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公开(公告)号：US20180006621A1
公开(公告)日：2018-01-04
申请号：US15595792
申请日：2017-05-15
申请人： Apple Inc.
IPC分类号： H03G3/30 , H04N21/81 , G10L19/008 , H04R27/02 , H04N21/439
CPC分类号： H03G3/3089 , G10L19/008 , H04N21/4396 , H04N21/8106 , H04R27/02 , H04R2227/003 , H04R2227/009
摘要： An audio encoding device and an audio decoding device are described herein. The audio encoding device may examine a set of audio channels/channel groups representing a piece of sound program content and produce a set of ducking values to associate with one of the channels/channel groups. During playback of the piece of sound program content, the ducking values may be applied to all other channels/channel groups. Application of these ducking values may cause (1) the reduction in dynamic range of ducked channels/channel groups and/or (2) movement of channels/channel groups in the sound field. This ducking may improve intelligibility of audio in the non-ducked channel/channel group. For instance, a narration channel/channel group may be more clearly heard by listeners through the use of selective ducking of other channels/channel groups during playback.
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公开(公告)号：US20160315722A1
公开(公告)日：2016-10-27
申请号：US14693815
申请日：2015-04-22
申请人： Apple Inc.
发明人： Tomlinson M. Holman
IPC分类号： H04H60/04 , G11B27/34 , G11B27/031 , H04N5/265 , G06F3/16
CPC分类号： H04H60/04 , G06F3/165 , G11B27/031 , G11B27/34
摘要： An audio distribution system is described that includes an audio mixing device and one or more audio playback devices. The audio mixing device may generate final audio mixes for distribution to one or more of the audio playback devices. The final audio mixes may be associated with a video stream (e.g., a movie or television show video stream). The final audio mixes may be composed of separate music and effects and dialogue stems. In some instances, the music and effects and dialogue stems may be separately controlled during playback by the audio playback devices to improve intelligibility of the dialogue stem to users. This separate control may include the adjustment of level or the application of dynamic range compression (DRC) to a combined music and effects stem independent of adjustment of a dialogue stem.
摘要翻译： 描述了包括音频混合设备和一个或多个音频回放设备的音频分发系统。 音频混合设备可以生成最终的音频混合以分发到一个或多个音频回放设备。 最终音频混合可以与视频流（例如，电影或电视节目视频流）相关联。 最终的音频组合可能由单独的音乐和效果以及对话句组成。 在某些情况下，可以通过音频播放设备回放期间单独控制音乐和效果和对话音，以提高对用户的对话的清晰度。 这种单独的控制可以包括调整动态范围压缩（DRC）的水平或应用到组合的音乐和效果词干，而与对话词干的调整无关。
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公开(公告)号：US20150280676A1
公开(公告)日：2015-10-01
申请号：US14613203
申请日：2015-02-03
申请人： Apple Inc.
IPC分类号： H03G3/30
CPC分类号： H03G3/3089 , G10L19/008 , H04N21/4396 , H04N21/8106 , H04R27/02 , H04R2227/003 , H04R2227/009
摘要： An audio encoding device and an audio decoding device are described herein. The audio encoding device may examine a set of audio channels/channel groups representing a piece of sound program content and produce a set of ducking values to associate with one of the channels/channel groups. During playback of the piece of sound program content, the ducking values may be applied to all other channels/channel groups. Application of these ducking values may cause (1) the reduction in dynamic range of ducked channels/channel groups and/or (2) movement of channels/channel groups in the sound field. This ducking may improve intelligibility of audio in the non-ducked channel/channel group. For instance, a narration channel/channel group may be more clearly heard by listeners through the use of selective ducking of other channels/channel groups during playback.
摘要翻译： 这里描述了音频编码装置和音频解码装置。 音频编码设备可以检查表示一段声音节目内容的一组音频频道/频道组，并产生一组与频道/频道组中的一个相关联的候选值。 在播放声音节目内容期间，可以将所有其他频道/频道组应用于所述其他频道。 这些躲避值的应用可能会导致（1）下行通道/通道组的动态范围的减小和/或（2）声场中通道/通道组的移动。 这种躲避可能会提高非庇护频道/频道组中音频的清晰度。 例如，听众可以通过在播放期间通过使用其他频道/频道组的选择性躲避来更清楚地听到旁白频道/频道组。
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公开(公告)号：US20200213735A1
公开(公告)日：2020-07-02
申请号：US16799440
申请日：2020-02-24
申请人： Apple Inc.
发明人： Afrooz Family , Anthony P. Bidmead , Erik L. Wang , Gary P. Geaves , Martin E. Johnson , Matthew I. Brown , Michael B. Howes , Sylvain J. Choisel , Tomlinson M. Holman
摘要： An audio system is described that includes one or more speaker arrays that emit sound corresponding to one or more pieces of sound program content into associated zones within a listening area. Using parameters of the audio system (e.g., locations of the speaker arrays and the audio sources), the zones, the users, the pieces of sound program content, and the listening area, one or more beam pattern attributes may be generated. The beam pattern attributes define a set of beams that are used to generate audio beams for channels of sound program content to be played in each zone. The beam pattern attributes may be updated as changes are detected within the listening environment. By adapting to these changing conditions, the audio system is capable of reproducing sound that accurately represents each piece of sound program content in various zones.
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公开(公告)号：US20190181822A1
公开(公告)日：2019-06-13
申请号：US16269866
申请日：2019-02-07
申请人： Apple Inc.
