standardchaos

y[n] = (y[n-1] + k * sin(x[n-1])) % 2pi;
x[n] = (x[n-1] + y[n]) % 2pi;
out = (x[n] - pi) / pi

    aout standardchaos krate, kk=1, ix=0.5, iy=0

<CsoundSynthesizer>
<CsOptions>
-odac           
</CsOptions>

<CsInstruments>
sr     = 44100
ksmps  = 64
nchnls = 2
0dbfs  = 1

/* Example file for standardchaos opcode

    aout standardchaos krate, kk, ix=0.5, iy=0

    Standard map chaotic generator, the sound is generated with the difference equations;
    y[n] = (y[n-1] + k * sin(x[n-1])) % 2pi;
    x[n] = (x[n-1] + y[n]) % 2pi;
    out = (x[n] - pi) / pi;

*/

chn_k "rate", "r"
chn_k "kval", "r"

instr 1
    ix = 0.1
    iy = 0.0
    igain = 0.3
    krate chnget "rate"
    kk chnget "kval"

    aout standardchaos krate, kk, ix, iy
    aout *= igain
    outs aout, aout 
endin

</CsInstruments>

<CsScore>
i1 0 100

</CsScore>
</CsoundSynthesizer>


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  <mouseControl act="">continuous</mouseControl>
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  <randomizable group="0">false</randomizable>
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   <r>245</r>
   <g>124</g>
   <b>0</b>
  </color>
  <textcolor>#f27b00</textcolor>
  <border>1</border>
  <borderColor>#1b1b1b</borderColor>
  <showvalue>true</showvalue>
  <flatstyle>true</flatstyle>
  <integerMode>true</integerMode>
 </bsbObject>
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  <objectName/>
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  <height>41</height>
  <uuid>{189e690b-5322-423c-9288-7c213beb7889}</uuid>
  <visible>true</visible>
  <midichan>0</midichan>
  <midicc>-3</midicc>
  <description/>
  <label>Rate</label>
  <alignment>center</alignment>
  <valignment>center</valignment>
  <font>Liberation Sans</font>
  <fontsize>24</fontsize>
  <precision>3</precision>
  <color>
   <r>255</r>
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  </color>
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  <maximum>20.00000000</maximum>
  <value>5.83000000</value>
  <mode>lin</mode>
  <mouseControl act="">continuous</mouseControl>
  <resolution>0.01000000</resolution>
  <randomizable group="0">false</randomizable>
  <color>
   <r>245</r>
   <g>124</g>
   <b>0</b>
  </color>
  <textcolor>#f27b00</textcolor>
  <border>1</border>
  <borderColor>#1b1b1b</borderColor>
  <showvalue>true</showvalue>
  <flatstyle>true</flatstyle>
  <integerMode>false</integerMode>
 </bsbObject>
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  <visible>true</visible>
  <midichan>0</midichan>
  <midicc>-3</midicc>
  <description/>
  <label>k</label>
  <alignment>center</alignment>
  <valignment>center</valignment>
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   <b>255</b>
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  <borderradius>1</borderradius>
  <borderwidth>0</borderwidth>
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  <objectName>1</objectName>
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  <triggermode>TriggerUp</triggermode>
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<bsbPresets>
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