Mercurial > hg > vamp-simple-cepstrum

diff SimpleCepstrum.h @ 24:0a3c1ecff644

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Add rather simplistic cubic interpolation for peak values in a cepstrum output (not yet for pitch tracker). Only gains us 1dp
author Chris Cannam
date Thu, 05 Jul 2012 20:50:56 +0100
parents 7786d595d2f2
children fb862b3418f3
line wrap: on
line diff
--- a/SimpleCepstrum.h	Thu Jul 05 08:29:20 2012 +0100
+++ b/SimpleCepstrum.h	Thu Jul 05 20:50:56 2012 +0100
@@ -83,6 +83,7 @@
     Method m_method;
 
     mutable int m_pkOutput;
+    mutable int m_ipkOutput;
     mutable int m_varOutput;
     mutable int m_p2rOutput;
     mutable int m_cepOutput;
@@ -101,6 +102,8 @@
     double **m_history;
     
     void filter(const double *in, double *out);
+    double cubicInterpolate(const double[4], double);
+    double findInterpolatedPeak(const double *in, int maxbin);
     void fft(unsigned int n, bool inverse,
              double *ri, double *ii, double *ro, double *io);