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Metadata for ducking control

A technology of avoidance value and channel group, applied in the direction of gain control, amplification control, electrical components, etc., can solve the problems affecting the overall intelligibility of the channel, the mutual interference of the main dialogue channel, etc.

Inactive Publication Date: 2016-09-14
APPLE INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] While narration may allow visually impaired users to better understand the visual actions and activities taking place in the video, playing the narration channel directly over other audio channels may affect the overall intelligibility of those channels
For example, the main dialogue channel may interfere with the narration channel when playing two of these channels at the same time

Method used

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  • Metadata for ducking control
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Examples

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Embodiment Construction

[0018] Several embodiments are described with reference to the accompanying figures. Although numerous details are set forth, it is understood that some embodiments of the invention may be practiced without these details. In other instances, well-known circuits, structures and techniques have not been shown in detail in order not to obscure the understanding of this description.

[0019] figure 1 An audio system 100 is shown according to one embodiment. The audio system 100 may include an audio encoding device 101 and a set of audio decoding devices 103 1 -103 N . Audio encoding device 101 and audio decoding device 103 1 -103 N Can be communicatively coupled through a distribution network 105 . Specifically, the audio encoding device 101 can encode one or more pieces of sound program content and send the content to one or more audio decoding devices 103 through the distributed network 105 1 -103 N Transfer encoded data.

[0020] In one embodiment, audio encoding devi...

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PUM

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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.

Description

[0001] Related questions [0002] This patent application claims the benefit of the earlier filing date of US Provisional Patent Application 61 / 970,284, filed March 25, 2014. technical field [0003] The present invention describes systems and methods for adding ducking values ​​to audio assets used to represent a piece of sound program content. The avoidance value may be associated with a particular channel / channel group and may be used to avoid every other channel / channel group in the piece of sound programming content other than the associated channel / channel group. Other embodiments are also described. Background technique [0004] The audio channel can be selectively toggled back and forth between "on" and "off" by the listener. For example, a movie or television show may include narration channels that may be selected by the user. The narration channel may provide audio descriptions of the visual actions and activities that occur within the corresponding video. The...

Claims

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Application Information

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IPC IPC(8): G10L19/008
CPCG10L19/008H04N21/4396H04N21/8106H04R27/02H04R2227/003H04R2227/009H03G3/3089
Inventor T·M·霍曼F·M·鲍姆加特E·A·阿兰曼奇
Owner APPLE INC
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