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1. 发明公开

EP2096629A1 A CLASSING METHOD AND DEVICE FOR SOUND SIGNAL 有权
标题翻译： VERFAHREN UNDGERÄTZUR KLASSIFIZIERUNG VON TONSIGNALEN
公开(公告)号：EP2096629A1
公开(公告)日：2009-09-02
申请号：EP07855800.4
申请日：2007-12-26
申请人： Huawei Technologies Co., Ltd.
发明人： LI, Wei , XU, Lijing , ZHANG, Qing , XU, Jianfeng , SANG, Shenghu , DU, Zhengzhong , YAN, Qin , DENG, Haojiang , WANG,Jun
IPC分类号： G10L11/02 , G10L11/06 , G10L15/08 , G10L21/02
CPC分类号： G10L25/78 , G10L19/20
摘要： A method for classifying sound signals includes: receiving sound signals, and determining the update rate of background noise according to spectral distribution parameters of the background noise and the sound signals; and updating the noise parameters according to the update rate, and classifying the sound signals according to sub-band energy parameters and updated noise parameters. An apparatus for classifying sound signals includes: a background noise parameter updating module, configured to: determine the update rate of background noise according to spectral distribution parameters of the background noise and the current sound signals; and send the determined update rate; and a PSC module, configured to: receive the update rate from the background noise parameter updating module, update the noise parameters, classify the current sound signals according to the sub-band energy parameters and updated noise parameters, and send the sound signal type determined through classification.
摘要翻译：用于分类声音信号的方法包括：接收声音信号，并根据背景噪声和声音信号的频谱分布参数确定背景噪声的更新速率; 并根据更新速率更新噪声参数，并根据子带能量参数和更新的噪声参数对声音信号进行分类。用于分类声音信号的装置包括：背景噪声参数更新模块，用于根据背景噪声和当前声音信号的频谱分布参数确定背景噪声的更新速率; 并发送确定的更新率; 以及PSC模块，被配置为：从所述背景噪声参数更新模块接收更新速率，更新噪声参数，根据子带能量参数和更新的噪声参数对当前声音信号进行分类，并且发送确定的声音信号类型通过分类。

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