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1. 发明申请

WO2010003521A1 METHOD AND DISCRIMINATOR FOR CLASSIFYING DIFFERENT SEGMENTS OF A SIGNAL 审中-公开
标题翻译：用于分类信号不同部分的方法和解决方案
公开(公告)号：WO2010003521A1
公开(公告)日：2010-01-14
申请号：PCT/EP2009/004339
申请日：2009-06-16
申请人： FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V. , FUCHS, Guillaume , BAYER, Stefan , NAGEL, Frederik , HERRE, Jürgen , RETTELBACH, Nikolaus , WABNIK, Stefan , YOKOTANI, Yoshikazu , HIRSCHFELD, Jens , LECOMTE, Jérémie
发明人： FUCHS, Guillaume , BAYER, Stefan , NAGEL, Frederik , HERRE, Jürgen , RETTELBACH, Nikolaus , WABNIK, Stefan , YOKOTANI, Yoshikazu , HIRSCHFELD, Jens , LECOMTE, Jérémie
IPC分类号： G10L11/00 , G10L19/14
CPC分类号： G10L19/20 , G10L19/22 , G10L25/00 , G10L25/51 , G10L2025/783
摘要： For classifying different segments of a signal which comprises segments of at least a first type and second type, e.g. audio and speech segments, the signal is short- term classified (150) on the basis of the at least one short-term feature extracted from the signal and a short- term classification result (152) is delivered. The signal is also long-term classified (154) on the basis of the at least one short-term feature and at least one long-term feature extracted from the signal and a long-term classification result (156) is delivered. The short-term classification result (152) and the long-term classification result (156) are combined (158) to provide an output signal (160) indicating whether a segment of the signal is of the first type or of the second type.
摘要翻译：用于对包括至少第一类型和第二类型的段的信号的不同段进行分类。音频和语音段，信号是基于从信号提取的至少一个短期特征和短期分类结果（152）的短期分类（150）。信号也是基于至少一个短期特征和从信号提取的至少一个长期特征和长期分类结果（156）的长期分类（154）。短期分类结果（152）和长期分类结果（156）被组合（158）以提供指示信号的片段是第一类型还是第二类型的输出信号（160）。

2. 发明申请

WO2010003617A1 LOW BITRATE AUDIO ENCODING/DECODING SCHEME WITH COMMON PREPROCESSING 审中-公开
标题翻译：低分辨率音频编码/解码方案与通用预处理
公开(公告)号：WO2010003617A1
公开(公告)日：2010-01-14
申请号：PCT/EP2009/004873
申请日：2009-07-06
申请人： FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V. , GRILL, Bernhard , BAYER, Stefan , FUCHS, Guillaume , GEYERSBERGER, Stefan , GEIGER, Ralf , HILPERT, Johannes , KRAEMER, Ulrich , LECOMTE, Jeremie , MULTRUS, Markus , NEUENDORF, Max , POPP, Harald , RETTELBACH, Nikolaus , NAGEL, Frederik , DISCH, Sascha , HERRE, Juergen , YOKOTANI, Yoshikazu , WABNIK, Stefan , SCHULLER, Gerald , HIRSCHFELD, Jens
发明人： GRILL, Bernhard , BAYER, Stefan , FUCHS, Guillaume , GEYERSBERGER, Stefan , GEIGER, Ralf , HILPERT, Johannes , KRAEMER, Ulrich , LECOMTE, Jeremie , MULTRUS, Markus , NEUENDORF, Max , POPP, Harald , RETTELBACH, Nikolaus , NAGEL, Frederik , DISCH, Sascha , HERRE, Juergen , YOKOTANI, Yoshikazu , WABNIK, Stefan , SCHULLER, Gerald , HIRSCHFELD, Jens
IPC分类号： G10L19/14
CPC分类号： G10L19/173 , G10L19/0017 , G10L19/008 , G10L19/0212 , G10L19/18 , G10L2019/0008
摘要： An audio encoder comprises a common preprocessing stage (100), an information sink based encoding branch (400) such as spectral domain encoding branch, a information source based encoding branch (500) such as an LPC-domain encoding branch and a switch (200) for switching between these branches at inputs into these branches or outputs of these branches controlled by a decision stage (300). An audio decoder comprises a spectral domain decoding branch, an LPC- domain decoding branch, one or more switches for switching between the branches and a common post-processing stage for post-processing a time-domain audio signal for obtaining a post-processed audio signal.
摘要翻译：音频编码器包括公共预处理级（100），诸如频域编码分支的基于信息集合的编码分支（400），诸如LPC域编码分支的信息源编码分支（500）和开关（200 ），用于在由决策阶段（300）控制的这些分支的这些分支或输出的输入处在这些分支之间切换。音频解码器包括频域解码分支，LPC域解码分支，用于在分支之间切换的一个或多个开关和用于后处理时域音频信号以用于获得后处理音频的公共后处理级信号。

