Signal processing method and system

Abstract

The invention discloses a signal processing method and system, and belongs to the technical field of photoelectric communication. Comprising a laser vibration measurement assembly, a microphone assembly, a pointing assembly and a signal processing assembly. The emitting direction of laser in the laser vibration measurement assembly is controlled through the pointing assembly, and the directivity of audio pickup is ensured; the laser vibration measurement assembly is used for obtaining high-signal-to-noise-ratio audio frequency at a sound source, the microphone assembly is used for obtaining high-fidelity audio frequency, the signal processing assembly is used for fusing the high-signal-to-noise-ratio audio frequency obtained by the laser vibration measurement assembly and the high-fidelity audio frequency obtained by the microphone assembly, and finally the high-directivity high-signal-to-noise-ratio and high-fidelity audio frequency is obtained.

Description

technical field [0001] The invention relates to the technical field of photoelectric communication, in particular to a signal processing method and system. Background technique [0002] As an important information carrier, voice is widely used in life and production. With the advancement of technology, the means of obtaining audio are also changing with each passing day. At present, the most mainstream audio acquisition methods are the acquisition of microphone technology and laser vibration measurement technology. Among them, the audio fidelity obtained by microphone technology is high, but the directivity of the microphone is poor, and it is easily interfered by the surrounding noise; the microphone array is composed of certain Composed of a large number of microphones, the spatiotemporal information of the audio signal can be obtained, and it has a strong spatial resolution. However, when the noise source exists in the propagation path of the sound, it will also be interf...

AI Technical Summary

Problems solved by technology

[0006] In view of the above problems, a signal processing method and system are provided, which solve the technical problem of poor directivity of existing microphone technology through pointing components, and achieve good technical effects of directivity; obtain high-fidelity, low-signal-to-noise frequencies through microphone components, and use laser measurement The vibration component obtains high signal-to-noise and low-fidelity audio, and the obtained audio is aligned and fused through the signal processing component, so as to obtain the technical effect of high signal-to-noise ratio and high-fidelity audio

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