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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

Inactive Publication Date: 2009-06-24
KONKA GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this way, the other party on the call may not be able to hear the voice sent by the mobile phone in a noisy environment or under special weather conditions.

Method used

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  • Mobile phone and method for processing down voice

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Embodiment Construction

[0020] Such as figure 1 As shown, the mobile phone of the present invention includes a baseband chip 1 and a voice filter module 2. In operation, the voice filter module 2 is controlled by the baseband chip 1 through an I2C interface. The baseband chip 1 sends an instruction to the speech filter module 2 to perform initialization and function setting. The voice filtering module 2 receives voice signals from the microphone, performs corresponding functional processing on the voice signals according to the instructions of the baseband chip 1 , and then sends them to the baseband chip 1 . If the echo cancellation function needs to be performed, the baseband chip 1 converts the voice signal into PCM data and sends it back to the voice filter module 2, and then sends it back to the baseband chip 1 after being processed by the voice filter module 2. After the baseband chip 1 receives the signal processed by the voice filter module 2, it processes it according to the ordinary proces...

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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.

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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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04M1/725H04M9/08G10L21/02H04M1/72433
Inventor 黄小静
Owner KONKA GROUP
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