saf_utility_dvf.h

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/*
* Copyright 2020-2021 Michael McCrea, Leo McCormack
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
* REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
* AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
* INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
* LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
* OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
* PERFORMANCE OF THIS SOFTWARE.
*/
 
#ifndef SAF_DVF_H_INCLUDED
#define SAF_DVF_H_INCLUDED
 
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
 
#include <stdio.h>
#include <math.h>
 
void calcDVFCoeffs(
                   /* Input Arguments */
                   float alpha,
                   float rho,
                   float fs,
                   /* Output Arguments */
                   float * b,
                   float * a);
 
void interpDVFShelfParams(
                         /* Input Arguments */
                         float theta,
                         float rho,
                         /* Output Arguments */
                         float* iG0,
                         float* iGInf,
                         float* iFc);
 
void dvfShelfCoeffs(/* Input Arguments */
                   float g0,
                   float gInf,
                   float fc,
                   float fs,
                   /* Output Arguments */
                   float* b0,
                   float* b1,
                   float* a1);
 
void calcDVFShelfParams(int i,
                        float rho,
                        float* g0,
                        float* gInf,
                        float* fc);
 
void doaToIpsiInteraural(float azimuth,
                         float elevation,
                         float* alphaLR,
                         float* betaLR);
 
#ifdef __cplusplus
}/* extern "C" */
#endif /* __cplusplus */
 
#endif /* SAF_DVF_H_INCLUDED */