CN103716446A - Method and device for improving conversation tone quality on mobile terminal - Google Patents
Method and device for improving conversation tone quality on mobile terminal Download PDFInfo
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- CN103716446A CN103716446A CN201210379489.9A CN201210379489A CN103716446A CN 103716446 A CN103716446 A CN 103716446A CN 201210379489 A CN201210379489 A CN 201210379489A CN 103716446 A CN103716446 A CN 103716446A
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- radio reception
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R3/00—Circuits for transducers, loudspeakers or microphones
- H04R3/005—Circuits for transducers, loudspeakers or microphones for combining the signals of two or more microphones
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2499/00—Aspects covered by H04R or H04S not otherwise provided for in their subgroups
- H04R2499/10—General applications
- H04R2499/11—Transducers incorporated or for use in hand-held devices, e.g. mobile phones, PDA's, camera's
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- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Telephone Function (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
This invention discloses a method and a device for improving conversation tone quality on mobile terminal. The method comprises steps of acquiring the location of people's mouth using the mobile terminal for conversation, acquiring a voice reception area of double microphones or multiple microphones according to the information of people's mouth, and determining whether the voice reception area exceeds a default voice reception area preset by the mobile terminal or not, if yes, adjusting the voice reception area into a voice reception area for the conversation, if not, using the default voice reception area as the voice reception area for the conversation. The invention can improve conversation tone quality on the mobile terminal through checking the people's mouth location and then adjusting the voice reception area of microphones, avoid an outgoing downlink voice area, and improve the echo elimination of hand-free calls.
Description
Technical field
The present invention relates to mobile communication technology field, particularly relate to a kind of method and device that improves mobile terminal call tonequality.
Background technology
Along with mobile terminal product consumption increases, especially the fast development of intelligent machine and panel computer, no matter to use mobile network or WiFi(Wireless is Fidelity, Wireless Fidelity) network, user can use terminal and other people to converse anywhere or anytime.User is also more and more higher to the requirement of its call tone quality simultaneously.
In order to meet the needs of user's normal talking under noisy environment, two Mikes have become the standard configuration of terminal equipment.It is all to adopt steady-state noise to estimate mode that single Mike's terminal equipment is eliminated at noise, can only for example, to noise (sound of the wind) stably, there is good inhibition, but two Mikes' terminal has adopted the mode of space filtering, sound collecting can be concentrated on to some regions, can reduce to greatest extent noise and echo like this.
This regionality just, the position that has caused two Mike's noise reduction schemes to require mouth to speak is very strict, technology can only be applied to hand-held call mode, corresponding application scenarios is non-constant of hands-free and three-section earphone call (three-section earphone itself does not have Mike's equipment, and call can only adopt the intrinsic Mike of terminal to receive sound) effect more widely.Especially current WiFi function is in the application of intelligent terminal, VOIP(Voice on Internet Protocol) the extensive employing of technology, this hands-free and three-section earphone call is more and more widely used, but relevant technology do not improve, and becomes bottleneck.
Summary of the invention
The technical problem to be solved in the present invention is a kind of method and device that improves mobile terminal call tonequality, in order to solve the problem of the speech quality decline that in prior art, the change of mouth position brings.
For solving the problems of the technologies described above, on the one hand, the invention provides a kind of method that improves mobile terminal call tonequality, comprising:
Obtain the mouth positional information of utilizing the user that mobile terminal converses;
According to described mouth positional information, obtain two Mikes or many Mikes' radio reception region;
Judge that whether described radio reception region has exceeded the acquiescence radio reception region that described mobile terminal sets in advance, and if so, is adjusted into described radio reception region the radio reception region of call; If not, using described acquiescence radio reception region as the radio reception region of conversing.
Further, utilize people's face positional information described in the camera collection of described mobile terminal, according to described people's face positional information, obtain described mouth positional information.
Further, when described camera collection be individual people's face positional information time, whether described individual people's face of judgement is to be preset in people's face of following the trail of in mobile terminal, if, the mouth positional information corresponding according to described individual people's face, the radio reception region that obtains two Mikes or many Mikes; All radio reception region of single Mike being collected if not, is as the radio reception region of call.
