LSP VECTOR QUANTIZATION APPARATUS, LSP VECTOR INVERSE-QUANTIZATION APPARATUS, AND THEIR METHODS
    1.
    发明申请
    LSP VECTOR QUANTIZATION APPARATUS, LSP VECTOR INVERSE-QUANTIZATION APPARATUS, AND THEIR METHODS 审中-公开
    LSP矢量量化装置,LSP矢量反相量化装置及其方法

    公开(公告)号:US20090198491A1

    公开(公告)日:2009-08-06

    申请号:US12300225

    申请日:2007-05-11

    IPC分类号: G10L19/06

    CPC分类号: H03M7/3082 G10L19/07

    摘要: Disclosed is an LPC vector quantization device capable of quantizing an LSP vector by using correlation between divided vectors. The device includes: a vector dividing unit (101) for dividing an inputted LSP vector into a first divided vector and a second divided vector; a first quantization unit (102) for quantizing the first divided vector by using a first codebook formed by a plurality of first code vectors to generate a first code; a prediction vector selection unit (103) for predicting a second divided vector from the first code by using a prediction codebook formed by a plurality of prediction code vectors to create a prediction vector; a prediction residual generation unit (104) for obtaining a residual between the prediction vector and the second divided vector to create a prediction residual vector; a second quantization unit (105) for quantizing the prediction residual vector by using a second codebook formed by a plurality of second code vectors to create a second code; and a multiplexing unit (106) for generating a quantization vector code by multiplexing the first code and the second code.

    摘要翻译: 公开了一种LPC矢量量化装置,其能够通过使用分割矢量之间的相关来量化LSP矢量。 该装置包括:矢量分割单元,用于将输入的LSP矢量划分为第一分割矢量和第二分割矢量; 第一量化单元(102),用于通过使用由多个第一码矢量形成的第一码本来量化第一划分矢量以产生第一码; 预测矢量选择单元,用于通过使用由多个预测码矢量形成的预测码本来从第一码预测第二划分矢量以产生预测矢量; 预测残差生成单元,用于获得所述预测矢量和所述第二分割矢量之间的残差,以产生预测残差矢量; 第二量化单元(105),用于通过使用由多个第二代码矢量形成的第二代码簿来量化所述预测残差矢量以产生第二代码; 以及用于通过多路复用第一代码和第二代码来生成量化矢量代码的复用单元(106)。

    Audio/Music Decoding Device and Audiomusic Decoding Method
    2.
    发明申请
    Audio/Music Decoding Device and Audiomusic Decoding Method 有权
    音频/音乐解码设备和Audiomusic解码方法

    公开(公告)号:US20070271101A1

    公开(公告)日:2007-11-22

    申请号:US11569377

    申请日:2005-05-13

    IPC分类号: G10L13/06

    CPC分类号: G10L19/005 G10L19/24

    摘要: An audio/music decoding device capable of improving quality of a decoded signal generated by conceal processing of a frame erase using a scalable encoding method. The audio/music decoding device includes a frame loss detector that determines whether encoded information is normally received and generates frame loss information indicating the result of the determination. According to the frame loss information, a first decoder performs decoding by using at least one of the following encoded information: the first encoded information on the frame immediately before, the first encoded information on the current frame, and the second encoded information on the current frame. According to the frame loss information, a second decoder performs decoding by using at least one of the following encoded information: the first encoded information on the frame immediately before, the first encoded information on the current frame, the second encoded information on the frame immediately before, and the second encoded information on the current frame. An adder adds the decoded signal outputted from the first decoder and the decoded signal outputted from the second decoder.

    摘要翻译: 一种音频/音乐解码装置,其能够使用可伸缩编码方法来提高通过隐藏处理帧擦除而产生的解码信号的质量。 音频/音乐解码装置包括帧丢失检测器,其确定编码信息是否被正常接收,并产生指示确定结果的帧丢失信息。 根据帧丢失信息,第一解码器通过使用以下编码信息中的至少一个来执行解码:紧接着的帧上的第一编码信息,当前帧上的第一编码信息和关于当前帧的第二编码信息 帧。 根据帧丢失信息,第二解码器通过使用以下编码信息中的至少一个来执行解码:紧接着的帧上的第一编码信息,当前帧上的第一编码信息,帧上的第二编码信息 之前,以及当前帧上的第二编码信息。 加法器将从第一解码器输出的解码信号和从第二解码器输出的解码信号相加。

    Relay device and signal decoding device
    3.
    发明授权
    Relay device and signal decoding device 有权
    中继装置和信号解码装置

