Backwards compatible audio representation
    1.
    发明授权
    Backwards compatible audio representation 有权
    向后兼容音频表示

    公开(公告)号:US09570081B2

    公开(公告)日:2017-02-14

    申请号:US14396638

    申请日:2012-04-26

    CPC分类号: G10L19/008 G10L19/0204

    摘要: It is inter alia disclosed to provide a left signal representation associated with a left audio channel and a right signal representation associated with a right audio channel, each of the left and right signal representations being associated with a plurality of subbands of a frequency range, and to provide directional information associated with at least one subband of the plurality of subbands associated with the left and the right signal representation, the directional information being at least partially indicative of a direction of a sound source with respect to the left and right audio channel.

    摘要翻译: 公开的是提供与左音频通道相关联的左信号表示和与右音频通道相关联的右信号表示,左和右信号表示中的每一个与频率范围的多个子带相关联,以及 提供与左和右信号表示相关联的多个子带中的至少一个子带相关联的方向信息,所述方向信息至少部分地指示声源相对于左和右声道的方向。

    BACKWARDS COMPATIBLE AUDIO REPRESENTATION
    2.
    发明申请
    BACKWARDS COMPATIBLE AUDIO REPRESENTATION 有权
    背后兼容的音频表示

    公开(公告)号:US20150179179A1

    公开(公告)日:2015-06-25

    申请号:US14396638

    申请日:2012-04-26

    IPC分类号: G10L19/008

    CPC分类号: G10L19/008 G10L19/0204

    摘要: It is inter alia disclosed to provide a left signal representation associated with a left audio channel and a right signal representation associated with a right audio channel, each of the left and right signal representations being associated with a plurality of subbands of a frequency range, and to provide directional information associated with at least one subband of the plurality of subbands associated with the left and the right signal representation, the directional information being at least partially indicative of a direction of a sound source with respect to the left and right audio channel.

    摘要翻译: 公开的是提供与左音频通道相关联的左信号表示和与右音频通道相关联的右信号表示,左和右信号表示中的每一个与频率范围的多个子带相关联,以及 提供与左和右信号表示相关联的多个子带中的至少一个子带相关联的方向信息,所述方向信息至少部分地指示声源相对于左和右声道的方向。

    Spatial audio processing apparatus

    公开(公告)号:US10154361B2

    公开(公告)日:2018-12-11

    申请号:US14367912

    申请日:2011-12-22

    IPC分类号: H04S7/00 H04R3/00 H04R29/00

    摘要: An apparatus comprising: a directional analyser configured to determine a directional component of at least two audio signals; an estimator configured to determine at least one virtual position or direction relative to the actual position of the apparatus; and a signal generator configured to generate at least one further audio signal dependent on the at least one virtual position or direction relative to the actual position of the apparatus and the directional component of at least two audio signals.

    STEREO AUDIO SIGNAL ENCODER
    4.
    发明申请
    STEREO AUDIO SIGNAL ENCODER 审中-公开
    立体声音频编码器

    公开(公告)号:US20150371643A1

    公开(公告)日:2015-12-24

    申请号:US14394211

    申请日:2012-04-18

    IPC分类号: G10L19/008 H04S1/00

    摘要: An apparatus comprising a channel analyser configured to analyse an audio signal comprising at least two audio channels to determine at least one parameter associated with a difference between the at least two audio channels; an encoding mode determiner configured to select a multichannel audio signal encoding dependent on the at least one parameter; and a channel encoder configured to encode the audio signal with the multichannel audio signal encoding.

    摘要翻译: 一种装置,包括信道分析器,其被配置为分析包括至少两个音频信道的音频信号,以确定与所述至少两个音频信道之间的差异相关联的至少一个参数; 编码模式确定器,被配置为选择取决于所述至少一个参数的多声道音频信号编码; 以及频道编码器,被配置为用多声道音频信号编码对音频信号进行编码。

    Scalable audio coding
    5.
    发明申请
    Scalable audio coding 审中-公开
    可扩展音频编码

    公开(公告)号:US20080004883A1

    公开(公告)日:2008-01-03

    申请号:US11479994

    申请日:2006-06-30

    IPC分类号: G10L19/00

    CPC分类号: G10L19/24

    摘要: A method and related apparatus for generating a scalable layered audio stream, whereby the method comprises: encoding an input audio signal with a low bitrate audio encoding technique to generate a base layer of a layered data stream representing the audio signal; and producing a plurality of enhancement layers into the layered data stream, at least one of the enhancement layers comprising a coded version of at least a part of the input audio signal rendering at least one of the lower layers comprising low bitrate audio encoded data redundant for decoding the audio signal.

