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1. 发明申请

US20040230429A1 Block-constrained TCQ method, and method and apparatus for quantizing LSF parameter employing the same in speech coding system 有权
标题翻译：块约束TCQ方法，以及在语音编码系统中量化LSF参数的方法和装置
公开(公告)号：US20040230429A1
公开(公告)日：2004-11-18
申请号：US10780899
申请日：2004-02-19
申请人： Samsung Electronics Co., Ltd.
发明人： Chang-yong Son , Sang-won Kang , Yong-won Shin , Thomas R. Fischer
IPC分类号： G10L019/12
CPC分类号： G10L19/0212 , G10L19/06
摘要： A block-constrained Trellis coded quantization (TCQ) method and a method and apparatus for quantizing line spectral frequency (LSF) parameters employing the same in a speech coding system wherein the LSF coefficient quantizing method includes: removing the direct current (DC) component in an input LSF coefficient vector; generating a first prediction error vector by performing inter-frame and intra-frame prediction for the LSF coefficient vector, in which the DC component is removed, quantizing the first prediction error vector by using the BC-TCQ algorithm, and by performing intra-frame and inter-frame prediction compensation, generating a quantized first LSF coefficient vector; generating a second prediction error vector by performing intra-frame prediction for the LSF coefficient vector, in which the DC component is removed, quantizing the second prediction error vector by using the BC-TCQ algorithm, and then, by performing intra-frame prediction compensation, generating a quantized second LSF coefficient vector; and selectively outputting a vector having a shorter Euclidian distance to the input LSF coefficient vector between the generated quantized first and second LSF coefficient vectors.
摘要翻译：块约束网格编码量化（TCQ）方法和用于量化在语音编码系统中采用该频谱频率频率（LSF）参数的线谱频率（LSF）参数的方法和装置，其中LSF系数量化方法包括：去除直流（DC）分量输入LSF系数向量; 通过对其中去除了DC分量的LSF系数向量进行帧间和帧内预测来生成第一预测误差矢量，通过使用BC-TCQ算法量化第一预测误差向量，并且通过执行帧内和帧间预测补偿，生成量化的第一LSF系数向量; 通过对去除了DC分量的LSF系数向量进行帧内预测，通过使用BC-TCQ算法对第二预测误差向量进行量化，然后通过进行帧内预测补偿来生成第二预测误差矢量产生量化的第二LSF系数矢量; 并且在生成的量化的第一和第二LSF系数向量之间选择性地输出具有较短的欧几里德距离的向量到输入的LSF系数向量。

2. 发明申请

US20040117176A1 Sub-sampled excitation waveform codebooks 有权
标题翻译：次采样激励波形码本
公开(公告)号：US20040117176A1
公开(公告)日：2004-06-17
申请号：US10322245
申请日：2002-12-17
发明人： Ananthapadmanabhan A. Kandhadai , Sharath Manjunath , Khaled El-Maleh
IPC分类号： G10L019/12
CPC分类号： G10L19/20 , G10L19/12 , G10L19/22 , G10L2019/0004
摘要： Methods and apparatus are presented for reducing the number of bits needed to represent an excitation waveform. An acoustic signal in an analysis frame is analyzed to determine whether it is a band-limited signal. A sub-sampled sparse codebook is used to generate the excitation waveform if the acoustic signal is a band-limited signal. The sub-sampled sparse codebook is generated by decimating permissible pulse locations from the codebook track in accordance with the frequency characteristic of the acoustic signal.
摘要翻译：提出了用于减少表示激励波形所需的位数的方法和装置。分析分析帧中的声信号以确定其是否是带限信号。如果声信号是带限信号，则使用子采样稀疏码本来产生激励波形。通过根据声信号的频率特性对来自码本磁道的容许脉冲位置进行抽取，生成子采样稀疏码本。

3. 发明申请

US20040093206A1 Interoperable vocoder 有权
标题翻译：可互操作的声码器
公开(公告)号：US20040093206A1
公开(公告)日：2004-05-13
申请号：US10292460
申请日：2002-11-13
发明人： John C. Hardwick
IPC分类号： G10L019/12
CPC分类号： G10L19/087
摘要： Encoding a sequence of digital speech samples into a bit stream includes dividing the digital speech samples into one or more frames and computing a set of model parameters for the frames. The set of model parameters includes at least a first parameter conveying pitch information. The voicing state of a frame is determined and the first parameter conveying pitch information is modified to designate the determined voicing state of the frame, if the determined voicing state of the frame is equal to one of a set of reserved voicing states. The model parameters are quantized to generate quantizer bits which are used to produce the bit stream.
摘要翻译：将数字语音样本序列编码为比特流包括将数字语音样本分成一个或多个帧并且计算该帧的一组模型参数。模型参数集包括至少传送音调信息的第一参数。如果所确定的帧的发声状态等于一组保留的发声状态，则确定帧的发声状态并且修改传送音调信息的第一参数以指定所确定的帧的发声状态。模型参数被量化以产生用于产生位流的量化器位。

