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EnvelopeAR.h@24:e9fbadd15e90, 2017-09-28 (annotated)
- Committer:
- ryood
- Date:
- Thu Sep 28 01:21:04 2017 +0000
- Revision:
- 24:e9fbadd15e90
- Parent:
- 22:a3bb7594f9bb
- Child:
- 25:b4977c7e0db7
correct EnvelopeAR class: remove vLast
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
ryood | 22:a3bb7594f9bb | 1 | /* |
ryood | 22:a3bb7594f9bb | 2 | * AR Type Envelope Class |
ryood | 22:a3bb7594f9bb | 3 | * |
ryood | 22:a3bb7594f9bb | 4 | * 2017.09.18 |
ryood | 22:a3bb7594f9bb | 5 | * |
ryood | 22:a3bb7594f9bb | 6 | */ |
ryood | 22:a3bb7594f9bb | 7 | |
ryood | 22:a3bb7594f9bb | 8 | #ifndef _ENVELOPE_AR_H_ |
ryood | 22:a3bb7594f9bb | 9 | #define _ENVELOPE_AR_H_ |
ryood | 22:a3bb7594f9bb | 10 | |
ryood | 22:a3bb7594f9bb | 11 | class EnvelopeAR |
ryood | 22:a3bb7594f9bb | 12 | { |
ryood | 22:a3bb7594f9bb | 13 | public: |
ryood | 22:a3bb7594f9bb | 14 | EnvelopeAR(int _attack, int _release, float _v0, float _v1, float _v2, float _attackTauRatio=0.36f, float _releaseTauRatio=0.36f) : |
ryood | 22:a3bb7594f9bb | 15 | amplitude(_v0), |
ryood | 22:a3bb7594f9bb | 16 | v0(_v0), |
ryood | 22:a3bb7594f9bb | 17 | v1(_v1), |
ryood | 22:a3bb7594f9bb | 18 | v2(_v2), |
ryood | 22:a3bb7594f9bb | 19 | attackTauRatio(_attackTauRatio), |
ryood | 22:a3bb7594f9bb | 20 | releaseTauRatio(_releaseTauRatio) { |
ryood | 22:a3bb7594f9bb | 21 | setAttack(_attack); |
ryood | 22:a3bb7594f9bb | 22 | setRelease(_release); |
ryood | 22:a3bb7594f9bb | 23 | } |
ryood | 22:a3bb7594f9bb | 24 | |
ryood | 22:a3bb7594f9bb | 25 | ~EnvelopeAR() {} |
ryood | 22:a3bb7594f9bb | 26 | |
ryood | 22:a3bb7594f9bb | 27 | void setAttack(int _attack) { |
ryood | 22:a3bb7594f9bb | 28 | attack = _attack; |
ryood | 22:a3bb7594f9bb | 29 | tau0 = attack * attackTauRatio; |
ryood | 22:a3bb7594f9bb | 30 | } |
ryood | 22:a3bb7594f9bb | 31 | int getAttack() { |
ryood | 22:a3bb7594f9bb | 32 | return attack; |
ryood | 22:a3bb7594f9bb | 33 | } |
ryood | 22:a3bb7594f9bb | 34 | |
ryood | 22:a3bb7594f9bb | 35 | void setRelease(int _release) { |
ryood | 22:a3bb7594f9bb | 36 | release = _release; |
ryood | 22:a3bb7594f9bb | 37 | tau1 = release * releaseTauRatio; |
ryood | 22:a3bb7594f9bb | 38 | } |
ryood | 22:a3bb7594f9bb | 39 | int getRelease() { |
ryood | 22:a3bb7594f9bb | 40 | return release; |
ryood | 22:a3bb7594f9bb | 41 | } |
ryood | 22:a3bb7594f9bb | 42 | |
ryood | 22:a3bb7594f9bb | 43 | void setAttackTauRatio(float _attackTauRatio) { |
ryood | 22:a3bb7594f9bb | 44 | attackTauRatio = _attackTauRatio; |
ryood | 22:a3bb7594f9bb | 45 | tau0 = attack * attackTauRatio; |
ryood | 22:a3bb7594f9bb | 46 | } |
ryood | 22:a3bb7594f9bb | 47 | float getAttackTauRatio() { |
ryood | 22:a3bb7594f9bb | 48 | return attackTauRatio; |
ryood | 22:a3bb7594f9bb | 49 | } |
ryood | 22:a3bb7594f9bb | 50 | |
ryood | 22:a3bb7594f9bb | 51 | void setReleaseTauRatio(float _releaseTauRatio) { |
ryood | 22:a3bb7594f9bb | 52 | releaseTauRatio = _releaseTauRatio; |
ryood | 22:a3bb7594f9bb | 53 | tau1 = release * releaseTauRatio; |
ryood | 22:a3bb7594f9bb | 54 | } |
ryood | 22:a3bb7594f9bb | 55 | float getReleaseTauRatio() { |
ryood | 22:a3bb7594f9bb | 56 | return releaseTauRatio; |
ryood | 22:a3bb7594f9bb | 57 | } |
