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spectralscale_shift.effect
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<effect>
<name>spectralscale_shift</name>
<enabled>false</enabled>
<numIns>2</numIns>
<numOuts>2</numOuts>
<code>if (<spectralscaleON> == 1) then
ftps1 pvsanal ain1, <spectralscale_size>, <spectralscale_overlap>, <spectralscale_size>, 1 ; analyse it
ftps2 pvsanal ain2, <spectralscale_size>, <spectralscale_overlap>, <spectralscale_size>, 1
fscale1 pvscale ftps1, <spectralscale_scal>, <spectralscale_form> ; transpose it keeping formants
fscale2 pvscale ftps2, <spectralscale_scal>, <spectralscale_form>
fshift1 pvshift fscale1, <spectralscale_shift>, <spectralscale_lowest>, <spectralscale_form>
fshift2 pvshift fscale2, <spectralscale_shift>, <spectralscale_lowest>, <spectralscale_form>
aouts1 pvsynth fshift1 ; synthesise it
aouts2 pvsynth fshift2
aout1 = (ain1 * <spectralscale_wetdry>) + (aouts1 * (1 - <spectralscale_wetdry>))
aout2 = (ain2 * <spectralscale_wetdry>) + (aouts2 * (1 - <spectralscale_wetdry>))
else
aout1 = ain1
aout2 = ain2
endif</code>
<comments>
DESCRIPTION:
pitch scale and spectral shifting using Victor Lazzarini's pvshift and pvscale, that shifts and scales the frequency components of a signal,
stretching/compressing its spectrum.
CONTROLLERS:
ON/OFF - bypass
scale - scaling ratio
shift - shift amount (in Hz, positive or negative)
lowest shift - lowest frequency to be shifted
overlap - The distance in samples (“hop size”) between overlapping analysis frames
size - The FFT size in samples
keep formants - attempt to keep input signal formants
mix - mix direct signal with effect
---
version 1.11, May 2020
- added comments on controllers
version 1.1, 2018
- new GUI and small code adaptations by Menno Knevel
version 1.0, 2007
- initial version by Peiman Khosravi
See http://www.csounds.com/journal/issue7/onTheDesignOfSpectralToolsInBlue.html
</comments>
<opcodeList/>
<graphicInterface editEnabled='false'>
<gridSettings>
<width>2</width>
<height>5</height>
<gridStyle>LINE</gridStyle>
<snapGridEnabled>true</snapGridEnabled>
</gridSettings>
<bsbObject type='blue.orchestra.blueSynthBuilder.BSBGroup'>
<objectName></objectName>
<x>0</x>
<y>0</y>
<groupName>Group</groupName>
<backgroundColor>0x00000033</backgroundColor>
<borderColor>0x000000ff</borderColor>
<labelTextColor>0xffffffff</labelTextColor>
<titleEnabled>true</titleEnabled>
<width>20</width>
<height>20</height>
<bsbObject type='blue.orchestra.blueSynthBuilder.BSBCheckBox'>
<objectName>spectralscaleON</objectName>
<x>0</x>
<y>0</y>
<automationAllowed>true</automationAllowed>
<label/>
<selected>true</selected>
<randomizable>true</randomizable>
</bsbObject>
<bsbObject type='blue.orchestra.blueSynthBuilder.BSBGroup'>
<objectName></objectName>
<x>10</x>
<y>10</y>
<groupName>Group</groupName>
<backgroundColor>0x4d8080ff</backgroundColor>
<borderColor>0x000000ff</borderColor>
<labelTextColor>0xffffffff</labelTextColor>
<titleEnabled>false</titleEnabled>
<width>20</width>
<height>20</height>
<bsbObject type='blue.orchestra.blueSynthBuilder.BSBCheckBox'>
<objectName>spectralscale_form</objectName>
<x>184</x>
<y>65</y>
<automationAllowed>true</automationAllowed>
<label>keep formants</label>
<selected>false</selected>
<randomizable>true</randomizable>
</bsbObject>
<bsbObject type='blue.orchestra.blueSynthBuilder.BSBLabel' version='2'>
<objectName></objectName>
<x>246</x>
<y>37</y>
<label>size</label>
<font>
<name>System Regular</name>
<size>12.0</size>
</font>
</bsbObject>
<bsbObject type='blue.orchestra.blueSynthBuilder.BSBLabel' version='2'>
<objectName></objectName>
<x>244</x>
<y>14</y>
<label>overlap</label>
<font>
<name>System Regular</name>
<size>12.0</size>
</font>
</bsbObject>
<bsbObject type='blue.orchestra.blueSynthBuilder.BSBKnob' version='2'>
<objectName>spectralscale_shift</objectName>
<x>65</x>
<y>10</y>
<automationAllowed>true</automationAllowed>
<minimum>-1000.0</minimum>
<maximum>1000.0</maximum>
<value>101.03027</value>
<knobWidth>40</knobWidth>
<randomizable>true</randomizable>
<valueDisplayEnabled>true</valueDisplayEnabled>
<label>shift</label>
<labelEnabled>true</labelEnabled>
<font>
<name>System Regular</name>
<size>12.0</size>
</font>
</bsbObject>
<bsbObject type='blue.orchestra.blueSynthBuilder.BSBVSlider' version='2'>
<objectName>spectralscale_wetdry</objectName>
<x>290</x>
<y>35</y>
<automationAllowed>true</automationAllowed>
<minimum>0.0</minimum>
<maximum>1.0</maximum>
<bdresolution>0.01</bdresolution>
<value>0.56</value>
<sliderHeight>50</sliderHeight>
<randomizable>true</randomizable>
<valueDisplayEnabled>false</valueDisplayEnabled>