3. 发明申请

WO2010003556A1 AUDIO ENCODER, AUDIO DECODER, METHODS FOR ENCODING AND DECODING AN AUDIO SIGNAL, AUDIO STREAM AND COMPUTER PROGRAM 审中-公开
标题翻译：音频编码器，音频解码器，用于编码和解码音频信号，音频流和计算机程序的方法
公开(公告)号：WO2010003556A1
公开(公告)日：2010-01-14
申请号：PCT/EP2009/004602
申请日：2009-06-25
申请人： FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V. , RETTELBACH, Nikolaus , GRILL, Bernhard , FUCHS, Guillaume , GEYRSBERGER, Stefan , MULTRUS, Markus , POPP, Harald , HERRE, Juergen , WABNIK, Stefan , SCHULLER, Gerald , HIRSCHFELD, Jens
发明人： RETTELBACH, Nikolaus , GRILL, Bernhard , FUCHS, Guillaume , GEYRSBERGER, Stefan , MULTRUS, Markus , POPP, Harald , HERRE, Juergen , WABNIK, Stefan , SCHULLER, Gerald , HIRSCHFELD, Jens
IPC分类号： G10L19/00 , G10L19/02
CPC分类号： G10L19/035 , G10L19/008 , G10L19/02 , G10L19/0204 , G10L19/028 , G10L19/032 , G10L25/18
摘要： An encoder for providing an audio stream on the basis of a transform-domain representation of an input audio signal comprises a quantization error calculator configured to determine a multi-band quantization error over a plurality of frequency bands of the input audio signal for which separate band gain information is available. The encoder also comprises an audio stream provider configured to provide the audio stream such that the audio stream comprises an information describing an audio content of the frequency bands and an information describing the multi- band quantization error. A decoder for providing a decoded representation of an audio signal on the basis of an encoded audio stream representing spectral components of frequency bands of the audio signal comprises a noise filler configured to introduce noise into spectral components of a plurality of frequency bands to which separate frequency band gain information is associated on the basis of a common multi- band noise intensity value.
摘要翻译：一种用于基于输入音频信号的变换域表示来提供音频流的编码器包括：量化误差计算器，被配置为确定输入音频信号的多个频带上的多频带量化误差，获取信息可用。编码器还包括配置成提供音频流的音频流提供器，使得音频流包括描述频带的音频内容的信息和描述多频带量化误差的信息。用于基于表示音频信号的频带的频带的频谱分量的编码音频流提供音频信号的解码表示的解码器包括被配置为将噪声引入多个频带的频谱分量的噪声填充单元，基于公共多频带噪声强度值来关联频带增益信息。

