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38 lines
1.3 KiB
C++
38 lines
1.3 KiB
C++
#pragma once
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#ifdef USE_ESP_IDF
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#include <cstdint>
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namespace esphome {
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namespace micro_wake_word {
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// Settings for controlling the spectrogram feature generation by the preprocessor.
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// These must match the settings used when training a particular model.
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// All microWakeWord models have been trained with these specific paramters.
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// The number of features the audio preprocessor generates per slice
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static const uint8_t PREPROCESSOR_FEATURE_SIZE = 40;
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// Duration of each slice used as input into the preprocessor
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static const uint8_t FEATURE_DURATION_MS = 30;
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static const float FILTERBANK_LOWER_BAND_LIMIT = 125.0;
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static const float FILTERBANK_UPPER_BAND_LIMIT = 7500.0;
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static const uint8_t NOISE_REDUCTION_SMOOTHING_BITS = 10;
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static const float NOISE_REDUCTION_EVEN_SMOOTHING = 0.025;
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static const float NOISE_REDUCTION_ODD_SMOOTHING = 0.06;
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static const float NOISE_REDUCTION_MIN_SIGNAL_REMAINING = 0.05;
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static const bool PCAN_GAIN_CONTROL_ENABLE_PCAN = true;
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static const float PCAN_GAIN_CONTROL_STRENGTH = 0.95;
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static const float PCAN_GAIN_CONTROL_OFFSET = 80.0;
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static const uint8_t PCAN_GAIN_CONTROL_GAIN_BITS = 21;
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static const bool LOG_SCALE_ENABLE_LOG = true;
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static const uint8_t LOG_SCALE_SCALE_SHIFT = 6;
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} // namespace micro_wake_word
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} // namespace esphome
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#endif
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