CN103517186A - Audio acquiring device and audio recording device - Google Patents
Audio acquiring device and audio recording device Download PDFInfo
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- CN103517186A CN103517186A CN201210212666.4A CN201210212666A CN103517186A CN 103517186 A CN103517186 A CN 103517186A CN 201210212666 A CN201210212666 A CN 201210212666A CN 103517186 A CN103517186 A CN 103517186A
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Abstract
The present invention discloses an audio acquiring device and an audio recording device, wherein, the audio acquiring device comprises the following components: a left earphone body; a right earphone body; a first microphone which is arranged on the left earphone body; a second microphone which is arranged on the right earphone body; and an interface component which has a first end that is respectively connected with the first microphone and the second microphone and a second end that is used for connecting with external equipment. Through the audio acquiring device of the invention, a problem of incapability of realizing stereo field perception by human ears in the prior-art audio acquiring device is settled, and furthermore an effect of improving stereo field perception degree by the human ears is obtained.
Description
Technical field
The present invention relates to field of information processing, in particular to a kind of audio collecting device and voice recorder.
Background technology
The tradition way of recording comprises single Mike's recording, stereophonic recording (AB, XY, MS, ORTF).Fig. 1 a is the schematic appearance of carrying out the single microphone that uses when single Mike records in prior art, Fig. 1 b to Fig. 1 e conventional directive property configuration while being single microphone recording, although single Mike recording is the easiest, sound field is also dull; For this reason, the equipment that carries out stereophonic recording is also provided in prior art, Fig. 2 a is the schematic appearance of the AB microphone that uses while carrying out stereophonic recording in prior art, and Fig. 2 b is that AB microphone relies on the range attenuation of sound field to realize the schematic diagram that stereophonic field is recorded.Fig. 3 a is the schematic appearance of the XY microphone that uses while carrying out stereophonic recording in prior art, and Fig. 3 b is that XY microphone relies on heart type directive property to realize the schematic diagram that stereophonic field is recorded.Fig. 4 a is the schematic appearance of the MS microphone that uses while carrying out stereophonic recording in prior art, and Fig. 4 b is that MS microphone relies on complete point to and diplocardia type microphone is realized the schematic diagram that zeroth order and single order sound field are recorded.Fig. 5 a is the schematic appearance of the ORTF microphone that uses while carrying out stereophonic recording in prior art, and Fig. 5 b is that ORTF microphone arrangement realizes with distance and directive property the schematic diagram that stereo sound field is recorded simultaneously.Fig. 6 a is the schematic appearance of the emulation number of people microphone that uses while carrying out stereophonic recording in prior art, and Fig. 6 b is that emulation number of people microphone relies on contouring head and auricle to realize the schematic diagram to the simulation of auditory perceptual.The original intention of stereophonic recording is to build the more stereophonic field of horn of plenty, in microphone arrangement, also there is diversified mode, all the apperceive characteristic of two ears to sound of attempting to simulate people, such as time delay, amplitude difference, phase place etc., yet by microphone putting position, be to be just difficult to reach the real auditory perceptual of simulation.Emulation number of people recording energy is enough realized the embodiment true to nature of immersion three-dimensional sound field, but being mainly still present at present some specialized laboratories uses as testing tool, for audio frequency and video widely, record, the one, be very inconvenient to use, also simultaneously very expensive (to comprise the emulation number of people, sound pick-up outfit, 1,000,000 Euros of left and right of a set of needs such as treatment facility), in addition, the current emulation number of people is mainly used in the test of the communication apparatus, be not intended to that the object of people's ear stereophonic field perception makes, its quality, still there is very large difference with the true number of people in structure, these differences can finally affect the sound field effect of recording.
On the other hand, fast development along with mobile broadband, the mobile phone of ordinary consumer, the common tools such as panel computer have had audio frequency and video to record ability except making a phone call, and a lot of digital products is such as recording pen, the cameras that can make a video recording etc. in most cases these equipment all carry out recorded voice based on internal microphone, tonequality is poor on the one hand for these built-in microphones, sound field represents also non-constant of ability simultaneously, in Fig. 7, illustrated and there is the mobile phone that monophonic audio is recorded ability, because the energy of human speech signal more than 99% is all present within the scope of 300～4000Hz arrowband, and voice in fact, in song, also comprise abundant low frequency, high-frequency signal, in these signals and physical world, more rich and varied (20hz ~ 22Khz) signal from low frequency to high frequency is to form the necessary element of immersion sound field.The internal microphone such as mobile phone, camera, recording pen are all around the application design of the arrowband scenes such as call, voice conventionally, therefore for low frequency (<300Hz), high frequency (>4 ~ 8Khz) respond very poorly, therefore fundamentally lack the signal source that reappears high-quality sound field; In passband frequency range, the frequency response of common internal microphone is very uneven on the other hand, causes its tone color to be difficult to rediscover sound.Also occurred at present providing recording technology stereo or binary channels recording for mobile phone etc., generally there are two kinds of methods, the one, still adopt the embedded mode recording stereos such as mobile phone, embedded twin-channel microphone location has been shown in Fig. 8, (in Fig. 8, two embedded microphones illustrate by 81 and 82 for the general employing of this method and similar two microphones of voice call, 81 represent main microphone, 82 vice microphones) be embedded in mobile phone, the microphone one of this configuration is that frequency response performance is not good, simultaneously due to directive property, the problems such as the inner sound leakage such as mobile phone, cause the recorded sound field sense of reality very poor, another kind method is that the interface equipment of stereophonic recording is provided for equipment such as mobile phones, in Fig. 9 a and 9b, show respectively mobile phone and the camera of the stereophony microphone peripheral configuration possessing, the method has in fact partly solved the problem of embedded microphone, and the external microphone that adopts XY to configure, microphone itself adopts Whole frequency band microphone, and XY configuration simultaneously has also brought with respect to the better stereophonic field of embedded microphone.But these equipment interfaces also have very large distance from above-mentioned professional stereophony microphone, let alone immersion three-dimensional sound field.
