不韋 呂 / Mbed 2 deprecated F746_RealtimeSpectrumAnalyzer

Realtime spectrum analyzer. Using FFT, linear prediction, or cepstrum smoothing. Version using MEMS microphone and CODEC, named "F746_RealtimeSpectrumAnalyzer_MEMS_Mic" is registered. リアルタイム スペクトル解析器．解析の手法：FFT，線形予測法，ケプストラムによる平滑化の３種類．このプログラムの説明は，CQ出版社のインターフェース誌，2016年4月号に掲載．外付けのマイクまたは他の信号源等を A0 に接続する．線形予測法，ケプストラムは，スペクトル解析の対象を音声信号に想定してパラメータを設定している．MEMS マイクと CODEC を使ったバージョンを "F746_RealtimeSpectrumAnalyzer_MEMS_Mic" として登録．

Dependencies:   BSP_DISCO_F746NG BUTTON_GROUP LCD_DISCO_F746NG TS_DISCO_F746NG UIT_FFT_Real mbed

Diff: MyClasses/AnalysisSelector.hpp

Revision:
6:b27ef8d98edc
Parent:
4:99d4d5ea06a2
Child:
9:99c55850cb41
--- a/MyClasses/AnalysisSelector.hpp	Tue Dec 15 13:27:07 2015 +0000
+++ b/MyClasses/AnalysisSelector.hpp	Fri Dec 18 10:09:31 2015 +0000
@@ -2,7 +2,7 @@
 //  Class for selecting spectrum analysis method and
 //  displaying
 //
-//  2015/12/15, Copyright (c) 2015 MIKAMI, Naoki
+//  2015/12/18, Copyright (c) 2015 MIKAMI, Naoki
 //-------------------------------------------------------
 
 #include "SpectrumDisplay.hpp"
@@ -15,6 +15,37 @@
 {
     class Selector
     {
+    public:
+        Selector(SpectrumDisplay& disp, ButtonGroup& method,
+                 int nData, int nFft, int order, int nLifter,
+                 uint32_t touchedColor)
+            : disp_(disp), method_(method), N_DATA_(nData),
+              TOUCHED_COLOR_(touchedColor), 
+              sn_f_(new float[nData]), dbData_(new float[nFft/2+1])
+        {
+            obj_[0] = new FftAnalyzer(nData, nFft);
+            obj_[1] = new LpcAnalyzer(nData, nFft, order);
+            obj_[2] = new CepstrumAnalyzer(nData, nFft, nLifter);
+        }
+
+        ~Selector()
+        {
+            delete[] sn_f_;
+            delete[] dbData_;
+            for (int n=0; n<3; n++) delete obj_[n];
+        }
+
+        void Execute(const int16_t sn[], int& touchedNum)
+        {
+            method_.GetTouchedNumber(touchedNum, TOUCHED_COLOR_);
+            if (touchedNum >=0)
+            {
+                for (int n=0; n<N_DATA_; n++) sn_f_[n] = sn[n];
+                obj_[touchedNum]->Execute(sn_f_, dbData_);
+                disp_.Draw(dbData_);
+            }
+        }
+
     private:
         SpectrumDisplay& disp_;
         ButtonGroup& method_;
@@ -29,36 +60,5 @@
         // disallow copy constructor and assignment operator
         Selector(const Selector& );
         Selector& operator=(const Selector& );
-
-    public:
-        Selector(SpectrumDisplay& disp, ButtonGroup& method,
-                 int nData, int nFft, int order, int nLifter,
-                 uint32_t touchedColor)
-            : disp_(disp), method_(method), N_DATA_(nData),
-              TOUCHED_COLOR_(touchedColor), 
-              sn_f_(new float[nData]), dbData_(new float[nFft/2+1])
-        {
-            obj_[0] = new FftAnalyzer(nData, nFft);
-            obj_[1] = new LpcAnalyzer(nData, nFft, order);
-            obj_[2] = new CepstrumAnalyzer(nData, nFft, nLifter);
-        }
-        
-        ~Selector()
-        {
-            delete[] sn_f_;
-            delete[] dbData_;
-            for (int n=0; n<3; n++) delete obj_[n];
-        }
-        
-        void Execute(const int16_t sn[], int& touchedNum)
-        {
-            method_.GetTouchedNumber(touchedNum, TOUCHED_COLOR_);
-            if (touchedNum >=0)
-            {
-                for (int n=0; n<N_DATA_; n++) sn_f_[n] = sn[n];
-                obj_[touchedNum]->Execute(sn_f_, dbData_);
-                disp_.Draw(dbData_);
-            }
-        } 
     };
 }