sigmdrive

    out = tanh(in * drivefactor)

if in > 0    -> out = 1.0 - pow(1. - in, drivefactor)
if in <= 0   -> out = pow(1. + x, drivefactor) - 1.0

    aout sigmdrive ain, xdrivefactor, kmode=0

<CsoundSynthesizer>
<CsOptions>
-odac           

</CsOptions>

<CsInstruments>

/* 

    sigmdrive: a sigmoid distortion

    aout sigmdrive ain, kdrive, kmode=0

    kdrive: how much distortion (range 0-inf)
    kmode: 0 = tanh, 1 = pow

*/

sr     = 44100
ksmps  = 64
nchnls = 2
0dbfs  = 1

chn_k "drive", "r"
chn_k "mode", "r"
chn_k "midinote", "r"

chnset 10, "drive"
chnset 1, "mode"

instr 1
    kmidinote chnget "midinote"
    kdrive chnget "drive"
    kmode chnget "mode"     
    ain oscili 0.2, lag(mtof:k(kmidinote), 0.2)
    aout sigmdrive ain, port:k(kdrive, 0.05), kmode
    dispfft aout, 1/20, 2048
    outs aout, aout
endin

</CsInstruments>

<CsScore>

i1 0 100

</CsScore>
</CsoundSynthesizer>


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  <visible>true</visible>
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   <bsbDropdownItem>
    <name>tan0</name>
    <value>0</value>
    <stringvalue/>
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    <stringvalue/>
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  <objectName>graph</objectName>
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  <all>true</all>
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  <visible>true</visible>
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  <valignment>top</valignment>
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