one in progress.  Most on the web
>>
>>
>> Send bugs reports to the Sourceforge bug tracker
>>            https://sourceforge.net/tracker/?group_id=81968&atid=564599
>> Discussions of bugs and features can be posted here
>> To unsubscribe, send email sympa@lists.bath.ac.uk with body "unsubscribe csound"
>>
>
>
>
> --
> Michael Gogins
> Irreducible Productions
> http://www.michael-gogins.com
> Michael dot Gogins at gmail dot com
>
>
> Send bugs reports to the Sourceforge bug tracker
>            https://sourceforge.net/tracker/?group_id=81968&atid=564599
> Discussions of bugs and features can be posted here
> To unsubscribe, send email sympa@lists.bath.ac.uk with body "unsubscribe csound"
>

I am going to create CsoundQt csds for both Chua's oscillator and the
circle map, which I will post here. The initial values of the control
parameters are of course critical.

On Thu, May 31, 2012 at 10:57 AM, Steven Yi  wrote:
> Hi Michael,
>
> I tried this example with a sco that just had "i1 0 10" and I didn't
> hear much.  Do you have a complete CSD example?
>
> Thanks!
> steven
>
> On Thu, May 31, 2012 at 7:36 AM, Michael Gogins
>  wrote:
>> You can use the chuap opcode. This implements Chua's oscillator, which
>> demonstrates many different kinds of chaotic attractors.
>>
>> It's also possible to implement various dynamical systems in pretty
>> simple Csound code as UDOs. The following implements the circle map
>> with control channels and reverb to make the sound thicker and more
>> interesting:
>>
>> sr      = 44100
>> ksmps   = 100
>> nchnls  = 2
>> 0dbfs   = 1000
>> ; Set up global control channels for use by Csound API.
>> giy0                init            1.0
>> giy0                chnexport       "giy0", 3
>> gkw                 init            1.0
>> gkw                 chnexport       "gkw", 3
>> gkk                 init            1.0
>> gkk                 chnexport       "gkk", 3
>> gkf                 init            1.0
>> gka                 init            100.0
>> gka                 chnexport       "gka", 3
>> gkcf                init            1500
>> gkcf                chnexport       "gkcf", 3
>> gkq                 init            .7
>> gkq                 chnexport       "gkq", 3
>> gkrd                init            .7
>> gkrd                chnexport       "gkrd", 3
>> gkrw                init            .7
>> gkrw                chnexport       "gkrw", 3
>> ; High-precision sine wavetable.
>> gisine              ftgen           1, 0, 65537, 10, 1
>> ; Floating-point mod operation.
>>                    opcode          mod, a, ak
>> adividend, kdivisor xin
>> afraction           =               frac( adividend / kdivisor )
>> aresult             =               afraction * kdivisor
>>                    xout            aresult
>>                    endop
>> ; Circle map opcode (See Georg Essl,
>> ; "Circle Maps as Simple Oscillators for Complex Behavior: II. Experiments,"
>> ; in Proc. of the 9th Int. Conference on Digital Audio Effects (DAFx-06),
>> ; Montreal, Canada, September 18-20, 2006).
>>                    opcode          circlemap, a, ikk
>>                    setksmps        1
>> iy0, kw, kk         xin
>> ay0                 init            iy0
>> ay1                 mod             ( ay0 + a(kw) - ( a(kk) /
>> 6.28318530717 ) * sin( 6.28318530717 * ay0 ) ), 1.0
>> ay0                 =               ay1
>> aout                =               sin( 6.28318530717 * ay0 )
>>                    xout            aout
>>                    endop
>> ; Instrument to control circle map
>>                    instr           1
>>                    print           p1, p2, p3
>> kw                  =               gkw / sr
>> asig                circlemap       giy0, kw, gkk
>> ; Resonant filter.
>> ares                moogladder      asig, gkcf, gkq, 1.00
>> ; Compensate for ringing.
>> asig                balance         ares, asig
>> asig                =               asig * gka
>> ; Reverberation
>> arleft, arright     reverbsc        asig, asig, gkrd, 14000
>> arwetleft           =               gkrw * arleft
>> arwetright          =               gkrw * arright
>> ardry               =               (1.0 - gkrw) * asig
>> ; Anti-clicking.
>> aenv                linsegr         0.0, 0.1, 1.0, p3, 1.0, 0.1, 0.0
>>                    outs            aenv * (arwetleft + ardry), aenv *
>> (arwetright + ardry)
>>                    endin
>>
>>
>>
>>
>> On Thu, May 31, 2012 at 7:14 AM, john ffitch  wrote:
>>> Not sure exactly what you want to do, but i have used the Henon map,
>>> torus map and the Lorentz map in pieces(*).  Even wrote about it in the
>>> Csound book somewhere on the CD I think (ch 36 Composing with Chaos),
>>> and also in the Audio Programming Book (ch 13 Using C to Generate
>>> Scores).  These are really events; never had much success with the use
>>> in waveforms.
>>>
>>> ==John ffitch
>>>
>>> (*) The Drums and Different Cannons series, now about 6 finished and
>>> one in progress.  Most on the web
>>>
>>>
>>> Send bugs reports to the Sourceforge bug tracker
>>>            https://sourceforge.net/tracker/?group_id=81968&atid=564599
>>> Discussions of bugs and features can be posted here
>>> To unsubscribe, send email sympa@lists.bath.ac.uk with body "unsubscribe csound"
>>>
>>
>>
>>
>> --
>> Michael Gogins
>> Irreducible Productions
>> http://www.michael-gogins.com
>> Michael dot Gogins at gmail dot com
>>
>>
>> Send bugs reports to the Sourceforge bug tracker
>>            https://sourceforge.net/tracker/?group_id=81968&atid=564599
>> Discussions of bugs and features can be posted here
>> To unsubscribe, send email sympa@lists.bath.ac.uk with body "unsubscribe csound"
>>
>
>
> Send bugs reports to the Sourceforge bug tracker
>            https://sourceforge.net/tracker/?group_id=81968&atid=564599
> Discussions of bugs and features can be posted here
> To unsubscribe, send email sympa@lists.bath.ac.uk with body "unsubscribe csound"
>



