2 Copyright (C) 2003-2009 Paul Brossier <piem@aubio.org>
4 This file is part of aubio.
6 aubio is free software: you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation, either version 3 of the License, or
9 (at your option) any later version.
11 aubio is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with aubio. If not, see <http://www.gnu.org/licenses/>.
21 #include "aubio_priv.h"
24 #include "temporal/filter.h"
25 #include "temporal/biquad.h"
28 aubio_filter_set_biquad (aubio_filter_t * f, lsmp_t b0, lsmp_t b1, lsmp_t b2,
31 uint_t order = aubio_filter_get_order (f);
32 lvec_t *bs = aubio_filter_get_feedforward (f);
33 lvec_t *as = aubio_filter_get_feedback (f);
36 AUBIO_ERROR ("order of biquad filter must be 3, not %d\n", order);
49 new_aubio_filter_biquad (lsmp_t b0, lsmp_t b1, lsmp_t b2, lsmp_t a1, lsmp_t a2)
51 aubio_filter_t *f = new_aubio_filter (3);
52 aubio_filter_set_biquad (f, b0, b1, b2, a1, a2);