公开(公告)号：US09602943B2

公开(公告)日：2017-03-21

申请号：US14384439

申请日：2013-03-21

Applicant: Dolby Laboratories Licensing Corporation

Inventor： Huiqun Deng ,  Xuejing Sun

IPC: H04R5/00 ,  H04S1/00 ,  G10L21/0364 ,  H03G5/00 ,  G10L25/87

CPC classification number: H04S1/007 ,  G10L21/0364 ,  G10L25/87 ,  H04S2400/01 ,  H04S2400/05

Abstract: An audio processing method and apparatus are described. In one embodiment, at least one first sub-band of a first audio signal is suppressed to obtain a reduced first audio signal with reserved sub-bands; suppressing at least one second sub-band of the at least one second audio signal to obtain at least one reduced second audio signal with reserved sub-bands; and mixing the reduced first audio signal and at least one reduced second audio signal. Alternatively, a first spatial auditory property is assigned to a first audio signal so that the first audio signal may be perceived as originating from a first position. Alternatively, rhythmic similarity between at least two audio signals is detected, and time scaling is applied to an audio signal in response to relatively high rhythmic similarity between the audio signal and the other audio signal(s); and then at least two audio signals are mixed.

公开(公告)号：US20150104022A1

公开(公告)日：2015-04-16

申请号：US14384439

申请日：2013-03-21

Applicant: Dolby Laboratories Licensing Corporation

Inventor： Huiqun Deng ,  Xuejing Sun

IPC: H04S1/00

CPC classification number: H04S1/007 ,  G10L21/0364 ,  G10L25/87 ,  H04S2400/01 ,  H04S2400/05

Abstract: An audio processing method and apparatus are described. In one embodiment, at least one first sub-band of a first audio signal is suppressed to obtain a reduced first audio signal with reserved sub-bands; suppressing at least one second sub-band of the at least one second audio signal to obtain at least one reduced second audio signal with reserved sub-bands; and mixing the reduced first audio signal and at least one reduced second audio signal. Alternatively, a first spatial auditory property is assigned to a first audio signal so that the first audio signal may be perceived as originating from a first position. Alternatively, rhythmic similarity between at least two audio signals is detected, and time scaling is applied to an audio signal in response to relatively high rhythmic similarity between the audio signal and the other audio signal(s); and then at least two audio signals are mixed.

Abstract translation: 描述音频处理方法和装置。 在一个实施例中，抑制第一音频信号的至少一个第一子带以获得具有保留子带的减小的第一音频信号; 抑制所述至少一个第二音频信号的至少一个第二子带以获得具有保留的子带的至少一个缩减的第二音频信号; 以及混合减小的第一音频信号和至少一个缩小的第二音频信号。 或者，第一空间听觉属性被分配给第一音频信号，使得第一音频信号可以被感知为源自第一位置。 或者，检测至少两个音频信号之间的节律相似度，并且响应于音频信号和其它音频信号之间相对较高的节律相似度，将时间缩放应用于音频信号; 然后混合至少两个音频信号。

公开(公告)号：US20150071446A1

公开(公告)日：2015-03-12

申请号：US14365072

申请日：2012-12-12

Applicant: Dolby Laboratories Licensing Corporation

Inventor： Xuejing Sun ,  Glenn Dickins ,  Huiqun Deng ,  Zhiwei Shuang ,  Bin Cheng

IPC: H04S5/00 ,  G10L19/26 ,  H04S7/00

CPC classification number: H04S5/00 ,  G10L19/26 ,  G10L21/0364 ,  H04S7/302

Abstract: An audio processing method and an audio processing apparatus are described. A mono-channel audio signal is transformed into a plurality of first subband signals. Proportions of a desired component and a noise component are estimated in each of the subband signals. Second subband signals corresponding respectively to a plurality of channels are generated from each of the first subband signals. Each of the second subband signals comprises a first component and a second component obtained by assigning a spatial hearing property and a perceptual hearing property different from the spatial hearing property to the desired component and the noise component in the corresponding first subband signal respectively, based on a multi-dimensional auditory presentation method. The second subband signals are transformed into signals for rendering with the multi-dimensional auditory presentation method. By assigning different hearing properties to desired sound and noise, the intelligibility of the audio signal can be improved.

