Loudspeaker denoising method based on FT platform

A loudspeaker and platform technology, applied in the computer field, can solve problems affecting normal use, audio control chip blasting sound, etc., and achieve the effects of strong practicability, improved sound output quality, and easy promotion

Active Publication Date: 2016-05-11
SHANDONG HAILIANG INFORMATION TECH RES INST
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] For equipment with audio output, the audio power amplifier is an important part of the system. Its performance and whether it can work normally and stably play a decisive role in the equipment. When the existing audio and video ou...

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  • Loudspeaker denoising method based on FT platform
  • Loudspeaker denoising method based on FT platform
  • Loudspeaker denoising method based on FT platform

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Embodiment Construction

[0016] The present invention will be further described below in conjunction with specific embodiments.

[0017] The present invention provides a method for noise reduction of loudspeakers based on Feiteng platform, as attached figure 1 , figure 2 , image 3 As shown, the specific implementation process is: including a PSOC chip, the PSOC chip is connected to the audio control chip and the speaker through the explosion sound cancellation module, the audio control module and the speaker are connected to each other, and the audio control module is also connected to the USBHUB through the USB interface The controller, the USBHUB controller is connected to the CPU chip through the coprocessor; the above-mentioned explosion sound cancellation module uses the transistor to pull down the abnormal pulse generated at the moment of startup or shutdown to prevent the noise from being transmitted to the speaker. Because the transistor has a high input impedance, it is relatively large. The p...

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Abstract

The invention discloses a loudspeaker denoising method based on a soar platform. The specific implementation process of the loudspeaker denoising method is as follows: a PSOC chip is contained, the PSOC chip is connected to an audio control chip and a loudspeaker through an pop noise elimination module, the audio control module and the loudspeaker communicate with each other, the audio control module is further connected to a USB HUB controller through a USB interface, and the USB HUB controller is connected with a CPU chip through a coprocessor; and the pop noise elimination module pulls down abnormal pulse generated at the moment of startup or shutdown by a transistor to prevent noise from being transmitted to the loundspeaker. Compared with the prior art, according to the loudspeaker denoising method based on the PT platform, an audio output device provided with the pop noise elimination module can filter pop noise generated during power up and power down of an audio chip at the startup moment of the device, so that the sound output quality of the audio device can be greatly improved, and a noise filtering function is realized.

Description

Technical field [0001] The invention relates to the field of computer technology, in particular to a loudspeaker noise reduction method with strong practicability and based on a Feiteng platform. Background technique [0002] For devices with audio output, the audio power amplifier is an important part of the system. Its performance and whether it can work normally and steadily play a decisive role in the equipment. The existing audio and video output equipment is switched on or off, or When the device enters the sleep, hibernation state, and wakes up in the above state, its audio control chip often produces a popnoise at the moment of power supply and power failure, which affects people's normal use. In order to improve product quality, the present invention provides a speaker noise reduction method based on the Feiteng platform. The method adds an explosion sound cancellation module to the notebook motherboard of the Feiteng platform, starts with the noise source itself, and fi...

Claims

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Application Information

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IPC IPC(8): H04R3/04
CPCH04R3/04H04R2203/00
Inventor 黄凯薛广营贡维
Owner SHANDONG HAILIANG INFORMATION TECH RES INST
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