Voice amplifying circuit based on DSP (Digital Signal Processor) control

An audio amplifier circuit and amplifier circuit technology, which is applied in the electronic field to achieve the effect of improving compactness and aesthetics, and making the call experience comfortable

Inactive Publication Date: 2014-11-19
QINGDAO SHENGJIA INFORMATION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention proposes a voice amplification circuit based on DSP control, which solves the problem of volume adjustment through buttons in the prior art

Method used

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  • Voice amplifying circuit based on DSP (Digital Signal Processor) control
  • Voice amplifying circuit based on DSP (Digital Signal Processor) control

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Embodiment Construction

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0026] Such as figure 1 As shown, the voice amplifying circuit based on DSP control of the present invention includes: an audio input device 100 and an audio output device 400, the audio input device is connected to a speaker 800 through a first audio amplifying circuit 700, and the speaker outputs the received audio to the user For the voice signal of another terminal device, the audio output device 400 receives the user's voice signal and uploads it to the mobile...

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Abstract

The invention provides a voice amplifying circuit based on DSP (Digital Signal Processor) control. The voice amplifying circuit comprises an audio input device and an audio output device, wherein the audio input device is connected to a loudspeaker through a first audio amplifying circuit; the loudspeaker is used for outputting a voice signal received from another terminal device to a user; and the audio output device is used for receiving the voice signal of the user, uploading the voice signal to a mobile communication network through a second audio amplifying circuit, and transmitting the voice signal to another terminal device through the mobile communication network. Power compensation is performed on an audio signal input into the audio input device and an audio signal output by the audio output device through a compensation circuit, and the volumes of the input and output audio signals are adjusted automatically according to a volume differential value between the received and output audio signals, so that comfortable conversation experience is brought to the user; and moreover, setting of volume keys is not needed, and the compactness and attractiveness of a mobile phone are further improved.

Description

technical field [0001] The invention relates to the electronic field, in particular to a voice amplification circuit based on DSP control. Background technique [0002] Existing mobile phones have gone through the era of non-smart phones and smart phones, especially since Apple released the iPhone smart phone, the structure of the mobile phone industry has undergone revolutionary changes, and gradually entered the era of smart phones, and the development of related industries has also entered a fast-growing channel. In 2008, the global smartphone sales volume was 139 million units, accounting for only 11.40% of the global mobile phone sales volume. By 2013, the global smartphone sales volume had reached 968 million units, accounting for 53.56% of the global mobile phone sales volume. Compared with 2008 It has grown nearly six times, and the average annual compound growth rate is 47.36%, which is much higher than the growth rate of global mobile phone sales. [0003] Regardl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04M1/02H04M1/60H04R3/00
Inventor 隋海燕
Owner QINGDAO SHENGJIA INFORMATION TECH
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