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1. 发明申请

WO2005112004A1 AUDIO ENCODING WITH DIFFERENT CODING MODELS 审中-公开
标题翻译：使用不同编码模式的音频编码
公开(公告)号：WO2005112004A1
公开(公告)日：2005-11-24
申请号：PCT/IB2004/001579
申请日：2004-05-17
申请人： NOKIA CORPORATION , MÄKINEN, Jari , LAKANIEMI, Ari , OJALA, Pasi
发明人： MÄKINEN, Jari , LAKANIEMI, Ari , OJALA, Pasi
IPC分类号： G10L19/14
CPC分类号： G10L19/20
摘要： The invention relates to a method for supporting an encoding of an audio signal, wherein at least a first and a second coder mode are available for encoding a section of the audio signal. The first coder mode enables a coding based on two different coding models. A selection of a coding model is enabled by a selection rule which is based on signal characteristics which have been determined for a certain analysis window. In order to avoid a misclassification of a section after a switch to the first coder mode, it is proposed that the selection rule is activated only when sufficient sections for the analysis window have been received. The invention relates equally to a module 2,3 in which this method is implemented, to a device 1 and a system comprising such a module 2,3, and to a software program product including a software code for realizing the proposed method.
摘要翻译：本发明涉及一种用于支持音频信号的编码的方法，其中至少第一和第二编码器模式可用于对音频信号的一部分进行编码。第一编码器模式能够进行基于两种不同编码模型的编码。编码模型的选择通过基于已经为特定分析窗口确定的信号特性的选择规则来实现。为了避免在切换到第一编码器模式之后对一个部分进行错误分类，建议仅在接收到用于分析窗口的足够部分时激活选择规则。本发明同样涉及其中实施方法的装置1和包括这种模块2,3的系统的模块2,3以及包括用于实现所提出的方法的软件代码的软件程序产品。

2. 发明申请

WO2009071115A1 A PACKET GENERATOR 审中-公开
标题翻译：分组发生器
公开(公告)号：WO2009071115A1
公开(公告)日：2009-06-11
申请号：PCT/EP2007/063202
申请日：2007-12-03
申请人： NOKIA CORPORATION , OJALA, Pasi , LAKANIEMI, Ari
发明人： OJALA, Pasi , LAKANIEMI, Ari
IPC分类号： H04L29/06 , G01L19/14
CPC分类号： H04L65/607 , G10L19/167 , G10L19/24 , H04L65/608
摘要： A packet generator for generating packets from an input signal configured to: generate at least one first signal, dependent on the input signal, the first signal comprising a first relative time value; generate at least one second signal, dependent on the input signal and associated with the at least one first signal; and generate at least one indicator associated with each of the at least one second signal, each indicator dependent on the first relative time value.
摘要翻译：一种分组生成器，用于根据输入信号产生分组，所述分组生成器被配置为：根据所述输入信号生成至少一个第一信号，所述第一信号包括第一相对时间值; 根据输入信号产生至少一个第二信号并与至少一个第一信号相关联; 并且产生与所述至少一个第二信号中的每一个相关联的至少一个指示符，每个指示符取决于所述第一相对时间值。

