CN101465901A - Mobile phone and method for processing down voice - Google Patents
Mobile phone and method for processing down voice Download PDFInfo
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- CN101465901A CN101465901A CNA2007101250907A CN200710125090A CN101465901A CN 101465901 A CN101465901 A CN 101465901A CN A2007101250907 A CNA2007101250907 A CN A2007101250907A CN 200710125090 A CN200710125090 A CN 200710125090A CN 101465901 A CN101465901 A CN 101465901A
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- baseband chip
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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
The present invention relates to mobile phone, more particularly, relate to a kind of mobile phone and method for processing down voice of eliminating downlink voice specific noise and echo, reduction background noise.
Background technology
Mobile phone has in the market only been done simple Filtering Processing in when conversation to the downlink voice signal, is basically voice and background sound to be mixed to send from radio frequency " loyalty ".The opposing party who under noisy environment or special weather condition, converses voice that this mobile phone sends of just may can not hear clearly like this.
Summary of the invention
The technical problem to be solved in the present invention is that the above-mentioned defective at prior art provides a kind of mobile phone and method for processing down voice.
The technical solution adopted for the present invention to solve the technical problems is: construct a kind of mobile phone, comprise baseband chip and voice filtration module.Described baseband chip will be used for the instruction of initialization and function setting, send to described voice filtration module; Described voice filtration module receives the voice signal of microphone input, and earlier convert voice signal to digital signal through ADC, then digital signal is eliminated specific noise, after reducing the processing of background noise and the voice signal that strengthens voice, convert voice signal to through DAC again, and send to described baseband chip, described baseband chip judges whether and will carry out echo elimination to described voice signal, if, then described baseband chip changes into described voice signal the PCM pulse code modulation data and sends to described voice filtration module, sends to described baseband chip again after described voice filtration module is carried out the echo elimination and converted voice signal to.
In mobile phone of the present invention, described voice filtration module is connected to described baseband chip by the I2C internal integrate circuit bus interface.
In mobile phone of the present invention, described voice filtration module is the A1010 chip.
According to an aspect of the present invention, provide a kind of method for processing down voice, may further comprise the steps:
A, voice filtration module receive being used to that baseband chip sends to carry out the instruction of initialization and function setting and operates accordingly;
B, voice filtration module received speech signal;
C, described voice filtration module send to baseband chip after described voice signal is handled;
D, described baseband chip receive described voice signal, and according to the setting of echo elimination/reservation function, judge whether and will carry out echo elimination to described voice signal, if, then enter step e, otherwise, described voice signal is sent to radio frequency chip RF, end process;
E, described baseband chip convert described voice signal to the PCM pulse code modulation data, and send to described voice filtration module;
F, described voice filtration module receive described PCM pulse code modulation data, and convert it to described voice signal through after the echo cancellation process;
G, described voice filtration module send it back described baseband chip with described voice signal;
H, described baseband chip receive described voice signal through echo processing, and send to described radio frequency chip RF, end process.
In method for processing down voice of the present invention, described voice filtration module is the A1010 chip.
Implement mobile phone of the present invention and method for processing down voice, has following beneficial effect: by to the downlink voice Signal Processing, even the opposing party who makes and use this functional mobile phone conversation can automatically increase people's voice and reduce noise under the situation that background noise increases suddenly; Elimination/reservation echo; Eliminate the specific background noise.Thereby be implemented in and also can clearly hear under noisy environment or the special weather condition and transmit voice.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples, in the accompanying drawing:
Fig. 1 is the structured flowchart of mobile phone of the present invention.
Embodiment
As shown in Figure 1, in mobile phone of the present invention, comprise baseband chip 1 and voice filtration module 2, at work, voice filtration module 2 is controlled it by baseband chip 1 by the I2C interface.Baseband chip 1 sends instructions to voice filtration module 2, makes it carry out initialization and function setting.Voice filtration module 2 is from the microphone received speech signal, according to the instruction of baseband chip 1 voice signal carried out the processing of corresponding function, sends to baseband chip 1 then.Carry out echo cancellation performance if desired, then baseband chip 1 changes into the PCM data to voice signal and beams back voice filtration module 2, sends back to baseband chip 1 again after voice filtration module 2 is handled.Baseband chip 1 according to common flow processing, sends to radio frequency chip RF after receiving signal after voice filtration module 2 is handled then, is launched by RF
In force, voice filtration module 2 is A1010 chips.
In this mobile phone, its method for processing down voice may further comprise the steps:
A, described baseband chip send instructions to described voice filtration module, make it carry out initialization and function setting;
B, voice filtration module received speech signal;
C, described voice filtration module send to baseband chip after described voice signal is handled;
D, baseband chip 1 received speech signal, and according to the setting of echo elimination/reservation function, judge whether and will carry out echo elimination to voice signal, if, then enter step e, otherwise, voice signal is sent to radio frequency chip RF, end process;
E, baseband chip 1 convert voice signal to the PCM pulse code modulation data, and send to voice filtration module 2;
F, voice filtration module 2 receive the PCM pulse code modulation data, and convert it to described voice signal through after the echo cancellation process;
G, described voice filtration module send it back described baseband chip with described voice signal;
The voice signal that h, baseband chip 1 receive through echo processing, and send to radio frequency chip RF, end process.