Further, when described camera collection be multiple people's face positional informations time, whole radio reception region is adjusted into the radio reception region of call, or all radio reception region that single Mike is collected is as the radio reception region of call; Wherein, described whole radio reception region comprises radio reception region corresponding to each mouth positional information in multiple people's faces.
Further, described mouth positional information comprises that mouth is with respect to direction and the distance of mobile terminal.
On the other hand, the present invention also provides a kind of device that improves mobile terminal call tonequality, comprising:
Mouth location information acquiring unit, for obtaining the mouth positional information of utilizing the user that mobile terminal converses;
Radio reception region acquiring unit, for according to described mouth positional information, obtains two Mikes or many Mikes' radio reception region;
Processing unit, for judging that whether described radio reception region has exceeded the acquiescence radio reception region that described mobile terminal sets in advance, and if so, is adjusted into described radio reception region the radio reception region of call; If not, using described acquiescence radio reception region as the radio reception region of conversing.
Further, described mouth location information acquiring unit is utilized people's face positional information described in the camera collection of described mobile terminal, according to described people's face positional information, obtains described mouth positional information.
Further, when described camera collection be individual people's face positional information time, whether described individual people's face of judgement is to be preset in people's face of following the trail of in mobile terminal, if, the mouth positional information corresponding according to described individual people's face, the radio reception region that obtains two Mikes or many Mikes; All radio reception region of single Mike being collected if not, is as the radio reception region of call.
Further, when described camera collection be multiple people's face positional informations time, whole radio reception region is adjusted into the radio reception region of call, or all radio reception region that single Mike is collected is as the radio reception region of call; Wherein, described whole radio reception region comprises radio reception region corresponding to each mouth positional information in multiple people's faces.
Further, described mouth positional information comprises that mouth is with respect to direction and the distance of mobile terminal.
Beneficial effect of the present invention is as follows:
The present invention is by checking the position of mouth, and then adjustment Mike's radio reception region, has improved the speech quality of mobile terminal, and can avoid outer descending sound region of putting, and can improve the echo of hand-free call and eliminate.
Accompanying drawing explanation
Fig. 1 is the effect schematic diagram that the two Mikes of mobile terminal in the embodiment of the present invention (mobile phone) adjust radio reception region;
Fig. 2 is a kind of flow chart that improves the method for mobile terminal call tonequality in the embodiment of the present invention;
Fig. 3 is a kind of structural representation that improves the device of mobile terminal call tonequality in the embodiment of the present invention.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, does not limit the present invention.
As shown in Figure 1, in this area, for example, when mobile terminal (mobile phone) utilizes radio reception Mike and noise reduction Mike to converse, by changing noise reduction parameters, utilize different noise reduction algorithms just can realize the adjustment to radio reception region, for example, from radio reception region A, adjust to radio reception region B.Therefore, the present invention utilizes this principle, by following the trail of caller's mouth position, adjusts in real time radio reception region, and then improves call tone quality.
As shown in Figure 2, the embodiment of the present invention relates to a kind of method that improves mobile terminal call tonequality, comprising:
Step S101, obtains the mouth positional information of utilizing the user that mobile terminal converses;
In this step, can utilize people's face positional information of the camera collection caller of mobile terminal, utilize face recognition technology to identify the position of mouth, mouth is carried out to real-time tracking.Face recognition technology is widely used on intelligent mobile terminal, such as Android (android) system integrated this function on 4.0 versions.In practical operation, can but be not limited to only use mobile terminal front end camera, if mobile terminal has rear end camera, also can open use, the angle of surveyed area just can expand to 360 degree from 180 degree like this.But rear end camera pixel is conventionally higher, utilize rear end camera to carry out more power consumption of collection meeting.
In addition, also can by other technology, obtain caller's mouth positional information, for example, utilize speech recognition technology to identify caller, utilize acoustic ranging technology to determine that caller's mouth is with respect to the azimuth-range of mobile terminal.The present invention need to obtain caller's mouth with respect to the azimuth-range of mobile terminal, as for the means of obtaining and mode, does not need to limit.
