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公开(公告)号：US07590532B2
公开(公告)日：2009-09-15
申请号：US10307869
申请日：2002-12-02
IPC分类号： G10L19/00
CPC分类号： G10L19/173
摘要： It is so arranged that a voice code can be converted even between voice encoding schemes having different subframe lengths. A voice code conversion apparatus demultiplexes a plurality of code components (Lsp1, Lag1, Gain1, Cb1), which are necessary to reconstruct a voice signal, from voice code in a first voice encoding scheme, dequantizes the codes of each of the components and converts the dequantized values of code components other than an algebraic code component to code components (Lsp2, Lag2, Gp2) of a voice code in a second voice encoding scheme. Further, the voice code conversion apparatus reproduces voice from the dequantized values, dequantizes codes that have been converted to codes in the second voice encoding scheme, generates a target signal using the dequantized values and reproduced voice, inputs the target signal to an algebraic code converter and obtains an algebraic code (Cb2) in the second voice encoding scheme.
摘要翻译： 即使在具有不同子帧长度的语音编码方案之间也可以转换语音代码。 声音码转换装置从第一语音编码方案中的语音码解复用重构语音信号所需的多个代码分量（Lsp1，Lag1，Gain1，Cb1），对每个分量的代码进行去量化，并将其转换 除了代数代码分量之外的代码分量的解量化值，以对第二语音编码方案中的语音代码的分量（Lsp2，Lag2，Gp2）进行编码。 此外，语音代码转换装置从去量化值再现语音，对已经转换为第二语音编码方案中的代码的代码进行解量化，使用去量化值和再现语音生成目标信号，将目标信号输入到代数码转换器 并获得第二语音编码方案中的代数码（Cb2）。
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公开(公告)号：US20050165608A1
公开(公告)日：2005-07-28
申请号：US11060188
申请日：2005-02-17
IPC分类号： G10L13/04
CPC分类号： G10L19/06 , G10L21/0364
摘要： A voice intensifier capable of reducing abrupt changes in the amplification factor between frames and realizing excellent sound quality with less noise feeling by dividing input voices into the sound source characteristic and the vocal tract characteristic, so as to individually intensify the sound source characteristic and the vocal tract characteristic and then synthesize them before being output. The voice intensifier comprises a signal separation unit for separating the input sound signal into the sound source characteristic and the vocal tract characteristic, a characteristic extraction unit for extracting characteristic information from the vocal tract characteristic, a corrective vocal tract characteristic calculation unit for obtaining vocal tract characteristic correction information from the vocal tract characteristic and the characteristic information, a vocal tract characteristic correction unit for correcting the vocal tract characteristic by using the vocal tract characteristic correction information, and a signal synthesizing means for synthesizing the corrective vocal tract characteristic from the vocal tract characteristic correction unit and the sound source characteristic, so that the sound synthesized by the signal synthesizing means is output.
摘要翻译： 一种语音增强器，其能够通过将输入声音分解成声源特性和声道特性来减少帧之间的放大系数的突然变化，并且通过较少的噪音感觉实现优良的音质，从而单独加强声源特性和声带 然后在输出之前进行合成。 语音增强器包括：信号分离单元，用于将输入声音信号分离成声源特征和声道特征;特征提取单元，用于从声道特征中提取特征信息;矫正声道特征计算单元，用于获得声道 来自声道特征和特征信息的特征校正信息，通过使用声道特征校正信息来校正声道特征的声道特征校正单元，以及用于从声道合成矫正声道特征的信号合成装置 特征校正单元和声源特性，从而输出由信号合成装置合成的声音。
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公开(公告)号：US20050023343A1
公开(公告)日：2005-02-03
申请号：US10802168
申请日：2004-03-17
CPC分类号： G10L19/018
摘要： A data embedding device for embedding data in a speech code obtained by encoding a speech in accordance with a speech encoding method based on a voice generation process of a human being, includes an embedding judgment unit, every speech code, judging whether or not data should be embedded in the speech code, and an embedding unit embedding data in two or more parameter codes of a plurality of parameter codes constituting the speech code for which it is judged by the embedding judgment unit that the data should be embedded.
摘要翻译： 一种数据嵌入装置，用于将数据嵌入到根据人的语音产生处理的语音编码方法对语音进行编码而获得的语音码中，包括嵌入判断单元，每个语音码，判断数据是否应该 嵌入在语音码中，以及嵌入单元，将构成嵌入判定单元所判断的语音码的多个参数码的两个以上的参数码嵌入数据，嵌入单元嵌入数据。
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4.发明授权Voice packet loss concealment device, voice packet loss concealment method, receiving terminal, and voice communication system 有权语音包丢失隐藏设备，语音丢包隐藏方法，接收终端和语音通信系统公开(公告)号：US07650280B2
公开(公告)日：2010-01-19
申请号：US11065416
申请日：2005-02-24
CPC分类号： G10L19/005 , H04L29/06027 , H04L65/607 , H04L65/80 , H04M7/006
摘要： In a voice packet communication system, a voice packet loss concealment device compensates for the deterioration of voice quality due to voice packet loss. In the device, a detecting section detects a loss of a voice packet and outputting information; an estimating section estimates the voice characteristics of the lost segment using a pre-loss voice packet received before the lost segment or a post-loss voice packet received after the lost segment; a pitch signal generating section generates a pitch signal having the voice characteristics; and a lost packet generating section outputs the pitch signal generated by the pitch signal generating section, with the voice characteristics estimated by the estimating section, which allows abnormal noise and feeling of mute, subjective deterioration of naturalness and continuity to be improved, and the voice packet loss concealment to be further improved.
