VOCODER AND ASSOCIATED METHOD THAT TRANSCODES BETWEEN MIXED EXCITATION LINEAR PREDICTION (MELP) VOCODERS WITH DIFFERENT SPEECH FRAME RATES
    51.
    发明申请
    VOCODER AND ASSOCIATED METHOD THAT TRANSCODES BETWEEN MIXED EXCITATION LINEAR PREDICTION (MELP) VOCODERS WITH DIFFERENT SPEECH FRAME RATES 审中-公开
    混合激发线性预测(MELP)VOCODERS与不同语音帧速率之间的转换和相关方法

    公开(公告)号:WO2007149840B1

    公开(公告)日:2008-03-13

    申请号:PCT/US2007071534

    申请日:2007-06-19

    Applicant: HARRIS CORP

    CPC classification number: G10L19/173 G10L19/24

    Abstract: A vocoder and method transcodes Mixed Excitation Linear Prediction (MELP) encoded data for use at different speech frame rates. Input data is converte (100) into MELP parameters such as used by a first MELP vocoder. These parameters are buffered (102) and a time interpolation (104) is performed on the parameters with quantization to predict spaced points. An encoding function (106) is performed on the interpolated data as a block to produce a reduction in bit-rate as used by a second MELP vocoder at a different speech frame rate than the first MELP vocoder.

    Abstract translation: 声码器和方法对混合激励线性预测(MELP)编码数据进行转码,以便以不同的语音帧速率使用。 输入数据被转换成MELP参数,例如由第一MELP声码器使用。 这些参数被缓冲(102),并且对具有量化的参数执行时间插值(104)以预测间隔点。 对内插数据执行编码功能(106)作为块,以产生与第一MELP声码器不同的语音帧速率由第二MELP声码器使用的比特率的降低。

    TIME-WARPING FRAMES OF WIDEBAND VOCODER
    52.
    发明申请
    TIME-WARPING FRAMES OF WIDEBAND VOCODER 审中-公开
    时间翘曲的宽带VOCODER框架

    公开(公告)号:WO2008024615A2

    公开(公告)日:2008-02-28

    申请号:PCT/US2007/075284

    申请日:2007-08-06

    CPC classification number: G10L19/18 G10L19/087 G10L21/01

    Abstract: A method of communicating speech comprising time-warping a residual low band speech signal to an expanded or compressed version of the residual low band speech signal, time-warping a high band speech signal to an expanded or compressed version of the high band speech signal, and merging the time-warped low band and high band speech signals to give an entire time-warped speech signal. In the low band, the residual low band speech signal is synthesized after time-warping of the residual low band signal while in the high band, an unwarped high band signal is synthesized before time-warping of the high band speech signal. The method may further comprise classifying speech segments and encoding the speech segments. The encoding of the speech segments may be one of code-excited linear prediction, noise-excited linear prediction or 1/8 frame (silence) coding.

    Abstract translation: 一种传送语音的方法,包括将残余低频带语音信号时间扭曲成残余低频带语音信号的扩展或压缩版本,将高频带语音信号时间扭曲成扩展或压缩的 版本的高频带语音信号,并且合并时间扭曲的低频带和高频带语音信号以给出整个时间扭曲的语音信号。 在低频带中,在残余低频带信号的时间扭曲之后合成残余低频带语音信号,而在高频带中,在高频带语音信号的时间扭曲之前合成未扭曲的高频带信号。 该方法可以进一步包括对语音片段进行分类并对语音片段进行编码。 语音段的编码可以是码激励线性预测,噪声激励线性预测或1/8帧(静音)编码之一。

    VOCODER AND ASSOCIATED METHOD THAT TRANSCODES BETWEEN MIXED EXCITATION LINEAR PREDICTION (MELP) VOCODERS WITH DIFFERENT SPEECH FRAME RATES
    54.
    发明申请
    VOCODER AND ASSOCIATED METHOD THAT TRANSCODES BETWEEN MIXED EXCITATION LINEAR PREDICTION (MELP) VOCODERS WITH DIFFERENT SPEECH FRAME RATES 审中-公开
    混合激发线性预测(MELP)VOCODERS与不同语音帧速率之间的转换和相关方法