Step S102, according to described mouth positional information, obtains two Mikes or many Mikes' radio reception region;
In this step, according to obtaining caller's mouth with respect to the azimuth-range of mobile terminal, utilize various noise reduction algorithm exactly, calculate the radio reception region of mobile terminal.At present, the mobile terminal that utilizes two Mikes to carry out noise reduction is a lot, and various noise reduction algorithms are also different, the present invention does not limit concrete noise reduction algorithm, for various noise reduction algorithms, as long as utilize caller's mouth positional information, can determine the radio reception region making new advances, just applicable the present invention.
In addition, some mobile terminals have occurred utilizing many Mikes (for example three Mikes) to determine radio reception region at present, radio reception better effects if, mobile terminal utilizes three Mikes to determine a more accurate radio reception region from three-dimensional angle, but at present, do not have mobile terminal to adjust radio reception region, therefore, the present invention utilizes three Mikes to carry out on the basis of noise reduction at it, by following the trail of the position of caller's mouth, adjust radio reception region, and then improve call tone quality.
Radio reception region in the present embodiment refers to that mobile terminal passes through the region of the collection caller voice messaging of noise reduction calculative determination, can be by the definite region of two Mike's noise reduction algorithms, can be also single Mike or the definite region of many Mikes.
Step S103, judges that whether described radio reception region has exceeded the acquiescence radio reception region that described mobile terminal sets in advance, and if so, is adjusted into described radio reception region the radio reception region of call; If not, using described acquiescence radio reception region as the radio reception region of conversing.
Mobile terminal is all provided with the radio reception region of acquiescence when dispatching from the factory, acquiescence radio reception region is set according to most telephone user's faces present position under normal circumstances, and acquiescence radio reception region is set needs early stage audio frequency commissioning staff to determine by a large amount of tests or emulation.In addition, after radio reception region is adjusted, the radio reception region after adjustment is exactly as carry out the acquiescence radio reception region of radio reception region adjustment next time, like this, just can guarantee real-time adjustment radio reception region continuously; When certainly, also can all use according to the definite radio reception region of caller's mouth at every turn and dispatching from the factory, the radio reception region of acquiescence compares.
During mobile terminal judgement, can judge that whether according to the definite radio reception region of caller's mouth, exceed the scope of giving tacit consent to radio reception region has surpassed predefined differentiation in different regions threshold value, if so, carries out the adjustment of radio reception region, if not, keep existing radio reception region for the radio reception region of call.
In addition, in step S101, camera collection may be individual people's face positional information, during this kind of situation, mobile terminal can be followed the trail of any people's face in pickup area, directly according to step S102, S103, processes; Also can carry out recognition of face, distinguish and whether follow the trail of fixedly people's face (for example people's face of mobile terminal owner); When setting in advance, be to follow the trail of fixedly people's face, and set in advance the people's face information that will follow the trail of, whether individual people's face that judges camera collection is to be preset in people's face of following the trail of in mobile terminal, if, the mouth positional information corresponding according to individual people's face of camera collection, the radio reception region that obtains two Mikes or many Mikes; All radio reception region of single Mike being collected if not, is as the radio reception region of call.
In step S101, camera collection may be also multiple people's face positional informations, during this kind of situation, that radio reception region should be adjusted is more wide, radio reception region corresponding to all people's mouth is included as far as possible, the poorest effect is to adopt single Mike to adopt sound, whole radio reception region is adjusted into the radio reception region of call, or all radio reception region that single Mike is collected is as the radio reception region of call that is:; Wherein, whole radio reception region comprises radio reception region corresponding to each mouth positional information in multiple people's faces.
In step S101, can also detect people's face translational speed of caller, when people's face translational speed of caller surpasses predefined threshold speed, cannot gather caller's mouth positional information, maybe cannot complete the adjusting operation in radio reception region, at this moment, that radio reception region can be adjusted is more extensive, for example, the maximum radio reception region that mobile terminal is supported is as the radio reception region of call, or adopt single Mike to carry out noise reduction, all radio reception region that single Mike is collected is as the radio reception region of call.When people's face translational speed of caller does not surpass (comprising this threshold value) predefined threshold speed, according to step S102, S103, process.
