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51. 发明授权

US09230551B2 Audio encoder or decoder apparatus 有权
标题翻译：音频编码器或解码装置
公开(公告)号：US09230551B2
公开(公告)日：2016-01-05
申请号：US13880038
申请日：2010-10-18
申请人： Lasse Juhani Laaksonen , Mikko Tapio Tammi , Adriana Vasilache , Anssi Sakari Rämö
发明人： Lasse Juhani Laaksonen , Mikko Tapio Tammi , Adriana Vasilache , Anssi Sakari Rämö
IPC分类号： G10L19/00 , G10L19/02 , G10L19/24 , G10L21/038
CPC分类号： G10L19/00 , G10L19/0208 , G10L19/24 , G10L21/038
摘要： An apparatus comprising at least one processor and at least one memory including computer program code the at least one memory and the computer program code configured to, with the at least one processor, cause the apparatus at least to perform: determining from an audio signal at least a first part and a second part; encoding the first part of the audio signal with a first encoder for generating a first encoded audio signal; encoding the second part of the audio signal with a second encoder configured to generate a second encoded audio signal comprising for a first section of the second part an indicator to at least part of the first part of the audio signal; and determining the first section of the second part of the audio signal such that the first encoded audio signal and second encoded audio signal is within a defined encoding efficiency parameter.
摘要翻译：一种装置，包括至少一个处理器和包括计算机程序代码的至少一个存储器，所述至少一个存储器和所述计算机程序代码被配置为与所述至少一个处理器一起使得所述设备至少执行：从音频信号至少第一部分和第二部分; 用用于产生第一编码音频信号的第一编码器对音频信号的第一部分进行编码; 用配置成生成第二编码音频信号的第二编码器对所述音频信号的第二部分进行编码，所述第二编码音频信号包括将所述第二部分的第一部分指示给所述音频信号的所述第一部分的至少一部分; 以及确定音频信号的第二部分的第一部分，使得第一编码音频信号和第二编码音频信号在限定的编码效率参数内。

52. 发明授权

US09202473B2 Multiple scale codebook search 有权
标题翻译：多级码簿搜索
公开(公告)号：US09202473B2
公开(公告)日：2015-12-01
申请号：US14128859
申请日：2011-07-01
申请人： Adriana Vasilache , Lasse Juhani Laaksonen , Anssi Sakari Rämö , Mikko Tapio Tammi
发明人： Adriana Vasilache , Lasse Juhani Laaksonen , Anssi Sakari Rämö , Mikko Tapio Tammi
IPC分类号： G10L19/02 , G10L19/038 , H03M7/30 , H04N19/94 , G10L19/00
CPC分类号： G10L19/02 , G10L19/038 , G10L2019/0013 , H03M7/3082 , H03M7/6041 , H04N19/94
摘要： It is inter alia disclosed to determine, for each set of basis code vectors of a plurality of sets of basis code vectors, a potential basis code vector for encoding an input vector, wherein each set of basis code vectors is associated with at least one scale representative of a plurality of scale representatives, and to determine a code vector for encoding the input vector from a subset of code vectors, said subset of code vectors comprising, for each determined potential basis code vector and each scale representative associated with the set of basis code vectors of the respective potential basis code vector, a code vector based on the respective potential basis code vector scaled by the respective scale representative.
摘要翻译：公开的是为了确定多组基础码向量的每组基本码向量，用于对输入向量进行编码的潜在基准矢量，其中每组基本码向量与至少一个比例尺相关联代表多个比例代表，并且从代码矢量的子集确定用于对输入向量进行编码的代码矢量，所述代码矢量子集包括针对每个确定的潜在基础代码向量和与基准集合相关联的每个比例代表各个电位基本码矢量的码矢量，基于由各个比例代表量化的各个电位基础码矢量的码矢量。

