Integrated program of 4 different kinds of application programs for processing sound signal. 4種類のサウンド信号処理を統合したプログラム.
Dependencies: F746_GUI F746_SAI_IO FrequencyResponseDrawer SD_PlayerSkeleton UIT_FFT_Real
MyAcousticEffector_MIC/ReverbUnit.hpp@16:d60e5187fd31, 2017-04-27 (annotated)
- Committer:
- MikamiUitOpen
- Date:
- Thu Apr 27 23:55:53 2017 +0000
- Revision:
- 16:d60e5187fd31
- Parent:
- 15:fac50dd1de44
17
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
MikamiUitOpen | 15:fac50dd1de44 | 1 | //-------------------------------------------------------------- |
MikamiUitOpen | 15:fac50dd1de44 | 2 | // Reverb unit: comb filter and all-pass filter |
MikamiUitOpen | 15:fac50dd1de44 | 3 | // 2017/04/08, Copyright (c) 2017 MIKAMI, Naoki |
MikamiUitOpen | 15:fac50dd1de44 | 4 | //-------------------------------------------------------------- |
MikamiUitOpen | 15:fac50dd1de44 | 5 | |
MikamiUitOpen | 15:fac50dd1de44 | 6 | #ifndef REVERB_UNIT_HPP |
MikamiUitOpen | 15:fac50dd1de44 | 7 | #define REVERB_UNIT_HPP |
MikamiUitOpen | 15:fac50dd1de44 | 8 | |
MikamiUitOpen | 15:fac50dd1de44 | 9 | #include "ReverbUnitBase.hpp" |
MikamiUitOpen | 15:fac50dd1de44 | 10 | |
MikamiUitOpen | 15:fac50dd1de44 | 11 | namespace Mikami |
MikamiUitOpen | 15:fac50dd1de44 | 12 | { |
MikamiUitOpen | 15:fac50dd1de44 | 13 | // Reverb unit using comb filter |
MikamiUitOpen | 15:fac50dd1de44 | 14 | class CombFilter : public ReverbBase |
MikamiUitOpen | 15:fac50dd1de44 | 15 | { |
MikamiUitOpen | 15:fac50dd1de44 | 16 | public: |
MikamiUitOpen | 15:fac50dd1de44 | 17 | // Constructor |
MikamiUitOpen | 15:fac50dd1de44 | 18 | CombFilter(float g, int delay) |
MikamiUitOpen | 15:fac50dd1de44 | 19 | : ReverbBase(delay), G_C_(g) {} |
MikamiUitOpen | 15:fac50dd1de44 | 20 | |
MikamiUitOpen | 15:fac50dd1de44 | 21 | // Execute comb filter with variable delay |
MikamiUitOpen | 15:fac50dd1de44 | 22 | float Execute(float x, int n) |
MikamiUitOpen | 15:fac50dd1de44 | 23 | { |
MikamiUitOpen | 15:fac50dd1de44 | 24 | float yn = Get(n); |
MikamiUitOpen | 15:fac50dd1de44 | 25 | Set(x + G_C_*yn); |
MikamiUitOpen | 15:fac50dd1de44 | 26 | return yn; |
MikamiUitOpen | 15:fac50dd1de44 | 27 | } |
MikamiUitOpen | 15:fac50dd1de44 | 28 | |
MikamiUitOpen | 15:fac50dd1de44 | 29 | private: |
MikamiUitOpen | 15:fac50dd1de44 | 30 | const float G_C_; |
MikamiUitOpen | 15:fac50dd1de44 | 31 | |
MikamiUitOpen | 15:fac50dd1de44 | 32 | // disallow copy constructor and assignment operator |
MikamiUitOpen | 15:fac50dd1de44 | 33 | CombFilter(const CombFilter&); |
MikamiUitOpen | 15:fac50dd1de44 | 34 | CombFilter& operator=(const CombFilter&); |
MikamiUitOpen | 15:fac50dd1de44 | 35 | }; |
MikamiUitOpen | 15:fac50dd1de44 | 36 | |
MikamiUitOpen | 15:fac50dd1de44 | 37 | // Reverb unit using allpass filter |
MikamiUitOpen | 15:fac50dd1de44 | 38 | class AllPassFilter : public ReverbBase |
MikamiUitOpen | 15:fac50dd1de44 | 39 | { |
MikamiUitOpen | 15:fac50dd1de44 | 40 | public: |
MikamiUitOpen | 15:fac50dd1de44 | 41 | // Constructor |
MikamiUitOpen | 15:fac50dd1de44 | 42 | AllPassFilter(float g, int delay) |
MikamiUitOpen | 15:fac50dd1de44 | 43 | : ReverbBase(delay), G_A_(g) {} |
MikamiUitOpen | 15:fac50dd1de44 | 44 | |
MikamiUitOpen | 15:fac50dd1de44 | 45 | // Execute allpass filter |
MikamiUitOpen | 15:fac50dd1de44 | 46 | float Execute(float x) |
MikamiUitOpen | 15:fac50dd1de44 | 47 | { |
MikamiUitOpen | 15:fac50dd1de44 | 48 | float un = x + G_A_*Get(); |
MikamiUitOpen | 15:fac50dd1de44 | 49 | float yn = -G_A_*un + Get(); |
MikamiUitOpen | 15:fac50dd1de44 | 50 | Set(un); |
MikamiUitOpen | 15:fac50dd1de44 | 51 | return yn; |
MikamiUitOpen | 15:fac50dd1de44 | 52 | } |
MikamiUitOpen | 15:fac50dd1de44 | 53 | |
MikamiUitOpen | 15:fac50dd1de44 | 54 | private: |
MikamiUitOpen | 15:fac50dd1de44 | 55 | const float G_A_; |
MikamiUitOpen | 15:fac50dd1de44 | 56 | |
MikamiUitOpen | 15:fac50dd1de44 | 57 | // disallow copy constructor and assignment operator |
MikamiUitOpen | 15:fac50dd1de44 | 58 | AllPassFilter(const AllPassFilter&); |
MikamiUitOpen | 15:fac50dd1de44 | 59 | AllPassFilter& operator=(const AllPassFilter&); |
MikamiUitOpen | 15:fac50dd1de44 | 60 | }; |
MikamiUitOpen | 15:fac50dd1de44 | 61 | } |
MikamiUitOpen | 15:fac50dd1de44 | 62 | #endif // REVERB_UNIT_HPP |