Long-distance sound amplification method, device and system, storage medium and intelligent equipment

Abstract

The invention discloses a long-distance sound amplification method, device and system, a storage medium and intelligent equipment. The method comprises the steps: acquiring first sound information through first sound pickup equipment, and acquiring second sound information through second sound pickup equipment; filtering and amplifying the first sound information to obtain a first sound amplification signal, and performing differential amplification processing on the first sound information and the second sound information to obtain a first differential amplification sound signal; carrying outadjustable gain amplification processing on the first differential amplification sound signal; performing differential amplification processing on the first differential amplification sound signal after the adjustable gain amplification and the first sound amplification signal to obtain a second differential amplification sound signal; and performing volume control and power amplification on thesecond differential amplification sound signal to obtain an output sound signal. According to the invention, when remote opposite sound is monitored, the sound cannot be covered by the near sound, sothat the problem that the monitoring difficulty is relatively high when a remote sound signal is monitored is solved.

Description

technical field [0001] The present invention relates to the technical field of signal processing, in particular to a long-distance sound amplification method, device, system, storage medium and intelligent equipment. Background technique [0002] In some application scenarios in the fields of safety production, anti-terrorism, and reconnaissance, it is necessary to monitor the sound of a specific area in the distance (for example, 100 meters away), but it is easily covered by loud sounds in the near field (sound masking effect). In addition, due to the high gain of the sound monitoring equipment, self-excited howling is easy to occur when the signal of certain frequencies generates positive feedback. Therefore, in the prior art, when monitoring the far-end audio signal, there is a problem that monitoring is relatively difficult. Contents of the invention [0003] The main purpose of the present invention is to provide a long-distance sound amplification method, device, sy...

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Problems solved by technology

[0003] The main purpose of the present invention is to provide a long-distance sound amplification method, device, system, storage medium and intelligent equipment, which can solve the problem that the monitoring of remote sound signals is difficult

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