Polyphony electronic loudspeaker

Abstract

The invention relates to an electronic loudspeaker, in particular to an electronic loudspeaker with multiple musical scales, which comprises a power source unit, a triggering unit, a control unit, a driving circuit and loudspeakers, wherein the driving unit comprises at least two paths which respectively drive the corresponding numbers of the loadspeakers according to the different frequency signals output by the control unit. The electronic loudspeaker outputs various frequency signals to drive a plurality of the loudspeakers through the control unit, and enables the loudspeakers to produce a plurality of musical notes and then to be combined through the control unit according to the basic rhythm, which forms various bars of music, and a plurality of the loudspeakers can generate the chord effect and the surround sound effect, and can produce melodized music, which realizes the aim of warning, also brings the enjoyment of musicality, and further can be expanded into the output signals with more frequency according to the requirements of users, thereby realizing the effect of more melodized sound. Furthermore, the trigger unit comprises a positive triggering circuit and a negative triggering circuit, which enables triggering signals to trigger the loudspeakers to alarm, no matter triggering the positive electrode or the negative electrode, which is convenient for users to install and use.

Description

technical field [0001] The invention relates to an electronic horn, in particular to a polyphonic scale electronic horn. Background technique [0002] The existing electronic horns are mainly monophonic. Later, some three-tone electronic horns appeared, which can emit three kinds of sounds according to the settings, siren sound, clearing sound, etc., but all the existing electronic horns only use one horn. The sound is output according to the internally set audio signal, and the output sound is still a single-tone signal, so the sound effect is relatively simple. Contents of the invention [0003] The invention overcomes the above disadvantages and provides a multi-tone electronic horn with simple structure and flexible control. [0004] The technical solution adopted by the present invention to solve its technical problems is: a multi-tone electronic horn, including a power supply unit and a horn, and also includes [0005] A trigger unit for receiving an external trigg...

AI Technical Summary

Problems solved by technology

[0002] The existing electronic horns are mainly monophonic. Later, some three-tone electronic horns appeared, which can emit three kinds of sounds according to the settings, siren sound, clearing sound, etc., but all the existing electronic horns only use one horn. Output sound according to the audio signal set internally, the output sound is still a mono signal, so the sound effect is relatively simple

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