    公开(公告)号:US08018993B2

    公开(公告)日:2011-09-13

    申请号:US11658494

    申请日:2005-07-25

    IPC分类号: H04B1/66

    CPC分类号: G10L19/24 G10L19/005

    摘要: There is provided a relay device capable of simultaneously transmitting various additional information such as audio information, character information, and image information while suppressing the communication cost and the line use ratio without increasing the calculation cost in the decoding process. The relay device includes an encoded information analysis unit (602) which outputs transmission mode information and an additional information flag to an additional processing unit (603) and outputs an information source code of each layer to the additional processing unit (603) according to the transmission mode information. According to the combination of the transmission mode information and the additional mode information, the additional processing unit (603) performs additional processing of the additional information for the information source code of each layer. An encoded information integration unit (604) integrates the transmission mode information, the additional mode information, the additional information flag, and various information source codes inputted from the additional processing unit (603).

    摘要翻译: 提供一种能够在不增加解码处理中的计算成本的同时抑制通信成本和线路利用率的同时发送音频信息,字符信息和图像信息等各种附加信息的中继装置。 中继装置包括编码信息分析单元(602),其将传输模式信息和附加信息标志输出到附加处理单元(603),并根据所述附加处理单元(603)将各层的信息源代码输出到附加处理单元(603) 传输模式信息。 根据传输模式信息和附加模式信息的组合,附加处理单元(603)对每一层的信息源代码执行附加信息的附加处理。 编码信息积分单元(604)对发送模式信息,附加模式信息,附加信息标志以及从附加处理单元(603)输入的各种信息源代码进行积分。

    Voice/musical sound encoding device and voice/musical sound encoding method
    4.
    发明授权
    Voice/musical sound encoding device and voice/musical sound encoding method 有权
    语音/音乐声音编码装置和语音/音乐声音编码方法

    公开(公告)号:US07693707B2

    公开(公告)日:2010-04-06

    申请号:US10596773

    申请日:2004-12-20

    IPC分类号: G10L19/00

    CPC分类号: G10L19/032

    摘要: A voice and musical tone coding apparatus is provided that can perform high-quality coding by executing vector quantization taking the characteristics of human hearing into consideration. In this voice and musical tone coding apparatus, a quadrature transformation processing section (201) converts a voice and musical tone signal from time components to frequency components. An auditory masking characteristic value calculation section (203) finds an auditory masking characteristic value from a voice and musical tone signal. A vector quantization section (202) performs vector quantization changing a calculation method of a distance between a code vector found from a preset codebook and a frequency component based on an auditory masking characteristic value.

    摘要翻译: 提供一种语音和乐音编码装置,其可以考虑到人类听觉的特征,执行矢量量化,从而进行高质量的编码。 在这种语音和乐音编码装置中,正交变换处理部(201)将语音和乐音信号从时间分量转换为频率分量。 听觉掩蔽特性值计算部(203)从语音和乐音信号中求出听觉掩蔽特性值。 矢量量化部(202)进行矢量量化,根据听觉掩蔽特性值,改变从预设码本找到的码矢量与频率分量之间的距离的计算方法。

    Coding device and coding method with high layer coding based on lower layer coding results
    5.
    发明授权
    Coding device and coding method with high layer coding based on lower layer coding results 有权
    基于较低层编码结果的编码设备和具有高层编码的编码方法

    公开(公告)号:US08306827B2

    公开(公告)日:2012-11-06

    申请号:US12282287

    申请日:2007-03-08

    IPC分类号: G10L19/12

    CPC分类号: G10L19/24

    摘要: A coding device is provided with features in which optimum coding in a higher layer is flexibly carried out based on a coding result of a lower layer and a quality audio signal in limited circumstances is served to users. In this coding device, a basic layer coding unit codes an input signal to generate a basic layer information source code and outputs a linear prediction coefficient (LPC) and a quantum LPC, which are parameters calculated at coding, to an expanded layer control unit. A basic layer decoding unit decodes the basic layer information source code. An adding unit reverses a polarity of a basic layer decoded signal, adds the same to the input signal, and calculates a difference signal. The expanded layer control unit generates expanded layer mode information indicative of a coding mode in an expanded layer based on the LPC and the quantum LPC. An expanded layer coding unit codes the difference signal obtained from the adding unit under control of the expanded layer control unit.