In addition, as shown in Figure 3, the invention still further relates to a kind of device of realizing the raising mobile terminal call tonequality of said method, comprising:
Mouth location information acquiring unit 201, for obtaining the mouth positional information of utilizing the user that mobile terminal converses;
Radio reception region acquiring unit 202, for according to mouth positional information, obtains two Mikes or many Mikes' radio reception region;
Mouth location information acquiring unit 201 is utilized the camera collection people face positional information of mobile terminal, according to people's face positional information, obtains mouth positional information, and wherein, mouth positional information comprises that mouth is with respect to direction and the distance of mobile terminal.
When camera collection be individual people's face positional information time, processing unit 203 judges whether individual people's face is to be preset in people's face of following the trail of in mobile terminal, if so, the mouth positional information corresponding according to individual people's face, the radio reception region that obtains two Mikes or many Mikes; All radio reception region of single Mike being collected if not, is as the radio reception region of call.
When camera collection be multiple people's face positional informations time, processing unit 203 is adjusted into whole radio reception region in the radio reception region of call, or all radio reception region that single Mike is collected is as the radio reception region of call; Wherein, whole radio reception region comprises radio reception region corresponding to each mouth positional information in multiple people's faces.
The embodiment of the present invention is the processing mode that terminal simulation is behaved and spoken, by two Mike's simulated dual ears, camera simulation eye, to " listen " and " seeing " combines, by " seeing ", judge the position of effective source of sound and noise source of sound, adjust in real time the parameter of " listening ", so just can effectively improve audio frequency tonequality.Specific implementation be exactly utilize current intelligent machine or panel computer itself with equipment (two Mikes and camera), in conjunction with face recognition technology (current most intelligent platforms are all to support that recognition of face just yes), according to face detection, go out mouth with respect to the change in location situation of mobile terminal, the region that new two Mikes catch sound is set, thus the tonequality of guarantor in communication process.The present invention has larger lifting to audio hands-free and three-section earphone call (three-section earphone itself does not have Mike's equipment, and call can only adopt the intrinsic Mike of terminal to receive sound).As can be seen here, the present invention is by checking the position of mouth, and then adjustment Mike's radio reception region, has improved the speech quality of mobile terminal, and can avoid outer descending sound region of putting, and can improve the echo of hand-free call and eliminate.
Although be example object, the preferred embodiments of the present invention are disclosed, it is also possible those skilled in the art will recognize various improvement, increase and replacement, therefore, scope of the present invention should be not limited to above-described embodiment.
Claims (10)
1. a method that improves mobile terminal call tonequality, is characterized in that, comprising:
Obtain the mouth positional information of utilizing the user that mobile terminal converses;
According to described mouth positional information, obtain two Mikes or many Mikes' radio reception region;
Judge that whether described radio reception region has exceeded the acquiescence radio reception region that described mobile terminal sets in advance, and if so, is adjusted into described radio reception region the radio reception region of call; If not, using described acquiescence radio reception region as the radio reception region of conversing.
2. the method for raising mobile terminal call tonequality as claimed in claim 1, is characterized in that, utilizes people's face positional information described in the camera collection of described mobile terminal, according to described people's face positional information, obtains described mouth positional information.
3. the method for raising mobile terminal call tonequality as claimed in claim 2, it is characterized in that, when described camera collection be individual people's face positional information time, whether described individual people's face of judgement is to be preset in people's face of following the trail of in mobile terminal, if, the mouth positional information corresponding according to described individual people's face, the radio reception region that obtains two Mikes or many Mikes; All radio reception region of single Mike being collected if not, is as the radio reception region of call.
4. the method for raising mobile terminal call tonequality as claimed in claim 2, it is characterized in that, when described camera collection be multiple people's face positional informations time, whole radio reception region is adjusted into the radio reception region of call, or all radio reception region that single Mike is collected is as the radio reception region of call; Wherein, described whole radio reception region comprises radio reception region corresponding to each mouth positional information in multiple people's faces.
5. the method for the raising mobile terminal call tonequality as described in claim 1 ~ 4 any one, is characterized in that,
Described mouth positional information comprises that mouth is with respect to direction and the distance of mobile terminal.
6. a device that improves mobile terminal call tonequality, is characterized in that, comprising:
Mouth location information acquiring unit, for obtaining the mouth positional information of utilizing the user that mobile terminal converses;
Radio reception region acquiring unit, for according to described mouth positional information, obtains two Mikes or many Mikes' radio reception region;
Processing unit, for judging that whether described radio reception region has exceeded the acquiescence radio reception region that described mobile terminal sets in advance, and if so, is adjusted into described radio reception region the radio reception region of call; If not, using described acquiescence radio reception region as the radio reception region of conversing.
