Digital sound production device of vertical piano

A technology for upright pianos and sound-generating devices, applied to pianos, stringed instruments, instruments, etc., can solve problems such as uneven sound pressure distribution, poor sound quality, sound phase interference, etc., and achieve clear treble and bass layers and timbre restoration effect Good, treble-clear effect

Active Publication Date: 2011-06-29
HUBEI HUADU PIANO MFG
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a simple structure, different sound pressure for the existing digital piano, the problems of uneven sound pressure distribution, sound phase interference and

Method used

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  • Digital sound production device of vertical piano
  • Digital sound production device of vertical piano

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Embodiment Construction

[0015] The present invention will be described in further detail below in conjunction with accompanying drawing description and specific embodiment:

[0016] see figure 1 , the upright piano digital sounding device of the present invention comprises piano body 1, loudspeaker 4, and the rear portion of piano body 1 is a hollow box body, and sound box board 8 is horizontally arranged in the hollow box body of described piano body 1 rear portion, and sound box The board 8 separates the hollow box body into upper and lower two sound boxes, the upper sound box is a high-frequency sound box 2, the lower sound box is a low-frequency sound box 3, and a partition 5 is vertically arranged in the length direction of the low-frequency sound box 3, and the partition 5 The low-frequency sound box 3 is divided into two sound boxes on the left and right, and two speaker holes are symmetrically opened in the length direction of the sound box plate 8, and a speaker 4 is installed in each speake...

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PUM

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Abstract

The invention discloses a digital sound production device of a vertical piano, which comprises a piano body (1) and loudspeakers (4), wherein the rear part of the piano body (1) is provided with a hollow box body; a sound box board (8) is arranged in the hollow box body on the rear part of the piano body (1) transversely; the hollow box body is partitioned into an upper high-frequency sound box (2) and a lower low-frequency sound box (3) through the sound box board (8); a clapboard (5) is arranged in the low-frequency sound box (3); two loudspeaker holes are formed on the sound box board (8); the loudspeakers (4) are arranged in the two loudspeaker holes; and the back board walls of a left sound box body and a right sound box body of the low-frequency sound box (3) are provided with a guide hole (6) respectively. By the device, the sound box board is used for separating the high-frequency sound box from the low-frequency sound box, the low-frequency sound box is partitioned into two box bodies through the clapboard, and the problems of phase interference and short circuit of low-frequency sound are effectively solved; and the device has fine, well-bedded and ambient tone quality and can bring strong hearing sense shock to a listener.

Description

technical field [0001] The invention relates to a sounding device, in particular to a digital sounding device for an upright piano. Background technique [0002] When the sound wave is at a low frequency, the propagation of the sound wave has a strong diffraction ability and is almost non-directional. Therefore, the sound of the speaker can be diffracted to the front of the diaphragm, and the sound heard at a certain point in front of the speaker should be the synthesis of the front sound wave and the rear sound wave. If the phases of the two sound waves at this point are the same, the combined sound pressure at this point will increase; if the phases of the two sound waves are opposite, the sound pressure at this point will decrease, or even be zero and no sound can be heard. The phenomenon at this time is similar to the phenomenon that the voltage drops due to the short circuit of the circuit, resulting in a short circuit of the sound. At different frequencies, the phase...

Claims

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Application Information

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IPC IPC(8): G10C3/00G10C1/02
Inventor 汪其见李文平
Owner HUBEI HUADU PIANO MFG
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