/usr/include/mffm/AudioMask.H is in libaudiomask-dev 1.0-2ubuntu1.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 | /*
libaudiomask - hybrid simultaneous audio masking threshold evaluation library
Copyright (C) 2000-2010 Dr Matthew Raphael Flax
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 AUDIOMASK_H_
#define AUDIOMASK_H_
#include "MooreSpread.H"
/**
* Evaluates the Dr M.R. Flax (2000) hybrid simultaneous audio mask
* Handles the evaluation of the simultaneous audio mask given a filter bank sub-banded output and sample count
*/
class AudioMask : private MooreSpread {
double *excitation; //!< The excitation of the roex filters
double *Lvmu;
double factor;
protected:
int fs; //!< Sample frequency
public:
double *mask; //!< The audio mask
double max; //!< The maximum value of the mask
/**
* Constructs the memory and factors for calculating the audio mask
* @ sampFreq The sample frequency
* @ fBankCount The number of filter sub-bands
*/
AudioMask(int sampFreq, int fBankCount);
~AudioMask(void); //!< Deconstructor
/**
* Method for setting the centre freqs
* @ which The sub-band
* @ value The correcponding central frequency
*/
void setCFreq(int which, double value){MooreSpread::setCFreq(which, value);}
/**
* Method for finding the Preceptual Audio Mask using the Terhardt model
* @ filterBankOutput The output of the filter bank
* @ sampleCount The number of samples
*/
void exciteTerhardt(double **filterBankOutput, int sampleCount);
void exciteBeerends(double **filterBankOutput, int sampleCount); /// Method for finding the Preceptual Audio Mask using the Beerends model
};
#endif //AUDIOMASK_H_
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