CN101227758A - Method for eliminating noise of audio equipment and audio equipment with silencing apparatus using the method - Google Patents
Method for eliminating noise of audio equipment and audio equipment with silencing apparatus using the method Download PDFInfo
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- CN101227758A CN101227758A CNA2007100074768A CN200710007476A CN101227758A CN 101227758 A CN101227758 A CN 101227758A CN A2007100074768 A CNA2007100074768 A CN A2007100074768A CN 200710007476 A CN200710007476 A CN 200710007476A CN 101227758 A CN101227758 A CN 101227758A
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- audio frequency
- frequency apparatus
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- glasses
- ambient noise
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Abstract
An audio device with a mute device is a pair of glasses, which comprises a front frame with eyeglass and legs of glasses, an MP3 music player, a bluetooth module and the mute device are installed inside the legs of glasses, the mute device comprises a microphone, a mute circuit, a headphone which is connected with a headphone wire, and thereby a user can listen to and enjoy music only by wearing the glasses and can transmit data information through being used in pair with exterior bluetooth equipment, such as the user can answering and dialing a call through being used in pair with a bluetooth mobile phone, which is very convenient. The microphone can collect exterior noise signals and can transmit the signals to the mute circuit to process when the user listens to and enjoys music or when the user answers and dials a call, a offset signal is produced which is offset with exterior voices which directly are transmitted into ears of the user, which has better sound receiving effects and prevents from exterior environment. The user not only can listen to music clearly but also can guarantee clear sound receiving effects under noise environment.
Description
Technical field
The present invention relates to audio area, particularly a kind of audio frequency apparatus.The invention still further relates to a kind of glasses.
Background technology
At present, human society is in the epoch of high speed development, especially aspect high-tech electronic, such as audio frequency apparatus, walkman music player miscellaneous (MP3 music player, MD music player) has appearred on the market, allow the user can listen to carving at any time, music appreciating, and it is easy to carry, consumers in general's needs have been satisfied, but when these walkman music players used, consumer portion kept away and unavoidably is subjected to surrounding environment interference in various degree, influences audibility, if can't listen to especially under noisy environments, music appreciating, noiseproof feature is poor.And very popular bluetooth earphone on the present market, but these earphones are all the same with aforementioned walkman music player, and Noise Resistance Ability is poor, and sound quality can't be ensured.
Summary of the invention
The objective of the invention is to, a kind of method of canceling noise of audio frequency apparatus is provided and adopts the audio frequency apparatus of the band silencing apparatus of this method.
The objective of the invention is to be achieved through the following technical solutions:
A kind of method of canceling noise of audio frequency apparatus, loud speaker sends the sound of audio frequency apparatus to ear, gather ambient noise by noise gathering equipment, this ambient noise forms an offseting signal opposite with the ambient noise phase place after Phase Processing, described offseting signal sends described loud speaker to the sound of audio frequency apparatus output, by loud speaker described offseting signal that provides and the ambient noise signal cancellation of directly being gathered by ear;
Ambient noise by the collection of noise gathering equipment sends amplifying circuit to, filter circuit sends the Phase Processing circuit to after filtering through the ambient noise signal after amplifying, the Phase Processing circuit phase difference of noise signal is to external world regulated, and forms an offseting signal that the phase place with the ambient noise signal is opposite, amplitude equates;
Send loud speaker to after also having mixer circuit that the sound of the offseting signal that receives and audio frequency apparatus is made up;
Described filter circuit is a bandwidth-limited circuit, and the ambient noise signal that allows to meet certain frequency band range passes through; Frequency band range is 20Hz ~ 20KHz;
Described audio frequency apparatus is selected from least a in music player, blue-tooth device, the broadcast receiver, and described loud speaker is an earphone, and described noise gathering equipment is pick-up;
Described audio frequency apparatus is made of glasses, two mirror legs of described glasses are connected with earphone respectively, also are provided with rechargeable battery in one of them mirror leg, are provided with described audio frequency apparatus in another mirror leg, described pick-up is a microphone, is located near near the mirror shank branch the wearer's ear.
A kind of audio frequency apparatus with silencing apparatus, described audio frequency apparatus is provided with loud speaker, and described audio frequency apparatus also is provided with silencing apparatus, and described silencing apparatus includes noise gathering equipment, amplifier, filter, Phase Processing device;
Described silencing apparatus also includes the audio mixing processor, and described audio mixing processor connects described loud speaker;
Described filter is a band pass filter;
Described audio frequency apparatus is selected from least a in music player, blue-tooth device, the broadcast receiver, and described loud speaker is an earphone, and described noise gathering equipment is pick-up;
Described audio frequency apparatus is made of glasses, two mirror legs of described glasses are connected with the described silencing apparatus of earphone and corresponding setting with each earphone respectively, also be provided with rechargeable battery in one of them mirror leg, be provided with described audio frequency apparatus in another mirror leg, be located near near the mirror shank branch the wearer's ear as the microphone of pick-up;
The Jing Tuichu of described glasses also is connected with the microphone as conversation or recording.