摘要翻译： 在语音分组通信系统中，语音分组丢失隐藏装置补偿语音分组丢失导致的语音质量的恶化。 在该装置中，检测部检测出语音分组的丢失并输出信息; 估计部分使用在丢失段之前接收到的丢失前话音分组或在丢失分段之后接收到的丢失后语音分组来估计丢失分段的语音特性; 音调信号产生部分产生具有语音特征的音调信号; 并且丢失分组产生部分输出由音调信号产生部分生成的音调信号与由估计部分估计的语音特征，其允许异常噪声和静音感觉，自然性和连续性的主观恶化被改善，并且语音 丢包隐藏进一步提高。
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5.发明授权Speech decoder, speech decoding method, program and storage media to improve voice clarity by emphasizing voice tract characteristics using estimated formants 有权语音解码器，语音解码方法，程序和存储介质，通过使用估计的共振峰强调语音特征来提高语音清晰度公开(公告)号：US07606702B2
公开(公告)日：2009-10-20
申请号：US11115478
申请日：2005-04-27
CPC分类号： G10L19/26 , G10L19/12 , G10L21/0364 , G10L25/15
摘要： A code separation/decoding unit restores a vocal tract characteristic sp1 and a vocal source signal r1. A vocal tract characteristic modification unit modifies the vocal tract characteristic sp1 and outputs the modified vocal tract characteristic sp2. In this method, an emphasized vocal tract characteristic sp2 is generated to output by applying formant emphasis, using amplification ratios calculated based on estimated formants, directly to the vocal tract characteristic sp1 for instance. A signal synthesis unit synthesizes the modified vocal tract characteristic sp2 and the vocal source signal r1 to generate and output an output voice, s.
摘要翻译： 代码分离/解码单元恢复声道特征sp1和声源信号r1。 声道特征修改单元修改声道特征sp1并输出修改的声道特征sp2。 在该方法中，通过使用共振峰强调，使用基于估计的共振峰计算的放大比例，直接将声发射特征sp2产生到声带特征sp1。 信号合成单元合成修正的声道特征sp2和声源信号r1，以产生并输出输出声音。
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公开(公告)号：US20110208514A1
公开(公告)日：2011-08-25
申请号：US13099687
申请日：2011-05-03
IPC分类号： G10L19/00
CPC分类号： G10L19/018
摘要： A data embedding device for embedding data in a speech code obtained by encoding a speech in accordance with a speech encoding method based on a voice generation process of a human being, includes an embedding judgment unit, every speech code, judging whether or not data should be embedded in the speech code, and an embedding unit embedding data in two or more parameter codes of a plurality of parameter codes constituting the speech code for which it is judged by the embedding judgment unit that the data should be embedded.
摘要翻译： 一种数据嵌入装置，用于将数据嵌入到根据人的语音产生处理的语音编码方法对语音进行编码而获得的语音码中，包括嵌入判断单元，每个语音码，判断数据是否应该 嵌入在语音码中，以及嵌入单元，将构成嵌入判定单元所判断的语音码的多个参数码的两个以上的参数码嵌入数据，嵌入单元嵌入数据。
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7.发明授权Interactive communication system, communication equipment and communication control method 有权交互式通讯系统，通讯设备及通讯控制方式公开(公告)号：US07949016B2
公开(公告)日：2011-05-24
申请号：US11111759
申请日：2005-04-22
IPC分类号： H04J3/12
CPC分类号： H04L47/10 , H04L47/263 , H04L47/38
摘要： Communications from a transmission side to a reception side neither changing the format of voice code data nor requiring another transmission path or increasing the transmission quantity of control information are controlled utilizing information obtained on the reception side. A system includes a first communication equipment provided with a control information embedding unit for embedding control information that is used for a control of communications from a communication partner to the own communication equipment and that is obtained on the own communication equipment side in the communication data to be transmitted to the communication partner side and a second communication equipment provided with a communication control unit for controlling communications to the first communication equipment side using control information transmitted from the first communication equipment.