For the audio collecting device in correlation technique, cannot realize the problem of people's ear stereophonic field perception, not yet propose at present effective solution.
Summary of the invention
Main purpose of the present invention is to provide a kind of audio collecting device and voice recorder, cannot realize the problem of people's ear stereophonic field perception to solve audio collecting device of the prior art.
To achieve these goals, according to an aspect of the present invention, provide a kind of audio collecting device, having comprised: left earphone body; Right earphone body; The first microphone, is arranged on left earphone body; Second microphone, is arranged on right earphone body; And interface unit, first end is connected respectively with second microphone with the first microphone, and the second end is used for connecting external equipment.
Further, interface unit comprises: the first binding post, and the first end of the first binding post is connected with the audio output of the first microphone, and the second end of the first binding post is used for connecting external equipment; The second binding post, the first end of the second binding post is connected with the audio output of second microphone, and the second end of the second binding post is used for connecting external equipment; And the 3rd binding post, the first end of the 3rd binding post is connected respectively with the earth terminal of the first microphone and the earth terminal of second microphone, and the second end of the 3rd binding post is used for connecting earth signal.
Further, audio collecting device also comprises: left earphone, is arranged on left earphone body, and is connected with the first end of interface unit; And right earphone, be arranged on right earphone body, and be connected with the first end of interface unit.
Further, interface unit comprises: first interface parts, and the first end of first interface parts is connected respectively with second microphone with the first microphone, and the second end of first interface parts is for connecting the audio input end of external equipment; And second interface unit, the first end of the second interface unit is connected respectively with right earphone with left earphone, and the second end of the second interface unit is for connecting the audio output of external equipment.
Further, first interface parts comprise: the first binding post, and the first end of the first binding post is connected with the audio output of the first microphone, and the second end of the first binding post is for connecting the first audio input end of external equipment; The second binding post, the first end of the second binding post is connected with the audio output of second microphone, and the second end of the second binding post is for connecting the second audio input end of external equipment; And the 3rd binding post, the first end of the 3rd binding post is connected respectively with the earth terminal of the first microphone and the earth terminal of second microphone, the second end of the 3rd binding post is used for connecting earth signal, the second interface unit comprises: the 4th binding post, the 4th first end of binding post and the audio input end of left earphone are connected, and the second end of the 4th binding post is for connecting the first audio output of external equipment; The 5th binding post, the 5th first end of binding post and the audio input end of right earphone are connected, and the second end of the 5th binding post is for connecting the second audio output of external equipment; And the 6th binding post, the earth terminal of the 6th first end of binding post and the earth terminal of left earphone and right earphone is connected respectively, and the second end of the 6th binding post is used for connecting earth signal.
Further, audio collecting device also comprises: the 3rd microphone, first interface parts also comprise: the 7th binding post, and the first end of the 7th binding post is connected with the audio output of the 3rd microphone, and the second end of the 7th binding post is for connecting the 3rd audio input end of external equipment.
Further, audio collecting device also comprises: the 3rd microphone, the second interface unit also comprises: the 7th binding post, and the first end of the 7th binding post is connected with the audio output of the 3rd microphone, and the second end of the 7th binding post is for connecting the 3rd audio input end of external equipment.
Further, interface unit comprises: the first binding post, the first end of the first binding post is connected with the audio output of the first microphone, the second end of the first binding post is for connecting the first audio input end of external equipment, or first the first end of binding post and the audio input end of left earphone be connected, the second end of the first binding post is for connecting the first audio output of external equipment; The second binding post, the first end of the second binding post is connected with the audio output of second microphone, the second end of the second binding post is for connecting the second audio input end of external equipment, or second the first end of binding post and the audio input end of right earphone be connected, the second end of the second binding post is for connecting the second audio output of external equipment; And the 3rd binding post, the first end of the 3rd binding post is connected respectively with the earth terminal of the first microphone and the earth terminal of second microphone, or the earth terminal of the 3rd first end of binding post and the earth terminal of left earphone and right earphone is connected respectively, the second end of the 3rd binding post is used for connecting earth signal, audio collecting device also comprises: diverter switch, for controlling audio collecting device, receive the audio frequency to external equipment, or control audio collecting device transmission audio frequency to external equipment.