Beneficial effect of the present invention has: heave at the mirror leg of glasses and be provided with MP3 music player and bluetooth module in the housing, and be connected with earphone with earphone cord, like this, these glasses can be listened to as long as the user wears, music appreciating, use with outside bluetooth equipment pairing, can carry out data information transfer, as: use with the bluetooth cellular phone pairing, can answer, call, very convenient.Also be provided with silencing apparatus in the mirror leg, include the microphone that is used to collect ambient noise, amplifying circuit, bandwidth-limited circuit, Phase Processing circuit and mixer circuit, like this, use glasses of the present invention to listen to, music appreciating, or answer, when calling, after microphone is passed to the mute circuit processing with the ambient noise signal of collecting, producing offseting signal offsets with the ambient noise that directly imports user's ear into, the radio reception effect is better, be not affected by the external environment, the user can in so many words listen to music, even radio reception effect is clearly also ensured under noisy environments.And microphone is located near near the ear, and the ambient noise signal of its collection is more similar to the acoustic characteristic of directly importing ear ambient noise signal into, and the offseting signal of mute circuit generation is more accurate, quiet better effects if.
Description of drawings
Fig. 1 is the structural representation of the audio frequency apparatus of band silencing apparatus of the present invention.
Fig. 2 is the operation principle schematic diagram of the audio frequency apparatus of band silencing apparatus of the present invention.
The copyright of above-mentioned Figure of description and other any right all belong to the applicant to be owned.
Embodiment
The invention will be further described to reach specific embodiment now in conjunction with the accompanying drawings.
As shown in Figure 1, the audio frequency apparatus of band silencing apparatus of the present invention is an a pair of glasses, and these glasses include preceding frame 1, left mirror leg 2, the right mirror leg 3 of band eyeglass.Left mirror leg 2 and right mirror leg 3 front ends be respectively equipped with outwards rise heave housing 21, heave housing 31, wherein, heave in the housing 21 and the charged lithium cells 22 that is used for supplying with working power is installed with circuit board, heave in the housing 31 and MP3 music player main frame 32 is installed with circuit board, bluetooth module 33, described MP3 music player main frame 32 includes the MP3 chip, flash chip, its operation principle is identical with existing MP3 player, be not described in detail, described bluetooth module 33 is Bluetooth chips, include bluetooth wireless transceiver, the bluetooth baseband controller, memory etc., its operation principle is identical with existing Bluetooth chip (being bluetooth module), is not described in detail.Be equipped with in the groove that preceding frame 1 inboard is provided with and be used to connect the lead 4 of establishing circuit board in left mirror leg 2, the right mirror leg 3, left mirror leg 2, right mirror leg 3 also are respectively equipped with earphone 5 and are used for fixing the hook 6 of this earphone 5, earphone 5 is connected to establish circuit board in telescopic earphone cord 51 and the mirror leg, hook 6 is located at the mirror leg end outside, the slotted hole that earphone 5 is provided with is enclosed within on the hook 6, is promptly fixed.Like this, these glasses can be listened to as long as the user wears, music appreciating, use with outside bluetooth equipment pairing, can carry out data information transfer, as: use with the bluetooth cellular phone pairing, can answer, call, very convenient.Left mirror leg 2, also be respectively equipped with the silencing apparatus of forming by microphone 7 and mute circuit 8 in the right mirror leg 3, microphone 7 is mainly used in collects the ambient noise signal, mute circuit 8 includes amplifying circuit, bandwidth-limited circuit, Phase Processing circuit and mixer circuit, be mainly used in the ambient noise conversion of signals of will collect and become an offseting signal, like this, use glasses of the present invention to listen to, music appreciating, or answer, when calling, after microphone 7 is passed to mute circuit 8 processing with the ambient noise signal of collecting, producing offseting signal offsets with the ambient noise that directly imports user's ear into, listen to, it is better to answer effect, is not affected by the external environment.Microphone 7 is located near near the ear, and the ambient noise signal of its collection is more similar to the acoustic characteristic of directly importing ear ambient noise signal into, and the offseting signal that mute circuit 8 produces is more accurate, quiet better effects if.Left mirror leg 2 front ends heave also be provided with in the housing 21 be used to charge, the USB interface 23 of transfer of data, right mirror leg 3 front ends are heaved and also are provided with another in the housing 31 and are used to the microphone 34 of recording, talking with, also be provided with on left mirror leg 2, the right mirror leg 3 be used for finishing playing back music, stop to play, volume increases/reduces, the function control button (figure does not show) of recording, answer/make phone etc.
