Loudspeaker system
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United States of America Patent
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-
Dec 26, 1995
Grant Date -
N/A
app pub date -
Sep 17, 1993
filing date -
Sep 23, 1992
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An enclosure (35) of a loudspeaker (37) is provided with a plurality of tubes (43) of different length via which the sound is emitted in order to achieve frequency spreading of resonance peaks in the SPL (sound pressure level) curve. The side walls (46, 47) of the tubes (43) have openings (63) via which the tubes are coupled to common Helmholtz resonators (59, 61) in order to suppress undesirable resonances in the tubes (43). By spreading the resonance peaks it is possible to use Helmholtz resonators of smaller dimensions than in the case that the sound would emanate via a single tube. This results in a loudspeaker system (33) with more compact and cheaper Helmholtz resonators (59, 61).
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Cited Art Landscape
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