公开(公告)号：US20130010985A1

公开(公告)日：2013-01-10

申请号：US13465946

申请日：2012-05-07

申请人： Sascha DISCH ,  Frederick Nagel ,  Nikolaus Rettelbach ,  Markus Multrus ,  Guillaume Fuchs

发明人： Sascha DISCH ,  Frederick Nagel ,  Nikolaus Rettelbach ,  Markus Multrus ,  Guillaume Fuchs

IPC分类号： H04B1/00

CPC分类号： G10L21/04 ,  G10L19/025

摘要： A signal manipulator for manipulating an audio signal having a transient event may have a transient remover, a signal processor and a signal inserter for inserting a time portion in a processed audio signal at a signal location where the transient event was removed before processing by the transient remover, so that a manipulated audio signal has a transient event not influenced by the processing, whereby the vertical coherence of the transient event is maintained instead of any processing performed in the signal processor, which would destroy the vertical coherence of a transient.

公开(公告)号：US20110202353A1

公开(公告)日：2011-08-18

申请号：US13004272

申请日：2011-01-11

申请人： Max Neuendorf ,  Bernhard Grill ,  Ulrich Kraemer ,  Markus Multrus ,  Harald Popp ,  Nikolaus Rettelbach ,  Frederick Nagel ,  Markus Lohwasser ,  Marc Gayer ,  Manuel Jander ,  Virgilio Bacigalupo

发明人： Max Neuendorf ,  Bernhard Grill ,  Ulrich Kraemer ,  Markus Multrus ,  Harald Popp ,  Nikolaus Rettelbach ,  Frederick Nagel ,  Markus Lohwasser ,  Marc Gayer ,  Manuel Jander ,  Virgilio Bacigalupo

IPC分类号： G10L19/00

CPC分类号： G10L21/038 ,  G10L19/008 ,  G10L19/0212 ,  G10L19/022 ,  G10L19/20 ,  G10L21/04

摘要： An apparatus for decoding an encoded audio signal having first and second portions encoded in accordance with first and second encoding algorithms, respectively, BWE parameters for the first and second portions and a coding mode information indicating a first or a second decoding algorithm, includes first and second decoders, a BWE module and a controller. The decoders decode portions in accordance with decoding algorithms for time portions of the encoded signal to obtain decoded signals. The BWE module has a controllable crossover frequency and is configured for performing a bandwidth extension algorithm using the first decoded signal and the BWE parameters for the first portion, and for performing a bandwidth extension algorithm using the second decoded signal and the bandwidth extension parameter for the second portion. The controller controls the crossover frequency for the BWE module in accordance with the coding mode information.

摘要翻译： 一种用于解码具有根据第一和第二编码算法编码的第一和第二部分的编码音频信号的装置，分别用于第一和第二部分的BWE参数和指示第一或第二解码算法的编码模式信息包括第一和第二编码算法 第二解码器，BWE模块和控制器。 解码器根据编码信号的时间部分的解码算法来解码部分，以获得解码信号。 BWE模块具有可控的交叉频率，并且被配置为使用第一解码信号和第一部分的BWE参数来执行带宽扩展算法，并且用于使用第二解码信号和带宽扩展参数来执行带宽扩展算法 第二部分。 控制器根据编码模式信息控制BWE模块的交叉频率。