As shown in Figure 2, the audio frequency apparatus of band silencing apparatus of the present invention includes audio devices, silencing apparatus and loud speaker, and audio devices is mainly used in reception, playing audio signal, as MP3 music player or MD music player; Silencing apparatus includes pick-up (as microphone) 7, and by amplifying circuit 81, bandwidth-limited circuit 82, the mute circuit that Phase Processing circuit 83 and mixer circuit 84 are formed, wherein, pick-up 7 as noise gathering equipment is mainly used in collection ambient noise signal, amplifying circuit 81 (amplifier) mainly is responsible for the ambient noise signal that pick-up 7 is collected is amplified, bandwidth-limited circuit 82 (filter) mainly is responsible for the ambient noise signal after amplifying through amplifying circuit 81 is filtered, Phase Processing circuit 83 (Phase Processing device) mainly is responsible for regulating the phase difference of the ambient noise signal after filtering, form an offseting signal, mixer circuit 84 (audio mixing processor) mainly is responsible for the offseting signal and the audio signal that form are made up, superposition.When operation audio frequency apparatus of the present invention, audio devices receives, playing audio signal (music), simultaneously, the pick-up 7 of silencing apparatus promptly begins to collect the ambient noise signal, and send amplifying circuit 81 to, after amplifying, the ambient noise signal of 81 pairs of these collections of amplifying circuit sends bandwidth-limited circuit 82 to, ambient noise signal after 82 pairs of these amplifications of bandwidth-limited circuit filters that (the ambient noise signal that allows to meet certain frequency band range passes through then, as 20Hz ~ 20KHz), and send the ambient noise signal that filters out to Phase Processing circuit 83, the phase difference of the ambient noise signal after 83 pairs of filtrations of Phase Processing circuit is regulated, it is just in time opposite to form the phase place with the ambient noise signal, the offseting signal that amplitude equates, send this offseting signal to mixer circuit 84 again, mixer circuit 84 sent the audio signal combination of adopting with this offseting signal and audio devices, superposition together, after loud speaker imports mixed signal into ear.Like this, after this mixed signal was imported ear into, the offseting signal of its mixing promptly offseted with the ambient noise signal that directly imports ear into, not influenced by ambient noise, the user is listening to audio signal (music) in so many words, even radio reception effect is clearly also ensured under noisy environments.
Certainly, audio frequency apparatus of the present invention can be the MP3 music player, can be bluetooth earphone, can also be audio signal reception device (FM device), and correspondingly, loud speaker respectively can outputting music, mobile phone communication voice, broadcast program etc.Described silencing apparatus also can adopt the bandwidth-limited circuit of other type.
Claims (13)
1. the method for canceling noise of an audio frequency apparatus, loud speaker sends the sound of audio frequency apparatus to ear, it is characterized in that: gather ambient noise by noise gathering equipment, this ambient noise forms an offseting signal opposite with the ambient noise phase place after Phase Processing, described offseting signal sends described loud speaker to the sound of audio frequency apparatus output, by loud speaker described offseting signal that provides and the ambient noise signal cancellation of directly being gathered by ear.
2. the method for canceling noise of audio frequency apparatus according to claim 1, it is characterized in that: the ambient noise by the collection of noise gathering equipment sends amplifying circuit to, filter circuit sends the Phase Processing circuit to after filtering through the ambient noise signal after amplifying, the Phase Processing circuit phase difference of noise signal is to external world regulated, and forms an offseting signal that the phase place with the ambient noise signal is opposite, amplitude equates.
3. the method for canceling noise of audio frequency apparatus according to claim 2 is characterized in that: send loud speaker to after also having mixer circuit that the sound of the offseting signal that receives and audio frequency apparatus is made up.
4. the method for canceling noise of audio frequency apparatus according to claim 2, it is characterized in that: described filter circuit is a bandwidth-limited circuit, the ambient noise signal that allows to meet certain frequency band range passes through.
5. the method for canceling noise of audio frequency apparatus according to claim 4, it is characterized in that: frequency band range is 20Hz ~ 20KHz.
6. according to the method for canceling noise of any one described audio frequency apparatus of claim 1 to 5, it is characterized in that: described audio frequency apparatus is selected from least a in music player, blue-tooth device, the broadcast receiver, described loud speaker is an earphone, and described noise gathering equipment is pick-up.
7. the method for canceling noise of audio frequency apparatus according to claim 6, it is characterized in that: described audio frequency apparatus is made of glasses, two mirror legs of described glasses are connected with earphone respectively, also be provided with rechargeable battery in one of them mirror leg, be provided with described audio frequency apparatus in another mirror leg, described pick-up is a microphone, is located near near the mirror shank branch the wearer's ear.