    摘要翻译: 一种用于生成可分级分层音频流的方法和相关装置,由此该方法包括:利用低比特率音频编码技术对输入音频信号进行编码,以生成表示音频信号的分层数据流的基本层; 并且将多个增强层产生到所述分层数据流中,所述增强层中的至少一个包括所述输入音频信号的至少一部分的编码版本,所述至少一部分渲染所述低层中的至少一个包括用于 解码音频信号。

    Method, an apparatus and a computer program for modification of a composite audio signal
    6.
    发明授权
    Method, an apparatus and a computer program for modification of a composite audio signal 有权
    用于修改复合音频信号的方法,装置和计算机程序

    公开(公告)号:US09319821B2

    公开(公告)日:2016-04-19

    申请号:US14374477

    申请日:2012-03-29

    摘要: The present invention provides an arrangement, e.g. a method, an apparatus and a computer program. The arrangement comprises obtaining information indicative of spatial positions of one or more sound sources within an audio image of a composite audio signal, obtaining information indicative of the types of the one or more sound sources, determining, for each of the one or more sound sources, a position in a display of the apparatus indicative of the spatial position of the sound source and causing an apparatus to display an item representing the sound source in the determined position in the display, wherein the item representing the sound source is determined on basis of the type of the sound source. The arrangement further comprises receiving an indication of a user action associated with an item indicative of a first sound source, determining an indication of a user selected modification of the audio image on basis of the user action, and modifying the composite audio signal in accordance with the user selected modification.

    摘要翻译: 本发明提供了一种装置,例如 方法,装置和计算机程序。 该装置包括获得指示复合音频信号的音频图像内的一个或多个声源的空间位置的信息,获得指示一个或多个声源的类型的信息,为一个或多个声源中的每一个确定 ,指示所述设备的显示器中的位置,所述设备的显示器指示所述声源的空间位置,并且使得设备在所述显示器中的所确定位置中显示表示所述声源的项目,其中,所述表示所述声源的项目基于 声源的类型。 该装置还包括接收与指示第一声源的项目相关联的用户动作的指示,基于用户动作确定用户对音频图像的选择的修改的指示,以及根据用户动作来修改复合音频信号 用户选择修改。

    MULTI-CHANNEL ENCODING AND/OR DECODING
    7.
    发明申请
    MULTI-CHANNEL ENCODING AND/OR DECODING 有权
    多通道编码和/或解码

    公开(公告)号:US20130282386A1

    公开(公告)日:2013-10-24

    申请号:US13977230

    申请日:2011-01-05

    IPC分类号: G10L19/008

    摘要: A method comprising: receiving input signals for multiple channels; and parameterizing the received input signals into parameters defining multiple different object spectra and defining a distribution of the multiple different object spectra in the multiple channels.

    摘要翻译: 一种方法,包括:接收多个信道的输入信号; 并将接收到的输入信号参数化成定义多个不同对象光谱的参数,并定义多个通道中多个不同对象光谱的分布。

    AUDIO SCENE APPARATUS
    9.
    发明申请
    AUDIO SCENE APPARATUS 有权
    音频场景设备

    公开(公告)号:US20150098571A1

    公开(公告)日:2015-04-09

    申请号:US14391121

    申请日:2012-04-19

    IPC分类号: H04S7/00

    摘要: An apparatus comprising: a first audio signal analyser configured to analyse a first audio signal to determine at least one audio source, wherein the at least one audio source has a virtual location; a second audio signal analyser configured to analyse a second audio signal to determine at least one localised audio source, wherein the second audio signal is generated from the apparatus audio environment; and a repositioner configured to reposition the virtual location of the at least one audio source dependent on the at least one localised audio source.

    摘要翻译: 一种装置,包括:第一音频信号分析器,被配置为分析第一音频信号以确定至少一个音频源,其中所述至少一个音频源具有虚拟位置; 第二音频信号分析器,被配置为分析第二音频信号以确定至少一个本地化音频源,其中所述第二音频信号是从所述设备音频环境生成的; 以及重新定位器,其被配置为根据所述至少一个本地化音频源重新定位所述至少一个音频源的虚拟位置。

    Method and system for inter-channel signal redundancy removal in perceptual audio coding
    10.
    发明授权
    Method and system for inter-channel signal redundancy removal in perceptual audio coding 有权
    感知音频编码中信道间信号冗余消除的方法和系统

    公开(公告)号:US06934676B2

    公开(公告)日:2005-08-23

    申请号:US09854143

    申请日:2001-05-11

    IPC分类号: G10L19/00

    CPC分类号: H04H20/89 G10L19/008

    摘要: A method and system for coding audio signals in a multi-channel sound system, wherein a plurality of MDCT units are used to reduce the audio signals for providing a plurality of MDCT coefficients. The MDCT coefficients are quantized according to the masking threshold calculated from a psychoacoustic model and a plurality of INT (integer-to-integer) DCT modules are used to remove the cross-channel redundancy in the quantized MDCT coefficients. The output from the INT-DCT modules is Huffman coded and written to a bitstream for transmission or storage.

    摘要翻译: 一种用于在多声道声音系统中编码音频信号的方法和系统,其中使用多个MDCT单元来减少用于提供多个MDCT系数的音频信号。 根据从心理声学模型计算的掩蔽阈值量化MDCT系数,并且使用多个INT(整数 - 整数)DCT模块来去除量化的MDCT系数中的跨信道冗余。 来自INT-DCT模块的输出被霍夫曼编码并写入比特流以进行传输或存储。