公开(公告)号：WO2023279018A1

公开(公告)日：2023-01-05

申请号：PCT/US2022/073248

申请日：2022-06-29

Applicant: BOSE CORPORATION

Inventor： ABILDGREN, Rasmus ,  BONDE, Casper Stork

IPC: H04L1/00 ,  H04L1/04 ,  H04L1/18 ,  G10L19/005 ,  G10L19/008 ,  G10L19/167 ,  H04L1/0041 ,  H04L1/189 ,  H04L9/088 ,  H04S1/007 ,  H04W4/80 ,  H04W56/001

Abstract: Methods and systems for improving the robustness of wireless communications. The methods and systems provided transmit data packets over a first isochronous stream and transmit one or more supplemental data packets over the same time intervals. The one or more supplemental data packets are used to recreate and/or enhance at least a portion of one or more data packets of the plurality of data packets that have already been sent. Alternatively, the one or more supplemental data packets are used to create and/or enhance at least a portion of one or more data packets of the plurality of data packets that will be received during the next isochronous intervals. The methods and system described herein allow for increased robustness by allowing for better retransmission with correctly received packets and the methods set forth herein work with any Bluetooth broadcaster sink without modification.

公开(公告)号：WO2022240854A1

公开(公告)日：2022-11-17

申请号：PCT/US2022/028563

申请日：2022-05-10

Applicant: SONOS, INC.

Inventor： SO, Won ,  LIN, Ted ,  PETERS, Jeffrey M. ,  ERDMANN, Derek W. ,  SHELDON, Michael

IPC: H04N21/81 ,  H04N21/233 ,  H04N21/439 ,  H04N21/266 ,  G06F21/10 ,  G06F21/602 ,  G06F2221/0753 ,  G06F3/165 ,  G10L19/167 ,  G10L19/173 ,  H04N21/26613 ,  H04N21/8106 ,  H04W24/08 ,  H04W84/12

Abstract: An example first playback device is configured to (i) obtain audio content from a cloud-based media service, the audio content encrypted according to a first encryption scheme, (ii) communicate with a cloud-based license service to obtain information for decrypting the audio content, (iii) use the obtained information to decrypt the audio content, (iv) re-encrypt the decrypted audio content in accordance with a second encryption scheme, (v) transmit the re-encrypted audio content to at least a second playback device that is grouped with the first playback device for synchronous audio playback, and (vi) play back the audio content in synchrony with playback of the audio content by the second playback device.

公开(公告)号：WO2021190039A1

公开(公告)日：2021-09-30

申请号：PCT/CN2020/140722

申请日：2020-12-29

Applicant: 全景声科技南京有限公司

Inventor： 潘兴德 ,  黄旭 ,  谭敏强

IPC: G10L19/16 ,  G10L19/00 ,  G10L19/167

Abstract: 一种可拆解和再编辑音频信号的处理方法及装置，涉及数字信号处理和音频制作技术领域，解决了在保证压缩音频能够完整、正确解码的情况下，不能用一个物理设备完成从原始信号输入到压缩声音信号输出的全部生产流程，从而需要额外的物理设备及传输过程的技术问题，技术方案要点是音频输入模块输入音频信号，辅助数据添加模块为任意音轨添加辅助数据；音频编辑模块对任意音轨进行添加、删除或替换生成新的音轨集合，音频编码模块则对音轨、辅助数据进行编码得到压缩声音信号。能够用一个物理设备完成从原始信号输入到压缩声音信号输出的全部生产流程，并对任意音轨进行添加、删除、替换等操作。

公开(公告)号：WO2023278924A1

公开(公告)日：2023-01-05

申请号：PCT/US2022/072702

申请日：2022-06-02

Applicant: TENCENT AMERICA LLC

Inventor： TIAN, Jun ,  XU, Xiaozhong ,  LIU, Shan

IPC: G10L19/008 ,  H04S7/30 ,  G10L19/167 ,  H04S2400/11 ,  H04S7/303

Abstract: Aspects of the disclosure provide methods and apparatuses for audio processing. In some examples, an apparatus for media processing includes processing circuitry. The processing circuitry receive audio inputs associated with a layered description for a space of interest in an audio scene. The space of interest includes a plurality of subspaces. The layered description includes a first layer and a second layer. The first layer has a common node with a first value that is a common attribute value of two or more subspaces in the plurality of subspaces. The second layer has individual nodes respectively associated with each of the plurality of subspaces. The processing circuitry determines the plurality of subspaces of the space of interest based on the layered description, and renders an audio output based on the audio inputs in response to a location of a subject of the audio scene being in the space of interest.

公开(公告)号：WO2021233886A2

公开(公告)日：2021-11-25

申请号：PCT/EP2021/063092

申请日：2021-05-18

Applicant: DOLBY INTERNATIONAL AB

Inventor： BEER, Michael Franz ,  RUBIN, Eytan ,  FISCHER, Daniel ,  FERSCH, Christof ,  WERNER, Markus

IPC: G10L19/02 ,  G10L19/16 ,  G10L19/18 ,  G10L19/07 ,  G10L19/0204 ,  G10L19/167

Abstract: Described herein are methods, apparatus and computer products for decoding an encoded MPEG-D USAC bitstream. Described herein are such methods, apparatus and computer products that reduce a computational complexity.