4. 发明申请

WO2010003565A1 NOISE FILLER, NOISE FILLING PARAMETER CALCULATOR, METHOD FOR PROVIDING A NOISE FILLING PARAMETER, METHOD FOR PROVIDING A NOISE-FILLED SPECTRAL REPRESENTATION OF AN AUDIO SIGNAL, CORRESPONDING COMPUTER PROGRAM AND ENCODED AUDIO SIGNAL 审中-公开
标题翻译：噪声填充器，噪声填充参数计算器，提供噪声填充参数的方法，用于提供音频信号的噪声填充光谱表示的方法，对应的计算机程序和编码的音频信号
公开(公告)号：WO2010003565A1
公开(公告)日：2010-01-14
申请号：PCT/EP2009/004653
申请日：2009-06-26
申请人： FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V. , RETTLEBACH, Nikolaus , GRILL, Bernhard , FUCHS, Guillaume , GEYERSBERGER, Stefan , MULTRUS, Markus , POPP, Harald , HERRE, Jürgen , WABNIK, Stefan , SCHULLER, Gerald , HIRSCHFELD, Jens
发明人： RETTLEBACH, Nikolaus , GRILL, Bernhard , FUCHS, Guillaume , GEYERSBERGER, Stefan , MULTRUS, Markus , POPP, Harald , HERRE, Jürgen , WABNIK, Stefan , SCHULLER, Gerald , HIRSCHFELD, Jens
IPC分类号： G10L19/00 , G10L19/02
CPC分类号： G10L19/035 , G10L19/008 , G10L19/02 , G10L19/0204 , G10L19/028 , G10L19/032 , G10L25/18
摘要： A noise filler for providing a noise-filled spectral representation of an audio signal on the basis of an input spectral representation of the audio signal comprises a spectral region identifier configured to identify spectral regions of the input spectral representation spaced from non-zero spectral regions of the input spectral representation by at least one intermediate spectral region, to obtain identified spectral regions, and a noise inserter configured to selectively introduce noise into the identified spectral regions to obtain the noise-filled spectral representation of the audio signal. A noise filling parameter calculator for providing a noise filling parameter on the basis of a quantized spectral representation of an audio signal comprises a spectral region identifier, as mentioned above, and a noise value calculator configured to selectively consider quantization errors of the identified spectral regions for a calculation of the noise filling parameter. Accordingly, an encoded audio signal representation representing the audio signal can be obtained.
摘要翻译：用于基于音频信号的输入频谱表示来提供音频信号的噪声填充频谱表示的噪声填充器包括频谱区域标识符，其被配置为识别与非零频谱区域间隔开的输入频谱表示的频谱区域通过至少一个中间光谱区域的输入光谱表示，以获得所识别的光谱区域，以及噪声插入器，被配置为选择性地将噪声引入识别的光谱区域中，以获得音频信号的噪声填充的频谱表示。用于根据音频信号的量化频谱表示提供噪声填充参数的噪声填充参数计算器包括如上所述的频谱区域标识符，以及噪声值计算器，被配置为选择性地考虑识别的频谱区域的量化误差，以便噪声填充参数的计算。因此，可以获得表示音频信号的编码音频信号表示。

