/usr/include/mffm/MooreSpread.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 | /*
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 MOORESPREAD_H_
#define MOORESPREAD_H_
#include <iostream>
//#include "../gammachirp/GCFB.H"
//#include <mffm/GTFB.H>
/** Finds the Moore spreading function.
First implementation for the Gamma Chirp filter bank, but possible for
any perceptual filter bank.
References :
[1] Moore B.C.J., Glasberg B.R. (1983) ``Suggested formulae for
calculating auditory-filter bandwidths and excitation patterns'',
J. Acous. Soc. Am., 74, 750-753
*/
class MooreSpread {
protected:
int bankCount; //!< The number of sub-bankds in the filter bank
double *memory; //!< Memory used in the operation
double **spread; //!< The Moore/Glasberg spreading due to the filters
public:
double *centreFreqs; //!< The centreFrequencies of each filter bank
MooreSpread(int fBankCount); //!< Instantiation requiring the number of filter banks
~MooreSpread(void); //!< Destructor
void setCFreq(int which, double value){centreFreqs[which]=value;} //!< Method for setting the centre freqs
/** Method for finding the Moore Spread
* @param filterBankOutput The output of the filter bank, an array of magnitudes for each filter
* @param sampleCount The number of samples in each sub-band or filter
* @param sampleFreq The sample frequency of the time domain signal
*/
void excite(double **filterBankOutput, int sampleCount, int sampleFreq);
};
#endif // MOORESPREAD_H_
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