    公开(公告)号:WO2007149840A1

    公开(公告)日:2007-12-27

    申请号:PCT/US2007/071534

    申请日:2007-06-19

    CPC classification number: G10L19/173 G10L19/24

    Abstract: A vocoder and method transcodes Mixed Excitation Linear Prediction (MELP) encoded data for use at different speech frame rates. Input data is converte (100) into MELP parameters such as used by a first MELP vocoder. These parameters are buffered (102) and a time interpolation (104) is performed on the parameters with quantization to predict spaced points. An encoding function (106) is performed on the interpolated data as a block to produce a reduction in bit-rate as used by a second MELP vocoder at a different speech frame rate than the first MELP vocoder.

    Abstract translation: 声码器和方法对混合激励线性预测(MELP)编码数据进行转码,以便以不同的语音帧速率使用。 输入数据被转换成MELP参数,例如由第一MELP声码器使用。 这些参数被缓冲(102),并且对具有量化的参数执行时间插值(104)以预测间隔点。 对内插数据执行编码功能(106)作为块,以产生与第一MELP声码器不同的语音帧速率由第二MELP声码器使用的比特率的降低。

    CONVERSION ENTRE REPRESENTATIONS EN DOMAINES DE SOUS-BANDES POUR DES BANCS DE FILTRES VARIANT DANS LE TEMPS
    55.
    发明申请
    CONVERSION ENTRE REPRESENTATIONS EN DOMAINES DE SOUS-BANDES POUR DES BANCS DE FILTRES VARIANT DANS LE TEMPS 审中-公开
    针对时间依赖过滤器银行的子域表示之间的转换

    公开(公告)号:WO2007135319A1

    公开(公告)日:2007-11-29

    申请号:PCT/FR2007/051266

    申请日:2007-05-14

    CPC classification number: G10L19/173 G10L19/0208

    Abstract: Conversion entre représentations en domaines de sous-bandes pour des bancs de filtres variant dans le temps L'invention concerne un traitement de transcodage entre domaines différents de sous- bandes, visant à compacter l'application d'un premier vecteur représentant le signal dans un premier domaine de sous-bandes à un banc de filtres de synthèse, puis à un banc de filtres d'analyse, pour obtenir un second vecteur représentant le signal dans un second domaine de sous-bandes. En particulier, le banc de synthèse et/ou le banc d'analyse sont variants dans le temps. On prévoit au sens de l'invention un filtrage matriciel du premier vecteur pour obtenir directement le second vecteur, ce filtrage matriciel étant représenté par une matrice globale de conversion comportant des sous-blocs matriciels (A i0 ,..., A ij ,..., A ip2-1 ) pré-calculés en tenant compte des variations possibles dans le temps des bancs de filtres, puis stockés en mémoire. La matrice globale de conversion est alors construite par appels à la mémoire pour obtenir les sous-blocs pré-calculés à des instants successifs.

    Abstract translation: 用于时间依赖滤波器组的子带场表示之间的转换。 本发明涉及不同子带场之间的代码转换处理操作,目的是将表示第一子带场中的信号的第一矢量的应用压缩到合成滤波器组,然后按顺序分解到分析滤波器组 以获得表示第二子带场中的信号的第二矢量。 特别地,合成库和/或分析库是时间依赖的。 在本发明的范围内,预期第一向量的矩阵滤波是为了直接获得第二向量,该矩阵滤波由全局转换矩阵表示,该全局转换矩阵包括预先计算的矩阵子块(A < 考虑到滤波器组中的可能的时间依赖性变化,然后将其存储到存储器中。 然后通过调用存储器构建全局转换矩阵,以便在预先计算的连续时刻获得子块。

