Active and Passive Virtual Height Filter Systems for Upward Launch Drivers

Abstract

Embodiments are directed to a virtual height filter for use with or in an upward-firing speaker system that reflects sound off a ceiling to a listening location at a distance from a speaker, and that provides height cues to reproduce audio objects that have overhead audio components. A virtual height filter based on a directional hearing model is applied to the upward-firing driver signal to improve the perception of height for audio signals transmitted by the virtual height speaker to provide optimum reproduction of the overhead reflected sound. The virtual height filter is provided by any one or combination of analog or digital filter circuits, or mechanical structures including speaker grill, enclosure, or driver design or configuration.

Description

[0001] Cross References to Related Applications [0002] This application claims priority to U.S. Provisional Patent Application No. 62 / 007,354, filed June 3, 2014, and U.S. Provisional Patent Application No. 62 / 163,502, filed May 19, 2015, each of which is hereby Incorporated by reference thereto in its entirety. technical field [0003] One or more implementations relate generally to audio speakers, and more to up-firing speakers and active height filter circuits and passive speaker bracket configurations for providing virtual height filtering for up-firing speakers generating reflected signals. Background technique [0004] The advent of digital cinema has created new standards for cinema sound, such as the incorporation of multiple audio channels to allow greater creativity for content creators and a more enveloping and lifelike listening experience for listeners. As a means for distributing spatial audio content and rendering it in different playback configurations, mo...

AI Technical Summary

Problems solved by technology

Depending on the filter and speaker design, these parts can cost more than the amplifier driver itself

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