view src/Modules/BMM/ModuleGammatone.h @ 10:d54efba7f09b

- Updated contact details and copyright lines to reflect actual copyright ownership
 (the University of Cambridge's intellectual property policy says that students own the
copyright on stuff they write unless there is a funding agreement saying otherwise)

// Copyright 2009-2010, Thomas Walters
//
// AIM-C: A C++ implementation of the Auditory Image Model
// http://www.acousticscale.org/AIMC
//
// 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/>.

/*! \file
 *  \brief Slaney's gammatone filterbank
 *
 *  \author Thomas Walters <[e-mail]>
 *  \date created 2009/11/13
 *  \version \$Id$
 */
#ifndef _AIMC_MODULES_BMM_GAMMATONE_H_
#define _AIMC_MODULES_BMM_GAMMATONE_H_

#include <vector>

#include "Support/Module.h"
#include "Support/Parameters.h"
#include "Support/SignalBank.h"

namespace aimc {
using std::vector;
class ModuleGammatone : public Module {
 public:
  explicit ModuleGammatone(Parameters *params);
  virtual ~ModuleGammatone();
  /*! \brief Process a buffer
   */
  virtual void Process(const SignalBank &input);

 private:
  virtual bool InitializeInternal(const SignalBank& input);
  virtual void ResetInternal();
  vector<vector<float> > forward_;
  vector<vector<float> > back_;
  vector<vector<float> > state_;
  vector<float> centre_frequencies_;
  int num_channels_;
  float max_frequency_;
  float min_frequency_;
};
}  // namespace aimc
#endif  // _AIMC_MODULES_BMM_GAMMATONE_H_