-- 
Michael Gogins
Irreducible Productions
http://www.michael-gogins.com
Michael dot Gogins at gmail dot com

Thanks!

On Thu, May 31, 2012 at 11:13 AM, Michael Gogins
 wrote:
> I am going to create CsoundQt csds for both Chua's oscillator and the
> circle map, which I will post here. The initial values of the control
> parameters are of course critical.
>
> On Thu, May 31, 2012 at 10:57 AM, Steven Yi  wrote:
>> Hi Michael,
>>
>> I tried this example with a sco that just had "i1 0 10" and I didn't
>> hear much.  Do you have a complete CSD example?
>>
>> Thanks!
>> steven
>>
>> On Thu, May 31, 2012 at 7:36 AM, Michael Gogins
>>  wrote:
>>> You can use the chuap opcode. This implements Chua's oscillator, which
>>> demonstrates many different kinds of chaotic attractors.
>>>
>>> It's also possible to implement various dynamical systems in pretty
>>> simple Csound code as UDOs. The following implements the circle map
>>> with control channels and reverb to make the sound thicker and more
>>> interesting:
>>>
>>> sr      = 44100
>>> ksmps   = 100
>>> nchnls  = 2
>>> 0dbfs   = 1000
>>> ; Set up global control channels for use by Csound API.
>>> giy0                init            1.0
>>> giy0                chnexport       "giy0", 3
>>> gkw                 init            1.0
>>> gkw                 chnexport       "gkw", 3
>>> gkk                 init            1.0
>>> gkk                 chnexport       "gkk", 3
>>> gkf                 init            1.0
>>> gka                 init            100.0
>>> gka                 chnexport       "gka", 3
>>> gkcf                init            1500
>>> gkcf                chnexport       "gkcf", 3
>>> gkq                 init            .7
>>> gkq                 chnexport       "gkq", 3
>>> gkrd                init            .7
>>> gkrd                chnexport       "gkrd", 3
>>> gkrw                init            .7
>>> gkrw                chnexport       "gkrw", 3
>>> ; High-precision sine wavetable.
>>> gisine              ftgen           1, 0, 65537, 10, 1
>>> ; Floating-point mod operation.
>>>                    opcode          mod, a, ak
>>> adividend, kdivisor xin
>>> afraction           =               frac( adividend / kdivisor )
>>> aresult             =               afraction * kdivisor
>>>                    xout            aresult
>>>                    endop
>>> ; Circle map opcode (See Georg Essl,
>>> ; "Circle Maps as Simple Oscillators for Complex Behavior: II. Experiments,"
>>> ; in Proc. of the 9th Int. Conference on Digital Audio Effects (DAFx-06),
>>> ; Montreal, Canada, September 18-20, 2006).
>>>                    opcode          circlemap, a, ikk
>>>                    setksmps        1
>>> iy0, kw, kk         xin
>>> ay0                 init            iy0
>>> ay1                 mod             ( ay0 + a(kw) - ( a(kk) /
>>> 6.28318530717 ) * sin( 6.28318530717 * ay0 ) ), 1.0
>>> ay0                 =               ay1
>>> aout                =               sin( 6.28318530717 * ay0 )
