alexbrandmeyer@609: //
alexbrandmeyer@609: //  ear.h
alexbrandmeyer@609: //  CARFAC Open Source C++ Library
alexbrandmeyer@609: //
alexbrandmeyer@609: //  Created by Alex Brandmeyer on 5/10/13.
alexbrandmeyer@609: //
alexbrandmeyer@609: // This C++ file is part of an implementation of Lyon's cochlear model:
alexbrandmeyer@609: // "Cascade of Asymmetric Resonators with Fast-Acting Compression"
alexbrandmeyer@609: // to supplement Lyon's upcoming book "Human and Machine Hearing"
alexbrandmeyer@609: //
alexbrandmeyer@609: // Licensed under the Apache License, Version 2.0 (the "License");
alexbrandmeyer@609: // you may not use this file except in compliance with the License.
alexbrandmeyer@609: // You may obtain a copy of the License at
alexbrandmeyer@609: //
alexbrandmeyer@609: //     http://www.apache.org/licenses/LICENSE-2.0
alexbrandmeyer@609: //
alexbrandmeyer@609: // Unless required by applicable law or agreed to in writing, software
alexbrandmeyer@609: // distributed under the License is distributed on an "AS IS" BASIS,
alexbrandmeyer@609: // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
alexbrandmeyer@609: // See the License for the specific language governing permissions and
alexbrandmeyer@609: // limitations under the License.
alexbrandmeyer@609: 
alexbrandmeyer@609: #ifndef CARFAC_Open_Source_C__Library_Ear_h
alexbrandmeyer@609: #define CARFAC_Open_Source_C__Library_Ear_h
alexbrandmeyer@609: 
alexbrandmeyer@609: #include "car_state.h"
alexbrandmeyer@609: #include "ihc_state.h"
alexbrandmeyer@609: #include "agc_state.h"
alexbrandmeyer@609: 
alexbrandmeyer@609: 
alexbrandmeyer@609: class Ear {
alexbrandmeyer@609: public:
alexbrandmeyer@609:   int n_ch_;
alexbrandmeyer@609:   FPType max_channels_per_octave_;
alexbrandmeyer@609:   CARParams car_params_;
alexbrandmeyer@609:   IHCParams ihc_params_;
alexbrandmeyer@609:   AGCParams agc_params_;
alexbrandmeyer@609:   CARCoeffs car_coeffs_;
alexbrandmeyer@609:   IHCCoeffs ihc_coeffs_;
alexbrandmeyer@609:   AGCCoeffs agc_coeffs_;
alexbrandmeyer@609:   CARState car_state_;
alexbrandmeyer@609:   IHCState ihc_state_;
alexbrandmeyer@609:   AGCState agc_state_;
alexbrandmeyer@609:   
alexbrandmeyer@609:   void InitEar(long fs, CARParams car_p, IHCParams ihc_p, AGCParams agc_p);
alexbrandmeyer@609:   FloatArray CARStep(FPType input);
alexbrandmeyer@609:   FloatArray OHC_NLF(FloatArray velocities);
alexbrandmeyer@609:   FloatArray IHCStep(FloatArray car_out);
alexbrandmeyer@609:   bool AGCStep(FloatArray ihc_out);
alexbrandmeyer@609:   bool AGCRecurse(int stage, FloatArray agc_in);
alexbrandmeyer@609:   FloatArray AGCSpatialSmooth(int stage, FloatArray stage_state);
alexbrandmeyer@609:   FloatArray AGCSmoothDoubleExponential(FloatArray stage_state);
alexbrandmeyer@609: };
alexbrandmeyer@609: 
alexbrandmeyer@609: #endif