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1. 发明公开

EP2120233A1 ENCODING AND DECODING METHOD AND APPARATUS 审中-公开
标题翻译： VORRICHTUNG UND VERFAHREN ZUR KODIERUNG UND DEKODIERUNG
公开(公告)号：EP2120233A1
公开(公告)日：2009-11-18
申请号：EP08706547.0
申请日：2008-01-23
申请人： Huawei Technologies Co., Ltd. , Shanghai Jiao Tong University
发明人： GUO, Wei , LIU, Peilin , LI, Wei , XU, Lijing , ZHANG, Qing , XU, Jianfeng , SANG, Shenghu , DU, Zhengzhong , HU, Chen
IPC分类号： G10L19/00 , H03M7/00 , H04N7/26
CPC分类号： G10L19/18 , G10L19/0212 , G10L19/022 , G10L19/04
摘要： An method for encoding comprising: obtaining, according to a data length of an overlapped portion between encoding data of a current frame and encoding data of a previous frame, encoding data corresponding to the data length of the overlapped portion from the previous frame if the previous frame is encoded in a first encoding mode and the current frame is to be encoded in a second encoding mode; and encoding, in the second encoding mode, the obtained encoding data corresponding to the data length of the overlapped portion from the previous frame and encoding data of the current frame to obtain an encoding result. The corresponding decoding method, encoding and decoding apparatuses are also disclosed.
摘要翻译：一种用于编码的方法，包括：根据当前帧的编码数据与前一帧的编码数据之间的重叠部分的数据长度，如果前一帧的编码与前一帧的重叠部分的数据长度对应的编码数据，帧以第一编码模式编码，并且当前帧将以第二编码模式进行编码; 并且在第二编码模式中，对应于来自前一帧的重叠部分的数据长度的获得的编码数据和当前帧的编码数据进行编码以获得编码结果。还公开了相应的解码方法，编码和解码装置。

2. 发明公开

EP2104095A1 A METHOD AND AN APPARATUS FOR ADJUSTING QUANTIZATION QUALITY IN ENCODER AND DECODER 审中-公开
标题翻译：方法和设备用于设置QUANTISIERUNGSQUALITÄTIN A编码器和解码
公开(公告)号：EP2104095A1
公开(公告)日：2009-09-23
申请号：EP07855801.2
申请日：2007-12-26
申请人： Huawei Technologies Co., Ltd.
发明人： LI, Wei , XU, Lijing , ZHANG, Qing , XU, Jianfeng , SANG, Shenghu , DU, Zhengzhong , ZOU, Yao , LIU, Peilin
IPC分类号： G10L19/00 , G10L19/02
CPC分类号： G10L19/032
摘要： A method for adjusting quality of quantization for encoding is disclosed according to embodiments of the present invention. The method includes adjusting a first group of sample values for encoding with at least two scale factors; quantizing the adjusted first group of sample values to obtain quantized sample values; eliminating the impact of the scale factors from the quantized sample values to obtain a second group of sample values; obtaining a global gain with the first group of sample values and the second group of sample values; outputting the quantized sample values, information of the at least two scale factors and the obtained global gain as an encoding stream. Embodiments of the present invention further disclose a method for adjusting quality of quantization for decoding, and apparatuses for adjusting quality of quantization for encoding and decoding. The methods and apparatuses disclosed by the present invention may greatly reduce the implementation complexity and may well adjust the quality of quantization at critical bands so that a better encoding performance may be achieved.
摘要翻译：一种用于调整量化的质量的编码方法是游离缺失盘gemäß对本发明的实施例。该方法包括：调整样值的第一组用于与至少两个比例因子编码; 量化样本值的调整后的第一组，以获得量化的样值; 消除了比例因子的从量化样值的影响，以得到采样值的第二组; 获得与所述第一组样本值和样本值的第二组的全局增益; 输出婷量化样值，所述至少两个比例因子的信息，并获得作为编码流的全局增益。本发明实施例还公开了一种用于调整解码量化的质量的方法和装置，用于调整量化的质量用于编码和解码。通过本发明的游离缺失的方法和设备盘可以大大降低了实现的复杂度，并在临界频带可能调整量化的质量做了更好的编码性能，可以实现。