>>>                    xout            aout
>>>                    endop
>>> ; Instrument to control circle map
>>>                    instr           1
>>>                    print           p1, p2, p3
>>> kw                  =               gkw / sr
>>> asig                circlemap       giy0, kw, gkk
>>> ; Resonant filter.
>>> ares                moogladder      asig, gkcf, gkq, 1.00
>>> ; Compensate for ringing.
>>> asig                balance         ares, asig
>>> asig                =               asig * gka
>>> ; Reverberation
>>> arleft, arright     reverbsc        asig, asig, gkrd, 14000
>>> arwetleft           =               gkrw * arleft
>>> arwetright          =               gkrw * arright
>>> ardry               =               (1.0 - gkrw) * asig
>>> ; Anti-clicking.
>>> aenv                linsegr         0.0, 0.1, 1.0, p3, 1.0, 0.1, 0.0
>>>                    outs            aenv * (arwetleft + ardry), aenv *
>>> (arwetright + ardry)
>>>                    endin
>>>
>>>
>>>
>>>
>>> On Thu, May 31, 2012 at 7:14 AM, john ffitch  wrote:
>>>> Not sure exactly what you want to do, but i have used the Henon map,
>>>> torus map and the Lorentz map in pieces(*).  Even wrote about it in the
>>>> Csound book somewhere on the CD I think (ch 36 Composing with Chaos),
>>>> and also in the Audio Programming Book (ch 13 Using C to Generate
>>>> Scores).  These are really events; never had much success with the use
>>>> in waveforms.
>>>>
>>>> ==John ffitch
>>>>
>>>> (*) The Drums and Different Cannons series, now about 6 finished and
>>>> one in progress.  Most on the web
>>>>
>>>>
>>>> Send bugs reports to the Sourceforge bug tracker
>>>>            https://sourceforge.net/tracker/?group_id=81968&atid=564599
>>>> Discussions of bugs and features can be posted here
>>>> To unsubscribe, send email sympa@lists.bath.ac.uk with body "unsubscribe csound"
>>>>
>>>
>>>
>>>
>>> --
>>> Michael Gogins
>>> Irreducible Productions
>>> http://www.michael-gogins.com
>>> Michael dot Gogins at gmail dot com
>>>
>>>
>>> Send bugs reports to the Sourceforge bug tracker
>>>            https://sourceforge.net/tracker/?group_id=81968&atid=564599
>>> Discussions of bugs and features can be posted here
>>> To unsubscribe, send email sympa@lists.bath.ac.uk with body "unsubscribe csound"
>>>
>>
>>
>> Send bugs reports to the Sourceforge bug tracker
>>            https://sourceforge.net/tracker/?group_id=81968&atid=564599
>> Discussions of bugs and features can be posted here
>> To unsubscribe, send email sympa@lists.bath.ac.uk with body "unsubscribe csound"
>>
>
>
>
> --
> Michael Gogins
> Irreducible Productions
> http://www.michael-gogins.com
> Michael dot Gogins at gmail dot com
>
>
> Send bugs reports to the Sourceforge bug tracker
>            https://sourceforge.net/tracker/?group_id=81968&atid=564599
> Discussions of bugs and features can be posted here
> To unsubscribe, send email sympa@lists.bath.ac.uk with body "unsubscribe csound"
>