view trunk/C++/CAR.H @ 690:76f749d29b48

Fix memory leak in CARFAC.

Also get rid of most uses of auto, which tend to hurt readability
unless the type name is particularly long, especially when it masks
pointers.

// Author Matt Flax <flatmax@>
//
// This C++ file is part of an implementation of Lyon's cochlear model:
// "Cascade of Asymmetric Resonators with Fast-Acting Compression"
// to supplement Lyon's upcoming book "Human and Machine Hearing"
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#ifndef CAR_H_
#define CAR_H_

#include "EarComponent.H" // includes the various {CAR, IHC, AGC} {Coeff, Param, State} .H files

class Ear;

/**
    \author {Matt Flax <flatmax\@>}
    \date 2013.02.08

Cascade of asymmetric resonators (CAR).
*/
class CAR : public EarComponent<CARCoeff, CARParam, CARState> {
    Array<FP_TYPE, Dynamic,1> pole_freqs; ///< The vector of pole frequencies used in filter design and variable estimation

    protected:

    /** Method to design the auditory filter coefficients
    \param fs The sample rate in Hz
    \param n_ch The number of channels. The CAR.coeff are one row per channel
    */
    void designFilters(FP_TYPE fs, int n_ch);

    /** Return the stage gain g needed to get unity gain at DC
    \param relative_undamping Dick whats this ?
    \return The stage gain required to obtain 0 dB at DC.
    */
    Array<FP_TYPE, Dynamic, 1> stageG(Array<FP_TYPE, Dynamic, 1> &relative_undamping);

    public:
        CAR();
        virtual ~CAR();

    friend class Ear;
};

#endif // CAR_H_