公开(公告)号：EP3074973B1

公开(公告)日：2019-07-31

申请号：EP15710649.3

申请日：2015-02-26

Applicant: Apple Inc.

Inventor： HOLMAN, Tomlinson M. ,  BAUMGARTE, Frank M. ,  ALLAMANCHE, Eric A.

IPC: G10L19/008 ,  H03G3/30 ,  H04N21/439 ,  H04N21/81 ,  H04R27/02

公开(公告)号：EP3074973A1

公开(公告)日：2016-10-05

申请号：EP15710649.3

申请日：2015-02-26

Applicant: Apple Inc.

Inventor： HOLMAN, Tomlinson M. ,  BAUMGARTE, Frank M. ,  ALLAMANCHE, Eric A.

IPC: G10L19/008

CPC classification number: H03G3/3089 ,  G10L19/008 ,  H04N21/4396 ,  H04N21/8106 ,  H04R27/02 ,  H04R2227/003 ,  H04R2227/009

Abstract: 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.

Abstract translation: 本文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）低通道/通道组的动态范围减小和/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，通过在播放期间通过使用其他频道/频道组的选择性躲避，听众可以更清楚地听到旁白频道/频道组。