dataset example now with a language side flattener to gain 25x speed

release-packaging/ignore/Examples/dataset/myfirstdataset.scd

@@ -12,8 +12,8 @@ s.reboot;
 if(s.hasBooted.not){"Warning: server not running".postln};
 
 //STEP 1: Get some files
-(
 Buffer.freeAll;
+(
 FileDialog.new(fileMode:2,okFunc:{|x| ~path = x[0];
 	~audioBuffers = SoundFile.collectIntoBuffers(~path+/+'*',s);
 	~lookup = Dictionary(n:~audioBuffers.size);
@@ -27,11 +27,11 @@ FileDialog.new(fileMode:2,okFunc:{|x| ~path = x[0];
 //STEP 3A: EITHER populate the dataset like so (and cry about how long the data point assembly takes)
 (
 Routine{
-    ~audioBuffers.do{|b|
 	var tmpMFCCs = Buffer.new(s);
 	var tmpStats = Buffer.new(s);
-        var tmpFlat = Buffer.new(s,12 * 4 * 2, 1);
+	var tmpFlat = Buffer.alloc(s,12 * 4 * 2, 1);
 	s.sync;
+	~audioBuffers.do{|b|
 		("Analyzing" + b.path).postln;
 		FluidBufMFCC.process(s,b,features: tmpMFCCs);
 		FluidBufStats.process(s,source:tmpMFCCs, stats: tmpStats,numDerivs:1);
@@ -40,16 +40,48 @@ Routine{
 			//This takes ages becayse of server syncing :-(
 			FluidBufCompose.process(s,tmpStats,0,2, i+1,1, destination: tmpFlat, destStartFrame: (i*8));
 			FluidBufCompose.process(s,tmpStats,4,1, i+1,1, destination: tmpFlat, destStartFrame: (i*8) + 2);
-            FluidBufCompose.process(s,tmpStats,6,1, i+1,1, destination:tmpFlat, destStartFrame: (i*8) + 3);
-            FluidBufCompose.process(s,tmpStats,0,2, i+1,1, destination: tmpFlat, destStartFrame: (i*8) + 4);
-            FluidBufCompose.process(s,tmpStats,4,1, i+1,1, destination: tmpFlat, destStartFrame: (i*8) + 6);
-            FluidBufCompose.process(s,tmpStats,6,1, i+1,1, destination:tmpFlat, destStartFrame: (i*8) + 7);
+			FluidBufCompose.process(s,tmpStats,6,3, i+1,1, destination:tmpFlat, destStartFrame: (i*8) + 3);
+			FluidBufCompose.process(s,tmpStats,11,1, i+1,1, destination: tmpFlat, destStartFrame: (i*8) + 6);
+			FluidBufCompose.process(s,tmpStats,13,1, i+1,1, destination:tmpFlat, destStartFrame: (i*8) + 7);
 		};
 		~dataset.addPoint(b.path,tmpFlat);
+	};
+	s.sync;
+	"Done".postln;
 	tmpFlat.free;
 	tmpStats.free;
 	tmpMFCCs.free;
+}.play
+)
+
+//STEP 3B: OR populate the dataset with the flattening happening in langage side (much faster for now)
+(
+Routine{
+	var tmpMFCCs = Buffer.new(s);
+	var tmpStats = Buffer.new(s);
+	var langStats;
+	var langFlat;
+	var tmpFlat = Buffer.alloc(s,12 * 4 * 2, 1);
+	s.sync;
+	~audioBuffers.do{|b|
+		("Analyzing" + b.path).postln;
+		FluidBufMFCC.process(s,b,features: tmpMFCCs);
+		FluidBufStats.process(s,source:tmpMFCCs, stats: tmpStats,numDerivs:1);
+		tmpStats.getn(0,182,{|y| langStats = y;});
+		s.sync;
+		"stats".postln;
+		langFlat = Array.new();
+		//taking the mean, std, min and max, and the mean, std, min and max of the first derivative, of each MFCCs except coeff 0 to dismiss amplitude)
+		[0,1,4,6,7,8,11,13].do({|i| var j,k; j =((i*13)+1); k = j + 11;langFlat = langFlat ++ langStats[j..k]});
+		tmpFlat.setn(0,langFlat);
+		s.sync;
+		~dataset.addPoint(b.path,tmpFlat);
 	};
+	s.sync;
+	"Done".postln;
+	tmpStats.free;
+	tmpMFCCs.free;
+	tmpFlat.free;
 }.play
 )
 
@@ -68,7 +100,7 @@ FileDialog.new(fileMode: 0, acceptMode: 1, okFunc:{|x| var file = x[0];
 });
 )
 
-//STEP 3B: OR load in one you rolled earlier
+//STEP 3C: OR load in one you rolled earlier
 FileDialog.new(fileMode: 0, acceptMode: 0, okFunc:{|x| ~dataset.read(x[0])});
 
 //peek
@@ -79,6 +111,7 @@ c = Buffer.new(s)
 //FluidKDTree
 ~kdtree = FluidKDTree.new(s)
 ~kdtree.fit(~dataset,action:{"fit".postln})
+
 //match
 ~kdtree.kNearest(c,5,{|x| ~matches = x;})
 ~kdtree.kNearestDist(c,5,{|x| x.postln})