CN202759583U - Audio acquisition device and audio recording device - Google Patents
Audio acquisition device and audio recording device Download PDFInfo
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- CN202759583U CN202759583U CN 201220301300 CN201220301300U CN202759583U CN 202759583 U CN202759583 U CN 202759583U CN 201220301300 CN201220301300 CN 201220301300 CN 201220301300 U CN201220301300 U CN 201220301300U CN 202759583 U CN202759583 U CN 202759583U
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Abstract
The utility model discloses an audio acquisition device and an audio recording device. The audio acquisition device comprises a left earphone body; a right earphone body; a first microphone arranged on the left earphone body; a second microphone arranged on the right earphone body; and an interface unit, of which a first end is separately connected with the first microphone and the second microphone and a second end is used for being connected with an external device. According to the utility model, the problem that stereo sound field perception of the human ear cannot be achieved through an audio acquisition device in the prior art is solved, and the purpose of improving the degree of perception of the human ear on the stereo sound field is achieved.
Description
Technical field
The utility model 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 single Mike employed single microphone when recording in the prior art, Fig. 1 b to Fig. 1 e directive property configuration commonly used when being the 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 also is provided in the prior art, Fig. 2 a is the schematic appearance of employed AB microphone when carrying out stereophonic recording in the prior art, and Fig. 2 b is that the 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 employed XY microphone when carrying out stereophonic recording in the prior art, and Fig. 3 b is that the 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 employed MS microphone when carrying out stereophonic recording in the prior art, and Fig. 4 b is that the MS microphone relies on full sensing and diplocardia type microphone to realize the schematic diagram that zeroth order and single order sound field are recorded.Fig. 5 a is the schematic appearance of employed ORTF microphone when carrying out stereophonic recording in the prior art, and Fig. 5 b is that the ORTF microphone arrangement realizes the schematic diagram that stereo sound field is recorded with distance and directive property simultaneously.Fig. 6 a is the schematic appearance of employed emulation number of people microphone when carrying out stereophonic recording in the prior art, and Fig. 6 b is that emulation number of people microphone dependence contouring head and auricle are realized 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, diversified mode has also appearred on microphone arrangement, all be to attempt to simulate people's two ears to the apperceive characteristic of sound, such as time-delay, amplitude difference, phase place etc., yet be to be difficult to reach the real auditory perceptual of simulation by the microphone putting position just.Emulation number of people recording energy is enough realized the embodiment true to nature of immersion three-dimensional sound field, but mainly still being present at present some specialized laboratories uses as testing tool, record for audio frequency and video widely, the one, very be inconvenient to use, simultaneously also be very expensive (to comprise the emulation number of people, sound pick-up outfit, one cover such as treatment facility needs about 1,000,000 Euros), in addition, the present emulation number of people is mainly used in the test of the communication apparatus, be not to make for the purpose of people's ear stereophonic field perception, its quality, still there is very large difference in structure with the true number of people, and 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 are based on internal microphone and come recorded voice, tonequality is poor on the one hand for these built-in microphones, sound field represents also non-constant of ability simultaneously, illustrated among Fig. 7 and had the mobile phone that monophonic audio is recorded ability, because the energy of human speech signal all is present in more than 99% in 300～4000Hz arrowband scope, and voice in fact, also comprise abundant low frequency in the song, high-frequency signal, more rich and varied in these signals and the physical world (20hz～22Khz) signal is to consist of the necessary element of immersion sound field from the low frequency to the high frequency.The internal microphone such as mobile phone, camera, recording pen all are that the application that centers on the arrowband scenes such as conversation, voice designs usually, therefore for low frequency (＜300Hz), (＞4～8Khz) responses are very poor, therefore fundamentally lack the signal source that reappears high-quality sound field for high frequency; 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 the binary channels recording for mobile phone etc., two kinds of methods are generally arranged, the one, still adopt the embedded mode recording stereos such as mobile phone, embedded twin-channel microphone location has been shown among Fig. 8, (two embedded microphones illustrate by 81 and 82 in Fig. 8 for the general employing of this method and similar two microphones of voice call, the main microphone of 81 expressions, 82 vice microphones) be embedded in the mobile phone, the microphone one of this configuration is that the frequency response performance is not good, simultaneously because directive property, the problems such as the inner sound such as mobile phone leakage cause the sound field sense of reality recorded very poor; Another kind method is the interface equipment that stereophonic recording is provided for equipment such as mobile phones, show respectively mobile phone and the camera of the stereophony microphone peripheral configuration that possesses among Fig. 9 a and the 9b, the method has in fact partly solved the problem of embedded microphone, and the external microphone that adopts XY to configure, microphone itself adopts the Whole frequency band microphone, and simultaneously XY configuration 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 the immersion three-dimensional sound field.
Can't realize the problem of people's ear stereophonic field perception for the audio collecting device in the correlation technique, not yet propose at present effective solution.
The utility model content
Main purpose of the present utility model is to provide a kind of audio collecting device and voice recorder, can't 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 utility model, provide a kind of audio collecting device, having comprised: left earphone body; The right earphone body; The first microphone is arranged on the left earphone body; Second microphone is arranged on the 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 the left earphone body, and is connected with the first end of interface unit; And right earphone, be arranged on the right earphone body, and be connected with the first end of interface unit.
Further, interface unit comprises: the 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 used 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 used for connecting the audio output of external equipment.
