1 /* 2 * Copyright 2019 Google LLC 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * https://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 #ifndef ANDROID_FXLAB_FLANGEREFFECT_H 17 #define ANDROID_FXLAB_FLANGEREFFECT_H 18 19 #include "DelayLineEffect.h" 20 21 template<class iter_type> 22 class FlangerEffect : public DelayLineEffect<iter_type> { 23 public: 24 // feedback should be 0.7071 FlangerEffect(float depth_ms,float frequency,float feedback)25 FlangerEffect(float depth_ms, float frequency, float feedback): 26 DelayLineEffect<iter_type>(feedback, feedback, feedback, 0, depth_ms * SAMPLE_RATE / 1000, 27 SineWave {frequency, 1, SAMPLE_RATE}) { } 28 }; 29 #endif //ANDROID_FXLAB_FLANGEREFFECT_H 30