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- /* Copyright 2013 Tobias Platen */
- /* This file is part of Sekai.
- Sekai 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.
- Sekai 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 Sekai. If not, see <http://www.gnu.org/licenses/>.
- */
- #ifndef WORLD_EPR_H_
- #define WORLD_EPR_H_
- typedef struct {
- double gaindb;
- double slope;
- double slopedepthdb;
- } EprSourceParams;
- void EprSourceEstimate(double *spectrogram, int fft_size, int fs, double f0,
- EprSourceParams *params);
- typedef struct {
- // set by the user
- double f;
- double bw;
- double gain_db;
- int enabled;
- // needs to be updated by calling EprResonanceUpdate if any user value is
- // changed
- double a;
- double b;
- double c;
- double norm;
- } EprResonance;
- int EprVocalTractEstimate(double *spectrogram, int fft_size, int fs, double f0,
- EprSourceParams *params, double *residual,
- EprResonance *res, int nres);
- double EprResonanceAtFrequency(EprResonance *me, double f, int fs);
- void EprResonanceUpdate(EprResonance *me, int fs);
- double EprAtFrequency(EprSourceParams *params, double f, int fs,
- EprResonance *res, int n_res);
- #endif
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