    METHOD AND ARRANGEMENT FOR SPEECH CODING IN WIRELESS COMMUNICATION SYSTEMS
    56.
    发明申请
    METHOD AND ARRANGEMENT FOR SPEECH CODING IN WIRELESS COMMUNICATION SYSTEMS 审中-公开
    无线通信系统中语音编码的方法和布置

    公开(公告)号:WO2007091926A1

    公开(公告)日:2007-08-16

    申请号:PCT/SE2006/000166

    申请日:2006-02-06

    CPC classification number: G10L19/24 G10L19/005 H04L47/10

    Abstract: The present invention relates to speech coding in wireless and wireline communication systems. The present invention provides a method of saving bandwidth by a controlled dropping of speech frames at an encoder (125) in a sending communication device (105). The dropping is controlled in a manner to minimize the effects on the speech quality after the decoding in the receiving communication device (110), by assuring that the state mismatch between the encoder (125) and the decoder (145) is removed or at least significantly reduced. This is achieved by letting the encoder (125) run an ECU algorithm with a similar behavior as the one running in the decoder (145) in the receiving communication device (110).

    Abstract translation: 本发明涉及无线和有线通信系统中的语音编码。 本发明提供一种通过在发送通信设备(105)中的编码器(125)处控制丢弃语音帧来节省带宽的方法。 通过确保去除了编码器(125)和解码器(145)之间的状态不匹配,或者至少在编码器(125)和解码器(145)之间的状态不匹配的情况下,通过在接收通信设备(110)中解码之后对语音质量的影响最小化 明显减少 这通过使编码器(125)运行具有与在接收通信设备(110)中的解码器(145)中运行的ECU算法类似的行为的ECU算法来实现。

    METHOD AND APPARATUS FOR PROCESSING A SIGNAL
    57.
    发明申请
    METHOD AND APPARATUS FOR PROCESSING A SIGNAL 审中-公开
    用于处理信号的方法和装置

    公开(公告)号:WO2007043844A1

    公开(公告)日:2007-04-19

    申请号:PCT/KR2006/004152

    申请日:2006-10-13

    Abstract: The present invention relates to a method and apparatus for processing a signal. An object of the present invention devised to solve the problem lies on a method and apparatus for processing a signal, which allows a signal having optimized signal transmission efficiency to be transmitted/received. According to an aspect of the present invention, there is provided a method for processing a signal, the method including receiving a broadcasting signal including audio data coded using a pilot reference value and a pilot difference value, demodulating the broadcasting signal in consideration of a scattered pilot which varies over time and a continual pilot which is fixed over time in a frame of the received broadcasting signal and decoding the demodulated signal to obtain a broadcasting transmission stream, demultiplexing the broadcasting transmission stream to obtain coded audio data in an Internet protocol (IP) packet and audio data coding identification information, decoding data according to a data coding scheme indicated by the audio data coding identification information, wherein the data coding scheme includes at least a pilot coding scheme, the pilot coding scheme decodes the data using the pilot reference value corresponding to a plurality of data and the pilot difference value, and the pilot difference value is generated using the data and the pilot reference value.

    Abstract translation: 本发明涉及用于处理信号的方法和装置。 解决问题的本发明的目的在于一种用于处理信号的方法和装置,其允许发送/接收具有优化的信号传输效率的信号。 根据本发明的一个方面,提供了一种处理信号的方法,该方法包括接收包括使用导频参考值和导频差值编码的音频数据的广播信号,考虑到分散的解调广播信号 随着时间变化的导频和在所接收的广播信号的帧中随时间而固定的连续导频并解码解调信号以获得广播传输流,解复用广播传输流以获得互联网协议(IP)中的编码音频数据 )分组和音频数据编码识别信息,根据由音频数据编码识别信息指示的数据编码方案解码数据,其中数据编码方案至少包括导频编码方案,导频编码方案使用导频参考解码数据 值对应于多个数据和导频差值va lue,并且使用数据和导频参考值生成导频差分值。

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