4. 发明申请

US20040068404A1 Speech transcoder and speech encoder 审中-公开
标题翻译：语音转码器和语音编码器
公开(公告)号：US20040068404A1
公开(公告)日：2004-04-08
申请号：US10635235
申请日：2003-08-06
发明人： Masakiyo Tanaka , Yasuji Ota , Masanao Suzuki , Yoshiteru Tsuchinaga
IPC分类号： G10L019/02 , G10L019/12
CPC分类号： G10L19/173
摘要： A speech transcoder includes a codebook in which a plurality of algebraic codes conforming to a second encoding method to serve as conversion candidates of the algebraic code of a first speech code, and a limiting unit for limiting the plurality of algebraic codes stored in the algebraic codebook to at least one algebraic code having a value equal to that of embedded data embedded in a second speech code to limit the conversion candidates, a determination unit for determining an element code corresponding to a converted speech code from the limited conversion candidates.
摘要翻译：语音代码转换器包括码本，其中符合第二编码方法的多个代数码用作第一语音码的代数码的转换候选，以及限制单元，用于限制存储在代数码本中的多个代数码至少一个代数代码，其具有等于嵌入在第二语音代码中的嵌入数据的值的代数以限制转换候选;确定单元，用于从有限的转换候选中确定与转换的语音代码相对应的元素代码。

5. 发明申请

US20040049384A1 Fixed, variable and adaptive bit rate data source encoding (compression) method 有权
标题翻译：固定，可变和自适应比特率数据源编码（压缩）方法
公开(公告)号：US20040049384A1
公开(公告)日：2004-03-11
申请号：US10344586
申请日：2003-04-28
发明人： Anand D. Subramaniam , Bhaskar D. Rao
IPC分类号： G10L019/12
CPC分类号： G10L19/038 , G10L19/008 , G10L19/06 , H03M7/3082
摘要： According to the invention, quantization encoding is conducted using the probability density function of the source, enabling fixed, variable and adaptive rate encoding. To achieve adaptive encoding, an update is conducted with a new observation of the data source, preferably with each new observation of the data source, preferably with each new observation of the data source. The current probability density function of the source is then estimated to produce codepoints to vector quantize the observation of the data source.
摘要翻译：根据本发明，使用源的概率密度函数进行量化编码，实现固定，可变和自适应速率编码。为了实现自适应编码，通过对数据源的新观察来进行更新，优选地利用数据源的每个新的观察，优选地对数据源的每个新的观察进行更新。然后估计源的当前概率密度函数以产生编码点以量化数据源的观察。

6. 发明申请

US20040002857A1 Compensation for utterance dependent articulation for speech quality assessment 有权
标题翻译：用于语音质量评估的话语依赖关系的补偿
公开(公告)号：US20040002857A1
公开(公告)日：2004-01-01
申请号：US10186862
申请日：2002-07-01
发明人： Doh-Suk Kim
IPC分类号： G10L019/12
CPC分类号： G10L25/69
摘要： A method for objective speech quality assessment that accounts for phonetic contents, speaking styles or individual speaker differences by distorting speech signals under speech quality assessment. By using a distorted version of a speech signal, it is possible to compensate for different phonetic contents, different individual speakers and different speaking styles when assessing speech quality. The amount of degradation in the objective speech quality assessment by distorting the speech signal is maintained similarly for different speech signals, especially when the amount of distortion of the distorted version of speech signal is severe. Objective speech quality assessment for the distorted speech signal and the original undistorted speech signal are compared to obtain a speech quality assessment compensated for utterance dependent articulation.
摘要翻译：一种客观语音质量评估方法，通过语音质量评估中的语音信号扭曲来解释语音内容，口语风格或个人发言人差异。通过使用失真版本的语音信号，可以在评估语音质量时补偿不同的语音内容，不同的个人发言者和不同的说话风格。对于不同的语音信号，通过扭曲语音信号的客观语音质量评估中的劣化量被保持不变，特别是当语音信号的失真版本的失真量严重时。对失真语音信号和原始未失真语音信号的目标语音质量评估进行比较，以获得补偿语音质量评估的语音依赖关节。

