comparison trunk/C++/CARParam.H @ 597:359bcd461dd1

First commit. Refer to the api [1] 'Philosophy of the implementation' for information on the approach used to implement CARFAC in C++.
[1] aimc/C++/api/html/index.html

+// Copyright 2013 Matt R. Flax <flatmax\@> All Rights Reserved.
+// 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 CARPARAMS_H_
+#define CARPARAMS_H_
+
+#include "Parameters.H"
+
+/**
+    \author {Matt Flax <flatmax\@>}
+    \date 2013.02.08
+
+Parameters for the Cascaded Auditory Resonators
+*/
+class CARParam : public Parameters {
+    FP_TYPE velocity_scale; ///< for the velocity nonlinearity
+    FP_TYPE v_offset; ///<  offset gives a quadratic part
+    FP_TYPE min_zeta; ///<  minimum damping factor in mid-freq channels
+    FP_TYPE max_zeta; ///<  maximum damping factor in mid-freq channels
+    FP_TYPE first_pole_theta; ///< Dick, whats this ?
+    FP_TYPE zero_ratio; ///<  how far zero is above pole
+    FP_TYPE high_f_damping_compression; ///<  0 to 1 to compress zeta
+    FP_TYPE ERB_per_step; ///<  assume G&M's ERB formula
+    FP_TYPE min_pole_Hz; ///< Dick, whats this ?
+    FP_TYPE ERB_break_freq; ///<  Greenwood map's break freq.
+    FP_TYPE ERB_Q; ///<  Glasberg and Moore's high-cf ratio
+
+public:
+
+    /// Constructor with default parameter values
+    CARParam(FP_TYPE velocity_scale_=0.1, FP_TYPE v_offset_=0.04, FP_TYPE min_zeta_=0.10, FP_TYPE max_zeta_=0.35,
+             FP_TYPE first_pole_theta_=0.85*M_PI, FP_TYPE zero_ratio_=sqrt(2.), FP_TYPE high_f_damping_compression_=0.5,
+             FP_TYPE ERB_per_step_=0.5, FP_TYPE min_pole_Hz_=30., FP_TYPE ERB_break_freq_=165.3,
+             FP_TYPE ERB_Q_=1000./(24.7*4.37));
+    virtual ~CARParam(); ///< Destructor
+};
+
+#endif // CARPARAMS_H_