Audio singal input and output example for DISCO-F746. Input: MEMS mic, Output: CN10 OUT, Acoustic effect: echo and frequency shift. DISCO-F746 によるオーディオ信号入出力.入力:MEMS マイク,出力:CN10 OUT,音響効果:エコー,周波数変換.
Dependencies: F746_GUI F746_SAI_IO
MyAcousticEffector_MIC/Reverberator.hpp@10:56f2f01df983, 2017-04-10 (annotated)
- Committer:
- MikamiUitOpen
- Date:
- Mon Apr 10 13:44:13 2017 +0000
- Revision:
- 10:56f2f01df983
11
Who changed what in which revision?
User | Revision | Line number | New contents of line |
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MikamiUitOpen | 10:56f2f01df983 | 1 | //-------------------------------------------------------------- |
MikamiUitOpen | 10:56f2f01df983 | 2 | // Reverberation generator |
MikamiUitOpen | 10:56f2f01df983 | 3 | // |
MikamiUitOpen | 10:56f2f01df983 | 4 | // 2017/04/10, Copyright (c) 2017 MIKAMI, Naoki |
MikamiUitOpen | 10:56f2f01df983 | 5 | //-------------------------------------------------------------- |
MikamiUitOpen | 10:56f2f01df983 | 6 | |
MikamiUitOpen | 10:56f2f01df983 | 7 | #ifndef REVERBERATION_SYSTEM_HPP |
MikamiUitOpen | 10:56f2f01df983 | 8 | #define REVERBERATION_SYSTEM_HPP |
MikamiUitOpen | 10:56f2f01df983 | 9 | |
MikamiUitOpen | 10:56f2f01df983 | 10 | #include "ReverbUnit.hpp" |
MikamiUitOpen | 10:56f2f01df983 | 11 | #include "ProcessingBase.hpp" |
MikamiUitOpen | 10:56f2f01df983 | 12 | |
MikamiUitOpen | 10:56f2f01df983 | 13 | namespace Mikami |
MikamiUitOpen | 10:56f2f01df983 | 14 | { |
MikamiUitOpen | 10:56f2f01df983 | 15 | class Reverberator : public ProcessingBase |
MikamiUitOpen | 10:56f2f01df983 | 16 | { |
MikamiUitOpen | 10:56f2f01df983 | 17 | public: |
MikamiUitOpen | 10:56f2f01df983 | 18 | Reverberator(float gC = 0.8f, float gA = 0.6f) |
MikamiUitOpen | 10:56f2f01df983 | 19 | : G0_(1.0f - gC), |
MikamiUitOpen | 10:56f2f01df983 | 20 | DELAY_INIT_(6000), variableDelay_(6000), |
MikamiUitOpen | 10:56f2f01df983 | 21 | cmF1_(gC, 887+1500), cmF2_(gC, 1153+3000), |
MikamiUitOpen | 10:56f2f01df983 | 22 | cmF3_(gC, 1499+6000), |
MikamiUitOpen | 10:56f2f01df983 | 23 | apF1_(gA, 97), apF2_(gA, 131) {} |
MikamiUitOpen | 10:56f2f01df983 | 24 | |
MikamiUitOpen | 10:56f2f01df983 | 25 | virtual float Execute(float sn) |
MikamiUitOpen | 10:56f2f01df983 | 26 | { |
MikamiUitOpen | 10:56f2f01df983 | 27 | float xn = G0_*sn; |
MikamiUitOpen | 10:56f2f01df983 | 28 | float yn = cmF1_.Execute(xn, variableDelay_/4) |
MikamiUitOpen | 10:56f2f01df983 | 29 | + cmF2_.Execute(xn, variableDelay_/2) |
MikamiUitOpen | 10:56f2f01df983 | 30 | + cmF3_.Execute(xn, variableDelay_); |
MikamiUitOpen | 10:56f2f01df983 | 31 | yn = apF2_.Execute(apF1_.Execute(yn)); |
MikamiUitOpen | 10:56f2f01df983 | 32 | yn = yn + xn; // add direct input signal |
MikamiUitOpen | 10:56f2f01df983 | 33 | return yn; |
MikamiUitOpen | 10:56f2f01df983 | 34 | } |
MikamiUitOpen | 10:56f2f01df983 | 35 | |
MikamiUitOpen | 10:56f2f01df983 | 36 | void SetDelay(int n) { variableDelay_ = DELAY_INIT_ - n; } |
MikamiUitOpen | 10:56f2f01df983 | 37 | |
MikamiUitOpen | 10:56f2f01df983 | 38 | private: |
MikamiUitOpen | 10:56f2f01df983 | 39 | const float G0_; |
MikamiUitOpen | 10:56f2f01df983 | 40 | const int DELAY_INIT_; |
MikamiUitOpen | 10:56f2f01df983 | 41 | int variableDelay_; |
MikamiUitOpen | 10:56f2f01df983 | 42 | |
MikamiUitOpen | 10:56f2f01df983 | 43 | CombFilter cmF1_, cmF2_, cmF3_; |
MikamiUitOpen | 10:56f2f01df983 | 44 | AllPassFilter apF1_, apF2_; |
MikamiUitOpen | 10:56f2f01df983 | 45 | |
MikamiUitOpen | 10:56f2f01df983 | 46 | // disallow copy constructor and assignment operator |
MikamiUitOpen | 10:56f2f01df983 | 47 | Reverberator(const Reverberator&); |
MikamiUitOpen | 10:56f2f01df983 | 48 | Reverberator& operator=(const Reverberator&); |
MikamiUitOpen | 10:56f2f01df983 | 49 | }; |
MikamiUitOpen | 10:56f2f01df983 | 50 | } |
MikamiUitOpen | 10:56f2f01df983 | 51 | #endif // REVERBERATION_SYSTEM_HPP |