Fabio
c36510c21e
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28 lines
757 B
C++
28 lines
757 B
C++
#pragma once
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#include "engine/framework/audio/nemo_mel_frontend.h"
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#include <cstddef>
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#include <vector>
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namespace engine::community_models::whistle_asr {
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struct MelFeatures {
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std::vector<float> values;
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size_t frames = 0;
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};
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// Whistle log-mel features: the shared NemoMelFrontend STFT/mel/normalization
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// path with Whistle's percentile gain normalization applied locally first.
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class WhistleFrontend {
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public:
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explicit WhistleFrontend(std::vector<float> filterbank);
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// The caller supplies mono 16 kHz float PCM, with at most 30 seconds per pass.
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[[nodiscard]] MelFeatures extract(const std::vector<float> & samples) const;
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private:
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audio::NemoMelFrontend frontend_;
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};
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} // namespace engine::community_models::whistle_asr
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