Voice processing method and device of bone conduction equipment and medium

Abstract

The invention discloses a voice processing method and device of bone conduction equipment and a medium. The method comprises the following steps: acquiring a first test voice signal and a second testvoice signal through a bone conduction microphone and an air conduction microphone in a same voice test environment, determining a corresponding target transfer function, acquiring an initial voice signal, and synthesizing the initial voice signal into a target voice signal according to the target transfer function. By applying the technical scheme, full-band voice signal acquisition can be realized by using only one bone conduction microphone, and high-frequency attenuation compensation does not need to be carried out by adding a microphone, so that the hardware cost is reduced, the internalspace occupation of bone conduction equipment is reduced, and the miniaturization of a product is facilitated. Furthermore, in the synthesis process, only the target transfer function is used, so thatthe function can be conveniently written into the algorithm logic of the bone conduction equipment, and the universality and the portability are good. And finally, the low-frequency part still keepsthe advantages of private call and noise reduction.

Description

technical field [0001] The present application relates to the technical field of bone conduction, in particular to a voice processing method, device and medium of a bone conduction device. Background technique [0002] The principle of the traditional air conduction microphone is to collect the sound wave signal through the air as the propagation medium, and convert the sound wave signal into an electrical signal. Since the air conduction microphone needs to rely on the air as the transmission medium, the noise in the air is likely to be used as an effective sound wave signal together to generate noise pollution, resulting in poor listening effect of the receiver. On this basis, with the development of bone conduction technology, more and more bone conduction devices appear, for example, bone conduction earphones, which include bone conduction microphones. Among them, the bone conduction microphone is used to receive speech, and it has the same function as the traditional a...

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Problems solved by technology

[0003] However, in the sound pickup process of the bone conduction microphone, its sound pickup cut-off frequency is 2KHz, so when it is used as a voice collection device alone, there will be attenuation in the high frequency part.

In the prior art, in order to overcome this problem, it is usually used in conjunction with the traditional air conduction microphone, resulting in the need for two voice acquisition devices in the device, which not only brings about the problem of increased cost, but also brings about a large footprint. problem, which is not conducive to the miniaturization of products

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