Abstract translation: 描述了音频处理方法和音频处理装置。 单声道音频信号被变换成多个第一子带信号。 在每个子带信号中估计所需分量和噪声分量的比例。 从第一子带信号中的每一个产生分别对应于多个信道的第二子带信号。 每个第二子带信号包括第一分量和第二分量，该第一分量和第二分量通过分别将空间听觉特性和不同于空间听觉特性的感知听觉特性分配给相应的第一子带信号中的期望分量和噪声分量，基于 多维听觉呈现方法。 第二子带信号被转换成用于用多维听觉呈现方法渲染的信号。 通过将不同的听觉属性分配给期望的声音和噪声，可以提高音频信号的可懂度。

公开(公告)号：US20150036679A1

公开(公告)日：2015-02-05

申请号：US14384644

申请日：2013-03-21

Applicant: DOLBY LABORATORIES LICENSING CORPORATION

Inventor： Huiqun Deng ,  Xuejing Sun

IPC: G10L19/16 ,  H04L29/06

CPC classification number: G10L19/167 ,  G10L19/005 ,  G10L19/02 ,  H04L65/602 ,  H04L65/607

Abstract: Methods and corresponding apparatuses for transmitting and receiving audio signals are described. A transformation is performed on the audio signals in units of frame in order to obtain transformed audio data of each frame, said transformed audio data consisting of multiple signal components in the frequency domain. These signal components of each frame are distributed into multiple adjacent packets in order to generate packets in which signal components distributed from multiple frames are interleaved. Subsequently, the generated packets are transmitted. Accordingly, in case that packet loss occurs during transmission, the audio signals can be recovered based on the received signal components without consuming additional bandwidth. Therefore, robustness against packet loss can be achieved with little overhead.

Abstract translation: 描述用于发送和接收音频信号的方法和相应的装置。 以帧为单位对音频信号进行变换，以获得每帧的变换音频数据，所述变换的音频数据由频域中的多个信号分量组成。 每个帧的这些信号分量被分配到多个相邻的分组中，以便产生其中从多个帧分配的信号分量交错的分组。 随后，发送生成的分组。 因此，在发送期间发生分组丢失的情况下，可以基于接收到的信号分量来恢复音频信号，而不消耗额外的带宽。 因此，可以以很少的开销实现抗丢包的鲁棒性。

公开(公告)号：US09916837B2

公开(公告)日：2018-03-13

申请号：US14384644

申请日：2013-03-21

Applicant: DOLBY LABORATORIES LICENSING CORPORATION

Inventor： Huiqun Deng ,  Xuejing Sun

IPC: G10L19/16 ,  H04L29/06 ,  G10L19/02 ,  G10L19/005

CPC classification number: G10L19/167 ,  G10L19/005 ,  G10L19/02 ,  H04L65/602 ,  H04L65/607

Abstract: Methods and corresponding apparatuses for transmitting and receiving audio signals are described. A transformation is performed on the audio signals in units of frame in order to obtain transformed audio data of each frame, said transformed audio data consisting of multiple signal components in the frequency domain. These signal components of each frame are distributed into multiple adjacent packets in order to generate packets in which signal components distributed from multiple frames are interleaved. Subsequently, the generated packets are transmitted. Accordingly, in case that packet loss occurs during transmission, the audio signals can be recovered based on the received signal components without consuming additional bandwidth. Therefore, robustness against packet loss can be achieved with little overhead.

公开(公告)号：US09282419B2

公开(公告)日：2016-03-08

申请号：US14365072

申请日：2012-12-12

Applicant: Dolby Laboratories Licensing Corporation

Inventor： Xuejing Sun ,  Glenn Dickins ,  Huiqun Deng ,  Zhiwei Shuang ,  Bin Cheng

IPC: H04S5/00 ,  G10L21/0364 ,  G10L19/26 ,  H04S7/00

CPC classification number: H04S5/00 ,  G10L19/26 ,  G10L21/0364 ,  H04S7/302

Abstract: An audio processing method and an audio processing apparatus are described. A mono-channel audio signal is transformed into a plurality of first subband signals. Proportions of a desired component and a noise component are estimated in each of the subband signals. Second subband signals corresponding respectively to a plurality of channels are generated from each of the first subband signals. Each of the second subband signals comprises a first component and a second component obtained by assigning a spatial hearing property and a perceptual hearing property different from the spatial hearing property to the desired component and the noise component in the corresponding first subband signal respectively, based on a multi-dimensional auditory presentation method. The second subband signals are transformed into signals for rendering with the multi-dimensional auditory presentation method. By assigning different hearing properties to desired sound and noise, the intelligibility of the audio signal can be improved.

Abstract translation: 描述了音频处理方法和音频处理装置。 单声道音频信号被变换成多个第一子带信号。 在每个子带信号中估计所需分量和噪声分量的比例。 从第一子带信号中的每一个产生分别对应于多个信道的第二子带信号。 每个第二子带信号包括第一分量和第二分量，该第一分量和第二分量通过分别将空间听觉特性和不同于空间听觉特性的感知听觉特性分配给相应的第一子带信号中的期望分量和噪声分量，基于 多维听觉呈现方法。 第二子带信号被转换成用于用多维听觉呈现方法渲染的信号。 通过将不同的听觉属性分配给期望的声音和噪声，可以提高音频信号的可懂度。