Loudspeaker enclosure incorporating a leak to compensate for the effect of acoustic modes on loudspeaker frequency response
AssigneeMitel Networks Corporation
InventorsStephane Dedieu, Philippe Moquin
Life of this patent
Estimating the term…
Abstract
An improvement is provided in loudspeaker enclosures characterised by a frequency response having at least one null due to a cavity mode. The improvement comprises introducing an aperture at a high pressure region of said enclosure for provided a pressure leak thereby substantially eliminating said at least one null.
Claims6
In a loudspeaker enclosure operating in an external pressure field and characterized by a frequency response having at least one null due to a cavity mode in the enclosure, the improvement comprising an aperture in a vicinity of a high pressure region of said enclosure for providing a pressure leak, the aperture communicating an internal pressure field of the enclosure with the external pressure field, the aperture being in phase with the external pressure field for providing a pressure leak to substantially eliminate said at least one null.
A loudspeaker for operation in an external pressure field, comprising:
- an enclosure of predetermined volume and geometry giving rise to at least one null due to a cavity mode there in;
- a loudspeaker optimized for use in said enclosure;
- and
- an aperture positioned adjacent a high pressure region of said enclosure for providing a pressure leak, the aperture communicating an internal pressure field of the enclosure with the external pressure field, the aperture being in phase with the external pressure field, for providing a pressure leak to substantially eliminate said at least one null.
Dependencies are inferred from the claim text.