Changeset 7380327 for src/mathutils.h

Timestamp:

Mar 8, 2014, 9:30:49 PM (10 years ago)

Author:

Paul Brossier <piem@piem.org>

Branches:

feature/autosink, feature/cnn, feature/cnn_org, feature/constantq, feature/crepe, feature/crepe_org, feature/pitchshift, feature/pydocstrings, feature/timestretch, fix/ffmpeg5, master, pitchshift, sampler, timestretch, yinfft+

Children:

5fe5591

Parents:

1e18df6

Message:

src/mathutils.h: add fvec_quadratic_peak_mag to find the magnitude of interpolated peaks

File:

• src/mathutils.h (modified) (2 diffs)

src/mathutils.h

@@ -1 +1 @@
 /*
-  Copyright (C) 2003-2013 Paul Brossier <piem@aubio.org>
+  Copyright (C) 2003-2014 Paul Brossier <piem@aubio.org>
 
   This file is part of aubio.
@@ -235 +235 @@
 smpl_t fvec_quadratic_peak_pos (fvec_t * x, uint_t p);
 
+/** finds magnitude of peak by quadratic interpolation
+
+  See [Quadratic Interpolation of Spectral
+  Peaks](https://ccrma.stanford.edu/~jos/sasp/Quadratic_Peak_Interpolation.html),
+  by Julius O. Smith III
+
+  \param x vector to get the magnitude of the interpolated peak position from
+  \param p index of the peak in vector `x`
+  \return magnitude of interpolated peak
+
+*/
+smpl_t fvec_quadratic_peak_mag (fvec_t * x, smpl_t p);
+
 /** Quadratic interpolation using Lagrange polynomial.