Further, audio collecting device also comprises: the 3rd microphone, interface unit also comprises: the 4th binding post, and the first end of the 4th binding post is connected with the audio output of the 3rd microphone, and the second end of the 4th binding post is for connecting the 3rd audio input end of external equipment.
Further, interface unit comprises: the first binding post, and the first end of the first binding post is connected with the audio input end of left earphone, and the second end of the first binding post is for connecting the first audio output of external equipment; The second binding post, the first end of the second binding post is connected with the audio input end of right earphone, and the second end of the second binding post is for connecting the second audio output of external equipment; The 3rd binding post, the first end of the 3rd binding post is connected with the audio output of the first microphone, and the second end of the 3rd binding post is for connecting the first audio input end of external equipment; The 4th binding post, the 4th first end of binding post and the audio output of second microphone are connected, and the second end of the 4th binding post is for connecting the second audio input end of external equipment; And the 5th binding post, the earth terminal of the 5th first end of binding post and the earth terminal of left earphone, right earphone, the earth terminal of the first microphone and the earth terminal of second microphone are connected respectively, and the second end of the 5th binding post is used for connecting earth signal.
Further, interface unit comprises: USB interface, for connecting external equipment; And change-over circuit, the first end of change-over circuit is connected respectively with second microphone with left earphone, right earphone, the first microphone, and the second end of change-over circuit is connected in USB interface.
To achieve these goals, according to a further aspect in the invention, provide a kind of voice recorder, having comprised: any audio collecting device that the invention described above provides; And memory module, be connected with audio collecting device.
Further, voice recorder also comprises: transmission module, is connected with audio collecting device; And decoder module, be connected with signal transmission module.
Further, voice recorder also comprises: rack body, audio collecting device, memory module, transmission module of living in and decoder module are all arranged in rack body.
By the present invention, adopt the audio collecting device that comprises following structure: left earphone body, right earphone body, the first microphone, is arranged on left earphone body, second microphone, is arranged on right earphone body, and interface unit, first end is connected respectively with second microphone with the first microphone, the second end is used for connecting external equipment, by will be for perception stereophonic field, two microphones that gather voice data are separately positioned on the earphone body of left and right, left and right earphone body both can be made In-Ear Headphones body, also can make headphone body, when using audio collecting device of the present invention, user can be placed on respectively left ear place and auris dextra place by left earphone body and right earphone body, really realized from Ren Lianger position perception stereophonic field, and then realized the embodiment true to nature of immersion three-dimensional sound field, solve audio collecting device of the prior art and cannot realize the problem of people's ear stereophonic field perception, and then reached the effect of the perceptibility that improves people's ear stereophonic field.
Accompanying drawing explanation
The accompanying drawing that forms the application's a part is used to provide a further understanding of the present invention, and schematic description and description of the present invention is used for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 a is according to the schematic appearance of the single microphone of correlation technique;
Fig. 1 b to Fig. 1 e is according to the schematic diagram of conventional directive property configuration of single microphone when recording of correlation technique;
Fig. 2 a is according to the schematic appearance of the AB microphone of correlation technique;
Fig. 2 b relies on the range attenuation of sound field to realize the schematic diagram that stereophonic field is recorded according to the AB microphone of correlation technique;
Fig. 3 a is according to the schematic appearance of the XY microphone of correlation technique;
Fig. 3 b relies on heart type directive property to realize the schematic diagram that stereophonic field is recorded according to the XY microphone of correlation technique;
Fig. 4 a is according to the schematic appearance of the MS microphone of correlation technique;
Fig. 4 b relies on complete point to and diplocardia type microphone is realized the schematic diagram that zeroth order and single order sound field are recorded according to the MS microphone of correlation technique;
Fig. 5 a is according to the schematic appearance of the ORTF microphone of correlation technique;
Fig. 5 b realizes with distance and directive property the schematic diagram that stereo sound field is recorded according to the ORTF microphone arrangement of correlation technique simultaneously;
Fig. 6 a is according to the schematic appearance of the emulation number of people microphone of correlation technique;
Fig. 6 b relies on contouring head and auricle to realize the schematic diagram to the simulation of auditory perceptual according to the emulation number of people microphone of correlation technique;
Fig. 7 is the schematic diagram that monophonic audio is recorded the mobile phone of ability that has according to correlation technique;
Fig. 8 is according to the schematic diagram of the mobile phone of the embedded twin-channel microphone location ability of having of correlation technique;
Fig. 9 a is according to the schematic diagram of the mobile phone of the stereophony microphone peripheral configuration possessing of correlation technique;
Fig. 9 b is according to the schematic diagram of the camera of the stereophony microphone peripheral configuration possessing of correlation technique;
Figure 10 is according to the schematic diagram of the audio collecting device of the embodiment of the present invention;
Figure 11 is the schematic diagram that the audio collecting device of the application embodiment of the present invention carries out audio collection;
Figure 12 shows the schematic diagram of audio collecting device of the embodiment of the present invention of binding post;
Figure 13 is according to the schematic diagram of the audio collecting device of first preferred embodiment of the invention;
Figure 14 shows the schematic diagram of audio collecting device of the first preferred embodiment of the invention of binding post;
Figure 15 is according to the schematic diagram of the audio collecting device of second preferred embodiment of the invention;
Figure 16 is according to the schematic diagram of the audio collecting device of third preferred embodiment of the invention;
Figure 17 is according to the schematic diagram of the audio collecting device of four preferred embodiment of the invention;
Figure 18 is according to the schematic diagram of the audio collecting device of fifth preferred embodiment of the invention;
Figure 19 is according to the schematic diagram of the audio collecting device of sixth preferred embodiment of the invention;
Figure 20 is according to the schematic diagram of the voice recorder of the embodiment of the present invention;
Figure 21 is according to the schematic diagram of the voice recorder of first preferred embodiment of the invention; And
Figure 22 is according to the schematic diagram of the voice recorder of second preferred embodiment of the invention.
