Electroacoustic waveguide transducing
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United States of America Patent
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-
Sep 16, 2008
Grant Date -
Jul 4, 2002
app pub date -
Jan 2, 2001
filing date -
Jan 2, 2001
priority date (Note) -
In Force
status (Latency Note)
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Abstract
An acoustic waveguide system, having source of acoustic radiation and a source of opposing acoustic radiation. An acoustic waveguide has an open end and an interior. A first acoustic driver having a first radiating surface and a second radiating surface is arranged and constructed so that the first radiating surface radiates sound waves into free air and the second radiating surface radiates sound waves into the acoustic waveguide so that sound waves are radiated at the open end. A source of opposing sound waves in the acoustic waveguide opposes a predetermined spectral component of the sound waves radiated into the acoustic waveguide to reduce the acoustic radiation of the predetermined spectral component from the acoustic waveguide.
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