diff carfac/ihc_params.cc @ 609:aefe2ca0674f

First version of a C++ implementation by Alex Brandmeyer

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/carfac/ihc_params.cc	Mon May 13 22:51:15 2013 +0000
@@ -0,0 +1,65 @@
+//
+//  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"
+
+
+//Default constructor for IHCParams initializes with the settings from Lyon's
+//book 'Human and Machine Hearing'
+IHCParams::IHCParams(){
+  just_hwr_ = false; //not just a simple HWR
+  one_cap_ = true; //uses the Allen model, as in Lyon's book
+  tau_lpf_ = 0.000080; //80 microseconds smoothing twice
+  tau1_out_ = 0.0005; //depletion tau is pretty fast
+  tau1_in_ = 0.010; //recovery tau is slower
+  tau2_out_ = 0.0025;
+  tau2_in_ = 0.005;
+  ac_corner_hz_ = 20;
+}
+
+//OutputParams method uses <iostream> for debugging purposes, could go in the
+//final version
+void IHCParams::OutputParams(){
+  std::cout << "IHCParams Values" << std::endl;
+  std::cout << "****************" << std::endl;
+  std::cout << "just_hwr_ = " << just_hwr_ << std::endl;
+  std::cout << "one_cap_ = " << one_cap_ << std::endl;
+  std::cout << "tau_lpf_ = " << tau_lpf_ << std::endl;
+  std::cout << "tau1_out_ = " << tau1_out_ << std::endl;
+  std::cout << "tau1_in_ = " << tau1_in_ << std::endl;
+  std::cout << "tau2_out_ = " << tau2_out_ << std::endl;
+  std::cout << "tau2_in_ = " << tau2_in_ << std::endl;
+  std::cout << "ac_corner_hz_ = " << ac_corner_hz_ << std::endl << std::endl;
+}
+
+//SetParams method allows for use of different inner hair cell parameters
+void IHCParams::SetParams(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;  
+}
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