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Time and space control system and method of panel vibration and virtual source generation method

A technology of time control and panel, applied in the field of one or more modal forces including the use of frequency domain plate bending, can solve the problem of reducing audio quality, achieve long ringing time, improve audio quality, and avoid transient distortion Effect

Active Publication Date: 2020-10-02
UNIVERSITY OF ROCHESTER
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  • Summary
  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

In the absence of careful mechanical design measures, the presence of underdamped bending modes in panel speakers can degrade audio quality

Method used

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  • Time and space control system and method of panel vibration and virtual source generation method
  • Time and space control system and method of panel vibration and virtual source generation method
  • Time and space control system and method of panel vibration and virtual source generation method

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Embodiment Construction

[0047] Before the present methods and systems are disclosed and described, it is to be understood that the methods and systems are not limited to specific synthetic methods, specific components, or specific compositions. It is also to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not restrictive.

[0048] As used in the specification and the appended claims, the singular forms "a," "an," and "the" include plural referents unless the context clearly dictates otherwise. Ranges can be expressed herein as from "about" one particular value, and / or to "about" another particular value. When such a range is expressed, another embodiment includes from the one particular value and / or to the other particular value. Similarly, by use of the antecedent "about," values ​​are expressed as approximations, it being understood that the particular value forms another embodiment. It will be further understood that each endpoin...

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Abstract

A loudspeaker system consisting of a flexible panel with a fixed array of force actuators, a signal processing system, and an interface circuit is described. The described system is capable of creating a pattern of bending standing waves at any location on the panel, and the instantaneous amplitude, velocity or acceleration of the standing waves can be controlled by an audio signal to create a local bending wave at a selected location in the plane of the panel Sound source.

Description

[0001] Cross References to Related Applications [0002] This application claims priority to and benefit of U.S. Provisional Application 62 / 259,702, filed November 25, 2016, entitled "SYSTEMS AND METHODS FOR AUDIOSCENE GENERATION BY EFFECTING SPATIAL AND TEMPORAL CONTROL OF THE VIBRATIONSOF A PANEL," which is incorporated by reference in its entirety Incorporated into this article. Background technique [0003] Loudspeakers that reproduce sound using the bending-mode vibration of a diaphragm or plate were first proposed at least 90 years ago. The design concept resurfaced in the 1960s when it was commercialized as the "Natural Sound Loudspeaker," a trapezoid-shaped, resin-styrofoam composite diaphragm driven at a central point by a dynamic force transducer structure. In the description of the device, the inventors identify the "multi-resonant" nature of the diaphragm and emphasize that the presence of higher order modes increases the efficiency of sound production. Natural ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04R7/04H04S7/00
CPCH04R7/045H04R2440/01H04R2440/05H04R2440/07H04R1/2811H04R3/00H04R5/04H04R2499/15H04S7/30
Inventor 马克·F·博科
Owner UNIVERSITY OF ROCHESTER
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