公开(公告)号：AU2015236755B2

公开(公告)日：2017-08-31

申请号：AU2015236755

申请日：2015-02-26

Applicant: APPLE INC

Inventor： HOLMAN TOMLINSON M ,  BAUMGARTE FRANK M ,  ALLAMANCHE ERIC A

IPC: G10L19/008

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.

公开(公告)号：AU2019201701A1

公开(公告)日：2019-04-04

申请号：AU2019201701

申请日：2019-03-13

Applicant: APPLE INC

Inventor： HOLMAN TOMLINSON M ,  BAUMGARTE FRANK M ,  ALLAMANCHE ERIC A

IPC: G10L19/008

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.

公开(公告)号：AU2019201701C1

公开(公告)日：2021-02-25

申请号：AU2019201701

申请日：2019-03-13

Applicant: APPLE INC

Inventor： HOLMAN TOMLINSON M ,  BAUMGARTE FRANK M ,  ALLAMANCHE ERIC A

IPC: G10L19/008

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.

公开(公告)号：AU2014241174B2

公开(公告)日：2017-05-11

申请号：AU2014241174

申请日：2014-03-27

Applicant: APPLE INC

Inventor： BAUMGARTE FRANK M

IPC: G10L19/16 ,  G10L19/008

Abstract: A system for encoding and applying Dynamic Range Control/Compression (DRC) gain values to a piece of sound program content is described. In particular, a set of DRC gain values representing a DRC gain curve for the piece of content may be divided into frames corresponding to frames of the piece of content. A set of fields may be included with an audio signal representing the piece of content. The additional fields may represent the DRC gain values using linear or spline interpolation. The additional fields may include 1) an initial gain value for each DRC frame, 2) a set of slope values at particular points in the DRC curve, 3) a set of time delta values for each consecutive pair of slope values, and/or 4) one or more gain delta values representing changes of DRC gain values in the DRC gain curve between points of the slope values.

公开(公告)号：AU2015236755A1

公开(公告)日：2016-07-07

申请号：AU2015236755

申请日：2015-02-26

Applicant: APPLE INC

Inventor： HOLMAN TOMLINSON M ,  BAUMGARTE FRANK M ,  ALLAMANCHE ERIC A

IPC: G10L19/008

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.

公开(公告)号：HK1257290A1

公开(公告)日：2019-10-18

申请号：HK18116436

申请日：2018-12-21

Applicant: APPLE INC

Inventor： BAUMGARTE FRANK M

IPC: G10L20060101 ,  H03G20060101

公开(公告)号：AU2017268582A1

公开(公告)日：2017-12-21

申请号：AU2017268582

申请日：2017-11-29

Applicant: APPLE INC

Inventor： HOLMAN TOMLINSON M ,  BAUMGARTE FRANK M ,  ALLAMANCHE ERIC A

IPC: G10L19/008

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.

公开(公告)号：AU2019201701B2

公开(公告)日：2020-09-03

申请号：AU2019201701

申请日：2019-03-13

Applicant: APPLE INC

Inventor： HOLMAN TOMLINSON M ,  BAUMGARTE FRANK M ,  ALLAMANCHE ERIC A

IPC: G10L19/008

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.

公开(公告)号：AU2017268582B2

公开(公告)日：2019-03-07

申请号：AU2017268582

申请日：2017-11-29

Applicant: APPLE INC

Inventor： HOLMAN TOMLINSON M ,  BAUMGARTE FRANK M ,  ALLAMANCHE ERIC A

IPC: G10L19/008

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.

公开(公告)号：ES2687044T3

公开(公告)日：2018-10-23

申请号：ES14723227

申请日：2014-03-27

Applicant: APPLE INC

Inventor： BAUMGARTE FRANK M

IPC: G10L19/16 ,  G10L19/008 ,  H03G7/00

Abstract: Un procedimiento de codificación de valores de ganancia de control de rango dinámico, DRC, en un flujo de bits que representa una parte del contenido del programa de sonido, que comprende: agrupar cada canal de audio del contenido del programa de sonido en un solo grupo de DRC de un conjunto de grupos de DRC; e insertar metadatos de ganancia de DRC en el flujo de bits para cada grupo de DRC, en el que los metadatos de ganancia de DRC para cada grupo de DRC se usan para aplicar los valores de ganancia de DRC correspondientes a cada trama en el grupo de DRC.