IPC分类号： H03G3/30 , H04N21/81 , H04R27/02 , H04N21/439 , G10L19/008
摘要： An audio encoding device and an audio decoding device are described herein. The audio encoding device may examine a set of audio channels/channel groups representing a piece of sound program content and produce a set of ducking values to associate with one of the channels/channel groups. During playback of the piece of sound program content, the ducking values may be applied to all other channels/channel groups. Application of these ducking values may cause (1) the reduction in dynamic range of ducked channels/channel groups and/or (2) movement of channels/channel groups in the sound field. This ducking may improve intelligibility of audio in the non-ducked channel/channel group. For instance, a narration channel/channel group may be more clearly heard by listeners through the use of selective ducking of other channels/channel groups during playback.
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公开(公告)号：US09654076B2
公开(公告)日：2017-05-16
申请号：US14613203
申请日：2015-02-03
申请人： Apple Inc.
IPC分类号： H03G3/30 , G10L19/008 , H04N21/439 , H04N21/81 , H04R27/02
CPC分类号： H03G3/3089 , G10L19/008 , H04N21/4396 , H04N21/8106 , H04R27/02 , H04R2227/003 , H04R2227/009
摘要： An audio encoding device and an audio decoding device are described herein. The audio encoding device may examine a set of audio channels/channel groups representing a piece of sound program content and produce a set of ducking values to associate with one of the channels/channel groups. During playback of the piece of sound program content, the ducking values may be applied to all other channels/channel groups. Application of these ducking values may cause (1) the reduction in dynamic range of ducked channels/channel groups and/or (2) movement of channels/channel groups in the sound field. This ducking may improve intelligibility of audio in the non-ducked channel/channel group. For instance, a narration channel/channel group may be more clearly heard by listeners through the use of selective ducking of other channels/channel groups during playback.
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公开(公告)号：US20170105084A1
公开(公告)日：2017-04-13
申请号：US15311828
申请日：2014-09-26
申请人： APPLE INC.
发明人： Tomlinson M. Holman
摘要： An audio system is described that receives a piece of sound program content for playback from a content distribution system. The piece of sound program content may include a multi-channel dialogue signal and a combined multi-channel music and effects signal. The audio system may determine a first set of directivity patterns for the multi-channel dialogue signal and a second set of directivity patterns for the combined multi-channel music and effects signal. The first set of directivity patterns associated with channels of the dialogue signal may have higher directivity indexes than the second set of directivity patterns associated with corresponding channels of the music and effects signal. By associating dialogue components with a higher directivity than music and effects components, the system increases the intelligibility of dialogue for a piece of sound program content while allowing music and effects to retain conventional directivity having a typical ratio of direct-to-reverberant sound energy.
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公开(公告)号：US10224894B2
公开(公告)日：2019-03-05
申请号：US15595792
申请日：2017-05-15
申请人： Apple Inc.
IPC分类号： H03G3/30 , G10L19/008 , H04N21/439 , H04N21/81 , H04R27/02
摘要： An audio encoding device and an audio decoding device are described herein. The audio encoding device may examine a set of audio channels/channel groups representing a piece of sound program content and produce a set of ducking values to associate with one of the channels/channel groups. During playback of the piece of sound program content, the ducking values may be applied to all other channels/channel groups. Application of these ducking values may cause (1) the reduction in dynamic range of ducked channels/channel groups and/or (2) movement of channels/channel groups in the sound field. This ducking may improve intelligibility of audio in the non-ducked channel/channel group. For instance, a narration channel/channel group may be more clearly heard by listeners through the use of selective ducking of other channels/channel groups during playback.
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公开(公告)号：US10091583B2
公开(公告)日：2018-10-02
申请号：US14771482
申请日：2014-03-06
申请人： Apple Inc.
发明人： Tomlinson M. Holman
摘要： A home audio system that includes an audio receiver and one or more loudspeaker arrays is described. The audio receiver measures the acoustic properties of the room in which the loudspeaker arrays reside and the audio characteristics of the sound program content to be played through the loudspeaker arrays. Based on these measurements, the audio receiver assigns a directivity ratio and potentially various beam patterns to one or more segments of the sound program content. The assigned directivity ratio is used by the receiver to play the segment of the sound program content through the loudspeaker arrays. Other embodiments are also described.
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公开(公告)号：US20170374465A1
公开(公告)日：2017-12-28
申请号：US15684790
申请日：2017-08-23
申请人： Apple Inc.
发明人： Afrooz Family , Anthony P. Bidmead , Erik L. Wang , Gary P. Geaves , Martin E. Johnson , Matthew I. Brown , Michael B. Howes , Sylvain J. Choisel , Tomlinson M. Holman
IPC分类号： H04R3/12 , H04S7/00 , G10L19/008
摘要： An audio system is described that includes one or more speaker arrays that emit sound corresponding to one or more pieces of sound program content into associated zones within a listening area. Using parameters of the audio system (e.g., locations of the speaker arrays and the audio sources), the zones, the users, the pieces of sound program content, and the listening area, one or more beam pattern attributes may be generated. The beam pattern attributes define a set of beams that are used to generate audio beams for channels of sound program content to be played in each zone. The beam pattern attributes may be updated as changes are detected within the listening environment. By adapting to these changing conditions, the audio system is capable of reproducing sound that accurately represents each piece of sound program content in various zones.
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