Embodiment
It should be noted that, in the situation that not conflicting, embodiment and the feature in embodiment in the application can combine mutually.Describe below with reference to the accompanying drawings and in conjunction with the embodiments the present invention in detail.
The embodiment of the present invention provides a kind of audio collecting device, below the audio collecting device of the embodiment of the present invention is introduced.
Figure 10 is according to the schematic diagram of the audio collecting device of the embodiment of the present invention, as shown in Figure 1, the audio collecting device of this embodiment comprises left earphone body 11, right earphone body 12, the first microphone 13, second microphone 14 and interface unit (not shown) and for the connection 15 of connecting interface parts and microphone.
Particularly, left and right earphone body both can be made In-Ear Headphones body, also can make headphone body, earphone the machine in each accompanying drawing is all specifically described with In-Ear Headphones body in embodiments of the present invention, the first microphone 13 is arranged on left earphone body 11, second microphone 14 is arranged on right earphone body 12, and one end of interface unit is connected respectively with the first microphone 13, second microphone 14 by connection 15, and the other end of interface unit is used for connecting external equipment.
The audio collecting device of the embodiment of the present invention is by will be for perception stereophonic field, two microphones that gather voice data are separately positioned on the earphone body of left and right, the audio collecting device that illustrates the embodiment of the present invention in conjunction with Figure 11 carries out the application of audio collection, when using audio collecting device of the present invention, user can be placed on respectively left ear place and auris dextra place by left earphone body and right earphone body, really realized from Ren Lianger position perception stereophonic field, and then realized the embodiment true to nature of immersion three-dimensional sound field, solve audio collecting device of the prior art and cannot realize the problem of people's ear stereophonic field perception, and then reached the effect of the perceptibility that improves people's ear stereophonic field.
Wherein, interface unit can be set to as the three-prong plug formula interface in Figure 12, first binding post 511 one end of three-prong plug formula interface is connected to the audio output of the first microphone 13, the other end can, for connecting the first audio input end of external equipment, be sent in external equipment with the audio-frequency information that the first microphone 13 is collected; In like manner, second binding post 512 one end of three-prong plug formula interface is connected to the audio output of second microphone 14, the other end can, for connecting the second audio input end of external equipment, be sent in external equipment with the audio-frequency information that second microphone 14 is collected; The 3rd binding post 513 one end of three-prong plug formula interface is connected with the earth terminal of second microphone 14 with the earth terminal of the first microphone 13, and the other end is earth terminal, connects ground signalling.
By interface unit being designed to plug-type interface, realized easily and being connected with external equipment.
Figure 13 is according to the schematic diagram of the audio collecting device of first preferred embodiment of the invention, as shown in figure 13, the audio collecting device of first preferred embodiment of the invention is compared with the audio collecting device of the embodiment of the present invention shown in Figure 10, the two difference is, the audio collecting device of first preferred embodiment of the invention also comprises left earphone and right earphone, this left and right earphone is can provide for user the earphone of audio frequency output, left earphone is arranged on left earphone body, right earphone is arranged on right earphone body, in Figure 13 11 ' represent left earphone body and left earphone, 12 ' expression right earphone body and right earphone.Wherein, interface unit can be set to as two three core formula plug interfaces in Figure 14, first three-prong plug formula interface comprises the first binding post 521, the second binding post 522 and the 3rd binding post 523, second three-prong plug formula interface comprises the 4th binding post 524, the 5th binding post 525 and the 6th binding post 526, particularly, first binding post 521 one end is connected to the audio output of the first microphone 13, the other end can be for connecting the first audio input end of external equipment, with the audio-frequency information that the first microphone 13 is collected, be sent in external equipment, in like manner, second binding post 522 one end is connected to the audio output of second microphone 14, and the other end can, for connecting the second audio input end of external equipment, be sent in external equipment with the audio-frequency information that second microphone 14 is collected, the 3rd binding post 523 one end is connected with the earth terminal of second microphone 14 with the earth terminal of the first microphone 13, and the other end is earth terminal, connects ground signalling, the 4th binding post 524 one end is connected to the audio input end of left earphone, and the other end can be for connecting the L channel audio output of external equipment, with by the L channel audio transmission of external equipment to left earphone, in like manner, the 5th binding post 525 one end is connected to the audio input end of right earphone, and the other end can be for connecting the right audio channel output of external equipment, so that the right audio channel of external equipment is transferred in right earphone, the 6th binding post 526 one end is connected with the earth terminal of left earphone and the earth terminal of right earphone, and the other end is earth terminal, connects ground signalling.