3. 发明公开

EP2091040A1 A DECODING METHOD AND DEVICE 有权
标题翻译： DEKODIERVERFAHREN UND -VORRICHTUNG
公开(公告)号：EP2091040A1
公开(公告)日：2009-08-19
申请号：EP07817361.4
申请日：2007-12-04
申请人： Huawei Technologies Co., Ltd.
发明人： XU, Jianfeng , XU, Lijing , ZHANG, Qing , LI, Wei , SANG, Shenghu , DU, Zhengzhong
IPC分类号： G10L19/00 , H04L1/00 , H03M13/00 , H04B1/00
CPC分类号： G10L19/005
摘要： A decoding method and device are provided. The decoding method includes receiving a data frame sent from an encoding end; determining a spectrum parameter of a current bad frame if any bad frame occurs; and performing a decoding process according to the calculated and determined spectrum parameter of the current bad frame to obtain a decoded data. The determining the spectrum parameter of the current bad frame specifically includes: first, determining the number of continuous bad frames that occur currently, a spectrum parameter of a good frame before the current bad frame, and a constant mean value of a spectrum parameter; and then, adaptively shifting the spectrum parameter of the good frame towards the constant mean value of the spectrum parameter according to the number of the continuous bad frames to calculate and obtain spectrum parameter information of the current bad frame. When the continuous bad frames occur, the relevance between the spectrum parameter of the nearest good frame and the spectrum parameter of the current bad frame is gradually reduced, so that more accurate spectrum parameter of the current bad frame can be obtained, thereby obtaining a better speech quality under a same code rate and a same frame error rate.
摘要翻译：提供了解码方法和装置。解码方法包括接收从编码端发送的数据帧; 如果发生任何不良帧，则确定当前坏帧的频谱参数; 以及根据当前坏帧的计算和确定的频谱参数执行解码处理以获得解码数据。确定当前坏帧的频谱参数具体包括：首先，确定当前发生的连续坏帧的数量，当前坏帧之前的良好帧的频谱参数和频谱参数的恒定平均值; 然后根据连续不良帧的数量自适应地将好帧的频谱参数向频谱参数的恒定平均值移动，以获得当前不良帧的频谱参数信息。当发生连续不良帧时，最近好帧的频谱参数与当前不良帧的频谱参数之间的相关性逐渐降低，从而可以获得当前不良帧的更准确的频谱参数，从而获得更好的语音质量在相同的码率和相同的帧错误率。

4. 发明授权

EP2091040B1 DECODING METHOD AND DEVICE 有权
标题翻译：解码和设备
公开(公告)号：EP2091040B1
公开(公告)日：2010-04-28
申请号：EP07817361.4
申请日：2007-12-04
申请人： Huawei Technologies Co., Ltd.
发明人： XU, Jianfeng , XU, Lijing , ZHANG, Qing , LI, Wei , SANG, Shenghu , DU, Zhengzhong
IPC分类号： G10L19/00
CPC分类号： G10L19/005
摘要： A decoding method and device are provided. The decoding method includes receiving a data frame sent from an encoding end; determining a spectrum parameter of a current bad frame if any bad frame occurs; and performing a decoding process according to the calculated and determined spectrum parameter of the current bad frame to obtain a decoded data. The determining the spectrum parameter of the current bad frame specifically includes: first, determining the number of continuous bad frames that occur currently, a spectrum parameter of a good frame before the current bad frame, and a constant mean value of a spectrum parameter; and then, adaptively shifting the spectrum parameter of the good frame towards the constant mean value of the spectrum parameter according to the number of the continuous bad frames to calculate and obtain spectrum parameter information of the current bad frame. When the continuous bad frames occur, the relevance between the spectrum parameter of the nearest good frame and the spectrum parameter of the current bad frame is gradually reduced, so that more accurate spectrum parameter of the current bad frame can be obtained, thereby obtaining a better speech quality under a same code rate and a same frame error rate.

5. 发明公开

EP2096629A1 A CLASSING METHOD AND DEVICE FOR SOUND SIGNAL 有权
标题翻译： VERFAHREN UNDGERÄTZUR KLASSIFIZIERUNG VON TONSIGNALEN
公开(公告)号：EP2096629A1
公开(公告)日：2009-09-02
申请号：EP07855800.4
申请日：2007-12-26
申请人： Huawei Technologies Co., Ltd.
发明人： LI, Wei , XU, Lijing , ZHANG, Qing , XU, Jianfeng , SANG, Shenghu , DU, Zhengzhong , YAN, Qin , DENG, Haojiang , WANG,Jun
IPC分类号： G10L11/02 , G10L11/06 , G10L15/08 , G10L21/02
CPC分类号： G10L25/78 , G10L19/20
摘要： A method for classifying sound signals includes: receiving sound signals, and determining the update rate of background noise according to spectral distribution parameters of the background noise and the sound signals; and updating the noise parameters according to the update rate, and classifying the sound signals according to sub-band energy parameters and updated noise parameters. An apparatus for classifying sound signals includes: a background noise parameter updating module, configured to: determine the update rate of background noise according to spectral distribution parameters of the background noise and the current sound signals; and send the determined update rate; and a PSC module, configured to: receive the update rate from the background noise parameter updating module, update the noise parameters, classify the current sound signals according to the sub-band energy parameters and updated noise parameters, and send the sound signal type determined through classification.
摘要翻译：用于分类声音信号的方法包括：接收声音信号，并根据背景噪声和声音信号的频谱分布参数确定背景噪声的更新速率; 并根据更新速率更新噪声参数，并根据子带能量参数和更新的噪声参数对声音信号进行分类。用于分类声音信号的装置包括：背景噪声参数更新模块，用于根据背景噪声和当前声音信号的频谱分布参数确定背景噪声的更新速率; 并发送确定的更新率; 以及PSC模块，被配置为：从所述背景噪声参数更新模块接收更新速率，更新噪声参数，根据子带能量参数和更新的噪声参数对当前声音信号进行分类，并且发送确定的声音信号类型通过分类。

