CN102314871A - De-noising method and de-noising device - Google Patents
De-noising method and de-noising device Download PDFInfo
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- CN102314871A CN102314871A CN2010102247693A CN201010224769A CN102314871A CN 102314871 A CN102314871 A CN 102314871A CN 2010102247693 A CN2010102247693 A CN 2010102247693A CN 201010224769 A CN201010224769 A CN 201010224769A CN 102314871 A CN102314871 A CN 102314871A
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- 238000000034 method Methods 0.000 title claims abstract description 17
- 230000001133 acceleration Effects 0.000 claims description 16
- 230000005236 sound signal Effects 0.000 abstract 2
- 208000035742 Air-borne transmission Diseases 0.000 abstract 1
- 230000005557 airborne transmission Effects 0.000 abstract 1
- 238000001914 filtration Methods 0.000 description 6
- 238000007493 shaping process Methods 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 2
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Abstract
The embodiment of the invention provides a de-noising method, which comprises the following steps of: acquiring a sound signal in air, wherein the sound signal comprises a mechanical noise signal and a voice signal; acquiring the mechanical vibration data of a microphone by using a sensor which is arranged in the microphone; performing operation according to the mechanical vibration data of the microphone, and thus obtaining a vibration characteristic signal, wherein the vibration characteristic signal comprises a vibration characteristic waveform; and eliminating the mechanical noise signal which is acquired by the microphone according to the obtained vibration characteristic signal. Correspondingly, the embodiment of the invention also provides the microphone. By adoption of the invention, the mechanical vibration of the microphone can be sensed by using the sensor which is arranged on the microphone, the vibration characteristic signal is obtained according to the mechanical vibration, and the mechanical noise signal which is generated by the mechanical vibration and brought by airborne transmission is eliminated, so the microphone can be de-noised.
Description
Technical field
The present invention relates to electronic technology field, relate in particular to a kind of noise-eliminating method and device.
Background technology
Existing noise cancellation technology is generally and on sound-producing device, eliminates airborne noise; But for microphone (Microphone; Claim microphone or microphone again); Especially be built in portable terminal or vehicle-mounted on microphone receive the noise that mechanical vibration bring through regular meeting, for example microphone itself is because some noises that the backguy, friction, shake, touch of device etc. cause, perhaps with the vibration of microphone fixing device or Device element together, shake, collision or the like; These noises are easy to differentiate; Ten minutes influences transaudient effect, but owing to can't separate the noise signal of normal voice signal and mechanical vibration generation, so the noise that causes owing to mechanical vibration that current microphone receives all is difficult to eliminate.
Summary of the invention
In view of this; The embodiment of the invention provides a kind of noise-eliminating method and device; Through the mechanical vibration of sensor sensing microphone are set on microphone; And the vibration characteristic signals that gets access to according to these mechanical vibration eliminates the mechanical noise signal that is brought by mechanical vibration, thereby realizes the de-noising of microphone.
The embodiment of the invention provides a kind of noise-eliminating method, and this noise-eliminating method comprises:
Obtain airborne voice signal, said voice signal comprises mechanical noise signal and voice signal;
Obtain the mechanical vibration data of said microphone through the built-in sensor of microphone;
Mechanical vibration data according to said microphone obtain vibration characteristic signals, said vibration characteristic signals involving vibrations signature waveform;
Said vibration characteristic signals according to obtaining is eliminated the mechanical noise signal that microphone gets access to.
The built-in sensor of said further microphone comprises acceleration transducer and/or gyroscope.
The embodiment of the invention provides a kind of microphone, and said microphone comprises:
Transaudient unit is used to obtain airborne voice signal, and said voice signal comprises mechanical noise signal and voice signal;
Sensing unit is used to obtain the mechanical vibration data of said microphone;
Arithmetic element is used for obtaining vibration characteristic signals according to the said mechanical vibration data operation that said sensing unit gets access to, said vibration characteristic signals involving vibrations signature waveform;
The noise eliminating unit is used for eliminating the mechanical noise signal that said transaudient unit gets access to according to the said vibration characteristic signals that said arithmetic element obtains.