The audio collecting device of first preferred embodiment of the invention is by the earphone body of left and right, left and right earphone being set respectively, and binding post is set accordingly, realized and can in recording, monitor broadcasting; In communication scenes, ears microphone also can be experienced for communication user provides immersion sound field; At audio frequency, play in application and can also be used to carry out active noise elimination, to create better audition to user, experience.Meanwhile, by interface unit, be set to three-prong plug formula interface one or two, realized the effect of mating with the external equipment with three core jack type audio input interfaces and three core jack type audio output interfaces.
Figure 15 is according to the schematic diagram of the audio collecting device of second preferred embodiment of the invention, as shown in figure 15, the audio collecting device of second preferred embodiment of the invention is compared with the audio collecting device of the first preferred embodiment of the invention shown in Figure 14, the two difference is, the audio collecting device of second preferred embodiment of the invention also comprises the 3rd microphone 15, interface unit also comprises that the 7th binding post 527(being arranged on first three-prong plug formula interface is, first three-prong plug formula interface in Figure 14 is replaced with to four-core plug-type interface), the 7th binding post 527 one end is connected with the audio output of the 3rd microphone 15, the other end is connected with the 3rd audio input end of external equipment, with the audio-frequency information that the 3rd microphone 15 is collected, be sent in external equipment.
A kind of mode of texturing as second preferred embodiment of the invention, (the 7th binding post 527 can also be arranged on second three-prong plug formula interface, second three-prong plug formula interface in Figure 14 is replaced with to four-core plug-type interface), the 7th binding post 527 one end is connected with the audio output of the 3rd microphone 15, the other end is connected with the 3rd audio input end of external equipment, with the audio-frequency information that the 3rd microphone 15 is collected, is sent in external equipment.
The audio collecting device of second preferred embodiment of the invention can be monitored broadcasting in recording; In communication scenes, ears microphone also can be experienced for communication user provides immersion sound field, and user also can select speech microphone as input in application; At audio frequency, play in application and can also be used to carry out active noise elimination, to create better audition to user, experience.Meanwhile, by interface unit, be set to a four-core plug-type interface and a three-prong plug formula interface, realized the effect of mating with the external equipment with four-core jack type audio input interface and three core jack type audio output interfaces.
Figure 16 is according to the schematic diagram of the audio collecting device of third preferred embodiment of the invention, as shown in figure 16, the audio collecting device of third preferred embodiment of the invention is compared with the audio collecting device of the first preferred embodiment of the invention shown in 14, the two difference is, the audio collecting device of third preferred embodiment of the invention is designed to a three-prong plug formula interface by interface unit, this three-prong plug formula interface comprises the first binding post 531, the second binding post 532 and the 3rd binding post 533, audio collecting device also comprises diverter switch 16, diverter switch 16 is arranged on connection, when diverter switch 16 is switched on 161 positions, first binding post 531 one end is connected with the audio output of the first microphone 13, the other end is connected with the first audio input end of external equipment, with the audio-frequency information that the first microphone 13 is collected, be sent in external equipment, second binding post 532 one end is connected with the audio output of second microphone 14, the other end is connected with the second audio input end of external equipment, with the audio-frequency information that second microphone 14 is collected, be sent in external equipment, the 3rd binding post 533 one end is connected with the earth terminal of second microphone 14 with the earth terminal of the first microphone 13, the other end is earth terminal, connect ground signalling, when diverter switch 16 is switched on 162 positions, first binding post 531 one end is connected with left earphone, the other end is connected with the L channel audio output of external equipment, so that the L channel audio frequency of external equipment is sent in left earphone, second binding post 532 one end is connected with right earphone, the other end is connected with the right audio channel output of external equipment, so that the right audio channel of external equipment is sent in right earphone, the 3rd binding post 533 one end is connected with the earth terminal of left earphone and the earth terminal of right earphone, the other end is earth terminal, connect ground signalling.Wherein, the first end of the 3rd binding post 533 also can be connected with the earth terminal of earth terminal, the earth terminal of second microphone 14, the earth terminal of left earphone and the right earphone of the first microphone 13 while.
The audio collecting device of third preferred embodiment of the invention is by arranging diverter switch on connection, realized a three-prong plug formula structure only need to be set can both carry out audio collection and recording, and carries out again voice frequency listening.Wherein, earphone need to be consistent with the application of external equipment (such as mobile phone) with the diverter switch of microphone, when application be media play, while making a phone call etc., what on mobile phone, audio interface was corresponding is audio frequency output, now diverter switch should be in earphone state, that is, and and in 162 positions; Should be in the ears microphone position shown in 161 and record this switch in application in audio frequency and video.Meanwhile, by interface unit, be set to three-prong plug formula interface, realized the effect of mating with the external equipment with three core jack type interfaces.
