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Apparatus and method for processing and audio signal for speech enhancement using a feature extraction
Apparatus and method for processing and audio signal for speech enhancement using a feature extraction
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机译:使用特征提取来处理和增强语音信号的音频信号的装置和方法
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摘要
An apparatus for processing an audio signal to obtain control information for a speech enhancement filter comprises a feature extractor for extracting at least one feature per frequency band of a plurality of frequency bands of a short-time spectral representation of a plurality of short-time spectral representations, where the at least one feature represents a spectral shape of the short-time spectral representation in the frequency band. The apparatus additionally comprises a feature combiner for combining the at least one feature for each frequency band using combination parameters to obtain the control information for the speech enhancement filter for a time portion of the audio signal. The feature combiner can use a neural network regression method, which is based on combination parameters determined in a training phase for the neural network.
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