Acoustic output devices with reduced sound leakage
AssigneeShenzhen Shokz Co., Ltd.
InventorsZhen Wang, Lei Zhang
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Abstract
The embodiments of the present disclosure provide an acoustic output device including a sound emitting part. The sound emitting part may include at least one acoustic driver, and a first chamber, and a second chamber acoustically coupled to the at least one acoustic driver. The first chamber may have at least one first sound outlet, and the second chamber has at least one second sound outlet. The at least one acoustic driver may radiate sounds to an external environment through the at least one first sound outlet and the at least one second sound outlet. In at least a portion of a low-frequency range, the sounds emitted by the sound emitting part towards a far field may exhibit directivity.
Claims18
An acoustic output device, comprising:
- a sound emitting part including:
- at least one acoustic driver;
- a first chamber and a second chamber acoustically coupled to the at least one acoustic driver, the first chamber having at least one first sound outlet and the second chamber having at least one second sound outlet, and the at least one acoustic driver radiating a first sound to the outside through the at least one first sound outlet and a second sound to the outside through the at least one second sound outlet sounds to the outside through the at least one first sound outlet and the at least one second sound outlet, wherein in at least a portion of a low-frequency range, the sounds emitted by the sound emitting part towards a far field exhibit directivity, the directivity is characterized by the sounds radiated from the at least one first sound outlet and the at least one second sound outlet having a sound pressure difference of at least 3 dB in at least one pair of opposite directions, wherein a phase difference between the first sound and the second sound is in a range of 140° to 155°.
An acoustic output device comprising:
- a sound emitting part including:
- at least one acoustic driver;
- a first chamber and a second chamber acoustically coupled to the at least one acoustic driver, the first chamber having at least one first sound outlet and the second chamber having at least one second sound outlet, wherein the at least one acoustic driver radiates a first sound to the outside through the first chamber and at least one first sound outlet, and radiates a second sound to the outside through the second chamber and at least one second sound outlet, at 1000 Hz, a phase difference between the first sound and the second sound is in a range of 140° to 155°.
Dependencies are inferred from the claim text.