Active noise reduction method and device of earphone and half-in-ear active noise reduction earphone

Abstract

The invention provides an active noise reduction method and device of an earphone and a half-in-ear active noise reduction earphone. The active noise reduction method of the earphone comprises the steps that a first sound signal vector collected by a microphone array arranged on the earphone is acquired; the microphone array comprises at least one reference microphone used for collecting environment noise signals and at least one error microphone used for collecting in-ear noise signals. The method includes steps of: determining a current noise reduction parameter according to the first sound signal vector; and determining a noise reduction signal according to the current noise reduction parameter and the environmental noise signal. According to the technical scheme provided by the embodiment of the invention, the noise reduction effect of the earphone can be improved, and the earphone has excellent wearing experience and noise reduction performance.

Description

technical field [0001] The invention relates to the technical field of active noise reduction, in particular to an earphone active noise reduction method and device, and a semi-in-ear active noise reduction earphone. Background technique [0002] In recent years, the market for headphones with active noise cancellation has continued to grow, such as circumaural headphones, in-ear headphones. Among the in-ear earphones, the semi-in-ear earphones, which are more special, are quite popular among certain users because of their advantages such as comfortable wearing, cleanliness, no foreign body sensation, and no stethoscope effect. [0003] However, the poor sealing between the semi-in-ear headphones and the human ear canal leads to acoustic leakage, and it is almost impossible to implement passive noise reduction; if the same active noise reduction scheme as the general in-ear headphones is adopted, the active noise reduction effect of the semi-in-ear headphones will poor. C...

AI Technical Summary

Problems solved by technology

[0003] However, the poor sealing between the semi-in-ear headphones and the human ear canal leads to acoustic leakage, and it is almost impossible to implement passive noise reduction; if the same active noise reduction scheme as the general in-ear headphones is adopted, the active noise reduction effect of the semi-in-ear headphones will poor

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