(buf)MFCCs class and help adding startCoeff

release-packaging/Classes/FluidBufMFCC.sc

@@ -1,5 +1,5 @@
 FluidBufMFCC : FluidBufProcessor{
-    *kr  { |source, startFrame = 0, numFrames = -1, startChan = 0, numChans = -1, features, numCoeffs = 13, numBands = 40, minFreq = 20, maxFreq = 20000, windowSize = 1024, hopSize = -1, fftSize = -1, padding = 1, trig = 1, blocking = 0|
+    *kr  { |source, startFrame = 0, numFrames = -1, startChan = 0, numChans = -1, features, numCoeffs = 13, numBands = 40, startCoeff = 0, minFreq = 20, maxFreq = 20000, windowSize = 1024, hopSize = -1, fftSize = -1, padding = 1, trig = 1, blocking = 0|
 
         var maxFFTSize = if (fftSize == -1) {windowSize.nextPowerOfTwo} {fftSize};
         source = source.asUGenInput;
@@ -8,10 +8,10 @@ FluidBufMFCC : FluidBufProcessor{
         source.isNil.if {"FluidBufMFCC:  Invalid source buffer".throw};
         features.isNil.if {"FluidBufMFCC:  Invalid features buffer".throw};
 
-        ^FluidProxyUgen.kr(\FluidBufMFCCTrigger, -1, source, startFrame, numFrames, startChan, numChans, features, padding, numCoeffs, numBands, minFreq, maxFreq,numCoeffs, windowSize, hopSize, fftSize, maxFFTSize,trig, blocking);
+        ^FluidProxyUgen.kr(\FluidBufMFCCTrigger, -1, source, startFrame, numFrames, startChan, numChans, features, padding, numCoeffs, numBands, startCoeff, minFreq, maxFreq, numCoeffs, windowSize, hopSize, fftSize, maxFFTSize,trig, blocking);
     }
 
-    *process { |server, source, startFrame = 0, numFrames = -1, startChan = 0, numChans = -1, features, numCoeffs = 13, numBands = 40, minFreq = 20, maxFreq = 20000, windowSize = 1024, hopSize = -1, fftSize = -1, padding = 1, freeWhenDone=true, action |
+    *process { |server, source, startFrame = 0, numFrames = -1, startChan = 0, numChans = -1, features, numCoeffs = 13, numBands = 40, startCoeff = 0, minFreq = 20, maxFreq = 20000, windowSize = 1024, hopSize = -1, fftSize = -1, padding = 1, freeWhenDone=true, action |
 
         var maxFFTSize = if (fftSize == -1) {windowSize.nextPowerOfTwo} {fftSize};
         source = source.asUGenInput;
@@ -23,11 +23,11 @@ FluidBufMFCC : FluidBufProcessor{
 		^this.new(
 			server, nil,[features]
 		).processList(
-			 [source, startFrame, numFrames, startChan, numChans, features, padding, numCoeffs, numBands, minFreq, maxFreq, numCoeffs,windowSize, hopSize, fftSize, maxFFTSize,0],freeWhenDone,action
+			 [source, startFrame, numFrames, startChan, numChans, features, padding, numCoeffs, numBands, startCoeff, minFreq, maxFreq, numCoeffs, windowSize, hopSize, fftSize, maxFFTSize,0],freeWhenDone,action
 		);
     }
 
-    *processBlocking { |server, source, startFrame = 0, numFrames = -1, startChan = 0, numChans = -1, features, numCoeffs = 13, numBands = 40, minFreq = 20, maxFreq = 20000, windowSize = 1024, hopSize = -1, fftSize = -1, padding = 1, freeWhenDone=true, action |
+    *processBlocking { |server, source, startFrame = 0, numFrames = -1, startChan = 0, numChans = -1, features, numCoeffs = 13, numBands = 40, startCoeff = 0, minFreq = 20, maxFreq = 20000, windowSize = 1024, hopSize = -1, fftSize = -1, padding = 1, freeWhenDone=true, action |
 
         var maxFFTSize = if (fftSize == -1) {windowSize.nextPowerOfTwo} {fftSize};
         source = source.asUGenInput;
@@ -39,7 +39,7 @@ FluidBufMFCC : FluidBufProcessor{
 		^this.new(
 			server, nil,[features]
 		).processList(
-			 [source, startFrame, numFrames, startChan, numChans, features, padding, numCoeffs, numBands, minFreq, maxFreq,numCoeffs, windowSize, hopSize, fftSize, maxFFTSize,1],freeWhenDone,action
+			 [source, startFrame, numFrames, startChan, numChans, features, padding, numCoeffs, numBands, startCoeff, minFreq, maxFreq, numCoeffs, windowSize, hopSize, fftSize, maxFFTSize,1],freeWhenDone,action
 		);
     }
 }

release-packaging/Classes/FluidMFCC.sc

@@ -1,7 +1,7 @@
 FluidMFCC : FluidRTMultiOutUGen {
 
-	*kr { arg in = 0, numCoeffs = 13, numBands = 40, minFreq = 20, maxFreq = 20000, windowSize = 1024, hopSize = -1, fftSize = -1, maxFFTSize = 16384, maxNumCoeffs = 40;
-		^this.multiNew('control', in.asAudioRateInput(this), numCoeffs, numBands, minFreq, maxFreq,  maxNumCoeffs, windowSize, hopSize, fftSize, maxFFTSize);
+	*kr { arg in = 0, numCoeffs = 13, numBands = 40, startCoeff = 0, minFreq = 20, maxFreq = 20000, windowSize = 1024, hopSize = -1, fftSize = -1, maxFFTSize = 16384, maxNumCoeffs = 40;
+		^this.multiNew('control', in.asAudioRateInput(this), numCoeffs, numBands, startCoeff, minFreq, maxFreq,  maxNumCoeffs, windowSize, hopSize, fftSize, maxFFTSize);
 	}
 
 

release-packaging/HelpSource/Classes/FluidBufMFCC.schelp

@@ -44,6 +44,9 @@ ARGUMENT:: numCoeffs
 ARGUMENT:: numBands
 	The number of bands that will be perceptually equally distributed between STRONG::minFreq:: and STRONG::maxFreq::.
 
+ARGUMENT:: startCoeff
+	The lowest index of the output cepstral coefficient, zero-counting.
+
 ARGUMENT:: minFreq
 	The lower boundary of the lowest band of the model, in Hz.
 

release-packaging/HelpSource/Classes/FluidMFCC.schelp

@@ -22,6 +22,9 @@ ARGUMENT:: numCoeffs
 ARGUMENT:: numBands
 	The number of bands that will be perceptually equally distributed between minFreq and maxFreq to describe the spectral shape before it is converted to cepstral coefficients.
 
+ARGUMENT:: startCoeff
+	The lowest index of the output cepstral coefficient, zero-counting.
+
 ARGUMENT:: minFreq
 	The lower boundary of the lowest band of the model, in Hz.
 
@@ -102,7 +105,7 @@ c = Buffer.read(s,File.realpath(FluidMFCC.class.filenameSymbol).dirname.withTrai
 (
 x = {arg bands = 40, low = 20, high = 20000;
 	var source = PlayBuf.ar(1,c,loop:1);
-	Out.kr(b,FluidMFCC.kr(source, 13, bands, low, high, maxNumCoeffs:13) / 10);
+	Out.kr(b,FluidMFCC.kr(source, numCoeffs: 13, numBands: bands, minFreq: low, maxFreq: high, maxNumCoeffs: 13) / 10);
 	source.dup;
 }.play;
 )