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A kind of audio playing device and equipment

A technology for audio playback and equipment, applied in loudspeakers, sensor components, sensors, etc., can solve the problems of limited application, high assembly difficulty, and high cost

Active Publication Date: 2020-10-16
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the complex manufacturing process of raw materials, low strength, high difficulty in assembly, high cost and selectivity to the shell, resulting in low universal applicability and limiting its application

Method used

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  • A kind of audio playing device and equipment
  • A kind of audio playing device and equipment
  • A kind of audio playing device and equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Embodiment 1: The first audio playback device includes a cavity-increasing material. The cavity-increasing material is polyester porous fiber with a circular cross section and short fibers. The acoustic cavity-increasing material is spun into a non-woven fabric, and the weight per unit area is 0.050 grams. The resonance frequency of the first audio playback device is 850 Hz before adding the cavity-increasing material, and the resonance frequency f0 is reduced by 100 Hz after adding the cavity-increasing material. The sound pressure level (SPL) at the frequency of 500HZ was 74.50dB before adding the cavity-enhancing material, and the sound pressure level (SPL) at the frequency of 500HZ increased by 0.6dB after adding the cavity-enhancing material. The sound pressure level (SPL) at the frequency of 2000HZ was 84.3dB before adding the cavity-increasing material, and the sound pressure level (SPL) at the frequency of 2000HZ increased by 0.25dB after adding the cavity-enha...

Embodiment 2

[0047] Embodiment 2: The first audio playback device includes a cavity-increasing material. The cavity-increasing material is polyester porous fiber with oval cross section and short fiber. The acoustic cavity-increasing material is woven into fabric by needle punching, and the weight per unit area is 0.08 grams. The resonant frequency f0 of the first audio playback device is 880 Hz before adding the cavity-increasing material, and the resonant frequency f0 is reduced by 110 Hz after adding the cavity-increasing material. The sound pressure level (SPL) at the frequency of 500HZ was 73.6dB before adding the cavity-enhancing material, and the sound pressure level (SPL) at the frequency of 500HZ increased by 0.70dB after adding the cavity-enhancing material. The sound pressure level (SPL) at the frequency of 2000HZ was 83.8dB before adding the cavity-increasing material, and the sound pressure level (SPL) at the frequency of 2000HZ increased by 0.30dB after adding the cavity-enh...

Embodiment 3

[0048] Embodiment 3: The first audio playback device includes a cavity-increasing material. The cavity-increasing material is polyethylene porous fiber with an elliptical cross section and a skin-core structure. The acoustic cavity-increasing material is sprayed with filaments by a composite spinning method, and woven into cloth, and the weight per unit area is 0.10 grams. The resonant frequency f0 of the first audio playback device is 830 Hz before adding the cavity-increasing material, and the resonant frequency f0 is reduced by 95 Hz after adding the cavity-increasing material. The sound pressure level (SPL) at the frequency of 500HZ was 74.10dB before adding the cavity-increasing material, and the sound pressure level (SPL) at the frequency of 500HZ increased by 0.75dB after adding the cavity-enhancing material. The sound pressure level (SPL) at the frequency of 2000Hz was 83.5dB before adding the cavity-increasing material, and the sound pressure level (SPL) at the frequ...

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Abstract

The embodiment of the invention discloses an audio playing device and equipment. The audio playback device includes a speaker, a speaker container and a cavity-increasing material, and the speaker and the cavity-increasing material are arranged in the speaker container; the cavity-increasing material is a fabric made of fibers with irregular holes on the surface, Holes are formed between the fibers of the fabric. A fabric made by setting fibers with irregular holes on the surface in the audio playback device. Thus, when the audio playback device is used for audio playback, the gaps between the fibers of the fabric and the irregular holes on the surface of the fibers reduce the resonant frequency f0 of the audio playback device and increase the frequency bandwidth.

Description

[0001] This application claims the priority of the Chinese patent application with the application number 201610905803.0 and the title of the invention "a loudspeaker device and terminal" filed with the Patent Office of the State Intellectual Property Office of China on October 17, 2016, the entire contents of which are hereby incorporated by reference In this application. technical field [0002] Embodiments of the present invention relate to the technical field of audio equipment, and in particular, to an audio playback device and equipment. Background technique [0003] In order to make the low-frequency response of the speaker better and achieve a fuller and more mellow sound effect, it is necessary to reduce the resonant frequency f0 of the speaker and increase the frequency bandwidth of the device. In the prior art, there are usually two methods. One is to increase the space of the back cavity of the speaker, such as increasing the appearance size of the speaker box, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04R9/06H04R9/02
CPCH04R9/02H04R9/06H04R2400/11H04R1/2803H04R2499/11H04R1/025H04R1/10H04R1/2811
Inventor 孙正滨任艳辉于利刚单海波韩梅梅
Owner HUAWEI TECH CO LTD
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