feature/autosinkfeature/cnnfeature/cnn_orgfeature/constantqfeature/crepefeature/crepe_orgfeature/pitchshiftfeature/pydocstringsfeature/timestretchfix/ffmpeg5pitchshiftsamplertimestretchyinfft+
Last change
on this file since 382c42e was
96fb8ad,
checked in by Paul Brossier <piem@altern.org>, 20 years ago
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import 0.1.7.1
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Property mode set to
100644
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File size:
1.2 KB
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Rev | Line | |
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[96fb8ad] | 1 | /* |
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| 2 | Copyright (C) 2003 Paul Brossier |
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| 3 | |
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| 4 | This program is free software; you can redistribute it and/or modify |
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| 5 | it under the terms of the GNU General Public License as published by |
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| 6 | the Free Software Foundation; either version 2 of the License, or |
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| 7 | (at your option) any later version. |
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| 8 | |
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| 9 | This program is distributed in the hope that it will be useful, |
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| 10 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 12 | GNU General Public License for more details. |
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| 13 | |
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| 14 | You should have received a copy of the GNU General Public License |
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| 15 | along with this program; if not, write to the Free Software |
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| 16 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
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| 17 | |
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| 18 | */ |
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| 19 | |
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| 20 | #ifndef BIQUAD_H |
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| 21 | #define BIQUAD_H |
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| 22 | |
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| 23 | /** \file |
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| 24 | * biquad filter |
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| 25 | * |
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| 26 | * \f$ y[n] = b_1 x[n] + b_2 x[n-1] + b_3 x[n-2] - |
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| 27 | * a_2 y[n-1] - a_3 y[n-2] \f$ |
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| 28 | */ |
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| 29 | |
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| 30 | #ifdef __cplusplus |
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| 31 | extern "C" { |
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| 32 | #endif |
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| 33 | |
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| 34 | typedef struct _aubio_biquad_t aubio_biquad_t; |
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| 35 | |
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| 36 | void aubio_biquad_do(aubio_biquad_t * b, fvec_t * in); |
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| 37 | void aubio_biquad_do_filtfilt(aubio_biquad_t * b, fvec_t * in, fvec_t * tmp); |
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| 38 | aubio_biquad_t * new_aubio_biquad(lsmp_t b1, lsmp_t b2, lsmp_t b3, lsmp_t a2, lsmp_t a3); |
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| 39 | |
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| 40 | #ifdef __cplusplus |
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| 41 | } |
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| 42 | #endif |
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| 43 | |
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| 44 | #endif /*BIQUAD_H*/ |
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