7. the device of raising mobile terminal call tonequality as claimed in claim 6, it is characterized in that, described mouth location information acquiring unit is utilized people's face positional information described in the camera collection of described mobile terminal, according to described people's face positional information, obtains described mouth positional information.
8. the device of raising mobile terminal call tonequality as claimed in claim 7, it is characterized in that, when described camera collection be individual people's face positional information time, whether described individual people's face of judgement is to be preset in people's face of following the trail of in mobile terminal, if, the mouth positional information corresponding according to described individual people's face, the radio reception region that obtains two Mikes or many Mikes; All radio reception region of single Mike being collected if not, is as the radio reception region of call.
9. the device of raising mobile terminal call tonequality as claimed in claim 7, it is characterized in that, when described camera collection be multiple people's face positional informations time, whole radio reception region is adjusted into the radio reception region of call, or all radio reception region that single Mike is collected is as the radio reception region of call; Wherein, described whole radio reception region comprises radio reception region corresponding to each mouth positional information in multiple people's faces.
10. the device of the raising mobile terminal call tonequality as described in claim 6 ~ 9 any one, is characterized in that, described mouth positional information comprises that mouth is with respect to direction and the distance of mobile terminal.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210379489.9A CN103716446B (en) | 2012-10-09 | 2012-10-09 | A kind of method and device improving mobile terminal call tonequality |
| PCT/CN2013/077711 WO2013170802A1 (en) | 2012-10-09 | 2013-06-21 | Method and device for improving call voice quality of mobile terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210379489.9A CN103716446B (en) | 2012-10-09 | 2012-10-09 | A kind of method and device improving mobile terminal call tonequality |
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| Publication Number | Publication Date |
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| CN103716446A true CN103716446A (en) | 2014-04-09 |
| CN103716446B CN103716446B (en) | 2016-12-21 |
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| CN201210379489.9A Active CN103716446B (en) | 2012-10-09 | 2012-10-09 | A kind of method and device improving mobile terminal call tonequality |
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| WO (1) | WO2013170802A1 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104052886A (en) * | 2014-06-27 | 2014-09-17 | 联想(北京)有限公司 | Information processing method and electronic device |
| CN104320729A (en) * | 2014-10-09 | 2015-01-28 | 深圳市金立通信设备有限公司 | Pickup method |
| CN104410778A (en) * | 2014-10-09 | 2015-03-11 | 深圳市金立通信设备有限公司 | Terminal |
| CN106302974A (en) * | 2015-06-12 | 2017-01-04 | 联想(北京)有限公司 | A kind of method of information processing and electronic equipment |
| WO2022078291A1 (en) * | 2020-10-16 | 2022-04-21 | 华为技术有限公司 | Sound pickup method and sound pickup apparatus |
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| GB2215092A (en) * | 1988-01-30 | 1989-09-13 | Toshiba Kk | Control of microphone position to receive voice input |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104052886A (en) * | 2014-06-27 | 2014-09-17 | 联想(北京)有限公司 | Information processing method and electronic device |
| CN104052886B (en) * | 2014-06-27 | 2018-02-27 | 联想(北京)有限公司 | A kind of information processing method and electronic equipment |
| CN104320729A (en) * | 2014-10-09 | 2015-01-28 | 深圳市金立通信设备有限公司 | Pickup method |
| CN104410778A (en) * | 2014-10-09 | 2015-03-11 | 深圳市金立通信设备有限公司 | Terminal |
| CN106302974A (en) * | 2015-06-12 | 2017-01-04 | 联想(北京)有限公司 | A kind of method of information processing and electronic equipment |
| CN106302974B (en) * | 2015-06-12 | 2020-01-31 | 联想(北京)有限公司 | information processing method and electronic equipment |
| WO2022078291A1 (en) * | 2020-10-16 | 2022-04-21 | 华为技术有限公司 | Sound pickup method and sound pickup apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2013170802A1 (en) | 2013-11-21 |
| CN103716446B (en) | 2016-12-21 |
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