view trunk/carfac/ihc_params.cc @ 621:d763637a05c5

Second check-in of Alex Brandmeyer's C++ implementation of CARFAC. Addressed style issues and completed implementation of remaining functions. Still needs proper testing of the output stages against the MATLAB version, and runtime functions need improvements in efficiency.

//
//  ihc_params.cc
//  CARFAC Open Source C++ Library
//
//  Created by Alex Brandmeyer on 5/10/13.
//
// 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.

#include "ihc_params.h"

// The default constructor for IHCParams initializes with the settings from
// Lyon's book 'Human and Machine Hearing'
IHCParams::IHCParams() {
  just_hwr_ = false;
  one_cap_ = true;
  tau_lpf_ = 0.000080;
  tau1_out_ = 0.0005;
  tau1_in_ = 0.010;
  tau2_out_ = 0.0025;
  tau2_in_ = 0.005;
  ac_corner_hz_ = 20;
}

// The overloaded constructor allows for use of different inner hair cell
// parameters.
IHCParams::IHCParams(bool jh, bool oc, FPType tlpf, FPType t1out,
                          FPType t1in, FPType t2out, FPType t2in,
                          FPType acchz) {
  just_hwr_ = jh;
  one_cap_ = oc;
  tau_lpf_ = tlpf;
  tau1_out_ = t1out;
  tau1_in_ = t1in;
  tau2_out_ = t2out;
  tau2_in_ = t2in;
  ac_corner_hz_ = acchz;  
}