/* * Copyright (c) 2018 The WebRTC project authors. All Rights Reserved. * * Use of this source code is governed by a BSD-style license * that can be found in the LICENSE file in the root of the source * tree. An additional intellectual property rights grant can be found * in the file PATENTS. All contributing project authors may * be found in the AUTHORS file in the root of the source tree. */ #ifndef MODULES_AUDIO_PROCESSING_AEC3_REVERB_FREQUENCY_RESPONSE_H_ #define MODULES_AUDIO_PROCESSING_AEC3_REVERB_FREQUENCY_RESPONSE_H_ #include #include #include "absl/types/optional.h" #include "api/array_view.h" #include "modules/audio_processing/aec3/aec3_common.h" namespace webrtc { // Class for updating the frequency response for the reverb. class ReverbFrequencyResponse { public: ReverbFrequencyResponse(); ~ReverbFrequencyResponse(); // Updates the frequency response estimate of the reverb. void Update(const std::vector>& frequency_response, int filter_delay_blocks, const absl::optional& linear_filter_quality, bool stationary_block); // Returns the estimated frequency response for the reverb. rtc::ArrayView FrequencyResponse() const { return tail_response_; } private: void Update(const std::vector>& frequency_response, int filter_delay_blocks, float linear_filter_quality); const bool enable_smooth_tail_response_updates_; float average_decay_ = 0.f; std::array tail_response_; }; } // namespace webrtc #endif // MODULES_AUDIO_PROCESSING_AEC3_REVERB_FREQUENCY_RESPONSE_H_