Systems and methods for suppressing sound leakage
AssigneeShenzhen Shokz Co., Ltd.
InventorsXin QI, Fengyun LIAO
Life of this patent
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Abstract
A speaker comprises a housing, a transducer residing inside the housing, and at least one sound guiding hole located on the housing. The transducer generates vibrations. The vibrations produce a sound wave inside the housing and cause a leaked sound wave spreading outside the housing from a portion of the housing. The at least one sound guiding hole guides the sound wave inside the housing through the at least one sound guiding hole to an outside of the housing. The guided sound wave interferes with the leaked sound wave in a target region. The interference at a specific frequency relates to a distance between the at least one sound guiding hole and the portion of the housing.
Claims20
A speaker, comprising:
- a housing;
- a transducer residing inside the housing and configured to generate vibrations, the vibrations producing a sound wave inside the housing;
- and
- at least two sound guiding holes located on the housing and configured to guide the sound wave inside the housing to an outside of the housing, wherein the guided sound waves having different phases to interfere with each other to reduce a sound pressure level of a leaked sound wave, the interference reduces the sound pressure level of the leaked sound wave by a first sound pressure level at a first frequency, and reduces the sound pressure level of the leaked sound wave by a second sound pressure level at a second frequency, wherein
- the first frequency is lower than the second frequency and the first sound pressure level is larger than the second sound pressure level.
A method, comprising:
- providing a speaker including:
- a housing;
- a transducer residing inside the housing and configured to generate vibrations, the vibrations producing a sound wave inside the housing;
- and
- at least two sound guiding holes located on the housing and configured to guide the sound wave inside the housing to an outside of the housing, wherein the guided sound waves having different phases to interfere with each other to reduce a sound pressure level of a leaked sound wave, the interference reduces the sound pressure level of the leaked sound wave by a first sound pressure level at a first frequency, and reduces the sound pressure level of the leaked sound wave by a second sound pressure level at a second frequency, wherein
- the first frequency is lower than the second frequency and the first sound pressure level is larger than the second sound pressure level.
Dependencies are inferred from the claim text.