53. 发明申请

US20120197649A1 Audio Coding 有权
标题翻译：音频编码
公开(公告)号：US20120197649A1
公开(公告)日：2012-08-02
申请号：US13497934
申请日：2009-09-25
申请人： Lasse Juhani Laaksonen , Mikko Tapio Tammi , Adriana Vasilache , Anssi Sakari Ramo
发明人： Lasse Juhani Laaksonen , Mikko Tapio Tammi , Adriana Vasilache , Anssi Sakari Ramo
IPC分类号： G10L19/00
CPC分类号： G10L19/0208 , G10L21/038
摘要： A method for encoding an audio signal including: processing a selected subset of a lower series of samples forming a lower frequency spectral band of the audio signal and a higher series of samples forming a higher frequency spectral band of the audio signal to parametrically encode the higher series of samples forming the higher frequency spectral band by identifying a sub-series of the lower series of samples.
摘要翻译：一种用于对音频信号进行编码的方法，包括：处理形成音频信号的较低频谱带的较低系列样本的选定子集，以及形成音频信号的较高频谱带的较高系列样本，以对该较高频带进行参数编码通过识别下一系列样品的子系列，形成较高频谱带的一系列样品。

54. 发明授权

US08060363B2 Audio signal encoding 有权
标题翻译：音频信号编码
公开(公告)号：US08060363B2
公开(公告)日：2011-11-15
申请号：US11706134
申请日：2007-02-13
申请人： Anssi Rämö , Lasse Laaksonen , Adriana Vasilache
发明人： Anssi Rämö , Lasse Laaksonen , Adriana Vasilache
IPC分类号： G10L21/02 , G10L19/02 , G10L19/00
CPC分类号： G10L19/22 , G10L21/02
摘要： For an audio coding, noise suppression is applied to an original audio signal to obtain an audio signal with reduced noise. A coding mode is selected based on the audio signal with reduced noise. The original audio signal is then encoded using this selected coding mode.
摘要翻译：对于音频编码，噪声抑制被应用于原始音频信号以获得具有降低的噪声的音频信号。基于具有降低的噪声的音频信号来选择编码模式。然后使用该选择的编码模式对原始音频信号进行编码。

55. 发明申请

US20100115370A1 METHOD AND APPARATUS FOR ERROR CONCEALMENT OF ENCODED AUDIO DATA 有权
标题翻译：编码音频数据错误隐藏的方法和装置
公开(公告)号：US20100115370A1
公开(公告)日：2010-05-06
申请号：US12482067
申请日：2009-06-10
申请人： Lasse Juhani Laaksonen , Mikko Tapio Tammi , Adriana Vasilache , Anssi Sakari Ramo
发明人： Lasse Juhani Laaksonen , Mikko Tapio Tammi , Adriana Vasilache , Anssi Sakari Ramo
IPC分类号： H03M13/05 , G06F11/10 , G06F17/14
CPC分类号： G10L19/005
摘要： A method of frame error concealment in encoded audio data comprises receiving encoded audio data in a plurality of frames; and using saved one or more parameter values from one or more previous frames to reconstruct a frame with frame error. Using the saved one or more parameter values comprises deriving parameter values based at least part on the saved one or more parameter values and applying the derived values to the frame with frame error.
摘要翻译：编码音频数据中的帧错误隐藏方法包括以多个帧接收经编码的音频数据; 并且使用来自一个或多个先前帧的保存的一个或多个参数值来重建具有帧错误的帧。使用所保存的一个或多个参数值包括至少部分地基于所保存的一个或多个参数值导出参数值，并将所导出的值应用于具有帧错误的帧。

56. 发明申请

US20090313027A1 HIGH-QUALITY ENCODING AT LOW-BIT RATES 有权
标题翻译：低比特率的高质量编码
公开(公告)号：US20090313027A1
公开(公告)日：2009-12-17
申请号：US12138084
申请日：2008-06-12
申请人： Ioan Tabus , Adriana Vasilache
发明人： Ioan Tabus , Adriana Vasilache
IPC分类号： G10L21/00
CPC分类号： G10L19/00 , H03M7/30 , H03M7/4075 , H03M13/1505 , H03M13/6312
摘要： Methods and devices provide improved perceived quality of an audio (or other) coded signal at a low bit-rate. An input signal may be split into an outlier portion and a stationary portion. The outlier portion of the input signal may be encoded. The stationary portion may be divided into subvectors. Each subvector may be classified as trivial or non-trivial. Each trivial subvector may be encoded using a pre-defined pattern. Each non-trivial subvector may be encoded with at least one location of at least one significant sample and a sign of the significant sample.
摘要翻译：方法和设备以低比特率提供改善的音频（或其他）编码信号的感知质量。输入信号可以被分成离群部分和静止部分。可以对输入信号的离群部分进行编码。固定部分可以分成亚向矢量。每个子向量可以被分类为微不足道或不平凡的。可以使用预定义的模式对每个平凡的子向量进行编码。每个非平凡子向量可以用至少一个有效样本的位置和有效样本的符号进行编码。

