40 lines
1.4 KiB
Markdown
40 lines
1.4 KiB
Markdown
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# Utilities for `FeatureExtractors`
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This page lists all the utility functions that can be used by the audio [`FeatureExtractor`] in order to compute special features from a raw audio using common algorithms such as *Short Time Fourier Transform* or *log mel spectrogram*.
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Most of those are only useful if you are studying the code of the audio processors in the library.
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## Audio Transformations
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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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