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Merge pull request #36 from sp-nitech/harvest
Support harvest
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| Original file line number | Diff line number | Diff line change |
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| // ------------------------------------------------------------------------ // | ||
| // Copyright 2021 SPTK Working Group // | ||
| // // | ||
| // Licensed under the Apache License, Version 2.0 (the "License"); // | ||
| // you may not use this file except in compliance with the License. // | ||
| // You may obtain a copy of the License at // | ||
| // // | ||
| // http://www.apache.org/licenses/LICENSE-2.0 // | ||
| // // | ||
| // Unless required by applicable law or agreed to in writing, software // | ||
| // distributed under the License is distributed on an "AS IS" BASIS, // | ||
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. // | ||
| // See the License for the specific language governing permissions and // | ||
| // limitations under the License. // | ||
| // ------------------------------------------------------------------------ // | ||
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| #ifndef SPTK_ANALYSIS_PITCH_EXTRACTION_BY_HARVEST_H_ | ||
| #define SPTK_ANALYSIS_PITCH_EXTRACTION_BY_HARVEST_H_ | ||
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| #include <vector> // std::vector | ||
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| #include "SPTK/analysis/pitch_extraction_interface.h" | ||
| #include "SPTK/utils/sptk_utils.h" | ||
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| namespace sptk { | ||
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| /** | ||
| * Extract pitch based on WORLD (Harvest). | ||
| */ | ||
| class PitchExtractionByHarvest : public PitchExtractionInterface { | ||
| public: | ||
| /** | ||
| * @param[in] frame_shift Frame shift in point. | ||
| * @param[in] sampling_rate Sampling rate in Hz. | ||
| * @param[in] lower_f0 Lower bound of F0 in Hz. | ||
| * @param[in] upper_f0 Upper bound of F0 in Hz. | ||
| * @param[in] voicing_threshold Threshold for determining voiced/unvoiced. | ||
| */ | ||
| PitchExtractionByHarvest(int frame_shift, double sampling_rate, | ||
| double lower_f0, double upper_f0, | ||
| double voicing_threshold); | ||
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| virtual ~PitchExtractionByHarvest() { | ||
| } | ||
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| /** | ||
| * @return Frame shift. | ||
| */ | ||
| int GetFrameShift() const { | ||
| return frame_shift_; | ||
| } | ||
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| /** | ||
| * @return Sampling rate. | ||
| */ | ||
| double GetSamplingRate() const { | ||
| return sampling_rate_; | ||
| } | ||
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| /** | ||
| * @return Minimum fundamental frequency to search for. | ||
| */ | ||
| double GetLowerF0() const { | ||
| return lower_f0_; | ||
| } | ||
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| /** | ||
| * @return Maximum fundamental frequency to search for. | ||
| */ | ||
| double GetUpperF0() const { | ||
| return upper_f0_; | ||
| } | ||
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| /** | ||
| * @return Voicing threshold. | ||
| */ | ||
| double GetVoicingThreshold() const { | ||
| return voicing_threshold_; | ||
| } | ||
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| /** | ||
| * @return True if this object is valid. | ||
| */ | ||
| virtual bool IsValid() const { | ||
| return is_valid_; | ||
| } | ||
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| /** | ||
| * @param[in] waveform Waveform. | ||
| * @param[out] f0 Extracted pitch in Hz. | ||
| * @param[out] epochs Pitchmark (not used). | ||
| * @param[out] polarity Polarity (not used). | ||
| * @return True on success, false on failure. | ||
| */ | ||
| virtual bool Get(const std::vector<double>& waveform, std::vector<double>* f0, | ||
| std::vector<double>* epochs, | ||
| PitchExtractionInterface::Polarity* polarity) const; | ||
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| private: | ||
| const int frame_shift_; | ||
| const double sampling_rate_; | ||
| const double lower_f0_; | ||
| const double upper_f0_; | ||
| const double voicing_threshold_; | ||
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| bool is_valid_; | ||
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| DISALLOW_COPY_AND_ASSIGN(PitchExtractionByHarvest); | ||
| }; | ||
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| } // namespace sptk | ||
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| #endif // SPTK_ANALYSIS_PITCH_EXTRACTION_BY_HARVEST_H_ |
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