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1 /* | 1 /* |
2 * Copyright (c) 2014 The WebRTC project authors. All Rights Reserved. | 2 * Copyright (c) 2014 The WebRTC project authors. All Rights Reserved. |
3 * | 3 * |
4 * Use of this source code is governed by a BSD-style license | 4 * Use of this source code is governed by a BSD-style license |
5 * that can be found in the LICENSE file in the root of the source | 5 * that can be found in the LICENSE file in the root of the source |
6 * tree. An additional intellectual property rights grant can be found | 6 * tree. An additional intellectual property rights grant can be found |
7 * in the file PATENTS. All contributing project authors may | 7 * in the file PATENTS. All contributing project authors may |
8 * be found in the AUTHORS file in the root of the source tree. | 8 * be found in the AUTHORS file in the root of the source tree. |
9 */ | 9 */ |
10 | 10 |
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109 size_t chunk_length_; | 109 size_t chunk_length_; |
110 rtc::scoped_ptr<LappedTransform> lapped_transform_; | 110 rtc::scoped_ptr<LappedTransform> lapped_transform_; |
111 float window_[kFftSize]; | 111 float window_[kFftSize]; |
112 | 112 |
113 // Parameters exposed to the user. | 113 // Parameters exposed to the user. |
114 const int num_input_channels_; | 114 const int num_input_channels_; |
115 int sample_rate_hz_; | 115 int sample_rate_hz_; |
116 | 116 |
117 const std::vector<Point> array_geometry_; | 117 const std::vector<Point> array_geometry_; |
118 | 118 |
| 119 // Minimum spacing between microphone pairs. |
| 120 const float min_mic_spacing_; |
| 121 |
119 // Calculated based on user-input and constants in the .cc file. | 122 // Calculated based on user-input and constants in the .cc file. |
120 size_t low_mean_start_bin_; | 123 size_t low_mean_start_bin_; |
121 size_t low_mean_end_bin_; | 124 size_t low_mean_end_bin_; |
122 size_t high_mean_start_bin_; | 125 size_t high_mean_start_bin_; |
123 size_t high_mean_end_bin_; | 126 size_t high_mean_end_bin_; |
124 | 127 |
125 // Quickly varying mask updated every block. | 128 // Quickly varying mask updated every block. |
126 float new_mask_[kNumFreqBins]; | 129 float new_mask_[kNumFreqBins]; |
127 // Time smoothed mask. | 130 // Time smoothed mask. |
128 float time_smooth_mask_[kNumFreqBins]; | 131 float time_smooth_mask_[kNumFreqBins]; |
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165 // Number of blocks after which the data is considered interference if the | 168 // Number of blocks after which the data is considered interference if the |
166 // mask does not pass |kMaskSignalThreshold|. | 169 // mask does not pass |kMaskSignalThreshold|. |
167 size_t hold_target_blocks_; | 170 size_t hold_target_blocks_; |
168 // Number of blocks since the last mask that passed |kMaskSignalThreshold|. | 171 // Number of blocks since the last mask that passed |kMaskSignalThreshold|. |
169 size_t interference_blocks_count_; | 172 size_t interference_blocks_count_; |
170 }; | 173 }; |
171 | 174 |
172 } // namespace webrtc | 175 } // namespace webrtc |
173 | 176 |
174 #endif // WEBRTC_MODULES_AUDIO_PROCESSING_BEAMFORMER_NONLINEAR_BEAMFORMER_H_ | 177 #endif // WEBRTC_MODULES_AUDIO_PROCESSING_BEAMFORMER_NONLINEAR_BEAMFORMER_H_ |
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