Said further sensing unit can comprise acceleration transducer and/or gyroscope.
The embodiment of the invention is through being provided with the mechanical vibration of sensor sensing microphone on microphone; Obtain vibration characteristic signals and then eliminate the mechanical noise signal that produces and bring through air borne by mechanical vibration according to these mechanical vibration, thereby realize the de-noising of microphone.
Description of drawings
Fig. 1 is the composition structural representation of a kind of microphone in the embodiment of the invention;
Fig. 2 is the schematic flow sheet of a kind of noise-eliminating method in the embodiment of the invention.
Embodiment
To combine the accompanying drawing in the embodiment of the invention below, the technical scheme in the embodiment of the invention is carried out clear, intactly description, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.
Fig. 1 is the composition structural representation of a kind of microphone in the embodiment of the invention, and this microphone comprises:
Fig. 2 is the schematic flow sheet of a kind of noise-eliminating method in the embodiment of the invention, and this noise-eliminating method comprises:
Step S10 obtains airborne voice signal, and said voice signal comprises the mechanical noise signal; Also can comprise voice signal; Particularly, can pass through a built-in acoustic-electric conversion equipment of microphone, this acoustic-electric conversion equipment can be aluminium band type, moving-coil type, condenser type or electret formula etc.; Can airborne speech and the mechanical noise of comprising be converted into electric signal, be respectively voice signal and mechanical noise signal.
Step S20 obtains the mechanical vibration data of said microphone through the built-in sensor of microphone; Particularly, said microphone can through built-in acceleration transducer and/or gyroscope obtain said self by the mechanical vibration data that vibration produces, said mechanical vibration data can involving vibrations acceleration information and/or gyro data.These mechanical vibration are because microphone itself because the backguy of installing, friction, shake, touch etc. cause, perhaps causes with vibration, shake, the collision of microphone fixing device or Device element together and be connected through solid and conduct on the sensor.
Step S30 carries out computing according to the mechanical vibration data of said microphone and obtains vibration characteristic signals; In concrete the realization; Can be according to said mechanical vibration data; Involving vibrations acceleration information and/or gyro data are carried out computing and are obtained vibration characteristic signals; The amplitude and the frequency that for example can computing obtain vibrating according to the Changing Pattern of the accekeration of vibration acceleration data and acceleration, or equally can be according to amplitude and the frequency angular acceleration values of gyroscope output and that Changing Pattern can computing obtains vibrating, thereby said vibration characteristic signals obtained.The mechanical noise signal that said vibration characteristic signals correspondence is produced by this vibration,, said vibration characteristic signals involving vibrations signature waveform can also comprise the data such as amplitude, frequency and bandwidth of vibration.
Step S40 eliminates the mechanical noise signal that microphone gets access to according to the said vibration characteristic signals that obtains.Because said vibration characteristic signals and said mechanical noise signal all are the data-signals that obtains according to same vibration source vibration, therefore can use vibration characteristic signals to come said mechanical noise signal is offset.In concrete the realization, can earlier vibration characteristic signals be carried out filtering and shaping, will pass through the vibration characteristic signals of filtering and shaping then and carry out oppositely then importing adding circuit, thereby offset said mechanical noise signal with the voice signal that gets access to; Or directly will pass through filtering and shaping vibration characteristic signals, thereby offset said mechanical noise signal with the voice signal input subtraction circuit that gets access to.
The embodiment of the invention is through being provided with the mechanical vibration of sensor sensing microphone on microphone; Obtain vibration characteristic signals and then eliminate the mechanical noise signal that produces and bring through air borne by mechanical vibration according to these mechanical vibration, thereby realize the de-noising of microphone.Application scenarios of the present invention can include but not limited to: car phone, especially use the mechanical noise that can effectively remove vehicle motor or vehicle ' vibration generation under the hands-free situation of car phone; Wire microphone can effectively be removed the circuit that links to each other with microphone and equipment because the noise that backguy, friction cause etc.