    摘要翻译: 编码装置具有这样的特征,其中基于较低层的编码结果灵活地执行较高层中的最佳编码,并且在有限的情况下向用户提供质量音频信号。 在该编码装置中,基本层编码单元对输入信号进行编码以生成基本层信息源代码,并将作为编码计算出的参数的线性预测系数(LPC)和量子LPC输出到扩展层控制单元。 基本层解码单元解码基本层信息源代码。 加法单元反转基本层解码信号的极性,将其相加于输入信号,并计算差分信号。 扩展层控制单元基于LPC和量子LPC生成表示扩展层中的编码模式的扩展层模式信息。 扩展层编码单元在扩展层控制单元的控制下对从加法单元获得的差分信号进行编码。

    Audio encoding device, audio decoding device, and method thereof
    6.
    发明授权
    Audio encoding device, audio decoding device, and method thereof 有权
    音频编码装置,音频解码装置及其方法

    公开(公告)号:US07840402B2

    公开(公告)日:2010-11-23

    申请号:US11630380

    申请日:2005-06-16

    IPC分类号: G10L19/00

    CPC分类号: G10L19/24 G10L19/12

    摘要: There is disclosed an audio encoding device capable of realizing effective encoding while using audio encoding of the CELP method in an extended layer when hierarchically encoding an audio signal. In this device, a first encoding section (115) subjects an input signal (S11) to audio encoding processing of the CELP method and outputs the obtained first encoded information (S12) to a parameter decoding section (120). The parameter decoding section (120) acquires a first quantization LSP code (L1), a first adaptive excitation lag code (A1), and the like from the first encoded information (S12), obtains a first parameter group (S13) from these codes, and outputs it to a second encoding section (130). The second encoding section (130) subjects the input signal (S11) to a second encoding processing by using the first parameter group (S13) and obtains second encoded information (S14). A multiplexing section (154) multiplexes the first encoded information (S12) with the second encoded information (S14) and outputs them via a transmission path N to a decoding apparatus (150).

    摘要翻译: 公开了一种音频编码装置,当对音频信号进行分层编码时,能够在扩展层中使用CELP方法的音频编码实现有效的编码。 在该装置中,第一编码部(115)使输入信号(S11)进行CELP方式的音频编码处理,并将得到的第一编码信息(S12)输出到参数解码部(120)。 参数解码部(120)从第一编码信息(S12)获取第一量化LSP码(L1),第一自适应激励滞后码(A1)等,从这些码中获得第一参数组(S13) ,并将其输出到第二编码部(130)。 第二编码部(130)通过使用第一参数组(S13)对输入信号(S11)进行第二编码处理,并获得第二编码信息(S14)。 复用部(154)将第一编码信息(S12)与第二编码信息(S14)进行复用,并经由传输路径N将其输出到解码装置(150)。

    Signal decoding apparatus and signal decoding method
    7.
    发明授权
    Signal decoding apparatus and signal decoding method 有权
    信号解码装置及信号解码方法

    公开(公告)号:US07636055B2

    公开(公告)日:2009-12-22

    申请号:US12170232

    申请日:2008-07-09

    IPC分类号: H03M7/00 G01L19/12

    摘要: A signal decoding apparatus preventing substantial noise from being produced when transmission error occurs during decoding of scalable-coded information. In this signal decoding apparatus, a coded information operation section (601) performs error detection for base layer coded information, first enhancement layer coded information and second enhancement layer coded information using transmission error detection bits. A decoding operation control section (602) performs ON/OFF control of control switches (606, 607) in accordance with pattern information indicating error detection results and bit rate patterns, and controls the sampling frequencies of sampling frequency adjustment sections (608, 609). A base layer decoding section (603), first enhancement layer decoding section (604) and second enhancement layer decoding section (605) perform decoding of coded information or frame loss compensation processing, depending on error detection results and bit rates. Sampling frequency adjustment sections (608, 609) adjust the sampling frequency of the decoded signal.

    摘要翻译: 一种信号解码装置,用于在可缩放编码信息的解码期间发生传输错误时,防止产生大量噪声。 在该信号解码装置中,编码信息操作部(601)使用传输错误检测位对基层编码信息,第一增强层编码信息和第二增强层编码信息进行错误检测。 解码操作控制部分根据指示错误检测结果和比特率模式的模式信息执行控制开关(606,607)的接通/断开控制,并且控制采样频率调节部分(608,609)的采样频率, 。 基于层解码部(603),第一增强层解码部(604)和第二增强层解码单元(605),根据错误检测结果和比特率进行编码信息或帧丢失补偿处理的解码。 采样频率调整部(608,659)调整解码信号的采样频率。

    CODING DEVICE AND CODING METHOD
    8.
    发明申请
    CODING DEVICE AND CODING METHOD 有权
    编码设备和编码方法

    公开(公告)号:US20090094024A1

    公开(公告)日:2009-04-09

    申请号:US12282287

    申请日:2007-03-08

    IPC分类号: G10L19/04 G10L19/00

    CPC分类号: G10L19/24

    摘要: A coding device is provided with features in which optimum coding in a higher layer is flexibly carried out based on a coding result of a lower layer and a quality audio signal in limited circumstances is served to users. In this coding device, a basic layer coding unit codes an input signal to generate a basic layer information source code and outputs a linear prediction coefficient (LPC) and a quantum LPC, which are parameters calculated at coding, to an expanded layer control unit. A basic layer decoding unit decodes the basic layer information source code. An adding unit reverses a polarity of a basic layer decoded signal, adds the same to the input signal, and calculates a difference signal. The expanded layer control unit generates expanded layer mode information indicative of a coding mode in an expanded layer based on the LPC and the quantum LPC. An expanded layer coding unit codes the difference signal obtained from the adding unit under control of the expanded layer control unit.