摘要翻译： 利用在接收侧获得的信息来控制从发送侧到接收侧的通信，既不改变语音代码数据的格式也不需要另一个传输路径或增加控制信息的传输量。 一种系统，包括：第一通信设备，具备控制信息嵌入单元，该控制信息嵌入单元用于将通信对方的通信控制用于本通信设备的控制信息嵌入，并将通信数据中的自身通信设备侧获得的控制信息嵌入到 被发送到通信对方侧，第二通信设备具有通信控制单元，用于使用从第一通信设备发送的控制信息来控制与第一通信设备侧的通信。
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公开(公告)号：US08340973B2
公开(公告)日：2012-12-25
申请号：US13099687
申请日：2011-05-03
IPC分类号： G10L21/00
CPC分类号： G10L19/018
摘要： A data embedding device for embedding data in a speech code obtained by encoding a speech in accordance with a speech encoding method based on a voice generation process of a human being, includes an embedding judgment unit, every speech code, judging whether or not data should be embedded in the speech code, and an embedding unit embedding data in two or more parameter codes of a plurality of parameter codes constituting the speech code for which it is judged by the embedding judgment unit that the data should be embedded.
摘要翻译： 一种数据嵌入装置，用于将数据嵌入到根据人的语音产生处理的语音编码方法对语音进行编码而获得的语音码中，包括嵌入判断单元，每个语音码，判断数据是否应该 嵌入在语音码中，以及嵌入单元，将构成嵌入判定单元所判断的语音码的多个参数码的两个以上的参数码嵌入数据，嵌入单元嵌入数据。
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9.发明授权公开(公告)号：US07310596B2
公开(公告)日：2007-12-18
申请号：US10357323
申请日：2003-02-03
IPC分类号： G10L19/00
CPC分类号： G10L19/018
摘要： When a voice encoding apparatus embeds any data in encoded voice code, the apparatus determines whether data embedding condition is satisfied using a first element code from among element codes constituting the encoded voice code, and a threshold value. If the data embedding condition is satisfied, the apparatus embeds optional data in the encoded voice code by replacing a second element code with the optional data. When a voice decoding apparatus extracts data that has been embedded in encoded voice code, the apparatus determines whether data embedding condition is satisfied using a first element code from among element codes constituting the encoded voice code, and a threshold value. If the data embedding condition is satisfied, the apparatus determines that optional data has been embedded in the second element code portion of the encoded voice code and extracts this embedded data.
摘要翻译： 当语音编码装置将编码语音代码中的任何数据嵌入时，该装置使用构成编码语音代码的元素代码中的第一元素代码和阈值来确定是否满足数据嵌入条件。 如果满足数据嵌入条件，则装置通过用可选数据替换第二元素代码将可选数据嵌入编码语音代码。 当语音解码装置提取嵌入在编码语音代码中的数据时，该装置使用构成编码语音代码的元素代码中的第一元素代码和阈值来确定是否满足数据嵌入条件。 如果满足数据嵌入条件，则该装置确定可选数据已被嵌入编码语音代码的第二元素代码部分并提取该嵌入数据。
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10.发明授权Voice enhancement device by separate vocal tract emphasis and source emphasis 有权语音增强设备通过单独的声道重点和来源强调公开(公告)号：US07152032B2
公开(公告)日：2006-12-19
申请号：US11060188
申请日：2005-02-17
IPC分类号： G10L13/02
CPC分类号： G10L19/06 , G10L21/0364
摘要： A voice intensifier capable of reducing abrupt changes in the amplification factor between frames and realizing excellent sound quality with less noise feeling by dividing input voices into the sound source characteristic and the vocal tract characteristic, so as to individually intensify the sound source characteristic and the vocal tract characteristic and then synthesize them before being output. The voice intensifier comprises a signal separation unit for separating the input sound signal into the sound source characteristic and the vocal tract characteristic, a characteristic extraction unit for extracting characteristic information from the vocal tract characteristic, a corrective vocal tract characteristic calculation unit for obtaining vocal tract characteristic correction information from the vocal tract characteristic and the characteristic information, a vocal tract characteristic correction unit for correcting the vocal tract characteristic by using the vocal tract characteristic correction information, and a signal synthesizing means for synthesizing the corrective vocal tract characteristic from the vocal tract characteristic correction unit and the sound source characteristic, so that the sound synthesized by the signal synthesizing means is output.
摘要翻译： 一种语音增强器，其能够通过将输入声音分解成声源特性和声道特性来减少帧之间的放大系数的突然变化，并且通过较少的噪音感觉实现优良的音质，从而单独加强声源特性和声带 然后在输出之前进行合成。 语音增强器包括：信号分离单元，用于将输入声音信号分离成声源特征和声道特征;特征提取单元，用于从声道特征中提取特征信息;矫正声道特征计算单元，用于获得声道 来自声道特征和特征信息的特征校正信息，通过使用声道特征校正信息来校正声道特征的声道特征校正单元，以及用于从声道合成矫正声道特征的信号合成装置 特征校正单元和声源特性，从而输出由信号合成装置合成的声音。
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