70 lines
1.7 KiB
C++
70 lines
1.7 KiB
C++
// sherpa-onnx/csrc/silero-vad-model.h
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//
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// Copyright (c) 2023 Xiaomi Corporation
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#ifndef SHERPA_ONNX_CSRC_SILERO_VAD_MODEL_H_
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#define SHERPA_ONNX_CSRC_SILERO_VAD_MODEL_H_
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#include <memory>
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#if __ANDROID_API__ >= 9
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#include "android/asset_manager.h"
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#include "android/asset_manager_jni.h"
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#endif
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#if __OHOS__
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#include "rawfile/raw_file_manager.h"
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#endif
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#include "sherpa-onnx/csrc/vad-model.h"
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namespace sherpa_onnx {
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class SileroVadModel : public VadModel {
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public:
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explicit SileroVadModel(const VadModelConfig &config);
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#if __ANDROID_API__ >= 9
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SileroVadModel(AAssetManager *mgr, const VadModelConfig &config);
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#endif
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#if __OHOS__
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SileroVadModel(NativeResourceManager *mgr, const VadModelConfig &config);
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#endif
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~SileroVadModel() override;
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// reset the internal model states
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void Reset() override;
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/**
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* @param samples Pointer to a 1-d array containing audio samples.
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* Each sample should be normalized to the range [-1, 1].
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* @param n Number of samples.
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*
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* @return Return true if speech is detected. Return false otherwise.
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*/
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bool IsSpeech(const float *samples, int32_t n) override;
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// For silero vad V4, it is WindowShift().
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// For silero vad V5, it is WindowShift()+64 for 16kHz and
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// WindowShift()+32 for 8kHz
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int32_t WindowSize() const override;
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// 512
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int32_t WindowShift() const override;
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int32_t MinSilenceDurationSamples() const override;
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int32_t MinSpeechDurationSamples() const override;
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void SetMinSilenceDuration(float s) override;
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void SetThreshold(float threshold) override;
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private:
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class Impl;
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std::unique_ptr<Impl> impl_;
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};
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} // namespace sherpa_onnx
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#endif // SHERPA_ONNX_CSRC_SILERO_VAD_MODEL_H_
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