8. audio frequency apparatus with silencing apparatus, it is characterized in that: described audio frequency apparatus is provided with loud speaker, and described audio frequency apparatus also is provided with silencing apparatus, and described silencing apparatus includes noise gathering equipment, amplifier, filter, Phase Processing device.
9. the audio frequency apparatus of band silencing apparatus according to claim 8 is characterized in that: described silencing apparatus also includes the audio mixing processor, and described audio mixing processor connects described loud speaker.
10. the audio frequency apparatus of band silencing apparatus according to claim 8 is characterized in that: described filter is a band pass filter.
11. the audio frequency apparatus of band silencing apparatus according to claim 9 is characterized in that: described audio frequency apparatus is selected from least a in music player, blue-tooth device, the broadcast receiver, and described loud speaker is an earphone, and described noise gathering equipment is pick-up.
12. the audio frequency apparatus of band silencing apparatus according to claim 11, it is characterized in that: described audio frequency apparatus is made of glasses, two mirror legs of described glasses are connected with the described silencing apparatus of earphone and corresponding setting with each earphone respectively, also be provided with rechargeable battery in one of them mirror leg, be provided with described audio frequency apparatus in another mirror leg, be located near near the mirror shank branch the wearer's ear as the microphone of pick-up.
13. the audio frequency apparatus of band silencing apparatus according to claim 12 is characterized in that: the Jing Tuichu of described glasses also is connected with the microphone as conversation or recording.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100074768A CN101227758A (en) | 2007-01-15 | 2007-01-15 | Method for eliminating noise of audio equipment and audio equipment with silencing apparatus using the method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100074768A CN101227758A (en) | 2007-01-15 | 2007-01-15 | Method for eliminating noise of audio equipment and audio equipment with silencing apparatus using the method |
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| CN101227758A true CN101227758A (en) | 2008-07-23 |
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| CNA2007100074768A Pending CN101227758A (en) | 2007-01-15 | 2007-01-15 | Method for eliminating noise of audio equipment and audio equipment with silencing apparatus using the method |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011113341A1 (en) * | 2010-03-18 | 2011-09-22 | 华为终端有限公司 | Audio apparatus capable of noise reduction and mobile telephone capable of noise reduction |
| CN103873975A (en) * | 2014-03-20 | 2014-06-18 | 深圳市中兴移动通信有限公司 | Bluetooth headset noise reduction method, device and system |
| CN104299607A (en) * | 2013-07-15 | 2015-01-21 | Ge医疗系统环球技术有限公司 | Active noise reduction apparatus and method for computed tomography equipment |
| CN106507237A (en) * | 2016-12-26 | 2017-03-15 | 大连理工大学 | A kind of light Anti-fall earphone |
| CN108916951A (en) * | 2018-03-08 | 2018-11-30 | 佛山市云米电器科技有限公司 | A kind of kitchen ventilator and noise-reduction method with Enclosed Sound Field denoising device |
| WO2020206775A1 (en) * | 2019-04-12 | 2020-10-15 | 深圳市广扬科技有限公司 | Near-ear directional sound output structure, and audio glasses |
| CN112203178A (en) * | 2020-09-23 | 2021-01-08 | 江苏视天虚拟现实科技有限公司 | XR glasses and noise reduction method |
-
2007
- 2007-01-15 CN CNA2007100074768A patent/CN101227758A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011113341A1 (en) * | 2010-03-18 | 2011-09-22 | 华为终端有限公司 | Audio apparatus capable of noise reduction and mobile telephone capable of noise reduction |
| CN104299607A (en) * | 2013-07-15 | 2015-01-21 | Ge医疗系统环球技术有限公司 | Active noise reduction apparatus and method for computed tomography equipment |
| CN103873975A (en) * | 2014-03-20 | 2014-06-18 | 深圳市中兴移动通信有限公司 | Bluetooth headset noise reduction method, device and system |
| WO2015139642A1 (en) * | 2014-03-20 | 2015-09-24 | 努比亚技术有限公司 | Bluetooth headset noise reduction method, device and system |
| CN103873975B (en) * | 2014-03-20 | 2016-11-23 | 努比亚技术有限公司 | A kind of methods, devices and systems realizing bluetooth earphone noise reduction |
| CN106507237A (en) * | 2016-12-26 | 2017-03-15 | 大连理工大学 | A kind of light Anti-fall earphone |
| CN108916951A (en) * | 2018-03-08 | 2018-11-30 | 佛山市云米电器科技有限公司 | A kind of kitchen ventilator and noise-reduction method with Enclosed Sound Field denoising device |
| WO2020206775A1 (en) * | 2019-04-12 | 2020-10-15 | 深圳市广扬科技有限公司 | Near-ear directional sound output structure, and audio glasses |
| CN112203178A (en) * | 2020-09-23 | 2021-01-08 | 江苏视天虚拟现实科技有限公司 | XR glasses and noise reduction method |
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Open date: 20080723 |