Figure 17 is according to the schematic diagram of the audio collecting device of four preferred embodiment of the invention, as shown in figure 17, the audio collecting device of four preferred embodiment of the invention is compared with the audio collecting device of the third preferred embodiment of the invention shown in Figure 16, the two difference is, the audio collecting device of four preferred embodiment of the invention also comprises the 3rd microphone 15, interface unit also comprises that the 4th binding post 534(, three-prong plug formula interface in Figure 16 is replaced with to four-core plug-type interface), the 4th binding post 534 one end is connected with the audio output of the 3rd microphone 15, the other end is connected with the 3rd audio input end of external equipment, with the audio-frequency information that the 3rd microphone 15 is collected, be sent in external equipment.
The audio collecting device of four preferred embodiment of the invention had both been realized the effect of the audio collecting device of the 3rd preferred embodiment shown in Figure 16; By the 3rd microphone and corresponding binding post are set, user also can select speech microphone as input in application; At audio frequency, play in application and can also be used to carry out active noise elimination, to create better audition to user, experience.Meanwhile, by interface unit, be set to four-core plug-type interface, realized the effect of mating with the external equipment with four-core jack type interface.
Figure 18 is according to the schematic diagram of the audio collecting device of fifth preferred embodiment of the invention, as shown in figure 18, the audio collecting device of fifth preferred embodiment of the invention is compared with the audio collecting device of the first preferred embodiment of the invention shown in Figure 14, the two difference is, the audio collecting device interface unit of fifth preferred embodiment of the invention is set to comprise five core plug formula interfaces of five binding posts, wherein, first binding post 541 one end is connected with the audio input end of left earphone, the other end is connected with the L channel audio output of external equipment, so that the L channel audio frequency of external equipment is delivered to left earphone by connection, second binding post 542 one end is connected with the audio input end of right earphone, the other end is connected with the right audio channel output of external equipment, so that the right audio channel of external equipment is delivered to right earphone by connection, the 3rd binding post 543 one end is connected with the audio output of the first microphone 13, the other end is connected with the first audio input end of external equipment, with the audio frequency that the first microphone 13 is collected, be delivered in external equipment, the 4th binding post 544 one end is connected with the audio output of second microphone 14, the other end is connected with the second audio input end of external equipment, with the audio frequency that second microphone 14 is collected, be delivered in external equipment, the earth terminal of the 5th binding post 545 one end and left earphone, the earth terminal of right earphone, the earth terminal of the first microphone 13 is connected respectively with the earth terminal of second microphone 14, the other end is earth terminal, connect ground signalling.
The audio collecting device of fifth preferred embodiment of the invention can be monitored broadcasting in recording; In communication scenes, ears microphone also can be experienced for communication user provides immersion sound field; At audio frequency, play in application and can also be used to carry out active noise elimination, to create better audition to user, experience.Meanwhile, by interface unit, be set to five core plug formula interfaces, realized the effect of mating with the external equipment with five core jack type interfaces.
Figure 19 is according to the schematic diagram of the audio collecting device of sixth preferred embodiment of the invention, as shown in figure 19, the audio collecting device of sixth preferred embodiment of the invention is compared with the audio collecting device of the first preferred embodiment of the invention shown in Figure 14, the two difference is, the audio collecting device interface unit of sixth preferred embodiment of the invention is set to comprise the USB plug of USB interface 551 and change-over circuit 552, wherein, USB interface 551 is for connecting external equipment, the earth terminal of change-over circuit 552 one end and left earphone, the earth terminal of right earphone, the earth terminal of the first microphone 13 is connected respectively with the earth terminal of second microphone 14, the other end is connected with USB interface 551.
The audio collecting device of sixth preferred embodiment of the invention can be monitored broadcasting in recording; In communication scenes, ears microphone also can be experienced for communication user provides immersion sound field; At audio frequency, play in application and can also be used to carry out active noise elimination, to create better audition to user, experience.Meanwhile, by interface unit, be set to USB plug, realized the effect of mating with the external equipment with USB audio interface.
The embodiment of the present invention also provides a kind of voice recorder, below voice recorder that the embodiment of the present invention is provided be introduced.
Figure 20 is according to the schematic diagram of the voice recorder of the embodiment of the present invention, and as shown in figure 20, the voice recorder of this embodiment comprises any audio collecting device and the memory module that embodiment of the present invention foregoing provides.Wherein, audio collecting device is used for immersion three-dimensional sound field to carry out audio collection, the audio frequency of the immersion three-dimensional sound field that memory module collects for storing audio harvester.
The voice recorder of the embodiment of the present invention is by adopting the audio collecting device of the perceptibility that can realize the perception of people's ear stereophonic field, raising people ear stereophonic field to carry out audio collection, and store by memory module, reached the effect of recording immersion three-dimensional sound field audio frequency.
