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Method and apparatus for bass management

An audio processing and audio technology, applied in stereo systems, electrical components, etc., to solve the problem that the main speaker does not support sufficient, effective or uniform low-frequency sound production.

Active Publication Date: 2021-10-08
DOLBY LAB LICENSING CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The design or location of the main speakers may not support adequate, effective, or even low-frequency sound production

Method used

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  • Method and apparatus for bass management
  • Method and apparatus for bass management
  • Method and apparatus for bass management

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Embodiment Construction

[0033] The following description is directed to examples used to describe certain implementations of some of the innovative aspects of the disclosure, as well as the context in which these innovative aspects may be practiced. However, the teachings herein can be applied in a variety of different ways. Furthermore, the described embodiments may be implemented in various hardware, software, firmware, etc. For example, aspects of the present application may be embodied at least in part in an apparatus, a system comprising more than one apparatus, a method, a computer program product, or the like. Accordingly, aspects of the present application may take the form of hardware embodiments, software embodiments (including firmware, resident software, microcode, etc.) and / or embodiments combining software and hardware aspects. Such embodiments may be referred to herein as "circuits," "modules," or "engines." Some aspects of the present application may take the form of a computer prog...

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Abstract

Some disclosed methods involve multi-band bass management. Some such examples may involve applying multiple high-pass and low-pass filtering frequencies for bass management purposes. Some disclosed methods treat at least some low frequency signals as audio objects that can be panned. Some disclosed methods involve translating low and high frequencies separately. After high-pass rendering, a power audit can determine the low-frequency deficit factor to be reproduced by a subwoofer or other low-frequency-capable speaker.

Description

[0001] Cross References to Related Applications [0002] This application claims the benefit of priority to U.S. Provisional Patent Application No. 62 / 746,468, filed October 16, 2018, which is hereby incorporated by reference in its entirety. technical field [0003] The present disclosure relates to the processing and reproduction of audio data. In particular, the present disclosure relates to bass management for audio data. Background technique [0004] Bass management is a method used in audio systems to efficiently reproduce the lowest frequencies in an audio program. The design or location of the main speakers may not support adequate, effective, or even low-frequency sound production. In this case, the wideband signal can be split into two or more frequency bands, with the low frequencies directed at speakers capable of reproducing low frequency audio without excessive distortion. Contents of the invention [0005] Various audio processing methods are disclosed h...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04S7/00
CPCH04S7/30H04S7/302H04S3/008H04S7/308H04S2400/11H04S2420/03H04S7/307
Inventor C·Q·鲁滨逊M·R·P·托马斯M·J·史密瑟斯
Owner DOLBY LAB LICENSING CORP