7. 发明申请

US20030078771A1 Method for searching codebook 有权
标题翻译：搜索码本的方法
公开(公告)号：US20030078771A1
公开(公告)日：2003-04-24
申请号：US10277874
申请日：2002-10-23
申请人： LG Electronics Inc.
发明人： Sung Kyo Jung , Yong Soo Choi , Sung Wan Yoon , Kyung Tae Kim , Dae Hee Youn
IPC分类号： G10L019/12
CPC分类号： G10L19/00 , G10L2019/0013
摘要： A method for searching a codebook which predicts a residual element of an input voice signal includes combining each track of the input signal, forming track units including at least two tracks, and determining a pulse code for each track. The method further includes calculating energy for each track using an energy formula including a vector dot product, arranging or selecting codewords in a small track energy order, and searching or selecting an optimal pulse for a single- or double-pulse track of the selected codeword.
摘要翻译：用于搜索预测输入语音信号的残余元素的码本的方法包括组合输入信号的每个轨道，形成包括至少两个轨道的轨道单元，以及确定每个轨道的脉冲代码。该方法还包括使用包括矢量点积的能量公式来计算每个轨道的能量，以小轨道能量顺序排列或选择码字，以及搜索或选择用于选择的码字的单脉冲或双脉冲轨道的最佳脉冲。

8. 发明申请

US20020173951A1 Multi-mode voice encoding device and decoding device 失效
标题翻译：多模式语音编码装置及解码装置
公开(公告)号：US20020173951A1
公开(公告)日：2002-11-21
申请号：US09914916
申请日：2001-09-06
发明人： Hiroyuki Ehara
IPC分类号： G10L019/12 , G10L021/00 , G10L019/08 , G10L019/04 , G10L019/10
CPC分类号： G10L19/07 , G10L19/18 , G10L2025/783
摘要： Square sum calculator 603 calculates a square sum of evolution in smoothed quantized LSP parameter for each order. A first dynamic parameter is thereby obtained. Square sum calculator 605 calculates a square sum using a square value of each order. The square sum is a second dynamic parameter. Maximum value calculator 606 selects a maximum value from among square values for each order. The maximum value is a third dynamic parameter. The first to third dynamic parameters are output to mode determiner 607, which determines a speech mode by judging the parameters with respective thresholds to output mode information.
摘要翻译：平方和计算器603针对每个顺序计算平滑量化LSP参数中的演进的平方和。由此获得第一动态参数。平方和计算器605使用每个顺序的平方值来计算平方和。平方和是第二个动态参数。最大值计算器606从每个顺序的平方值中选择最大值。最大值是第三个动态参数。第一到第三动态参数被输出到模式确定器607，模式确定器607通过用输出模式信息的相应阈值判断参数来确定语音模式。

9. 发明申请

US20020150183A1 Apparatus comprising a receiving device for receiving data organized in frames and method of reconstructing lacking information 审中-公开
标题翻译：一种装置，包括用于接收以帧组织的数据的接收装置和重建缺少信息的方法
公开(公告)号：US20020150183A1
公开(公告)日：2002-10-17
申请号：US10023397
申请日：2001-12-13
发明人： Gilles Miet
IPC分类号： G10L011/00 , G10L021/00 , G10L019/12 , G10L021/02 , H03D001/00 , H04L027/06
CPC分类号： G10L19/005
摘要： This apparatus (1) is intended to be connected to a cellular telephone network which transmits data in frames (HTR). This apparatus comprises a data reconstructing device (30) triggered by a signal (BFR) which indicates received bad data of a frame before this frame is reconstructed. The data are reconstructed by means of established waveforms of correctly received preceding data. The frame is reconstructed by copying the estimated waveform (westi) as many times as necessary.
摘要翻译：该装置（1）旨在连接到以帧（HTR）发送数据的蜂窝电话网络。该装置包括由信号（BFR）触发的数据重建装置（30），该信号指示在重构该帧之前接收到的帧的不良数据。通过正确接收的先前数据的已建波形来重建数据。通过根据需要多次复制估计波形（westi）来重建帧。

10. 发明申请

US20020099541A1 Method and apparatus for voiced speech excitation function determination and non-acoustic assisted feature extraction 审中-公开
标题翻译：有声语音激励函数确定和非声学辅助特征提取的方法和装置
公开(公告)号：US20020099541A1
公开(公告)日：2002-07-25
申请号：US09990847
申请日：2001-11-21
发明人： Gregory C. Burnett
IPC分类号： G10L021/00 , G10L019/12
CPC分类号： G10L13/04
摘要： A method and apparatus are provided for producing a human voiced speech excitation function. The movement (position versus time) of a tracheal wall is determined using an electromagnetic sensor or equivalent, and the position is translated to pressure by determining the times of largest change in the movement waveform using a derivative, or differential, of the movement waveform. Pulses of various amplitude and width are placed at these times, and the result is shown to contain the same frequency information as the movement signal, although it can be described with considerably fewer parameters.
摘要翻译：提供了一种用于产生人声语音激励功能的方法和装置。使用电磁传感器或等效物确定气管壁的移动（位置对时间），并且通过使用运动波形的导数或差分来确定运动波形的最大变化的次数将位置转换为压力。在这些时间放置各种幅度和宽度的脉冲，并且结果被示出为包含与运动信号相同的频率信息，尽管可以用相当少的参数来描述。

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