Figure 21 is according to the schematic diagram of the voice recorder of first preferred embodiment of the invention, as shown in figure 21, the voice recorder of first preferred embodiment of the invention is compared with the voice recorder of the embodiment of the present invention shown in Figure 20, the two difference is, the voice recorder of first preferred embodiment of the invention also comprises transmission module and decoder module, after audio frequency that the ears microphone circuit by audio collecting device collects is sent by interface unit, power amplifier in voice recorder, analog-to-digital conversion Acquisition Circuit is processed to the received signal, be delivered to the audio recording system of record device and/or be delivered to communication system via transmission module subsequently, the data that are delivered to the audio recording system of record device can be transported to memory module and store, the data that are delivered to communication system can be carried out playback and use for user via being delivered to earphone or loud speaker after decoder module decoding.Wherein, power amplifier, analog-to-digital conversion Acquisition Circuit, in lower tonequality requirement situation, can be used the circuit such as analog to digital converter of embedded in mobile phone; Scene for requiring compared with high tone quality, can configure high precision analogue change-over circuit chip for mobile phone, such as the analog to digital converter of 24bit or higher width, Low noise circuit design, high precision digital-to-analog converter.Audio recording software in audio recording system, the communication software in communication system relate generally to three class application, the one, for recording the recorder application of immersion three-dimensional sound field, the 2nd, for recording the sound that comprises immersion three-dimensional sound field, as synchronous video segment, the 3rd, the video communication of experiencing with immersion background sound field.For first two, apply, immersion three-dimensional sound field signal can be selected original pulse code modulation (Pulse Code Modulation, be called for short PCM) double-channel signal storage, also can store with binary channels or stereo lossy compression method form, and in the 3rd class application, generally select lossy compression method storage immersion three-dimensional sound field, special, for the experience of real time communication, also need to use low delay (20 ~ 40 milliseconds) coding techniques.When decoding, if audio signal is compressed format, first need to carry out decompress(ion); After decompress(ion), can connect headphones playback by digital-to-analogue conversion power amplifier, also can connect multi-loudspeaker playback, multi-loudspeaker playback need to be construed technology for eliminating, to build three-dimensional sound field effect true to nature.
The voice recorder of the embodiment of the present invention, by transmission module and decoder module are set, has been realized the effect of the audio frequency after recording being carried out to playback.
Figure 22 is according to the schematic diagram of the voice recorder of second preferred embodiment of the invention, as shown in figure 22, the voice recorder of second preferred embodiment of the invention is compared with the voice recorder of the first preferred embodiment of the invention shown in Figure 21, the two difference is, the voice recorder of second preferred embodiment of the invention comprises rack body 17, wherein, audio collecting device, memory module, transmission module and decoder module are all arranged in rack body.Wherein, the audio collecting device in rack body and each functional module can be all the Acquisition Circuit of low-power consumption, in rack body, bluetooth and USB interface can also be set, and to realize with the external world, carry out communication.
By by each functional module Integrated design in rack body, can be in the situation that not relying on terminal equipment and independent recording, and can in recording, monitor broadcasting; Simultaneously, the intrinsic earphone of earphone of the record device of the embodiment of the present invention and microphone are the straight recording system of microphone earphone common mode, can be for independently recording immersion 3D video, can also be undertaken by bluetooth and terminal equipment that video and audio synchronous synergetic is recorded or video conference collaborative, can also realize active noise suppression (Active Noise Cancellation is called for short ANC).
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (14)
1. an audio collecting device, is characterized in that, comprising:
Left earphone body;
Right earphone body;
The first microphone, is arranged on described left earphone body;
Second microphone, is arranged on described right earphone body; And
Interface unit, first end is connected respectively with described second microphone with described the first microphone, and the second end is used for connecting external equipment.
2. audio collecting device according to claim 1, is characterized in that, described interface unit comprises:
The first binding post, the first end of described the first binding post is connected with the audio output of described the first microphone, and the second end of described the first binding post is used for connecting described external equipment;
The second binding post, the first end of described the second binding post is connected with the audio output of described second microphone, and the second end of described the second binding post is used for connecting described external equipment; And
The 3rd binding post, the first end of described the 3rd binding post is connected respectively with the earth terminal of described the first microphone and the earth terminal of described second microphone, and the second end of described the 3rd binding post is used for connecting earth signal.
3. audio collecting device according to claim 1, is characterized in that, described audio collecting device also comprises:
Left earphone, is arranged on described left earphone body, and is connected with the first end of described interface unit; And
Right earphone, is arranged on described right earphone body, and is connected with the first end of described interface unit.
4. audio collecting device according to claim 3, is characterized in that, described interface unit comprises:
First interface parts, the first end of described first interface parts is connected respectively with described second microphone with described the first microphone, and the second end of described first interface parts is for connecting the audio input end of described external equipment; And
The second interface unit, the first end of described the second interface unit is connected respectively with described right earphone with described left earphone, and the second end of described the second interface unit is for connecting the audio output of described external equipment.