Above disclosedly be merely a kind of preferred embodiment of the present invention; Certainly can not limit the present invention's interest field with this; One of ordinary skill in the art will appreciate that all or part of flow process that realizes the foregoing description; And, still belong to the scope that invention is contained according to the equivalent variations that claim of the present invention is done.
Description through the foregoing description; One of ordinary skill in the art will appreciate that all or part of flow process that realizes the foregoing description; Be to instruct relevant hardware to accomplish through computer program; Described program can be stored in the computer-readable medium, and this program can comprise the flow process like the embodiment of above-mentioned each side method when carrying out.Wherein, described storage medium can be magnetic disc, CD, read-only storage memory body (Read-Only Memory, ROM) or at random store memory body (Random Access Memory, RAM) etc.
Claims (4)
1. a noise-eliminating method is characterized in that, said noise-eliminating method comprises:
Obtain airborne voice signal, said voice signal comprises mechanical noise signal and voice signal;
Obtain the mechanical vibration data of said microphone through the built-in sensor of microphone;
Carry out computing according to the mechanical vibration data of said microphone and obtain vibration characteristic signals, said vibration characteristic signals involving vibrations signature waveform;
Said vibration characteristic signals according to obtaining is eliminated the mechanical noise signal that microphone gets access to.
2. noise-eliminating method as claimed in claim 1 is characterized in that, the built-in sensor of said microphone comprises acceleration transducer and/or gyroscope.
3. a microphone is characterized in that, said microphone comprises:
Transaudient unit is used to obtain airborne voice signal, and said voice signal comprises mechanical noise signal and voice signal;
Sensing unit is used to obtain the mechanical vibration data of said microphone;
Arithmetic element is used for obtaining vibration characteristic signals according to the said mechanical vibration data operation that said sensing unit gets access to, said vibration characteristic signals involving vibrations signature waveform;
The noise eliminating unit is used for eliminating the mechanical noise signal that said transaudient unit gets access to according to the said vibration characteristic signals that said arithmetic element obtains.
4. microphone as claimed in claim 3 is characterized in that said sensing unit comprises acceleration transducer and/or gyroscope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201010224769.3A CN102314871B (en) | 2010-07-09 | 2010-07-09 | De-noising method and de-noising device for mechanical noise of microphone |
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| CN201010224769.3A CN102314871B (en) | 2010-07-09 | 2010-07-09 | De-noising method and de-noising device for mechanical noise of microphone |
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| CN102314871A true CN102314871A (en) | 2012-01-11 |
| CN102314871B CN102314871B (en) | 2014-08-06 |
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Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102340719A (en) * | 2010-07-19 | 2012-02-01 | 廖明忠 | Method and device for acquiring sound signal based on sensor |
