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Noise detection and separation arrangement, having neural network which forms classification signal giving indication of type of acoustic signal
Noise detection and separation arrangement, having neural network which forms classification signal giving indication of type of acoustic signal
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机译:噪声检测和分离装置,具有形成分类信号的神经网络,可指示声音信号的类型
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摘要
The arrangement includes at least one normalization unit (13) which normalizes respectively an amplitude (12) of a certain frequency range from the spectrum of the acoustic signal (1). A differentiation arrangement (15) differentiates the normalized amplitude (14) to time, and forms an absolute value of the differentiated amplitude. A neural network (18) includes input neurones which receive the differentiated amplitude or its absolute value of the certain frequency range, and output neurones which form a classification signal (22) classifying the acoustic signal according to its frequency spectrum, giving an indication of the type of acoustic signal.
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