3. 发明申请

WO2009037672A2 SCALABLE ERROR DETECTION AND CROSS-SESSION TIMING SYNCHRONIZATION FOR PACKET-SWITCHED TRANSMISSION 审中-公开
标题翻译：用于分组交换传输的可扩展错误检测和交叉时序同步
公开(公告)号：WO2009037672A2
公开(公告)日：2009-03-26
申请号：PCT/IB2008/053823
申请日：2008-09-20
申请人： NOKIA CORPORATION , NOKIA INC , OJALA, Pasi , LAKANIEMI, Ari
发明人： OJALA, Pasi , LAKANIEMI, Ari
CPC分类号： H04L1/0083 , H04L1/0061 , H04L1/008
摘要： A system and method for providing improved scalable error detection and cross- timing synchronization for packet-switched transmission. In one embodiment, checksum error detection is applied for the core layer and for enhancement layers of the scalable payload in such a way that dropping one or several enhancement layers from the payload does not change the value of the checksum. Only one checksum is transmitted, e.g., in the payload or in the header of the lower-layer protocol. The transmitter modifies the encoded bit stream in such a manner that the entity in the network deploying the scalable payload and removing layers from the packet does not need to recalculate the checksum placed in the payload or packet header, even when the payload size is changed. A prefix/tail bit field is added in the beginning/end of each enhancement layer to make the checksum check match with the common checksum. In another embodiment, the receiver may check the correctness of each received layer simultaneously and, if desired, utilize data only from correctly received layers.
摘要翻译：一种用于为分组交换传输提供改进的可缩放错误检测和交叉定时同步的系统和方法。在一个实施例中，以核心层和可扩展有效负载的增强层应用校验和错误检测，使得从有效载荷丢弃一个或几个增强层不会改变校验和的值。仅传送一个校验和，例如在有效载荷或低层协议的报头中。发射机以这样的方式修改编码比特流，使得即使当有效载荷大小改变时，部署可扩展有效载荷并从分组移除层的实体也不需要重新计算放置在有效载荷或分组报头中的校验和。在每个增强层的开始/结束处添加前缀/尾部位字段，以使校验和校验与公共校验和匹配。在另一个实施例中，接收机可以同时检查每个接收层的正确性，并且如果需要，仅利用来自正确接收的层的数据。

4. 发明申请

WO2008046967A1 TIME SCALING OF MULTI-CHANNEL AUDIO SIGNALS 审中-公开
标题翻译：多通道音频信号的时间缩放
公开(公告)号：WO2008046967A1
公开(公告)日：2008-04-24
申请号：PCT/FI2007/050562
申请日：2007-10-17
申请人： NOKIA CORPORATION , OJALA, Pasi , LAKANIEMI, Ari , VIROLAINEN, Jussi
发明人： OJALA, Pasi , LAKANIEMI, Ari , VIROLAINEN, Jussi
IPC分类号： G10L19/00 , G10L21/04 , H04L12/56 , H04S3/02
CPC分类号： H04S3/004 , G10L19/008 , G10L21/04 , H04L47/10 , H04L47/22 , H04L47/283 , H04M3/56 , H04M3/568 , H04M7/006 , H04R27/00 , H04R2227/003 , H04S2420/01 , H04S2420/03
摘要： A method and related apparatus comprising: buffering an encoded audio input signal comprising at least one combined signal of a plurality of audio channels and one or more corresponding sets of side information parameters describing a multi-channel sound image; changing the length of at least one audio frame of said combined signal by adding or removing a segment of said combined signal; modifying said one or more sets of side information parameters with a change corresponding to the change in the length of said at least one audio frame of said combined signal; and transferring said at least one audio frame of said combined signal with a changed length and said modified one or more sets of side information parameters to a further processing unit.
摘要翻译：一种方法和相关装置，包括：缓冲编码的音频输入信号，其包括多个音频通道的至少一个组合信号和描述多声道声像的一个或多个相应的侧信息参数集合; 通过添加或去除所述组合信号的段来改变所述组合信号的至少一个音频帧的长度; 用对应于所述组合信号的所述至少一个音频帧的长度变化的改变来修改所述一组或多组侧信息参数; 以及将具有改变长度的所述组合信号的所述至少一个音频帧和所述修改的一组或多组侧信息参数传送到另一处理单元。

5. 发明申请

WO2007132396A1 ADAPTIVE VOICE ACTIVITY DETECTION 审中-公开
标题翻译：自适应语音活动检测
公开(公告)号：WO2007132396A1
公开(公告)日：2007-11-22
申请号：PCT/IB2007/051699
申请日：2007-05-07
申请人： Nokia Corporation , JÄRVINEN, Kari , OJALA, Pasi , LAKANIEMI, Ari
发明人： JÄRVINEN, Kari , OJALA, Pasi , LAKANIEMI, Ari
IPC分类号： G10L19/00 , G10L19/14 , G10L11/06
CPC分类号： G10L25/93 , G10L19/18 , G10L25/78
摘要： Encoding audio signals with selecting an encoding mode for encoding the signal categorizing the signal into active segments having voice activity and non-active segments having substantially no voice activity by using categorization parameters depending on the selected encoding mode and encoding at least the active segments using the selected encoding mode.
摘要翻译：通过选择编码模式来编码音频信号，用于对信号进行编码，将信号分类为具有语音活动的活动段和基本上不具有语音活动的非活动段，其通过使用根据所选择的编码模式的分类参数，并且至少使用选择编码模式。

