Add step size

PitchTracker/PitchWrapper.cpp

@@ -58,8 +58,8 @@ bool Analyzer_OutputFloat(Analyzer* analyzer, float* data, int sampleCt, float r
     return analyzer->output(data, data + sampleCt, rate);
 }
 
-DllExport PtAKF* PtAKF_Create(){
+DllExport PtAKF* PtAKF_Create(unsigned step){
-	return new PtAKF();
+	return new PtAKF(step);
 }
 
 DllExport void PtAKF_Free(PtAKF* analyzer){

PitchTracker/PitchWrapper.h

@@ -15,7 +15,7 @@ DllExport double Analyzer_GetPeak(Analyzer* analyzer);
 DllExport double Analyzer_FindNote(Analyzer* analyzer, double minFreq, double maxFreq);
 DllExport bool Analyzer_OutputFloat(Analyzer* analyzer, float* data, int sampleCt, float rate);
 
-DllExport PtAKF* PtAKF_Create();
+DllExport PtAKF* PtAKF_Create(unsigned step);
 DllExport void PtAKF_Free(PtAKF* analyzer);
 DllExport int PtAKF_GetNumHalfTones();
 DllExport void PtAKF_InputByte(PtAKF* analyzer, char* data, int sampleCt);

PitchTracker/ptAKF.cpp

@@ -21,7 +21,7 @@ static constexpr double HalftoneBase = 1.05946309436; // 2^(1/12) -> HalftoneBas
 int PtAKF::_InitCount = 0;
 float* PtAKF::_SamplesPerPeriodPerTone = NULL;
 
-PtAKF::PtAKF(){
+PtAKF::PtAKF(unsigned step){
 	_InitCount++;
 	if(_InitCount == 1){
 		_SamplesPerPeriodPerTone = new float[_MaxHalfTone + 1];
@@ -32,6 +32,7 @@ PtAKF::PtAKF(){
 			_SamplesPerPeriodPerTone[toneIndex] = static_cast<float>(44100.0 / freq); // samples in one period
 		}
 	}
+	_Step = step;
 }
 
 PtAKF::~PtAKF(){
@@ -49,6 +50,7 @@ int PtAKF::GetNote(double* maxVolume, float* weights){
 		_AnalysisBuf.pop(size - _SampleCt);
 	if(!_AnalysisBuf.read(AnaylsisBuf, AnaylsisBuf + _SampleCt))
 		return -1;
+	_AnalysisBuf.pop(_Step);
 	return _GetNote(AnaylsisBuf, maxVolume, weights);
 }
 

PitchTracker/ptAKF.h

@@ -4,7 +4,7 @@
 // A pitch detection that is based on the AKF and AMDF (initially from original Vocaluxe/USDx)
 class PtAKF{
 public:
-	PtAKF();
+	PtAKF(unsigned step);
 	~PtAKF();
 
 	void input(short* begin, short* end){
@@ -21,6 +21,7 @@ private:
 
 	constexpr static size_t _SampleCt = 4096;
 	RingBuffer<_SampleCt * 2> _AnalysisBuf;
+	unsigned _Step;
 
 	static int _GetNote(float* samples, double* maxVolume, float* weights);
 	static float _AnalyzeToneFunc(float* samples, int toneIndex);

Vocaluxe/Lib/Sound/Record/CAnalyzer.cs

@@ -108,7 +108,7 @@ namespace Vocaluxe.Lib.Sound.Record
     {
         #region Imports
         [DllImport("PitchTracker.dll", CallingConvention = CallingConvention.Cdecl)]
-        private static extern IntPtr PtAKF_Create();
+        private static extern IntPtr PtAKF_Create(uint step);
 
         [DllImport("PitchTracker.dll", CallingConvention = CallingConvention.Cdecl)]
         private static extern void PtAKF_Free(IntPtr analyzer);
@@ -125,9 +125,9 @@ namespace Vocaluxe.Lib.Sound.Record
 
         private IntPtr _Instance;
 
-        public CPtAKF()
+        public CPtAKF(uint step = 200)
         {
-            _Instance = PtAKF_Create();
+            _Instance = PtAKF_Create(step);
         }
 
         ~CPtAKF()