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Sound projection screen for improving tone quality effect

A technology of projection screen and sound, applied in the field of projection screen, can solve the problems of large medium and high audio frequency blocking, poor sound quality effect, and high sound playback, etc., and achieve the effect of improving structure, simple structure and low cost.

Pending Publication Date: 2019-12-27
AMINA SOUND SHENZHEN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The speakers of the existing audio projection screens are all placed behind the projection screen. Since the curtains of modern high-end projection screens are already multi-layered, they have a great barrier to medium and high-frequency sounds, especially high-frequency sounds, resulting in high-frequency sounds. Played through the projection screen, tested from the front of the projection screen, the measured results, from 10KHz to 20KHz dropped sharply at minus 12dB, making the sound quality not good

Method used

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  • Sound projection screen for improving tone quality effect
  • Sound projection screen for improving tone quality effect

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Embodiment Construction

[0018] A kind of sound projection screen that this embodiment proposes is used to improve the sound quality effect, refer to figure 1 and figure 2 , including a projection screen 1, at least one sounding board is installed on the back side of the projection screen 1, an audio driver 3 for driving the sounding of the sounding board is installed on any of the sounding boards, and the audio driver 3 is connected to the sounding board through a terminal post 4 An external power amplifier (not shown in the figure) is connected, and the terminal post 4 is connected to the audio driver 3 through a welding connecting piece (not shown in the figure); the sounding board and the projection screen 1 are connected by at least A middle and high-pitched sound film 5 is connected, and the middle and high-pitched sound film 5 is arranged at the position of the center of the sounding board or near the center of the sounding board. The position close to the center of the sounding board is set ...

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Abstract

The invention discloses a sound projection screen for improving the tone quality effect, and the screen comprises a projection screen body, at least one sound production board is installed on the backsurface of the projection screen body, an audio driver for driving the sound production board to produce sound is installed on any sound production board, and the audio driver is connected with an external power amplifier through a binding post, wherein the sounding board is connected with the projection screen through at least one mid-high pitch sound film, and the mid-high pitch sound film is arranged at the center of the sounding board or at a position close to the center of the sounding board. According to the technical scheme, the structure of a traditional sound projection screen is improved, and the tone quality effect of the sound projection screen is improved.

Description

technical field [0001] The invention relates to the field of projection screens, in particular to an acoustic projection screen for improving sound quality. Background technique [0002] The audio projection screen is an audio-visual integrated intelligent audio screen that is suitable for home, business, teaching, entertainment and other fields. It integrates the projection screen and audio equipment. The speakers of the existing audio projection screens are all placed behind the projection screen. Since the curtains of modern high-end projection screens are already multi-layered, they have a great barrier to medium and high-frequency sounds, especially high-frequency sounds, resulting in high-frequency sounds. Played through the projection screen, from the positive test of the projection screen, the measured results show a sharp drop of minus 12dB from 10KHz to 20KHz, which makes the sound quality not good. Contents of the invention [0003] The main purpose of the pres...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04R1/20G03B21/56
CPCG03B21/56H04R1/20
Inventor 肖敦金李景海
Owner AMINA SOUND SHENZHEN CO LTD
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