6. 发明申请

WO2007091206A1 TIME-SCALING AN AUDIO SIGNAL 审中-公开
标题翻译：时间缩放音频信号
公开(公告)号：WO2007091206A1
公开(公告)日：2007-08-16
申请号：PCT/IB2007/050370
申请日：2007-02-05
申请人： NOKIA CORPORATION , LAKANIEMI, Ari , OJALA, Pasi
发明人： LAKANIEMI, Ari , OJALA, Pasi
IPC分类号： G10L21/04 , H04J3/06
CPC分类号： G10L21/04
摘要： For time-scaling an audio signal, which is distributed to a sequence of frames, one scaling period is removed from the audio signal within a current frame, in case the audio signal is to be shortened in the time-scaling. Moreover, a segment of the audio signal following upon the removed scaling period is modified, for concealing said removal of a scaling period, at least partly in a subsequent frame, in case a segment of the audio signal following upon the removed scaling period within the current frame is shorter than desired for the modification.
摘要翻译：对于在时间缩放中要缩短音频信号的情况下，对分配给帧序列的音频信号进行时间缩放，从当前帧内的音频信号中去除一个缩放周期。此外，在删除的缩放周期之后的音频信号的段被修改，用于在至少部分地在随后的帧中隐藏所述去除缩放周期的情况下，在音频信号的一段在随后的移除的缩放周期之后当前帧短于修改所需的帧。

7. 发明申请

WO2010000303A1 SPEECH DECODER WITH ERROR CONCEALMENT 审中-公开
标题翻译：具有错误隐含的语音解码器
公开(公告)号：WO2010000303A1
公开(公告)日：2010-01-07
申请号：PCT/EP2008/058400
申请日：2008-06-30
申请人： NOKIA CORPORATION , OJALA, Pasi , LAKANIEMI, Ari
发明人： OJALA, Pasi , LAKANIEMI, Ari
IPC分类号： G10L19/00
CPC分类号： G10L19/005
摘要： An apparatus for decoding a speech signal configured to: detect in a bitstream comprising a plurality of speech data frames the absence of at least one speech data frame; determine the absent at least one speech data frame is associated with a transition from a silence signal type frame to a speech signal type frame; adapt at least one speech parameter associated with at least one speech data frame succeeding the absent at least one speech data frame dependent on the determination of the absent at least one speech data frame is associated with the transition from the silence signal type frame to the speech signal type frame.
摘要翻译：一种用于解码语音信号的装置，被配置为：在包含多个语音数据帧的比特流中检测不存在至少一个语音数据帧; 确定缺少的至少一个语音数据帧与从静默信号类型帧到语音信号类型帧的转换相关联; 与至少一个语音数据帧相关联的至少一个语音参数与至少一个语音数据帧相关联的至少一个语音参数与从无声信号类型帧到语音的转换相关联，所述至少一个语音参数与不存在的至少一个语音数据帧相关，信号类型帧。

