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US 9,877,102 B2Granted
Transducer assembly with acoustic mass
AssigneeSonion Nederland B.V.
InventorsOnno Geschiere, Mike Geskus
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Abstract
A receiver assembly comprising a first and a second receiver housing and a spout. The second receiver housing is positioned over a first sound outlet port of the first receiver housing and the spout is positioned over a second outlet port of the second receiver housing. An acoustic duct is located between the first and second receiver housing acoustically connecting the first sound outlet port to the spout and is provided with an acoustic mass.
Claims6
A transducer assembly, comprising:
- a receiver housing that houses a receiver;
- an opening through the housing through which sound exits the transducer assembly;
- a spout acoustically connected directly to opening;
- a tube positioned at least partially into the spout, the tube acting as an acoustic impedance to low-pass filter the sound exiting the transducer assembly, wherein an inner diameter of the tube is between 0.1 mm and 0.7 mm and a length of the tube is between 0.5 mm and 5 mm to provide a corner frequency in a woofer or subwoofer range, wherein the sound exits the spout jointly through the tube and through the opening.
1 more element
Dependencies are inferred from the claim text.