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公开(公告)号:US20110137645A1
公开(公告)日:2011-06-09
申请号:US12905852
申请日:2010-10-15
申请人: Peter Vary , Hauke Kruger , Bernd Geiser
发明人: Peter Vary , Hauke Kruger , Bernd Geiser
IPC分类号: G10L19/12
CPC分类号: H03M7/3082 , G10L19/00
摘要: The invention pertains to a method and apparatus of efficient encoding and decoding of vector quantized data. The method and system explores and implements sub-division of a quantization vector space comprising class-leader vectors and representation of the class-leader vectors by a set of class-leader root-vectors facilitating faster encoding and decoding, and reduced storage requirements.
摘要翻译: 本发明涉及对矢量量化数据的有效编码和解码的方法和装置。 该方法和系统通过一组班级领导根矢量探索并实现了包括班级领导矢量和班级领导矢量表示的量化矢量空间的子划分,有助于更快的编码和解码,并降低了存储需求。
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公开(公告)号:US08364476B2
公开(公告)日:2013-01-29
申请号:US12905852
申请日:2010-10-15
申请人: Peter Vary , Hauke Kruger , Bernd Geiser
发明人: Peter Vary , Hauke Kruger , Bernd Geiser
IPC分类号: G10L19/00
CPC分类号: H03M7/3082 , G10L19/00
摘要: The invention pertains to a method and apparatus of efficient encoding and decoding of vector quantized data. The method and system explores and implements sub-division of a quantization vector space comprising class-leader vectors and representation of the class-leader vectors by a set of class-leader root-vectors facilitating faster encoding and decoding, and reduced storage requirements.
摘要翻译: 本发明涉及对矢量量化数据的有效编码和解码的方法和装置。 该方法和系统通过一组班级领导根矢量探索并实现了包括班级领导矢量和班级领导矢量表示的量化矢量空间的子划分,促进了更快的编码和解码,并降低了存储需求。
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公开(公告)号:US20080015852A1
公开(公告)日:2008-01-17
申请号:US11827778
申请日:2007-07-13
申请人: Hauke Kruger , Peter Vary
发明人: Hauke Kruger , Peter Vary
IPC分类号: G10L19/14
CPC分类号: G10L19/12 , G10L2019/0004 , G10L2019/0007 , G10L2019/0013 , H04R25/554
摘要: A wideband audio coding concept is presented that provides good audio quality at bit rates below 3 bits per sample with an algorithmic delay of less than 10 ms. The concept is based on the principle of Linear Predictive Coding (LPC) in an analysis-by-synthesis framework. A spherical codebook is used for quantisation at bit rates which are higher in comparison to low bit rate speech coding for improved performance for audio signals. For superior audio quality, noise shaping is employed to mask the coding noise. In order to reduce the computational complexity of the encoder, the analysis-by synthesis framework has been adapted for the spherical codebook to enable a very efficient excitation vector search procedure. Furthermore, auxiliary information gathered in advance is employed to reduce a computational encoding and decoding complexity at run time significantly. This auxiliary information can be considered as the SCELP codebook. Due to the consideration of the characteristics of the apple-peeling-code construction principle, this codebook can be stored very efficiently in a read-only-memory.
摘要翻译: 提出了一种宽带音频编码概念,在每个样本低于3位的比特率下提供良好的音频质量,算法延迟小于10 ms。 该概念基于分析综合框架中线性预测编码(LPC)的原理。 与用于改善音频信号性能的低比特率语音编码相比,球面码本被用于量化比特率。 为了优越的音频质量,采用噪声整形来掩蔽编码噪声。 为了降低编码器的计算复杂度,分析合成框架已经适用于球形码本,以实现非常有效的激励矢量搜索过程。 此外,采用预先收集的辅助信息显着减少运行时的计算编码和解码复杂度。 该辅助信息可以被认为是SCELP码本。 由于考虑到苹果剥皮码构造原理的特点,该码本可以非常有效地存储在只读存储器中。
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公开(公告)号:US20100002888A1
公开(公告)日:2010-01-07
申请号:US12499250
申请日:2009-07-08
申请人: Hauke Kruger , Peter Vary
发明人: Hauke Kruger , Peter Vary
CPC分类号: G10L19/008
摘要: In one aspect a coding of stereophonic audio signals based on inter-channel linear prediction is provided. Each of the two channels is predicted by filtering the center stereo image of both the channels. Optimal filter coefficients are calculated for both channels is a generalization of Mid/Side and Left/Right joint-stereo coding.
摘要翻译: 在一方面,提供了基于信道间线性预测的立体声音频信号的编码。 通过对两个通道的中心立体图像进行滤波来预测两个通道中的每一个。 对于两个通道计算最佳滤波器系数是中/侧和左/右联合立体声编码的泛化。
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