Whole process is such: when system start-up, baseband chip will be used for the instruction of initialization and function setting, send to voice filtration module, and voice filtration module is operated accordingly, enter the idle pattern then.When needs were conversed, the instruction that baseband chip sends startup and enters speech pattern made it enter speech pattern to voice filtration module.Voice filtration module receives the voice signal of microphone input then, sends to baseband chip after voice signal is handled; Baseband chip judges whether and will carry out echo elimination to voice signal, if, then baseband chip changes into voice signal the PCM pulse code modulation data and sends to voice filtration module, sends it back baseband chip again after voice filtration module is carried out the echo elimination and converted voice signal to.Voice module withdraws from speech pattern behind the end of conversation.
The present invention describes by several specific embodiments, it will be appreciated by those skilled in the art that, without departing from the present invention, can also carry out various conversion and be equal to alternative the present invention.In addition, at particular condition or concrete condition, can make various modifications to the present invention, and not depart from the scope of the present invention.Therefore, the present invention is not limited to disclosed specific embodiment, and should comprise the whole execution modes that fall in the claim scope of the present invention.
Claims (5)
1, a kind of mobile phone comprises baseband chip, it is characterized in that, also comprises voice filtration module; Described baseband chip will be used for the instruction of initialization and function setting, send to described voice filtration module; Described voice filtration module receives the voice signal of microphone input, sends to described baseband chip after voice signal is handled; Described baseband chip judges whether and will carry out echo elimination to described voice signal, if, then described baseband chip changes into described voice signal the PCM pulse code modulation data and sends to described voice filtration module, sends it back described baseband chip again after described voice filtration module is carried out the echo elimination and converted voice signal to.
2, mobile phone according to claim 1 is characterized in that, described voice filtration module is connected to described baseband chip by the I2C internal integrate circuit bus interface.
3, mobile phone according to claim 1 and 2 is characterized in that, described voice filtration module is the A1010 chip.
4, a kind of method for processing down voice is characterized in that, may further comprise the steps:
A, voice filtration module receive being used to that baseband chip sends to carry out the instruction of initialization and function setting and operates accordingly;
B, described voice filtration module receive the voice signal of microphone input;
C, described voice filtration module send to baseband chip after described voice signal is handled;
D, described baseband chip receive described voice signal, and according to the setting of echo elimination/reservation function, judge whether and will carry out echo elimination to described voice signal, if, then enter step e, otherwise, described voice signal is sent to radio frequency chip RF, end process;
E, described baseband chip convert described voice signal to the PCM pulse code modulation data, and send to described voice filtration module;
F, described voice filtration module receive described PCM pulse code modulation data, and convert it to described voice signal through after the echo cancellation process;
G, described voice filtration module send it back described baseband chip with described voice signal;
H, described baseband chip receive described voice signal through echo processing, and send to described radio frequency chip RF, end process.
5, method for processing down voice according to claim 1 is characterized in that, described voice filtration module is the A1010 chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101250907A CN101465901A (en) | 2007-12-18 | 2007-12-18 | Mobile phone and method for processing down voice |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101250907A CN101465901A (en) | 2007-12-18 | 2007-12-18 | Mobile phone and method for processing down voice |
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| Publication Number | Publication Date |
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| CN101465901A true CN101465901A (en) | 2009-06-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNA2007101250907A Pending CN101465901A (en) | 2007-12-18 | 2007-12-18 | Mobile phone and method for processing down voice |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102143273A (en) * | 2011-04-29 | 2011-08-03 | 惠州Tcl移动通信有限公司 | Mobile phone and method for realizing frequency modulation (FM) broadcast communication of mobile phone |
| CN102831897A (en) * | 2012-08-15 | 2012-12-19 | 歌尔声学股份有限公司 | Multimedia device and multimedia signal processing method |
| CN104269177A (en) * | 2014-09-22 | 2015-01-07 | 联想(北京)有限公司 | Voice processing method and electronic device |
| CN106454637A (en) * | 2016-12-16 | 2017-02-22 | 郑州云海信息技术有限公司 | Audio module silencing structure and method of server system |
| CN112929055A (en) * | 2021-01-19 | 2021-06-08 | 北京集睿致远科技有限公司 | Echo cancellation circuit |
| CN113455489A (en) * | 2021-04-01 | 2021-10-01 | 深圳电目科技有限公司 | Bird repelling method and bird repelling device applied to high-voltage cable tower and high-voltage cable tower |
-
2007
- 2007-12-18 CN CNA2007101250907A patent/CN101465901A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102143273A (en) * | 2011-04-29 | 2011-08-03 | 惠州Tcl移动通信有限公司 | Mobile phone and method for realizing frequency modulation (FM) broadcast communication of mobile phone |
| CN102831897A (en) * | 2012-08-15 | 2012-12-19 | 歌尔声学股份有限公司 | Multimedia device and multimedia signal processing method |
| CN104269177A (en) * | 2014-09-22 | 2015-01-07 | 联想(北京)有限公司 | Voice processing method and electronic device |
| CN104269177B (en) * | 2014-09-22 | 2017-11-07 | 联想(北京)有限公司 | A kind of method of speech processing and electronic equipment |
| CN106454637A (en) * | 2016-12-16 | 2017-02-22 | 郑州云海信息技术有限公司 | Audio module silencing structure and method of server system |
| CN112929055A (en) * | 2021-01-19 | 2021-06-08 | 北京集睿致远科技有限公司 | Echo cancellation circuit |
| CN112929055B (en) * | 2021-01-19 | 2022-12-27 | 北京集睿致远科技有限公司 | Echo cancellation circuit |
| CN113455489A (en) * | 2021-04-01 | 2021-10-01 | 深圳电目科技有限公司 | Bird repelling method and bird repelling device applied to high-voltage cable tower and high-voltage cable tower |
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