6. 发明公开

EP2081186A1 A METHOD AND DEVICE FOR ACCOMPLISHING SPEECH DECODING IN A SPEECH DECODER 有权
标题翻译： VERFAHREN UND VORRICHTUNG ZUR ERZIELUNG EINER SPRACHDEKODIERUNG IN EINEM SPRACHDEKODIERER
公开(公告)号：EP2081186A1
公开(公告)日：2009-07-22
申请号：EP08700799.3
申请日：2008-01-18
申请人： Huawei Technologies Co., Ltd.
发明人： XU, Jianfeng , XU, Lijing , ZHANG, Qing , LI, Wei , SANG, Shenghu , DU, Zhengzhong , HU, Chen
IPC分类号： G10L19/00 , H04L1/00 , H03M13/00
CPC分类号： G10L19/005 , G10L19/09 , G10L19/107
摘要： The present invention relates to a decoding method and apparatus. The method includes: receiving data frames from the coder; if any erroneous frame appears, calculating and determining a pitch lag parameter of the erroneous frame; decoding the data frames according to the determined pitch lag parameter of the erroneous frame, and obtaining decoded data. The process of determining the pitch lag parameter of the erroneous frame includes: first, determining the number of continuous erroneous frames and the pitch lag parameter of the previous frame; secondly, adjusting the pitch lag parameter of the previous frame according to the number of the continuous erroneous frames and a preset adjustment policy, and calculating and determining the pitch lag parameter of a current erroneous frame, where the preset adjustment policy is: with change of the number of the continuous erroneous frames, the determined pitch lag parameter of the current erroneous frame fluctuates within a set value range. Therefore, excessive periodicity in the decoding process is overcome, and the decoding accuracy is ensured.
摘要翻译：本发明涉及一种解码方法和装置。该方法包括：从编码器接收数据帧; 如果出现任何错误的帧，则计算和确定错误帧的音调滞后参数; 根据确定的错误帧的音调滞后参数对数据帧进行解码，并获得解码数据。确定错误帧的音调滞后参数的处理包括：首先确定连续错误帧的数量和前一帧的音调滞后参数; 其次，根据连续错误帧的数量和预设的调整策略来调整前一帧的音调滞后参数，并且计算并确定当前错误帧的音调滞后参数，其中预设的调整策略是：随着连续错误帧的数量，所确定的当前错误帧的音调滞后参数在设定值范围内波动。因此，克服了解码处理中的周期性过大，确保了解码精度。

7. 发明授权

EP2096629B1 METHOD AND APPARATUS FOR CLASSIFYING SOUND SIGNALS 有权
标题翻译：方法和设备分类的音频信号
公开(公告)号：EP2096629B1
公开(公告)日：2012-10-24
申请号：EP07855800.4
申请日：2007-12-26
申请人： Huawei Technologies Co., Ltd.
发明人： LI, Wei , XU, Lijing , ZHANG, Qing , XU, Jianfeng , SANG, Shenghu , DU, Zhengzhong , YAN, Qin , DENG, Haojiang , WANG,Jun
IPC分类号： G10L11/02
CPC分类号： G10L25/78 , G10L19/20

8. 发明授权

EP2081186B1 A METHOD AND APPARATUS FOR ACCOMPLISHING SPEECH DECODING IN A SPEECH DECODER 有权
标题翻译：方法和装置获得语音解码一个语音解码器
公开(公告)号：EP2081186B1
公开(公告)日：2010-06-16
申请号：EP08700799.3
申请日：2008-01-18
申请人： Huawei Technologies Co., Ltd.
发明人： XU, Jianfeng , XU, Lijing , ZHANG, Qing , LI, Wei , SANG, Shenghu , DU, Zhengzhong , HU, Chen
IPC分类号： G10L19/00 , H04L1/00 , H03M13/00 , G10L19/10
CPC分类号： G10L19/005 , G10L19/09 , G10L19/107

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