5. 发明申请

WO2010003532A1 APPARATUS AND METHOD FOR ENCODING/DECODING AN AUDIO SIGNAL USING AN ALIASING SWITCH SCHEME 审中-公开
标题翻译：使用切换方案编码/解码音频信号的装置和方法
公开(公告)号：WO2010003532A1
公开(公告)日：2010-01-14
申请号：PCT/EP2009/004374
申请日：2009-06-17
申请人： FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V. , FUCHS, Guillaume , LECOMTE, Jérémie , BAYER, Stefan , GEIGER, Ralf , MULTRUS, Markus , SCHULLER, Gerald , HIRSCHFELD, Jens
发明人： FUCHS, Guillaume , LECOMTE, Jérémie , BAYER, Stefan , GEIGER, Ralf , MULTRUS, Markus , SCHULLER, Gerald , HIRSCHFELD, Jens
IPC分类号： G10L19/02 , G10L19/04 , G10L19/14
CPC分类号： G10L19/20 , G10L19/02 , G10L19/022 , G10L19/04
摘要： An apparatus for encoding an audio signal comprises the windower (11) for windowing a first block of the audio signal using an analysis window having an aliasing portion and a further portion. The apparatus furthermore comprises a processor (12) for processing the first sub-block of the audio signal associated with the aliasing portion by transforming the sub-block from a domain into a different domain subsequent to windowing the first sub-block to obtain the processed first sub-block, and for processing a second sub-block of the audio signal associated with the further portion by transforming the second sub-block from the domain into the different domain before windowing the second sub-block to obtain a processed second sub-block. The apparatus furthermore comprises a transformer (13) for converting the processed first sub-block and the processed second sub-block from the different domain into a further different domain using the same block transform rule to obtain a converted first block which may then be compressed using any of the well-known data compression algorithms. Thus, a critically sampled switch between two coding modes can be obtained, since aliasing portions occurring in two different domains are matched to each other.
摘要翻译：用于编码音频信号的装置包括用于使用具有混叠部分和另一部分的分析窗口对音频信号的第一块进行加窗的加窗器（11）。所述装置还包括处理器（12），用于通过将所述子块从一个域变换成不同的域来处理与所述混叠部分相关联的所述音频信号的所述第一子块，所述第一子块在所述第一子块的加窗之后获得所述处理并且用于通过在开启第二子块之前将第二子块从该域变换为不同的域来处理与另一部分相关联的音频信号的第二子块，以获得处理的第二子块，块。该装置还包括用于使用相同的块变换规则将处理的第一子块和处理的第二子块从不同域转换成另一不同域的变压器（13），以获得可以被压缩的转换后的第一块使用任何众所周知的数据压缩算法。因此，由于发生在两个不同域中的混叠部分彼此匹配，所以可以获得两种编码模式之间的批量采样切换。

6. 发明申请

WO2010115845A1 APPARATUS AND METHOD FOR GENERATING A SYNTHESIS AUDIO SIGNAL AND FOR ENCODING AN AUDIO SIGNAL 审中-公开
标题翻译：用于产生合成音频信号和编码音频信号的装置和方法
公开(公告)号：WO2010115845A1
公开(公告)日：2010-10-14
申请号：PCT/EP2010/054434
申请日：2010-04-01
申请人： FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V. , NAGEL, Frederik , MULTRUS, Markus , LECOMTE, Jérémie , BAYER, Stefan , FUCHS, Guillaume , HILPERT, Johannes , ROBILLIARD, Julien
发明人： NAGEL, Frederik , MULTRUS, Markus , LECOMTE, Jérémie , BAYER, Stefan , FUCHS, Guillaume , HILPERT, Johannes , ROBILLIARD, Julien
IPC分类号： G10L21/02 , G10L19/14
CPC分类号： G10L19/008 , G10L19/18 , G10L21/038
摘要： An apparatus for generating a synthesis audio signal using a patching control signal comprises a first converter, a spectral domain patch generator, a high frequency reconstruction manipulator and a combiner. The first converter is configured for converting a time portion of an audio signal into a spectral representation. The spectral domain patch generator is configured for performing a plurality of different spectral domain patching algorithms, wherein each patching algorithm generates a modified spectral representation comprising spectral components in an upper frequency band derived from corresponding spectral components in a core frequency band of the audio signal. The spectral domain patch generator is furthermore configured to select a first spectral domain patching algorithm from the plurality of patching algorithms for a first time portion and a second spectral domain patching algorithm from the plurality of patching algorithm for a second different time portion in accordance with the patching control signal to obtain the modified spectral representation. The high frequency reconstruction manipulator is configured for manipulating the modified spectral representation or a signal derived from the modified spectral representation in accordance with a spectral band replication parameter to obtain a bandwidth extended signal. Finally, the combiner is configured for combining the audio signal having spectral components in the core frequency band or a signal derived from the audio signal with the bandwidth extended signal to obtain the synthesis audio signal.
摘要翻译：使用补丁控制信号产生合成音频信号的装置包括第一转换器，频域补丁发生器，高频重构操纵器和组合器。第一转换器被配置为将音频信号的时间部分转换为频谱表示。频域补丁生成器被配置用于执行多个不同的频域修补算法，其中每个修补算法生成修改的频谱表示，该修改的频谱表示包括从音频信号的核心频带中的相应频谱分量导出的上频带中的频谱分量。频域补丁生成器还被配置为根据来自第一时间部分的多个修补算法和来自用于第二不同时间部分的多个修补算法的第二频域修补算法来选择第一频域修补算法修补控制信号以获得修改的光谱表示。高频重建操纵器被配置为根据频谱带复制参数来操纵修改的频谱表示或从修改的频谱表示导出的信号，以获得带宽扩展信号。最后，组合器被配置为将具有核心频带中的频谱分量的音频信号或从音频信号导出的信号与带宽扩展信号组合以获得合成音频信号。