8. 发明申请

WO2009027936A2 SYSTEM AND METHOD FOR PROVIDING AMR-WB DTX SYNCHRONIZATION 审中-公开
标题翻译：用于提供AMR-WB DTX同步的系统和方法
公开(公告)号：WO2009027936A2
公开(公告)日：2009-03-05
申请号：PCT/IB2008/053459
申请日：2008-08-28
申请人： NOKIA CORPORATION , NOKIA INC , OJALA, Pasi , LAKANIEMI, Ari
发明人： OJALA, Pasi , LAKANIEMI, Ari
IPC分类号： G10L19/00 , H04J3/06
CPC分类号： G10L19/012 , G10L19/005
摘要： A system and method for providing improved adaptive multi-rate wideband (AMR- WB) discontinuous transmission (DTX) synchronization. According to various embodiments, an indication on the start of the inactive speech period is signalled to the decoder via a voice activity detection (VAD) flag a predetermined number of frames before the DTX period will start, i.e., before the SID_FIRST frame is received. When the VAD flag indicates active speech, or when the VAD flag has been set to zero less than the predetermined number of frames ago, the received NO DATA frame can be classified with a high degree of reliability as active speech, i.e., considered as transmitter, network or terminal-initiated signalling, and can be substituted by a SPEECH_LOST frame. When the VAD flag was set to zero eight frames ago or earlier, the NO_DATA frame is classified as DTX.
摘要翻译：一种用于提供改进的自适应多速率宽带（AMR-WB）不连续传输（DTX）同步的系统和方法。根据各种实施例，在DTX周期开始之前，即在接收到SID_FIRST帧之前，通过语音活动检测（VAD）标志将预定数量的帧在无效语音周期开始时的指示信号通知解码器。当VAD标志指示有效语音时，或者当VAD标志已被设置为小于预定数目的帧以前的零时，所接收的NO DATA帧可以以高可靠性分类为活动语音，即被认为是发射机，网络或终端发起的信令，并且可以被SPEECH_LOST帧替代。当VAD标志在八帧前或更早版本设置为零时，NO_DATA帧被分类为DTX。

9. 发明申请

WO2007132377A1 ADAPTIVE JITTER MANAGEMENT CONTROL IN DECODER 审中-公开
标题翻译：解码器中的自适应抖动管理控制
公开(公告)号：WO2007132377A1
公开(公告)日：2007-11-22
申请号：PCT/IB2007/051622
申请日：2007-05-02
申请人： Nokia Corporation , OJALA, Pasi , LAKANIEMI, Ari
发明人： OJALA, Pasi , LAKANIEMI, Ari
IPC分类号： H04J3/06
CPC分类号： H04J3/0632 , G10L19/005 , G10L19/012
摘要： A method, a chipset, a receiver, a transmitter, an electronic device and a system for enabling a control of jitter management of an audio signal is described, wherein the audio signal is distributed to a sequence of frames that are received via a packet switched network, the received frames comprising active audio frames and non-active audio frames, wherein a concatenation of subsequent active audio frames represents an active audio burst, wherein a discrete information of audio activity of the audio signal via the packet switched network is received, the end of an active audio burst is determined based on the received discrete information of audio activity, and wherein jitter compensation of the received frames is controlled on the basis of the determined end of an active audio burst. The invention further relates to a corresponding software program product storing a software code for controlling jitter management of an audio signal.
摘要翻译：描述了一种方法，芯片组，接收器，发射器，电子设备和用于使得能够控制音频信号的抖动管理的系统，其中音频信号被分配到经由分组交换接收的帧序列网络，所接收的帧包括有源音频帧和非有效音频帧，其中随后的活动音频帧的级联表示活动音频突发，其中接收到经由分组交换网络的音频信号的音频活动的离散信息，基于接收到的音频活动的离散信息来确定活动音频突发的结束，并且其中基于所确定的有效音频突发的结束来控制所接收的帧的抖动补偿。本发明还涉及存储用于控制音频信号的抖动管理的软件代码的相应的软件程序产品。

10. 发明申请

WO2007091205A1 TIME-SCALING AN AUDIO SIGNAL 审中-公开
标题翻译：时间缩放音频信号
公开(公告)号：WO2007091205A1
公开(公告)日：2007-08-16
申请号：PCT/IB2007/050369
申请日：2007-02-05
申请人： NOKIA CORPORATION , LAKANIEMI, Ari , OJALA, Pasi
发明人： LAKANIEMI, Ari , OJALA, Pasi
IPC分类号： G10L21/04 , H04J3/06
CPC分类号： G10L21/04
摘要： For time-scaling an audio signal that is distributed to a sequence of frames, frames of the sequence of frames are time scaled whenever needed, resulting in a sequence of variable sized frames. An audio signal in the sequence of variable sized frames is then re-divided into a sequence of equal sized frames for further processing.
摘要翻译：为了对分配给帧序列的音频信号进行时间缩放，帧序列的帧在需要时进行时间缩放，从而产生可变大小的帧序列。然后将可变大小的帧的序列中的音频信号重新划分成相等尺寸的帧的序列，用于进一步处理。

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