sound compression guide

Abstract

The invention discloses a sound compression guiding device, which includes a sound transmission channel, a sound gathering device for compressing and gathering sound waves emitted by a mid-low frequency sound unit, and a horn, and the sound gathering device and the horn are communicated through the sound transmission channel; the sound gathering device includes At least two concentric sound gathering units, the sound gathering unit is in the shape of an inverted cone, including a first end with a smaller size and a second end with a larger size. Among different sound gathering units, the first end and the second end The size is different, and the size ratio of the first end and the second end in different sound gathering units is the same; the first end is fixedly connected to the sound transmission channel, and there is also a sound wave transmission to the sound transmission channel between adjacent sound gathering units. Acoustic gap. The present invention cooperates with the sound-gathering device, the sound-transmitting channel and the horn, so that the sound waves are gathered by the sound-gathering device and then diffused through the horn, which greatly improves the use efficiency of the sound energy of the middle and low-frequency sounding unit, and at the same time reasonably reduces the volume of the speaker, making its Applicable to a variety of sound reinforcement occasions.

Description

technical field [0001] The invention relates to the field of acoustic devices, in particular to a sound compression guiding device. Background technique [0002] The frequency wavelength corresponding to the mid-bass frequency band (60Hz-600Hz) is from 5.73 meters to 0.573 meters. Usually, this frequency band emitted by the speaker cannot control the projection of energy. The energy in this frequency band will spread in a manner close to spherical diffusion. Make energy use less efficient. The traditional method of controlling sound projection in the mid-bass range is to increase the horn size of the speaker, but this method cannot improve the efficiency of using sound energy, and at the same time, the size is too large to be universally applicable. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a sound compression guide device with a moderate volume and effectively improve energy utilization efficiency in view...

AI Technical Summary

Problems solved by technology

[0002] The frequency wavelength corresponding to the mid-bass frequency band (60Hz-600Hz) is from 5.73 meters to 0.573 meters. Usually, this frequency band emitted by the speaker cannot control the projection of energy. The energy in this frequency band will spread in a manner close to spherical diffusion. make energy use less efficient

The traditional method of controlling sound projection in the mid-bass range is to increase the horn size of the speaker, but this method cannot improve the efficiency of using sound energy, and at the same time, the size is too large to be universally applicable

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