90 lines
4.2 KiB
C
90 lines
4.2 KiB
C
/*---------------------------------------------------------------------------*\
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FILE........: newamp2.h
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AUTHOR......: Thomas Kurin and Stefan Erhardt
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INSTITUTE...: Institute for Electronics Engineering, University of Erlangen-Nuremberg
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DATE CREATED: July 2018
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BASED ON....: "newamp1.h" by David Rowe
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Quantisation functions for the sinusoidal coder, using "newamp1"
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algorithm that resamples variable rate L [Am} to a fixed rate K then
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VQs.
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\*---------------------------------------------------------------------------*/
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/*
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Copyright Thomas Kurin and Stefan Erhardt 2018
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All rights reserved.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License version 2.1, as
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published by the Free Software Foundation. This program is
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distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
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License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with this program; if not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef __NEWAMP2__
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#define __NEWAMP2__
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#define NEWAMP2_N_INDEXES 4 /* Number of indexes to pack: vq1, vq2, energy, Wo */
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#define NEWAMP2_PHASE_NFFT 128 /* size of FFT used for phase synthesis */
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#define NEWAMP2_K 29 /* rate K vector length */
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#define NEWAMP2_16K_K 40 /* rate K vector length for 16k Mode */
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#include "codec2_fft.h"
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#include "comp.h"
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void n2_mel_sample_freqs_kHz(float rate_K_sample_freqs_kHz[], int K);
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void n2_resample_const_rate_f(C2CONST *c2const, MODEL *model, float rate_K_vec[], float rate_K_sample_freqs_kHz[], int K);
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void n2_rate_K_mbest_encode(int *indexes, float *x, float *xq, int ndim);
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void n2_resample_rate_L(C2CONST *c2const, MODEL *model, float rate_K_vec[], float rate_K_sample_freqs_kHz[], int K,int plosive_flag);
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void n2_post_filter_newamp2(float vec[], float sample_freq_kHz[], int K, float pf_gain);
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void newamp2_interpolate(float interpolated_surface_[], float left_vec[], float right_vec[], int K,int plosive_flag);
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void newamp2_model_to_indexes(C2CONST *c2const,
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int indexes[],
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MODEL *model,
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float rate_K_vec[],
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float rate_K_sample_freqs_kHz[],
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int K,
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float *mean,
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float rate_K_vec_no_mean[],
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float rate_K_vec_no_mean_[],
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int plosiv
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);
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void newamp2_indexes_to_rate_K_vec(float rate_K_vec_[],
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float rate_K_vec_no_mean_[],
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float rate_K_sample_freqs_kHz[],
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int K,
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float *mean_,
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int indexes[],
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float pf_gain);
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void newamp2_16k_indexes_to_rate_K_vec(float rate_K_vec_[],
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float rate_K_vec_no_mean_[],
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float rate_K_sample_freqs_kHz[],
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int K,
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float *mean_,
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int indexes[],
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float pf_gain);
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void newamp2_indexes_to_model(C2CONST *c2const,
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MODEL model_[],
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COMP H[],
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float interpolated_surface_[],
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float prev_rate_K_vec_[],
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float *Wo_left,
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int *voicing_left,
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float rate_K_sample_freqs_kHz[],
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int K,
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codec2_fft_cfg fwd_cfg,
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codec2_fft_cfg inv_cfg,
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int indexes[],
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float pf_gain,
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int flag16k);
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#endif
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