ryood | 22:a3bb7594f9bb | 58 | |
ryood | 22:a3bb7594f9bb | 59 | float getTau0() { |
ryood | 22:a3bb7594f9bb | 60 | return tau0; |
ryood | 22:a3bb7594f9bb | 61 | } |
ryood | 22:a3bb7594f9bb | 62 | float getTau1() { |
ryood | 22:a3bb7594f9bb | 63 | return tau1; |
ryood | 22:a3bb7594f9bb | 64 | } |
ryood | 22:a3bb7594f9bb | 65 | |
ryood | 22:a3bb7594f9bb | 66 | void setV0(float _v0) { |
ryood | 22:a3bb7594f9bb | 67 | v0 = _v0; |
ryood | 22:a3bb7594f9bb | 68 | } |
ryood | 22:a3bb7594f9bb | 69 | float getV0() { |
ryood | 22:a3bb7594f9bb | 70 | return v0; |
ryood | 22:a3bb7594f9bb | 71 | } |
ryood | 22:a3bb7594f9bb | 72 | void setV1(float _v1) { |
ryood | 22:a3bb7594f9bb | 73 | v1 = _v1; |
ryood | 22:a3bb7594f9bb | 74 | } |
ryood | 22:a3bb7594f9bb | 75 | float getV1() { |
ryood | 22:a3bb7594f9bb | 76 | return v1; |
ryood | 22:a3bb7594f9bb | 77 | } |
ryood | 22:a3bb7594f9bb | 78 | void setV2(float _v2) { |
ryood | 22:a3bb7594f9bb | 79 | v2 = _v2; |
ryood | 22:a3bb7594f9bb | 80 | } |
ryood | 22:a3bb7594f9bb | 81 | float getV2() { |
ryood | 22:a3bb7594f9bb | 82 | return v2; |
ryood | 22:a3bb7594f9bb | 83 | } |
ryood | 22:a3bb7594f9bb | 84 | |
ryood | 22:a3bb7594f9bb | 85 | float getAmplitude() { |
ryood | 22:a3bb7594f9bb | 86 | return amplitude; |
ryood | 22:a3bb7594f9bb | 87 | } |
ryood | 24:e9fbadd15e90 | 88 | |
ryood | 22:a3bb7594f9bb | 89 | float getAmplitude(int tick) { |
ryood | 24:e9fbadd15e90 | 90 | if (tick <= attack) { |
ryood | 22:a3bb7594f9bb | 91 | // attackの処理 |
ryood | 22:a3bb7594f9bb | 92 | amplitude = v0 + (v1 - v0) * (1 - expf(-(float)tick / tau0)); |
ryood | 22:a3bb7594f9bb | 93 | } else { |
ryood | 22:a3bb7594f9bb | 94 | // releaseの処理 |
ryood | 24:e9fbadd15e90 | 95 | float vAttack = v0 + (v1 - v0) * (1 - expf(-attack / tau0)); |
ryood | 24:e9fbadd15e90 | 96 | amplitude = (vAttack - v2) * (expf(-(float)(tick - attack) / tau1)) + v2; |
ryood | 22:a3bb7594f9bb | 97 | } |
ryood | 22:a3bb7594f9bb | 98 | return amplitude; |
ryood | 22:a3bb7594f9bb | 99 | } |
ryood | 22:a3bb7594f9bb | 100 | |
ryood | 22:a3bb7594f9bb | 101 | private: |
ryood | 22:a3bb7594f9bb | 102 | int attack; |
ryood | 22:a3bb7594f9bb | 103 | int release; |
ryood | 22:a3bb7594f9bb | 104 | float amplitude; |
ryood | 22:a3bb7594f9bb | 105 | float v0; |
ryood | 22:a3bb7594f9bb | 106 | float v1; |
ryood | 22:a3bb7594f9bb | 107 | float v2; |
ryood | 22:a3bb7594f9bb | 108 | float tau0; |
ryood | 22:a3bb7594f9bb | 109 | float tau1; |
ryood | 22:a3bb7594f9bb | 110 | float attackTauRatio; |
ryood | 22:a3bb7594f9bb | 111 | float releaseTauRatio; |
ryood | 22:a3bb7594f9bb | 112 | }; |
ryood | 22:a3bb7594f9bb | 113 | |
ryood | 22:a3bb7594f9bb | 114 | class EnvelopeParam |
ryood | 22:a3bb7594f9bb | 115 | { |
ryood | 22:a3bb7594f9bb | 116 | public: |
ryood | 22:a3bb7594f9bb | 117 | int attack; |
ryood | 22:a3bb7594f9bb | 118 | int release; |
ryood | 22:a3bb7594f9bb | 119 | float v0; |
ryood | 22:a3bb7594f9bb | 120 | float v1; |
ryood | 22:a3bb7594f9bb | 121 | float v2; |
ryood | 22:a3bb7594f9bb | 122 | float attackTauRatio; |
ryood | 22:a3bb7594f9bb | 123 | float releaseTauRatio; |
ryood | 22:a3bb7594f9bb | 124 | }; |
ryood | 22:a3bb7594f9bb | 125 | |
ryood | 22:a3bb7594f9bb | 126 | #endif //_ENVELOPE_AR_H_ |