| CN104578895A (en) * | 2014-12-26 | 2015-04-29 | 黑龙江大学 | Damping type anti-noise closed-loop control device for window |
| WO2015196434A1 (en) * | 2014-06-26 | 2015-12-30 | 华为技术有限公司 | Noise reduction method and apparatus, and mobile terminal |
| CN105764006A (en) * | 2016-03-22 | 2016-07-13 | 瑞声声学科技(深圳)有限公司 | De-noising system and de-noising method thereof |
| CN105872930A (en) * | 2016-03-31 | 2016-08-17 | 歌尔声学股份有限公司 | Microphone testing equipment and microphone testing method capable of reducing interference vibration |
| CN107068164A (en) * | 2017-05-25 | 2017-08-18 | 北京地平线信息技术有限公司 | Acoustic signal processing method, device and electronic equipment |
| CN108735219A (en) * | 2018-05-09 | 2018-11-02 | 深圳市宇恒互动科技开发有限公司 | A kind of voice recognition control method and device |
| CN108755467A (en) * | 2018-05-28 | 2018-11-06 | 温州博旺联科建筑工程有限公司 | A kind of bridge gobo that soundproof effect is good |
| WO2018233010A1 (en) * | 2017-06-22 | 2018-12-27 | 歌尔股份有限公司 | Denoising method and apparatus |
| CN109165002A (en) * | 2018-07-09 | 2019-01-08 | Oppo广东移动通信有限公司 | Screen sounding method, device, electronic device and storage medium |
| CN109495806A (en) * | 2018-12-24 | 2019-03-19 | 歌尔股份有限公司 | A kind of earphone noise reduction system and method, earphone, computer equipment and medium |
| CN110062083A (en) * | 2019-05-27 | 2019-07-26 | 维沃移动通信有限公司 | A noise canceling method and mobile terminal |
| WO2019205049A1 (en) * | 2018-04-26 | 2019-10-31 | 深圳市韶音科技有限公司 | Vibration removal apparatus and method for dual-microphone earphones |
| CN110418225A (en) * | 2018-04-26 | 2019-11-05 | 深圳市韶音科技有限公司 | a microphone device |
| CN110553810A (en) * | 2019-07-23 | 2019-12-10 | 北京控制工程研究所 | satellite-borne variable-speed CMG micro-vibration noise suppression method |
| CN110621204A (en) * | 2017-06-07 | 2019-12-27 | 凯伍德有限公司 | Kitchen appliance and corresponding system |
| CN110933557A (en) * | 2019-12-16 | 2020-03-27 | 歌尔股份有限公司 | Microphone echo eliminating method, device, equipment and computer storage medium |
| WO2022116644A1 (en) * | 2020-12-04 | 2022-06-09 | 中兴通讯股份有限公司 | Anti-vibration sound reception device, terminal, signal processing method, and signal processing module |
| US11509994B2 (en) | 2018-04-26 | 2022-11-22 | Shenzhen Shokz Co., Ltd. | Vibration removal apparatus and method for dual-microphone earphones |
| US11540057B2 (en) | 2011-12-23 | 2022-12-27 | Shenzhen Shokz Co., Ltd. | Bone conduction speaker and compound vibration device thereof |
| US11950055B2 (en) | 2014-01-06 | 2024-04-02 | Shenzhen Shokz Co., Ltd. | Systems and methods for suppressing sound leakage |
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| WO2010032517A1 (en) * | 2008-09-18 | 2010-03-25 | 本田技研工業株式会社 | Active noise control device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102340719A (en) * | 2010-07-19 | 2012-02-01 | 廖明忠 | Method and device for acquiring sound signal based on sensor |
| US11540057B2 (en) | 2011-12-23 | 2022-12-27 | Shenzhen Shokz Co., Ltd. | Bone conduction speaker and compound vibration device thereof |
| US11950055B2 (en) | 2014-01-06 | 2024-04-02 | Shenzhen Shokz Co., Ltd. | Systems and methods for suppressing sound leakage |
| CN105474306A (en) * | 2014-06-26 | 2016-04-06 | 华为技术有限公司 | Noise reduction method and apparatus, and mobile terminal |
| US10089972B2 (en) | 2014-06-26 | 2018-10-02 | Huawei Technologies Co., Ltd. | Noise reduction method and apparatus, and mobile terminal |
