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diff --git a/src/pitch/pitchmcomb.h b/src/pitch/pitchmcomb.h
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+/*
+  Copyright (C) 2003-2013 Paul Brossier <piem@aubio.org>
+
+  This file is part of aubio.
+
+  aubio is free software: you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation, either version 3 of the License, or
+  (at your option) any later version.
+
+  aubio is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with aubio.  If not, see <http://www.gnu.org/licenses/>.
+
+*/
+
+/** \file
+
+  Pitch detection using multiple-comb filter
+
+  This fundamental frequency estimation algorithm implements spectral
+  flattening, multi-comb filtering and peak histogramming.
+
+  This method was designed by Juan P. Bello and described in:
+
+  Juan-Pablo Bello. ``Towards the Automated Analysis of Simple Polyphonic
+  Music''.  PhD thesis, Centre for Digital Music, Queen Mary University of
+  London, London, UK, 2003.
+
+  \example pitch/test-pitchmcomb.c
+
+*/
+
+#ifndef AUBIO_PITCHMCOMB_H
+#define AUBIO_PITCHMCOMB_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/** pitch detection object */
+typedef struct _aubio_pitchmcomb_t aubio_pitchmcomb_t;
+
+/** execute pitch detection on an input spectral frame
+
+  \param p pitch detection object as returned by new_aubio_pitchmcomb
+  \param in_fftgrain input signal spectrum as computed by aubio_pvoc_do
+  \param out_cands pitch candidate frequenciess, in bins
+
+*/
+void aubio_pitchmcomb_do (aubio_pitchmcomb_t * p, const cvec_t * in_fftgrain,
+    fvec_t * out_cands);
+
+/** creation of the pitch detection object
+
+  \param buf_size size of the input buffer to analyse
+  \param hop_size step size between two consecutive analysis instant
+
+*/
+aubio_pitchmcomb_t *new_aubio_pitchmcomb (uint_t buf_size, uint_t hop_size);
+
+/** deletion of the pitch detection object
+
+  \param p pitch detection object as returned by new_aubio_pitchfcomb
+
+*/
+void del_aubio_pitchmcomb (aubio_pitchmcomb_t * p);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* AUBIO_PITCHMCOMB_H */