Bass management for audio rendering

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...

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

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