Audio speaker and method of producing an audio speaker
AssigneeKing Abdullah University of Science and Technology
InventorsJiajun Zhao, Ying Wu
Life of this patent
Estimating the term…
Abstract
A speaker includes a speaker enclosure. The speaker enclosure includes an inner region arranged in a center of the speaker enclosure and an outer region, which surrounds the inner region and includes a plurality of channels connecting the inner region to an environment in which the speaker enclosure is arranged. The speaker also includes a sound transducer arranged in the inner region in the center of the speaker enclosure. Sound produced by the sound transducer radiates through the plurality of channels into the environment. A length of each of the plurality of channels is greater than a length from the center of the speaker enclosure to the environment.
Claims20
A speaker, comprising:
- a speaker enclosure, comprising
- an inner region arranged in a center of the speaker enclosure;
- an outer region, which surrounds the inner region and includes a plurality of channels connecting the inner region to an environment in which the speaker enclosure is arranged;
- and
- a sound transducer arranged in the inner region in the center of the speaker enclosure,
- wherein sound produced by the sound transducer radiates through the plurality of channels into the environment,
- wherein a length of each of the plurality of channels is greater than a length from the center of the speaker enclosure to the environment, and
- wherein the plurality of channels fully encloses the inner region in a transversal plane and communicates the inner region with the environment so that an azimuthal density ρ0 of the speaker enclosure is infinite and a radial sound speed cr of the speaker enclosure is constant and smaller than a speed of sound in air.
A method of producing a speaker, the method comprising:
- providing a speaker enclosure, which comprises
- an inner region arranged in a center of the speaker enclosure;
- an outer region, which surrounds the inner region and includes a plurality of channels connecting the inner region to an environment in which the speaker enclosure is arranged;
- and
- arranging a sound transducer in the inner region in the center of the speaker enclosure,
- wherein sound produced by the sound transducer radiates through the plurality of channels into the environment,
- wherein a length of each of the plurality of channels is greater than a length from the center of the speaker enclosure to the environment, and
- wherein the plurality of channels fully encloses the inner region in a transversal plane and communicates the inner region with the environment so that an azimuthal density ρ0 of the speaker enclosure is infinite and a radial sound speed cr of the speaker enclosure is constant and smaller than a speed of sound in air.
An omnidirectional speaker, comprising:
- an annular speaker enclosure, comprising
- an inner region arranged in a center of the annular speaker enclosure;
- an outer region, which surrounds the inner region and includes a plurality of channels connecting the inner region to an environment in which the annular speaker enclosure is arranged;
- and
- a sound transducer arranged in the inner region in the center of the annular speaker enclosure,
- wherein sound produced by the sound transducer radiates through the plurality of channels into the environment,
- wherein a length of each of the plurality of channels is greater than a radius of the annular speaker enclosure, and
- wherein the plurality of channels fully encloses the inner region in a transversal plane and communicates the inner region with the environment so that an azimuthal density ρ0 of the speaker enclosure is infinite and a radial sound speed cr of the speaker enclosure is constant and smaller than a speed of sound in air.
Dependencies are inferred from the claim text.