公开(公告)号：US09622014B2

公开(公告)日：2017-04-11

申请号：US14409440

申请日：2013-06-17

Applicant: Dolby Laboratories Licensing Corporation

Inventor： Christophe Chabanne ,  Brett Crockett ,  Spencer Hooks ,  Alan Seefeldt ,  Nicolas R. Tsingos ,  Mark Tuffy ,  Rhonda Wilson

IPC: H04S7/00 ,  H04S3/00

CPC classification number: H04S7/305 ,  H04S3/008 ,  H04S2400/03 ,  H04S2420/03

Abstract: Embodiments are described for a method and system of rendering and playing back spatial audio content using a channel-based format. Spatial audio content that is played back through legacy channel-based equipment is transformed into the appropriate channel-based format resulting in the loss of certain positional information within the audio objects and positional metadata comprising the spatial audio content. To retain this information for use in spatial audio equipment even after the audio content is rendered as channel-based audio, certain metadata generated by the spatial audio processor is incorporated into the channel-based data. The channel-based audio can then be sent to a channel-based audio decoder or a spatial audio decoder. The spatial audio decoder processes the metadata to recover at least some positional information that was lost during the down-mix operation by upmixing the channel-based audio content back to the spatial audio content for optimal playback in a spatial audio environment.

公开(公告)号：US09602940B2

公开(公告)日：2017-03-21

申请号：US15282631

申请日：2016-09-30

Applicant: Dolby Laboratories Licensing Corporation

Inventor： Sunil Bharitkar ,  Brett Crockett ,  Louis Fielder ,  Michael Rockwell

IPC: H04R29/00 ,  H04R3/12

CPC classification number: H04R29/002 ,  H04H60/04 ,  H04H60/33 ,  H04R3/12 ,  H04R29/001 ,  H04R2430/03

Abstract: In some embodiments, a method for monitoring speakers within an audio playback system (e.g., movie theater) environment. In typical embodiments, the monitoring method assumes that initial characteristics of the speakers (e.g., a room response for each of the speakers) have been determined at an initial time, and relies on one or more microphones positioned in the environment to perform a status check on each of the speakers to identify whether a change to at least one characteristic of any of the speakers has occurred since the initial time. In other embodiments, the method processes data indicative of output of a microphone to monitor audience reaction to an audiovisual program. Other aspects include a system configured (e.g., programmed) to perform any embodiment of the inventive method, and a computer readable medium (e.g., a disc) which stores code for implementing any embodiment of the inventive method.

公开(公告)号：US20150146873A1

公开(公告)日：2015-05-28

申请号：US14409440

申请日：2013-06-17

Applicant: Dolby Laboratories Licensing Corporation

Inventor： Christophe Chabanne ,  Brett Crockett ,  Spencer Hooks ,  Alan Seefeldt ,  Nicolas R. Tsingos ,  Mark Tuffy ,  Rhonda Wilson

IPC: H04S7/00

CPC classification number: H04S7/305 ,  H04S3/008 ,  H04S2400/03 ,  H04S2420/03

Abstract: Embodiments are described for a method and system of rendering and playing back spatial audio content using a channel-based format. Spatial audio content that is played back through legacy channel-based equipment is transformed into the appropriate channel-based format resulting in the loss of certain positional information within the audio objects and positional metadata comprising the spatial audio content. To retain this information for use in spatial audio equipment even after the audio content is rendered as channel-based audio, certain metadata generated by the spatial audio processor is incorporated into the channel-based data. The channel-based audio can then be sent to a channel-based audio decoder or a spatial audio decoder. The spatial audio decoder processes the metadata to recover at least some positional information that was lost during the down-mix operation by upmixing the channel-based audio content back to the spatial audio content for optimal playback in a spatial audio environment.

Abstract translation: 描述了使用基于频道的格式来渲染和回放空间音频内容的方法和系统的实施例。 通过基于传统的基于信道的设备回放的空间音频内容被转换成适当的基于频道的格式，导致音频对象内的某些位置信息的丢失和包括空间音频内容的位置元数据。 即使在将音频内容呈现为基于频道的音频之后，为了保留用于空间音频设备的该信息，由空间音频处理器生成的某些元数据被并入到基于频道的数据中。 然后可以将基于频道的音频发送到基于频道的音频解码器或空间音频解码器。 空间音频解码器处理元数据以恢复低混音操作期间丢失的至少一些位置信息，通过将基于频道的音频内容上回到空间音频内容以在空间音频环境中进行最佳重放。