7. 发明申请

WO2008151755A1 AUDIO ENCODER FOR ENCODING AN AUDIO SIGNAL HAVING AN IMPULSE- LIKE PORTION AND STATIONARY PORTION, ENCODING METHODS, DECODER, DECODING METHOD; AND ENCODED AUDIO SIGNAL 审中-公开
标题翻译：用于编码具有类似部分和静止部分的音频信号的音频编码器，编码方法，解码器，解码方法; 和编码音频信号
公开(公告)号：WO2008151755A1
公开(公告)日：2008-12-18
申请号：PCT/EP2008/004496
申请日：2008-06-05
申请人： FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V. , HERRE, Jürgen , GEIGER, Ralf , BAYER, Stefan , FUCHS, Guillaume , KRÄMER, Ulrich , RETTELBACH, Nikolaus , GRILL, Bernhard
发明人： HERRE, Jürgen , GEIGER, Ralf , BAYER, Stefan , FUCHS, Guillaume , KRÄMER, Ulrich , RETTELBACH, Nikolaus , GRILL, Bernhard
IPC分类号： G10L19/14
CPC分类号： G10L19/20
摘要： An audio encoder for encoding an audio signal includes an impulse extractor (10) for extracting an impulse-like portion from the audio signal. This impulse-like portion is encoded and forwarded to an output interface (22). Furthermore, the audio encoder includes a signal encoder (16) which encodes a residual signal derived from the original audio signal so that the impulse-like portion is reduced or eliminated in the residual audio signal. The output interface (22) forwards both, the encoded signals, i.e., the encoded impulse signal (12) and the encoded residual signal (20) for transmission or storage. On the decoder-side, both signal portions are separately decoded and then combined to obtain a decoded audio signal.
摘要翻译：用于对音频信号进行编码的音频编码器包括用于从音频信号中提取脉冲状部分的脉冲提取器（10）。该脉冲状部分被编码并转发到输出接口（22）。此外，音频编码器包括信号编码器（16），其对从原始音频信号导出的残留信号进行编码，使得在残留音频信号中减少或消除脉冲状部分。输出接口（22）将编码的信号，即编码的脉冲信号（12）和编码的残留信号（20）两者转发以用于传输或存储。在解码器侧，两个信号部分被单独解码，然后被组合以获得解码的音频信号。