    摘要翻译: 编码装置具有这样的特征,其中基于较低层的编码结果灵活地执行较高层中的最佳编码,并且在有限的情况下向用户提供质量音频信号。 在该编码装置中,基本层编码单元对输入信号进行编码以生成基本层信息源代码,并将作为编码计算出的参数的线性预测系数(LPC)和量子LPC输出到扩展层控制单元。 基本层解码单元解码基本层信息源代码。 加法单元反转基本层解码信号的极性,将其相加于输入信号,并计算差分信号。 扩展层控制单元基于LPC和量子LPC生成表示扩展层中的编码模式的扩展层模式信息。 扩展层编码单元在扩展层控制单元的控制下对从加法单元获得的差异信号进行编码。

    Signal Decoding Apparatus
    9.
    发明申请
    Signal Decoding Apparatus 有权
    信号解码装置

    公开(公告)号:US20090006086A1

    公开(公告)日:2009-01-01

    申请号:US11658585

    申请日:2005-07-25

    IPC分类号: G10L21/02

    CPC分类号: G10L19/24 G10L19/005

    摘要: A signal decoding apparatus that can suppress any large unusual sounds to provide decoded signals of improved audibility even when the number of hierarchical layers to be used in the decoding process varies due to a packet loss or the like in communication utilizing a scalable encoding/decoding technique. In the signal decoding apparatus, a gain adjusting part (2308) adjusts, based on a control of a decoding control part (2301), the gain of a basic layer decoded signal outputted from a basic layer decoding part (2302). A gain adjusting part (2309) adjusts, based on a control of the decoding control part (2301), the gain of a first expansion layer decoded signal outputted from a first expansion layer decoding part (2303). A gain adjusting part (2310) adjusts, based on a control of the decoding control part (2301), the gain of a second expansion layer decoded signal outputted from a second expansion layer decoding part (2304).

    摘要翻译: 即使当在解码处理中使用的分层数量由于在使用可伸缩编码/解码技术的通信中的分组丢失等而变化时,也可以抑制任何大的异常声音来提供改善的可听性的解码信号的信号解码装置 。 在信号解码装置中,增益调整部(2308)根据解码控制部(2301)的控制,调整从基本层解码部(2302)输出的基本层解码信号的增益。 增益调整部(2309)根据解码控制部(2301)的控制来调整从第一扩展层解码部(2303)输出的第一扩展层解码信号的增益。 增益调整部(2310)根据解码控制部(2301)的控制来调整从第二扩展层解码部(2304)输出的第二扩展层解码信号的增益。

    Voice/musical sound encoding device and voice/musical sound encoding method
    10.
    发明申请
    Voice/musical sound encoding device and voice/musical sound encoding method 有权
    语音/音乐声音编码装置和语音/音乐声音编码方法

    公开(公告)号:US20070179780A1

    公开(公告)日:2007-08-02

    申请号:US10596773

    申请日:2004-12-20

    IPC分类号: G10L19/00

    CPC分类号: G10L19/032

    摘要: A voice and musical tone coding apparatus is provided that can perform high-quality coding by executing vector quantization taking the characteristics of human hearing into consideration. In this voice and musical tone coding apparatus, a quadrature transformation processing section (201) converts a voice and musical tone signal from time components to frequency components. An auditory masking characteristic value calculation section (203) finds an auditory masking characteristic value from a voice and musical tone signal. A vector quantization section (202) performs vector quantization changing a calculation method of a distance between a code vector found from a preset codebook and a frequency component based on an auditory masking characteristic value.

    摘要翻译: 提供一种语音和乐音编码装置,其可以考虑到人类听觉的特征,执行矢量量化,从而进行高质量的编码。 在这种语音和乐音编码装置中,正交变换处理部(201)将语音和乐音信号从时间分量转换为频率分量。 听觉掩蔽特性值计算部(203)从语音和乐音信号中求出听觉掩蔽特性值。 矢量量化部(202)进行矢量量化,根据听觉掩蔽特性值,改变从预设码本找到的码矢量与频率分量之间的距离的计算方法。