Method for reproducing stereophonic sound by stage site sound amplifier

Abstract

The invention discloses a method for reproducing stage stereophonic sound (see the appended drawing). Radio wave transceivers (3) and (4) are respectively arranged at the left corner and the right corner of a stage; a wireless microphone (2) capable of measuring a distance is used during stage performance; as a radio distance measuring technology is utilized, the distances between (2) and (3) and between (2) and (4) are measured in real time, and a specific value of the two distances is calculated out. The specific value after being processed is changed into a left and right sound channel adjusting component, so that the component of the sound amplified by the microphone on the left and right channels changes along with the change of the distance specific value, and the sound played by left and right sound boxes (5) and (6) has an effect of double-sound channel stereophonic sound. Therefore, reproduction of the stereophonic sound can be realized by the stage site sound amplifier, an immersive feeling of the performance site is greatly enhanced, and the program appreciation is enabled to be more tasteful.

Description

technical field [0001] The invention relates to the field of audio equipment, in particular to the aspect of stereo reproduction during on-site sound amplification on stage. Background technique [0002] The sound in nature is three-dimensional, and the three-dimensional space where the sound source is located can be perceived. If we record the natural sound and then replay it, the replayed sound will not be three-dimensional when it comes out of the speaker, because the sound we hear has no sense of orientation of the natural sound source, and we can only perceive the position of the speaker, not Once the orientation of the actual sound source is identified, there will be no stereoscopic effect. To realize the stereo effect of replay, with regard to the existing technology, the most common is the two-channel stereo playback mode. You can feel the left and right spatial sense of the sound source, which is an approximate stereo sound, but the effect is also quite good. To ...

AI Technical Summary

Problems solved by technology

[0004] The live sound reinforcement on the stage was recorded in an open environment. There were many and loud noises on the scene, so the recording method in the recording studio could not be used (in the recording studio, the microphones were fixed on the left and right sides). In order to reduce the noise, it was also recorded. It is necessary to increase the pickup volume of the microphone to suppress noise. To increase the pickup volume of the microphone, the microphone cannot be fixed in one place, but must run with the sound source, so as to always ensure the maximum pickup effect of the sound source, and the microphone is still Choose one with strong directionality to avoid the incoming noise from the surroundings, which will cause the microphone to be unable to correspond to the corresponding channel.

In the existing technology, only one sound source corresponds to one microphone for stage live sound reinforcement, and the audio picked up by each microphone is simply superimposed and then sent to the stereo sound amplification equipment for re-broadcasting. Therefore, the stage live sound reinforcement cannot restore stereo sound. of

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