Earphone call noise reduction method and earphone

An earphone and noise reduction technology, which is applied in earphones to reduce environmental noise, earpiece/earphone accessories, transducer circuits, etc., can solve problems such as high computing resources and memory usage, performance degradation, and high cost
CN110856072AActive Publication Date: 2020-02-28北京声加科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
北京声加科技有限公司
Publication Date
2020-02-28

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Abstract

The invention provides an earphone call noise reduction method and an earphone. In one embodiment, the method comprises the steps of receiving a plurality of first speech signals outside a human ear by at least one external microphone; receiving a second voice signal in the human ear through an inner ear microphone; converting the plurality of first voice signals and the second voice signal into afrequency domain; performing beam forming on the plurality of first voice signals to obtain a third voice signal; performing echo cancellation processing and spectrum continuation processing on the second voice signal to obtain a fourth voice signal; and calculating the signal-to-noise ratio of each frequency point in the third voice signal, performing weighting processing on the third voice signal and the fourth voice signal through the signal-to-noise ratio to obtain a fifth voice signal, and converting the fifth voice signal into a time domain and outputting the fifth voice signal. Under the complex acoustic scenes of low signal-to-noise ratio, more speaker interference and the like, the voice of a wearer can be effectively picked up, and other noises can be suppressed.
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Description

Technical field

[0001] The invention relates to the technical field of voice noise reduction, in particular to an earphone call noise reduction method and earphones. Background technique

[0002] With the development of the Internet and artificial intelligence technology, headphones have been given a variety of functions, including listening to music, voice calls, and voice assistants. In practical applications, a variety of noises will be picked up by earphone microphones, including relatively stable environmental noises such as subway noise and road noise, as well as non-stationary noise generated by other speakers, shopping malls, and high-speed rail stations nearby. These noises will not only make the wearer feel uncomfortable, but also affect the quality of the call and the performance of human-machine voice interaction. Therefore, more and more headsets have added functions such as call noise reduction and active noise reduction.

[0003] Call noise reduction technology oft...

Claims

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