5. audio collecting device according to claim 4, is characterized in that,
Described first interface parts comprise:
The first binding post, the first end of described the first binding post is connected with the audio output of described the first microphone, and the second end of described the first binding post is for connecting the first audio input end of described external equipment;
The second binding post, the first end of described the second binding post is connected with the audio output of described second microphone, and the second end of described the second binding post is for connecting the second audio input end of described external equipment; And
The 3rd binding post, the first end of described the 3rd binding post is connected respectively with the earth terminal of described the first microphone and the earth terminal of described second microphone, and the second end of described the 3rd binding post is used for connecting earth signal,
Described the second interface unit comprises:
The 4th binding post, described the 4th first end of binding post and the audio input end of described left earphone are connected, and the second end of described the 4th binding post is for connecting the first audio output of described external equipment;
The 5th binding post, described the 5th first end of binding post and the audio input end of described right earphone are connected, and the second end of described the 5th binding post is for connecting the second audio output of described external equipment; And
The 6th binding post, the earth terminal of described the 6th first end of binding post and the earth terminal of described left earphone and described right earphone is connected respectively, and the second end of described the 6th binding post is used for connecting earth signal.
6. audio collecting device according to claim 5, is characterized in that,
Described audio collecting device also comprises: the 3rd microphone,
Described first interface parts also comprise:
The 7th binding post, the first end of described the 7th binding post is connected with the audio output of described the 3rd microphone, and the second end of described the 7th binding post is for connecting the 3rd audio input end of described external equipment.
7. audio collecting device according to claim 5, is characterized in that,
Described audio collecting device also comprises: the 3rd microphone,
Described the second interface unit also comprises:
The 7th binding post, the first end of described the 7th binding post is connected with the audio output of described the 3rd microphone, and the second end of described the 7th binding post is for connecting the 3rd audio input end of described external equipment.
8. audio collecting device according to claim 3, is characterized in that,
Described interface unit comprises:
The first binding post, the first end of described the first binding post is connected with the audio output of described the first microphone, the second end of described the first binding post is for connecting the first audio input end of described external equipment, or the first end of described the first binding post and the audio input end of described left earphone be connected, the second end of described the first binding post is for connecting the first audio output of described external equipment;
The second binding post, the first end of described the second binding post is connected with the audio output of described second microphone, the second end of described the second binding post is for connecting the second audio input end of described external equipment, or the first end of described the second binding post and the audio input end of described right earphone be connected, the second end of described the second binding post is for connecting the second audio output of described external equipment; And
The 3rd binding post, the first end of described the 3rd binding post is connected respectively with the earth terminal of described the first microphone and the earth terminal of described second microphone, or the earth terminal of described the 3rd first end of binding post and the earth terminal of described left earphone and described right earphone is connected respectively, the second end of described the 3rd binding post is used for connecting earth signal
Described audio collecting device also comprises: diverter switch, receives the audio frequency to described external equipment for controlling described audio collecting device, or control described audio collecting device transmission audio frequency to described external equipment.
9. audio collecting device according to claim 8, is characterized in that,
Described audio collecting device also comprises: the 3rd microphone,
Described interface unit also comprises: the 4th binding post, and the first end of described the 4th binding post is connected with the audio output of described the 3rd microphone, and the second end of described the 4th binding post is for connecting the 3rd audio input end of described external equipment.
10. audio collecting device according to claim 3, is characterized in that, described interface unit comprises:
The first binding post, the first end of described the first binding post is connected with the audio input end of described left earphone, and the second end of described the first binding post is for connecting the first audio output of described external equipment;
The second binding post, the first end of described the second binding post is connected with the audio input end of described right earphone, and the second end of described the second binding post is for connecting the second audio output of described external equipment;
The 3rd binding post, the first end of described the 3rd binding post is connected with the audio output of described the first microphone, and the second end of described the 3rd binding post is for connecting the first audio input end of described external equipment;
The 4th binding post, described the 4th first end of binding post and the audio output of described second microphone are connected, and the second end of described the 4th binding post is for connecting the second audio input end of described external equipment; And
The 5th binding post, earth terminal, the earth terminal of described the first microphone and the earth terminal of described second microphone of described the 5th first end of binding post and the earth terminal of described left earphone, described right earphone are connected respectively, and the second end of described the 5th binding post is used for connecting earth signal.
11. audio collecting devices according to claim 3, is characterized in that, described interface unit comprises:
USB interface, for connecting described external equipment; And
Change-over circuit, the first end of described change-over circuit is connected respectively with described second microphone with described left earphone, described right earphone, described the first microphone, and the second end of described change-over circuit is connected in described USB interface.
12. 1 kinds of voice recorders, is characterized in that, comprising:
Audio collecting device, described audio collecting device is the audio collecting device described in any one in claim 1 to 11; And
Memory module, is connected with described audio collecting device.
13. voice recorders according to claim 12, is characterized in that, described voice recorder also comprises:
Transmission module, is connected with described audio collecting device; And
Decoder module, is connected with described signal transmission module.
14. according to voice recorder described in claim 13, it is characterized in that, described voice recorder also comprises:
Rack body, described audio collecting device, described memory module, transmission module of living in and described decoder module are all arranged in described rack body.
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| CN201210212666.4A CN103517186A (en) | 2012-06-21 | 2012-06-21 | Audio acquiring device and audio recording device |
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| CN201210212666.4A CN103517186A (en) | 2012-06-21 | 2012-06-21 | Audio acquiring device and audio recording device |
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