8. 发明申请

WO2011048118A1 AUDIO SIGNAL ENCODER, AUDIO SIGNAL DECODER, METHOD FOR PROVIDING AN ENCODED REPRESENTATION OF AN AUDIO CONTENT, METHOD FOR PROVIDING A DECODED REPRESENTATION OF AN AUDIO CONTENT AND COMPUTER PROGRAM FOR USE IN LOW DELAY APPLICATIONS 审中-公开
标题翻译：音频信号编码器，音频信号解码器，用于提供音频内容的编码表示的方法，用于提供音频内容的解码表示的方法和用于低延迟应用的计算机程序
公开(公告)号：WO2011048118A1
公开(公告)日：2011-04-28
申请号：PCT/EP2010/065753
申请日：2010-10-19
申请人： FRAUNHOFER GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V. , GEIGER, Ralf , SCHNELL, Markus , LECOMTE, Jérémie , SCHMIDT, Konstantin , FUCHS, Guillaume , RETTELBACH, Nikolaus
发明人： GEIGER, Ralf , SCHNELL, Markus , LECOMTE, Jérémie , SCHMIDT, Konstantin , FUCHS, Guillaume , RETTELBACH, Nikolaus
IPC分类号： G10L19/02 , G10L19/04 , G10L19/14
CPC分类号： G10L19/0212 , G10L19/022 , G10L19/20
摘要： An audio signal encoder (100) comprises a transform-domain path (12) configured to obtain a set of spectral coefficients (124) and noise-shaping information (126) on the basis of a time-domain representation (122) of a portion of the audio content to be encoded in a transform-domain mode. The transform-domain path comprises a time-domain-to-frequency-domain converter (130) configured to window a time-domain representation of the audio content, or a pre-processed version thereof, to obtain a windowed representation of the audio content, and to apply a time-domain-to-frequency-domain conversion, to derive a set of spectral coefficients from the windowed time-domain representation of the audio content. The audio signal decoder comprises a CELP path (140) configured to obtain an code-excitation information (144) and a linear-prediction-domain parameter information (146) on the basis of a portion of the audio content to be encoded in a CELP mode. The time-domain-to-frequency-domain converter (136) is configured to apply a predetermined asymmetric analysis window (520) for a windowing of a current portion of the audio content to be encoded in the transform-domain mode and following a portion of the audio content encoded in the transform-domain mode both if the current portion of the audio content is followed by a subsequent portion of the audio content to be encoded in the transform-domain mode and if the current portion of the audio content is followed by a subsequent portion of the audio content to be encoded in the CELP mode. The audio signal encoder is configured to selectively provide an aliasing cancellation information (164) if the current portion of the audio content is followed by a subsequent portion of the audio content to be encoded in the CELP mode.
摘要翻译：音频信号编码器（100）包括变换域路径（12），其经配置以基于部分的时域表示（122）获得一组频谱系数（124）和噪声整形信息（126）要以变换域模式编码的音频内容。变换域路径包括被配置为对音频内容的时域表示或其预处理版本进行窗口化的时域 - 频域转换器（130），以获得音频内容的窗口化表示并且应用时域到频域转换，从音频内容的加窗时域表示中导出一组频谱系数。音频信号解码器包括CELP路径（140），其被配置为基于要在CELP中编码的音频内容的一部分来获得码激励信息（144）和线性预测域参数信息（146）模式。时域 - 频域转换器（136）被配置为对预定的非对称分析窗口（520）应用于在变换域模式中对要编码的音频内容的当前部分的加窗，并且遵循一部分如果音频内容的当前部分后面是要以变换域模式编码的音频内容的后续部分，并且如果跟随音频内容的当前部分，则以变换域模式编码的音频内容通过CELP模式中要编码的音频内容的后续部分。音频信号编码器被配置为如果音频内容的当前部分跟随着要以CELP模式编码的音频内容的后续部分，则选择性地提供混叠消除信息（164）。

