Mobile phone and method for processing down voice

A mobile phone and voice filtering technology, applied in voice analysis, telephone communication, instruments, etc., can solve problems such as inaudible voice, and achieve the effect of reducing noise and eliminating background noise
CN101465901AInactive Publication Date: 2009-06-24KONKA GROUP
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
KONKA GROUP
Publication Date
2009-06-24
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The invention relates to a mobile phone and a downlink voice processing method, comprising a baseband chip and a voice filtration module. The baseband chip sends the instructions of initialization and function setting to the voice filtration module; the voice filtration module receives the voice signals input by a transmitter and sends the voice signals to the baseband chip after processing the voice signals; the baseband chip judges whether to execute echo cancellation to the voice signals, and if yes, the baseband chip converts the voice signals to pulse code modulation (PCM )data and sends the data to the voice filtration module; and the data is processed with echo cancellation by the voice filtration module and is converted to voice signals which are then sent back to the baseband chip. Through treatment to the downlink voice signals, even in the case that the counterpart who is in conversation with the user of such functional mobile phone is in a background in which the noise increases suddenly, the voice of the speaker can be automatically increased and the noise can be reduced; the echoes can be eliminated or reserved; and specific noises can be eliminated, thereby realizing that voices can be clearly heard in a noisy environment or under special weather conditions.
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Description

technical field

[0001] The invention relates to a mobile phone, and more specifically relates to a mobile phone capable of eliminating specific noise and echo of downlink voice and reducing background noise and a downlink voice processing method. Background technique

[0002] At present, mobile phones on the market only perform simple filtering on the downlink voice signal during a call, basically "faithfully" mixing the human voice and the background sound and sending it out from the radio frequency. In this way, the other party who is talking in a noisy environment or under special weather conditions may not be able to hear the voice sent by the mobile phone. Contents of the invention

[0003] The technical problem to be solved by the present invention is to provide a mobile phone and a downlink voice processing method for the above-mentioned defects of the prior art.

[0004] The technical solution adopted by the present invention to solve the technical problem is to c...

Claims

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