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1. 发明申请

US20080126084A1 METHOD, APPARATUS AND SYSTEM FOR ENCODING AND DECODING BROADBAND VOICE SIGNAL 有权
标题翻译：用于编码和解码宽带语音信号的方法，装置和系统
公开(公告)号：US20080126084A1
公开(公告)日：2008-05-29
申请号：US11838268
申请日：2007-08-14
申请人： In-sung LEE , Jong-hark Kim , Gyu-hyeok Jeong , Sang-won Seo
发明人： In-sung LEE , Jong-hark Kim , Gyu-hyeok Jeong , Sang-won Seo
IPC分类号： G10L19/00 , G10L21/00
CPC分类号： G10L19/09
摘要： A method, apparatus, and system for encoding or decoding a broadband voice signal are provided. The method includes extracting a linear prediction coefficient (LPC) from the broadband voice signal; outputting a linear prediction (LP) residual signal; pitch-searching a spectrum of the LP residual signal; extracting spectral magnitudes and phases of the LP residual signal, which correspond to a damping factor; obtaining, from among the extracted spectral magnitudes and phases, a first spectral magnitude and a first phase at which a power value of the LP residual signal is minimized; quantizing the first spectral magnitude and the first phase; and decoding the broadband voice signal. The apparatus includes a linear prediction coefficient (LPC) analyzer; an LPC inverse filter; a pitch searching unit; a sinusoidal analyzer; and a phase and spectral magnitude quantizer. The system includes a broadband voice encoding apparatus and a broadband voice decoding apparatus.
摘要翻译：提供了一种用于对宽带语音信号进行编码或解码的方法，装置和系统。该方法包括从宽带语音信号提取线性预测系数（LPC）; 输出线性预测（LP）残差信号; 对LP残差信号进行频谱搜索; 提取对应于阻尼因子的LP残差信号的频谱幅度和相位; 从提取的频谱幅度和相位中获取第一频谱幅度和LP残差信号的功率值被最小化的第一相位; 量化第一光谱幅度和第一相位; 并解码宽带语音信号。该装置包括线性预测系数（LPC）分析器; 一个LPC逆滤波器; 音调搜索单元; 正弦分析仪; 以及相位和频谱幅度量化器。该系统包括宽带语音编码装置和宽带语音解码装置。

2. 发明授权

US08271270B2 Method, apparatus and system for encoding and decoding broadband voice signal 有权
标题翻译：宽带语音信号编解码方法，装置及系统
公开(公告)号：US08271270B2
公开(公告)日：2012-09-18
申请号：US11838268
申请日：2007-08-14
申请人： In-sung Lee , Jong-hark Kim , Gyu-hyeok Jeong , Sang-won Seo
发明人： In-sung Lee , Jong-hark Kim , Gyu-hyeok Jeong , Sang-won Seo
IPC分类号： G10L19/02 , G10L19/00
CPC分类号： G10L19/09
摘要： A method, apparatus, and system for encoding or decoding a broadband voice signal are provided. The method includes extracting a linear prediction coefficient (LPC) from the broadband voice signal; outputting a linear prediction (LP) residual signal; pitch-searching a spectrum of the LP residual signal; extracting spectral magnitudes and phases of the LP residual signal, which correspond to a damping factor; obtaining, from among the extracted spectral magnitudes and phases, a first spectral magnitude and a first phase at which a power value of the LP residual signal is minimized; quantizing the first spectral magnitude and the first phase; and decoding the broadband voice signal. The apparatus includes a linear prediction coefficient (LPC) analyzer; an LPC inverse filter; a pitch searching unit; a sinusoidal analyzer; and a phase and spectral magnitude quantizer. The system includes a broadband voice encoding apparatus and a broadband voice decoding apparatus.
摘要翻译：提供了一种用于对宽带语音信号进行编码或解码的方法，装置和系统。该方法包括从宽带语音信号提取线性预测系数（LPC）; 输出线性预测（LP）残差信号; 对LP残差信号进行频谱搜索; 提取对应于阻尼因子的LP残差信号的频谱幅度和相位; 从提取的频谱幅度和相位中获取第一频谱幅度和LP残差信号的功率值被最小化的第一相位; 量化第一光谱幅度和第一相位; 并解码宽带语音信号。该装置包括线性预测系数（LPC）分析器; 一个LPC逆滤波器; 音调搜索单元; 正弦分析仪; 以及相位和频谱幅度量化器。该系统包括宽带语音编码装置和宽带语音解码装置。

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