41 lines
1.4 KiB
Markdown
41 lines
1.4 KiB
Markdown
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# `FeatureExtractors`的工具
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此页面列出了音频 [`FeatureExtractor`] 可以使用的所有实用函数，以便使用常见的算法（如 *Short Time Fourier Transform* 或 *log mel spectrogram*）从原始音频中计算特殊特征。
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其中大多数仅在您研究库中音频processors的代码时有用。
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## 音频转换
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[[autodoc]] audio_utils.hertz_to_mel
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[[autodoc]] audio_utils.mel_to_hertz
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[[autodoc]] audio_utils.mel_filter_bank
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[[autodoc]] audio_utils.optimal_fft_length
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[[autodoc]] audio_utils.window_function
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[[autodoc]] audio_utils.spectrogram
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[[autodoc]] audio_utils.power_to_db
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[[autodoc]] audio_utils.amplitude_to_db
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