</bsbObject>
<bsbObject type='blue.orchestra.blueSynthBuilder.BSBDropdown' version='2'>
<objectName>spectralscale_overlap</objectName>
<x>186</x>
<y>11</y>
<automationAllowed>false</automationAllowed>
<selectedIndex>0</selectedIndex>
<fontSize>12</fontSize>
<randomizable>true</randomizable>
<bsbDropdownItemList>
<bsbDropdownItem uniqueId='196006779'>
<name>256</name>
<value>256</value>
</bsbDropdownItem>
<bsbDropdownItem uniqueId='196006780'>
<name>512</name>
<value>512</value>
</bsbDropdownItem>
<bsbDropdownItem uniqueId='196006781'>
<name>1024</name>
<value>1024</value>
</bsbDropdownItem>
</bsbDropdownItemList>
</bsbObject>
<bsbObject type='blue.orchestra.blueSynthBuilder.BSBDropdown' version='2'>
<objectName>spectralscale_size</objectName>
<x>186</x>
<y>35</y>
<automationAllowed>false</automationAllowed>
<selectedIndex>2</selectedIndex>
<fontSize>12</fontSize>
<randomizable>true</randomizable>
<bsbDropdownItemList>
<bsbDropdownItem uniqueId='196006782'>
<name>256</name>
<value>256</value>
</bsbDropdownItem>
<bsbDropdownItem uniqueId='196006783'>
<name>512</name>
<value>512</value>
</bsbDropdownItem>
<bsbDropdownItem uniqueId='196006784'>
<name>1024</name>
<value>1024</value>
</bsbDropdownItem>
<bsbDropdownItem uniqueId='196006785'>
<name>2048</name>
<value>2048</value>
</bsbDropdownItem>
</bsbDropdownItemList>
</bsbObject>
<bsbObject type='blue.orchestra.blueSynthBuilder.BSBLabel' version='2'>
<objectName></objectName>
<x>294</x>
<y>20</y>
<label>mix</label>
<font>
<name>System Regular</name>
<size>12.0</size>
</font>
</bsbObject>
<bsbObject type='blue.orchestra.blueSynthBuilder.BSBKnob' version='2'>
<objectName>spectralscale_scal</objectName>
<x>10</x>
<y>10</y>
<automationAllowed>true</automationAllowed>
<minimum>0.1</minimum>
<maximum>4.0</maximum>
<value>1.6061682999999998</value>
<knobWidth>40</knobWidth>
<randomizable>true</randomizable>
<valueDisplayEnabled>true</valueDisplayEnabled>
<label>scale</label>
<labelEnabled>true</labelEnabled>
<font>
<name>System Regular</name>
<size>12.0</size>
</font>
</bsbObject>
<bsbObject type='blue.orchestra.blueSynthBuilder.BSBKnob' version='2'>
<objectName>spectralscale_lowest</objectName>
<x>105</x>
<y>10</y>
<automationAllowed>true</automationAllowed>
<minimum>0.0</minimum>
<maximum>200.0</maximum>
<value>0.0</value>
<knobWidth>40</knobWidth>
<randomizable>true</randomizable>
<valueDisplayEnabled>true</valueDisplayEnabled>
<label>lowest shift</label>
<labelEnabled>true</labelEnabled>
<font>
<name>System Regular</name>
<size>12.0</size>
</font>
</bsbObject>
</bsbObject>
</bsbObject>
</graphicInterface>
<parameterList>
<parameter uniqueId='-134333885' name='spectralscale_scal' label='' min='0.1' max='4.0' bdresolution='-1' automationEnabled='false' value='1.6061682999999998'>
<line name='' version='2' max='4.0' min='0.1' bdresolution='-1' color='-8355712' rightBound='false' endPointsLinked='false'>
<linePoint x='0.0' y='1.6061682999999998'/>
</line>
</parameter>
<parameter uniqueId='-134333883' name='spectralscale_shift' label='' min='-1000.0' max='1000.0' bdresolution='-1' automationEnabled='false' value='101.03027'>
<line name='' version='2' max='1000.0' min='-1000.0' bdresolution='-1' color='-8355712' rightBound='false' endPointsLinked='false'>
<linePoint x='0.0' y='101.03027'/>
</line>
</parameter>
<parameter uniqueId='1965729648' name='spectralscale_form' label='' min='0.0' max='1.0' bdresolution='1' automationEnabled='false' value='0.0'>
<line name='' version='2' max='1.0' min='0.0' bdresolution='1' color='-8355712' rightBound='false' endPointsLinked='false'>
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</parameter>
<parameter uniqueId='-595814216' name='spectralscale_lowest' label='' min='0.0' max='200.0' bdresolution='-1' automationEnabled='false' value='0.0'>
<line name='' version='2' max='200.0' min='0.0' bdresolution='-1' color='-8355712' rightBound='false' endPointsLinked='false'>
<linePoint x='0.0' y='0.0'/>
</line>
</parameter>
<parameter uniqueId='-595813218' name='spectralscale_wetdry' label='' min='0.0' max='1.0' bdresolution='0.01' automationEnabled='false' value='0.56'>
<line name='' version='2' max='1.0' min='0.0' bdresolution='0.01' color='-8355712' rightBound='false' endPointsLinked='false'>
<linePoint x='0.0' y='0.56'/>
</line>
</parameter>
<parameter uniqueId='-104104255' name='spectralscaleON' label='' min='0.0' max='1.0' bdresolution='1' automationEnabled='false' value='1.0'>
<line name='' version='2' max='1.0' min='0.0' bdresolution='1' color='-8355712' rightBound='false' endPointsLinked='false'>
<linePoint x='0.0' y='1.0'/>
</line>
</parameter>
</parameterList>
</effect>