Kenji Arai
CW Decoder (Morse code decoder) 1st release version. Only run on Nucleo-F446RE mbed board.
Dependencies: Array_Matrix F446_AD_DA ST7565_SPI_LCD TextLCD UIT_FFT_Real
Fork of
F446_MySoundMachine
by 
不韋 呂
Base on F446_MySoundMachine program created by 不韋 呂-san.
Thanks to 不韋 呂-san making fundamental part such as FFT and ADC high speed interrupt driven program.
I just combined LCD and show CW code.
Diff: SignalProcessing/ReverbUnit.hpp
- Revision:
- 6:5e21ac9f0550
- Parent:
- 5:503bd366fd73
--- a/SignalProcessing/ReverbUnit.hpp Tue Jan 31 12:52:35 2017 +0000
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,93 +0,0 @@
-//--------------------------------------------------------------
-// Reverb unit
-// 2017/01/31, Copyright (c) 2017 MIKAMI, Naoki
-//--------------------------------------------------------------
-
-#ifndef REVERB_UNIT_HPP
-#define REVERB_UNIT_HPP
-
-#include "mbed.h"
-#include "Array.hpp"
-namespace Mikami
-{
- // Base class for reverb unit
- class Reverb
- {
- public:
- // Constructor
- Reverb(int delay) : DELAY_(delay), un_(delay)
- {
- ptr_ = 0;
- Clear();
- }
-
- ~Reverb() {}
-
- // Execute of filter (pure virtual function)
- virtual float Execute(float x) = 0;
-
- // Clear internal delay elements
- void Clear()
- { for (int n=0; n<DELAY_; n++) un_[n] = 0; }
-
- protected:
- float Get() { return un_[ptr_]; }
-
- void Set(float x)
- {
- un_[ptr_] = x;
- if (++ptr_ >= DELAY_) ptr_ = 0;
- }
-
- private:
- const int DELAY_;
- Array<float> un_; // for delay
- int ptr_;
-
- // disallow copy constructor and assignment operator
- Reverb(const Reverb&);
- Reverb& operator=(const Reverb&);
- };
-
- // Reverb unit using comb filter
- class CombFilter : public Reverb
- {
- public:
- // Constructor
- CombFilter(float g, int delay)
- : Reverb(delay), G0_(g) {}
-
- // Execute comb filter
- virtual float Execute(float x)
- {
- float yn = Reverb::Get();
- Reverb::Set(x + G0_*yn);
- return yn;
- }
-
- private:
- const float G0_;
- };
-
- // Reverb unit using allpass filter
- class AllPassFilter : public Reverb
- {
- public:
- // Constructor
- AllPassFilter(float g, int delay)
- : Reverb(delay), G0_(g) {}
-
- // Execute allpass filter
- virtual float Execute(float x)
- {
- float un = x + G0_*Reverb::Get();
- float yn = -G0_*un + Reverb::Get();
- Reverb::Set(un);
- return yn;
- }
-
- private:
- const float G0_;
- };
-}
-#endif // REVERB_UNIT_HPP