Bass management for audio rendering

A bass management, audio technology, applied in frequency response correction, quasi-stereo system, electrical components, etc., can solve complex problems

Active Publication Date: 2016-02-17
DOLBY LAB LICENSING CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Both theater audio reproduction systems and home theater audio reproduction systems are becoming more versatile and complex

Method used

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  • Bass management for audio rendering
  • Bass management for audio rendering
  • Bass management for audio rendering

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Embodiment Construction

[0058] The following description is directed to certain implementations for the purpose of describing some innovative aspects of the disclosure and contextual examples in which these innovative aspects can be implemented. However, the teachings herein can be applied in a variety of different ways. For example, while various implementations have been described in terms of a particular playback environment, the teachings herein are broadly applicable to other known playback environments as well as playback environments that may be introduced in the future. Furthermore, described implementations can be implemented at least in part in various devices and systems such as hardware, software, firmware, cloud-based systems, and the like. Accordingly, the teachings of the present disclosure are not intended to be limited to the implementations shown in the figures and / or described herein, but have broad applicability.

[0059] figure 1 An example of a playback environment with a Dolb...

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Abstract

Improved methods and devices for processing low-frequency audio data are provided. A bass extraction process may involve applying low-pass filters to received audio object signals, to produce extracted low-frequency audio signals. The bass extraction process may be performed prior to a process of rendering audio objects into speaker feed signals. A bass management process may involve routing the extracted low-frequency audio signals to the one or more speakers capable of reproducing low-frequency audio signals.

Description

[0001] Cross References to Related Applications [0002] This application claims priority to US Provisional Patent Application No. 61 / 836,519, filed June 18, 2013, which is hereby incorporated by reference in its entirety. technical field [0003] This disclosure relates to processing audio data. In particular, the present disclosure relates to processing low frequency audio data for sound reproduction systems. Background technique [0004] Since the introduction of sound films in 1927, the techniques for capturing the artistic intent of a film soundtrack and reproducing that content have evolved steadily. In the 1970s, Dolby proposed a cost-effective means of encoding and distributing mixes with 3 screen channels and a mono surround channel. During the 1990s, Dolby introduced digital sound into theaters using the 5.1-channel format, which provided separate left, center, and right screen channels, a left surround array, and a right surround array and a subwoofer channel f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04S7/00H04S5/00H04R3/12
CPCH04R3/12H04S5/00H04S7/30H04S2400/07H04R3/14H04S3/008H04S2400/11H03G11/008H04R3/04H04S7/308H04S2400/03
Inventor 大卫·马修·菲舍尔蒂莫西·詹姆斯·埃格丁尤金·爱德华·拉齐科亚当·克里斯托弗·诺埃尔大卫·S·麦格拉思
Owner DOLBY LAB LICENSING CORP
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