| WO2015196434A1 (en) * | 2014-06-26 | 2015-12-30 | 华为技术有限公司 | Noise reduction method and apparatus, and mobile terminal |
| CN104578895A (en) * | 2014-12-26 | 2015-04-29 | 黑龙江大学 | Damping type anti-noise closed-loop control device for window |
| CN105764006A (en) * | 2016-03-22 | 2016-07-13 | 瑞声声学科技(深圳)有限公司 | De-noising system and de-noising method thereof |
| CN105872930A (en) * | 2016-03-31 | 2016-08-17 | 歌尔声学股份有限公司 | Microphone testing equipment and microphone testing method capable of reducing interference vibration |
| CN107068164A (en) * | 2017-05-25 | 2017-08-18 | 北京地平线信息技术有限公司 | Acoustic signal processing method, device and electronic equipment |
| US11406224B2 (en) | 2017-06-07 | 2022-08-09 | Kenwood Limited | Kitchen appliance and system therefor |
| CN110621204A (en) * | 2017-06-07 | 2019-12-27 | 凯伍德有限公司 | Kitchen appliance and corresponding system |
| US11328736B2 (en) | 2017-06-22 | 2022-05-10 | Weifang Goertek Microelectronics Co., Ltd. | Method and apparatus of denoising |
| WO2018233010A1 (en) * | 2017-06-22 | 2018-12-27 | 歌尔股份有限公司 | Denoising method and apparatus |
| WO2019205049A1 (en) * | 2018-04-26 | 2019-10-31 | 深圳市韶音科技有限公司 | Vibration removal apparatus and method for dual-microphone earphones |
| CN112055973A (en) * | 2018-04-26 | 2020-12-08 | 深圳市韶音科技有限公司 | Device and method for removing vibration of double-microphone earphone |
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| US11509994B2 (en) | 2018-04-26 | 2022-11-22 | Shenzhen Shokz Co., Ltd. | Vibration removal apparatus and method for dual-microphone earphones |
| US12069424B2 (en) | 2018-04-26 | 2024-08-20 | Shenzhen Shokz Co., Ltd. | Vibration removal apparatus and method for dual-microphone earphones |
| CN112637736B (en) * | 2018-04-26 | 2022-05-03 | 深圳市韶音科技有限公司 | Earphone system and microphone device thereof |
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| CN110418225A (en) * | 2018-04-26 | 2019-11-05 | 深圳市韶音科技有限公司 | a microphone device |
| CN112637736A (en) * | 2018-04-26 | 2021-04-09 | 深圳市韶音科技有限公司 | Earphone system and microphone device thereof |
| CN112637737A (en) * | 2018-04-26 | 2021-04-09 | 深圳市韶音科技有限公司 | Earphone system |
| CN112637738A (en) * | 2018-04-26 | 2021-04-09 | 深圳市韶音科技有限公司 | Earphone system |
| JP2021521486A (en) * | 2018-04-26 | 2021-08-26 | 深▲セン▼市韶音科技有限公司 | Vibration elimination device and method for dual microphone earphones |
| CN112637737B (en) * | 2018-04-26 | 2021-11-30 | 深圳市韶音科技有限公司 | Earphone system |
| US11350205B2 (en) | 2018-04-26 | 2022-05-31 | Shenzhen Shokz Co., Ltd. | Vibration removal apparatus and method for dual-microphone earphones |
| CN108735219A (en) * | 2018-05-09 | 2018-11-02 | 深圳市宇恒互动科技开发有限公司 | A kind of voice recognition control method and device |
| CN108755467B (en) * | 2018-05-28 | 2020-03-27 | 温州博旺联科建筑工程有限公司 | Bridge sound insulation screen with good sound insulation effect |
| CN108755467A (en) * | 2018-05-28 | 2018-11-06 | 温州博旺联科建筑工程有限公司 | A kind of bridge gobo that soundproof effect is good |
| CN109165002B (en) * | 2018-07-09 | 2022-01-11 | Oppo广东移动通信有限公司 | Screen sounding method, device, electronic device and storage medium |
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| CN110062083A (en) * | 2019-05-27 | 2019-07-26 | 维沃移动通信有限公司 | A noise canceling method and mobile terminal |
| CN110553810A (en) * | 2019-07-23 | 2019-12-10 | 北京控制工程研究所 | satellite-borne variable-speed CMG micro-vibration noise suppression method |
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