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1. 发明申请

US20080159559A1 Post-filter for microphone array 审中-公开
标题翻译：麦克风阵列的后置滤波器
公开(公告)号：US20080159559A1
公开(公告)日：2008-07-03
申请号：US12074085
申请日：2008-02-29
申请人： Masato Akagi , Junfeng Li , Masaaki Uechi , Kazuya Sasaki
发明人： Masato Akagi , Junfeng Li , Masaaki Uechi , Kazuya Sasaki
IPC分类号： H04R3/00
CPC分类号： G10L21/0208 , G10L2021/02166 , H04R3/005
摘要： A post-filter includes a microphone array including at least two microphones to which a voice signal are input, a beam former which forms the voice signal input from the microphone array, a divider which divides a target sound containing noise input from the microphone array into at least two frequency bands at a predetermined frequency, a first filter which estimates the filter gain with the noise non-correlated between the microphones, a second filter which estimates a filter gain of one microphone of the microphone array or an average signal of the microphone array, an adder which adds the outputs from the first and second filters to each other, and a filter for reducing the noise based on the outputs from the adder and the beam former.
摘要翻译：后置滤波器包括麦克风阵列，其包括输入语音信号的至少两个麦克风，形成从麦克风阵列输入的语音信号的波束形成器，将包含来自麦克风阵列的噪声输入的目标声音分成以预定频率的至少两个频带，第一滤波器，其利用麦克风之间不相关的噪声来估计滤波器增益;估计麦克风阵列的一个麦克风的滤波器增益的第二滤波器或麦克风的平均信号阵列，将来自第一和第二滤波器的输出彼此相加的加法器，以及用于基于来自加法器和波束形成器的输出来降低噪声的滤波器。

2. 发明授权

US08065138B2 Speech processing method and apparatus, storage medium, and speech system 有权
标题翻译：语音处理方法和装置，存储介质和语音系统
公开(公告)号：US08065138B2
公开(公告)日：2011-11-22
申请号：US11849106
申请日：2007-08-31
申请人： Masato Akagi , Rieko Futonagane , Yoshihiro Irie , Hisakazu Yanagiuchi , Yoshitane Tanaka
发明人： Masato Akagi , Rieko Futonagane , Yoshihiro Irie , Hisakazu Yanagiuchi , Yoshitane Tanaka
IPC分类号： G10L19/04
CPC分类号： G10L21/00 , G10K11/178 , G10L21/0232 , G10L21/0364
摘要： A speech processing apparatus includes a spectrum envelope extracting unit which extracts the spectrum envelope of an input speech signal, a spectrum envelope deforming unit which applies deformation to the spectrum envelope to generate a deformed spectrum envelope, a spectrum fine structure extracting unit which extracts the spectrum fine structure of the input speech signal, a deformed spectrum generating unit which generates a deformed spectrum by combining the deformed spectrum envelope with the spectrum fine structure, and a speech generating unit which generates an output speech signal on the basis of the deformed spectrum. This apparatus emits a disrupting sound based on the output speech signal to prevent a third party from eavesdropping on a conversation.
摘要翻译：一种语音处理装置，包括：频谱包络提取单元，其提取输入语音信号的频谱包络;频谱包络变形单元，对所述频谱包络进行变形，生成变形频谱包络;频谱精细结构提取单元，输入语音信号的精细结构，通过将变形频谱包络与频谱精细结构组合而产生变形频谱的变形频谱生成单元，以及基于变形频谱生成输出语音信号的语音生成单元。该装置基于输出语音信号发出中断声音，以防止第三方窃听对话。

3. 发明申请

US20080281588A1 SPEECH PROCESSING METHOD AND APPARATUS, STORAGE MEDIUM, AND SPEECH SYSTEM 有权
标题翻译：语音处理方法和设备，存储媒体和语音系统
公开(公告)号：US20080281588A1
公开(公告)日：2008-11-13
申请号：US11849106
申请日：2007-08-31
申请人： Masato Akagi , Rieko Futonagane , Yoshihiro Irie , Hisakazu Yanagiuchi , Yoshitane Tanaka
发明人： Masato Akagi , Rieko Futonagane , Yoshihiro Irie , Hisakazu Yanagiuchi , Yoshitane Tanaka
IPC分类号： G10L21/00
CPC分类号： G10L21/00 , G10K11/178 , G10L21/0232 , G10L21/0364
摘要： A speech processing apparatus includes a spectrum envelope extracting unit which extracts the spectrum envelope of an input speech signal, a spectrum envelope deforming unit which applies deformation to the spectrum envelope to generate a deformed spectrum envelope, a spectrum fine structure extracting unit which extracts the spectrum fine structure of the input speech signal, a deformed spectrum generating unit which generates a deformed spectrum by combining the deformed spectrum envelope with the spectrum fine structure, and a speech generating unit which generates an output speech signal on the basis of the deformed spectrum. This apparatus emits a disrupting sound based on the output speech signal to prevent a third party from eavesdropping on a conversation.
摘要翻译：一种语音处理装置，包括：频谱包络提取单元，其提取输入语音信号的频谱包络;频谱包络变形单元，对所述频谱包络进行变形，生成变形频谱包络;频谱精细结构提取单元，输入语音信号的精细结构，通过将变形频谱包络与频谱精细结构组合而产生变形频谱的变形频谱生成单元，以及基于变形频谱生成输出语音信号的语音生成单元。该装置基于输出语音信号发出中断声音，以防止第三方窃听对话。

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