57. 发明申请

US20080097757A1 Audio coding 审中-公开
标题翻译：音频编码
公开(公告)号：US20080097757A1
公开(公告)日：2008-04-24
申请号：US11586350
申请日：2006-10-24
申请人： Adriana Vasilache
发明人： Adriana Vasilache
IPC分类号： G10L19/02
CPC分类号： H03M7/3082 , G10L19/038 , G10L2019/0007
摘要： Quantized audio data may be represented by a codevector that is associated to a point of an outer shell of a rectangular truncated lattice. For indexing this codevector, number and positions of non-zero components of the codevector are determined. Moreover, signs of the non-zero components are determined. An index is then calculated by combining at least a term representing determined number and positions of non-zero components and a term representing determined signs of non-zero components. For converting the index into a codevector again, separate information on number and positions of non-zero components of a codevector and on signs of components of this codevector are extracted from the index again. The codevector is then assembled such that it complies with the extracted information on number and positions of the non-zero components and on signs of the non-zero components.
摘要翻译：量化音频数据可以由与矩形截短格子的外壳的点相关联的码矢来表示。为了索引该码矢量，确定码矢量的非零分量的数量和位置。此外，确定了非零分量的符号。然后通过组合至少一个表示非零分量的确定数量和位置的术语以及表示非零分量的确定符号的项来计算索引。为了再次将索引转换为代码向量，再次从索引中提取关于码矢量的非零分量和该码矢量的分量的符号的数量和位置的单独信息。然后组合码矢，使得它符合提取的关于非零分量的数量和位置以及非零分量的符号的信息。

58. 发明申请

US20070094027A1 Methods and apparatus for implementing embedded scalable encoding and decoding of companded and vector quantized audio data 有权
标题翻译：用于实现压缩和矢量量化音频数据的嵌入式可扩展编码和解码的方法和装置
公开(公告)号：US20070094027A1
公开(公告)日：2007-04-26
申请号：US11485076
申请日：2006-07-11
申请人： Adriana Vasilache
发明人： Adriana Vasilache
IPC分类号： G10L15/18
CPC分类号： G10L19/035 , G10L19/0208
摘要： The invention concerns a scalable version of an audio encoder based on lattice quantization of companded audio data, wherein the scalability is achieved using bitplane encoding. In methods and apparatus of the invention, a time-domain to discrete-frequency-domain transformation is performed on an audio signal, creating a plurality of frequency domain coefficients. The frequency domain coefficients are organized subband-wise; scaled; companded; and vector quantized using a lattice quantization method, creating scaled, companded and vector quantized coefficient vectors for each subband. Side information comprising an exponent of the scaling factor and the maximum norm of the quantized vector are generated for each subband. The side information is used to calculate the relative importance of the subbands. The subband frequency domain coefficients are then bitplane encoded in order of subband importance, creating an embedded, scalable bitstream from which the encoded audio information can be recovered at finely scalable bit rates. Decoders operating in accordance with the invention decode the scalable bitstream generally by performing the inverse of the encoding operations at a selected bitrate.
摘要翻译：本发明涉及基于压缩音频数据的格子量化的音频编码器的可缩放版本，其中使用位平面编码来实现可扩展性。在本发明的方法和装置中，对音频信号进行离散频域变换的时域，产生多个频域系数。频域系数以子带方式组织; 缩放压扁并使用晶格量化方法量化矢量，为每个子带创建缩放，压缩和向量量化的系数向量。为每个子带生成包括缩放因子的指数和量化矢量的最大范数的边信息。侧面信息用于计算子带的相对重要性。然后，子带频域系数按照子带重要性的顺序进行位平面编码，创建嵌入的可分级比特流，从而可以以精细可缩放的比特率从中恢复编码的音频信息。根据本发明操作的解码器通常通过以选定的比特率执行编码操作的逆来解码可伸缩位流。

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