9. 发明申请

WO2011147950A1 LOW-DELAY UNIFIED SPEECH AND AUDIO CODEC 审中-公开
标题翻译：低延迟语音和音频编解码器
公开(公告)号：WO2011147950A1
公开(公告)日：2011-12-01
申请号：PCT/EP2011/058701
申请日：2011-05-27
申请人： FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V. , GEIGER, Ralf , SCHNELL, Markus , FUCHS, Guillaume , RAVELLI, Emmanuel , BÄCKSTRÖM, Tom , LECOMTE, Jérémie , SCHMIDT, Konstantin , RETTELBACH, Nikolaus , LUTZKY, Manfred , GRILL, Bernhard
发明人： GEIGER, Ralf , SCHNELL, Markus , FUCHS, Guillaume , RAVELLI, Emmanuel , BÄCKSTRÖM, Tom , LECOMTE, Jérémie , SCHMIDT, Konstantin , RETTELBACH, Nikolaus , LUTZKY, Manfred , GRILL, Bernhard
IPC分类号： G10L19/14
CPC分类号： G10L19/20
摘要： A unified speech and audio decoder is described, which comprises a frame buffer configured to buffer a sub-part of a datastream composed of consecutive frames in units of the frames so that the subpart continuously comprises at least one frame, each frame representing a coded version of a respective portion of consecutive portions of an audio signal, and each frame comprising a mode identifier assigning the respective frame to a respective one of a plurality of coding modes comprising a CELP (codebook excitation linear prediction) coding mode and a transform coded excitation linear prediction coding mode. Further, the unified speech and audio decoder comprises a CELP decoder configured to decode the frames to which the CELP coding mode is assigned to reconstruct the respective portions, and a transform coded excitation linear prediction decoder configured to decode the frames to which the transform coded excitation linear prediction coding mode is assigned, to reconstruct the respective portions, wherein the frame buffer is configured to distribute the frames buffered to the CELP decoder and the transform coded excitation linear prediction decoder under removal of the respective frames from the frame buffer, frame-wise.
摘要翻译：描述了一种统一的语音和音频解码器，其包括帧缓冲器，其被配置为以帧为单位缓冲由连续帧组成的数据流的子部分，使得该子部分连续地包括至少一个帧，每个帧表示编码版本音频信号的连续部分的相应部分，并且每个帧包括将各个帧分配给包括CELP（码本激励线性预测）编码模式和变换编码激励线性的多个编码模式中的相应一个的模式标识符预测编码模式。此外，统一语音和音频解码器包括：CELP解码器，被配置为对分配有CELP编码模式的帧进行解码以重构各个部分;以及变换编码激励线性预测解码器，被配置为对转换编码激励分配线性预测编码模式，以重建各个部分，其中帧缓冲器被配置为在从帧缓冲器移除相应帧的情况下，将缓冲到CELP解码器和变换编码激励线性预测解码器的帧分配。

10. 发明申请

WO2010086194A2 APPARATUS, METHOD AND COMPUTER PROGRAM FOR MANIPULATING AN AUDIO SIGNAL COMPRISING A TRANSIENT EVENT 审中-公开
标题翻译：用于处理包含瞬时事件的音频信号的装置，方法和计算机程序
公开(公告)号：WO2010086194A2
公开(公告)日：2010-08-05
申请号：PCT/EP2010/050042
申请日：2010-01-05
申请人： FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V. , NAGEL, Frederik , WALTHER, Andreas , FUCHS, Guillaume , LECOMTE, Jérémie , POPP, Harald , WIK, Tilo
发明人： NAGEL, Frederik , WALTHER, Andreas , FUCHS, Guillaume , LECOMTE, Jérémie , POPP, Harald , WIK, Tilo
IPC分类号： G10L19/02 , G10L21/04
CPC分类号： G10L21/04 , G10L19/025 , G10L19/028
摘要： An apparatus (100) for manipulating an audio signal (110) comprising a transient event comprises a transient signal replacer (130) configured to replace a transient signal portion, comprising the transient event of the audio signal, with a replacement signal portion adapted to signal energy characteristics of one or more transient signal portions of the audio signal, or to signal energy characteristics of the transient signal portion, to obtain a transient-reduced audio signal (132). The apparatus also comprises a signal processor (140) configured to process the transient-reduced audio signal (132) to obtain a processed version (142) of the transient-reduced audio signal (132). The apparatus also comprises a transient-signal-reinserter (150) configured to combine the processed version of the transient-reduced audio signal (132) with a transient signal (152) representing, in an original or processed form, a transient content of the transient signal portion.
摘要翻译：一种用于操纵包括瞬态事件的音频信号（110）的装置（100）包括瞬态信号替换器（130），其配置成将包括音频信号的瞬态事件的瞬态信号部分替换成适于信号的替换信号部分音频信号的一个或多个瞬态信号部分的能量特性或信号的瞬态信号部分的能量特性，以获得瞬态减小的音频信号（132）。所述装置还包括被配置为处理所述瞬态降低音频信号（132）以获得所述瞬态降低音频信号（132）的处理版本（142）的信号处理器（140）。该装置还包括瞬态信号重新连接器（150），其配置成将经过瞬态减小的音频信号（132）的经处理版本与以原始或处理形式表示原始或处理形式的瞬态内容的瞬态信号（152）瞬态信号部分。

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