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Diffstat (limited to 'src/newamp1.h')
| -rw-r--r-- | src/newamp1.h | 86 |
1 files changed, 86 insertions, 0 deletions
diff --git a/src/newamp1.h b/src/newamp1.h new file mode 100644 index 0000000..476f51b --- /dev/null +++ b/src/newamp1.h @@ -0,0 +1,86 @@ +/*---------------------------------------------------------------------------*\ + + FILE........: newamp1.h + AUTHOR......: David Rowe + DATE CREATED: Jan 2017 + + Quantisation functions for the sinusoidal coder, using "newamp1" + algorithm that resamples variable rate L [Am} to a fixed rate K then + VQs. + +\*---------------------------------------------------------------------------*/ + +/* + Copyright David Rowe 2017 + + All rights reserved. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License version 2.1, as + published by the Free Software Foundation. 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 Lesser General Public License + along with this program; if not, see <http://www.gnu.org/licenses/>. +*/ + +#ifndef __NEWAMP1__ +#define __NEWAMP1__ + +#define NEWAMP1_N_INDEXES \ + 4 /* Number of indexes to pack: vq1, vq2, energy, Wo */ +#define NEWAMP1_PHASE_NFFT \ + 128 /* size of FFT used for phase synthesis */ +#define NEWAMP1_K 20 /* rate K vector length */ +#define NEWAMP1_VQ_MBEST_DEPTH \ + 5 /* how many candidates we keep for each stage of mbest search */ + +#include "codec2_fft.h" +#include "comp.h" + +void interp_para(float y[], float xp[], float yp[], int np, float x[], int n); +float ftomel(float fHz); +void mel_sample_freqs_kHz(float rate_K_sample_freqs_kHz[], int K, + float mel_start, float mel_end); +void resample_const_rate_f(C2CONST *c2const, MODEL *model, float rate_K_vec[], + float rate_K_sample_freqs_kHz[], int K); +float rate_K_mbest_encode(int *indexes, float *x, float *xq, int ndim, + int mbest_entries); +void post_filter_newamp1(float vec[], float sample_freq_kHz[], int K, + float pf_gain); +void interp_Wo_v(float Wo_[], int L_[], int voicing_[], float Wo1, float Wo2, + int voicing1, int voicing2); +void resample_rate_L(C2CONST *c2const, MODEL *model, float rate_K_vec[], + float rate_K_sample_freqs_kHz[], int K); +void determine_phase(C2CONST *c2const, COMP H[], MODEL *model, int Nfft, + codec2_fft_cfg fwd_cfg, codec2_fft_cfg inv_cfg); +void determine_autoc(C2CONST *c2const, float Rk[], int order, MODEL *model, + int Nfft, codec2_fft_cfg fwd_cfg, codec2_fft_cfg inv_cfg); +void newamp1_model_to_indexes(C2CONST *c2const, int indexes[], MODEL *model, + float rate_K_vec[], + float rate_K_sample_freqs_kHz[], int K, + float *mean, float rate_K_vec_no_mean[], + float rate_K_vec_no_mean_[], float *se, float *eq, + int eq_en); +void newamp1_indexes_to_rate_K_vec(float rate_K_vec_[], + float rate_K_vec_no_mean_[], + float rate_K_sample_freqs_kHz[], int K, + float *mean_, int indexes[], + float user_rate_K_vec_no_mean_[], + int post_filter_en); +void newamp1_interpolate(float interpolated_surface_[], float left_vec[], + float right_vec[], int K); +void newamp1_eq(float rate_K_vec_no_mean[], float eq[], int K, int eq_en); +void newamp1_indexes_to_model(C2CONST *c2const, MODEL model_[], COMP H[], + float interpolated_surface_[], + float prev_rate_K_vec_[], float *Wo_left, + int *voicing_left, + float rate_K_sample_freqs_kHz[], int K, + codec2_fft_cfg fwd_cfg, codec2_fft_cfg inv_cfg, + int indexes[], float user_rate_K_vec_no_mean_[], + int post_filter_en); + +#endif |