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- /*
- Sekai - addons for the WORLD speech toolkit
- Copyright (C) 2016 Tobias Platen
- This program 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.
- This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
- */
- #ifndef SEKAI_COMMON_H
- #define SEKAI_COMMON_H
- #define LOG10 2.3025850929940459 /*!< natural logarithm of 10 */
- #define TWENTY_OVER_LOG10 (20. / LOG10)
- #define Np2dB(x) (TWENTY_OVER_LOG10 * (x))
- #define dB2Np(x) ((x) / TWENTY_OVER_LOG10)
- #define likely(x) __builtin_expect((x), 1)
- #define unlikely(x) __builtin_expect((x), 0)
- float interp_linear(float *x, float *y, int nx, float ref);
- double interp_linear(double *x, double *y, int nx, double ref);
- #endif
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