Further, the 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 used 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 used 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 first end of the 4th binding post is connected with the audio input end of left earphone, and the second end of the 4th binding post is used for connecting the first audio output of external equipment; The 5th binding post, the first end of the 5th binding post is connected with the audio input end of right earphone, and the second end of the 5th binding post is used for connecting the second audio output of external equipment; And the 6th binding post, the first end of the 6th binding post is connected respectively with the earth terminal of the earth terminal of left earphone and right earphone, and the second end of the 6th binding post is used for connecting earth signal.
Further, audio collecting device also comprises: the 3rd microphone, the 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 used 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 used 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 used for connecting the first audio input end of external equipment, or 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 used 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 used for connecting the second audio input end of external equipment, or 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 used 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 first end of the 3rd binding post is connected respectively with the earth terminal of left earphone and the earth terminal of right earphone, the second end of the 3rd binding post is used for connecting earth signal, audio collecting device also comprises: diverter switch, be used for the control audio collecting device and receive next audio frequency to external equipment, or the control audio collecting device sends 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 used 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 used 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 used 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 used for connecting the first audio input end of external equipment; The 4th binding post, the first end of the 4th binding post is connected with the audio output of second microphone, and the second end of the 4th binding post is used for connecting the second audio input end of external equipment; And the 5th binding post, the first end of the 5th binding post is connected respectively with the earth terminal of the earth terminal of left earphone, right earphone, the earth terminal of the first microphone and the earth terminal of second microphone, and the second end of the 5th binding post is used for connecting earth signal.
Further, interface unit comprises: USB interface is used 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 on the other hand of the present utility model, provide a kind of voice recorder, having comprised: any audio collecting device that the utility model foregoing provides; And memory module, be connected with audio collecting device.
Further, voice recorder also comprises: the 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 all are arranged in the rack body.
By the utility model, adopt the audio collecting device that comprises following structure: left earphone body; The right earphone body; The first microphone is arranged on the left earphone body; Second microphone is arranged on the 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 the perception stereophonic field, two microphones that gather voice data are separately positioned on the earphone body of the left and right sides, left and right sides earphone body both can be made the In-Ear Headphones body, also can make the headphone body, when using audio collecting device of the present utility model, the user can be placed on respectively left ear place and auris dextra place with left earphone body and right earphone body, two ear position perception stereophonic fields from the people have really been realized, and then realized the embodiment true to nature of immersion three-dimensional sound field, solve audio collecting device of the prior art and can't 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.
Description of drawings
The accompanying drawing that consists of the application's a part is used to provide further understanding of the present utility model, and illustrative examples of the present utility model and explanation thereof are used for explaining the utility model, do not consist of improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 a is the schematic appearance according to the single microphone of correlation technique;
Fig. 1 b to Fig. 1 e is the schematic diagram of directive property configuration commonly used during according to the recording of the single microphone of correlation technique;
Fig. 2 a is the schematic appearance according to the AB microphone of correlation technique;
Fig. 2 b is the schematic diagram of recording according to the range attenuation realization stereophonic field of the AB microphone dependence sound field of correlation technique;
Fig. 3 a is the schematic appearance according to the XY microphone of correlation technique;
Fig. 3 b is the schematic diagram of recording according to the XY microphone dependence heart type directive property realization stereophonic field of correlation technique;
Fig. 4 a is the schematic appearance according to the MS microphone of correlation technique;
Fig. 4 b realizes the schematic diagram that zeroth order and single order sound field are recorded according to the full sensing of MS microphone dependence and the diplocardia type microphone of correlation technique;
Fig. 5 a is the schematic appearance according to the ORTF microphone of correlation technique;
Fig. 5 b is the schematic diagram of recording with distance and directive property realization stereo sound field simultaneously according to the ORTF microphone arrangement of correlation technique;
Fig. 6 a is the schematic appearance according to the emulation number of people microphone of correlation technique;
Fig. 6 b relies on contouring head and auricle to realize 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 the schematic diagram according to the mobile phone of the embedded twin-channel microphone location ability of having of correlation technique;
Fig. 9 a is the schematic diagram according to the mobile phone of the stereophony microphone peripheral configuration that possesses of correlation technique;
Fig. 9 b is the schematic diagram according to the camera of the stereophony microphone peripheral configuration that possesses of correlation technique;
Figure 10 is the schematic diagram according to the audio collecting device of the utility model embodiment;
Figure 11 is the schematic diagram that the audio collecting device of application the utility model embodiment carries out audio collection;
Figure 12 shows the schematic diagram of audio collecting device of the utility model embodiment of binding post;
Figure 13 is the schematic diagram according to the audio collecting device of the utility model the first preferred embodiment;
Figure 14 shows the schematic diagram of audio collecting device of the utility model first preferred embodiment of binding post;
Figure 15 is the schematic diagram according to the audio collecting device of the utility model the second preferred embodiment;
Figure 16 is the schematic diagram according to the audio collecting device of the utility model the 3rd preferred embodiment;
Figure 17 is the schematic diagram according to the audio collecting device of the utility model the 4th preferred embodiment;
Figure 18 is the schematic diagram according to the audio collecting device of the utility model the 5th preferred embodiment;
Figure 19 is the schematic diagram according to the audio collecting device of the utility model the 6th preferred embodiment;
Figure 20 is the schematic diagram according to the voice recorder of the utility model embodiment;
Figure 21 is the schematic diagram according to the voice recorder of the utility model the first preferred embodiment; And
Figure 22 is the schematic diagram according to the voice recorder of the utility model the second preferred embodiment.
Embodiment
Need to prove, in the situation that do not conflict, embodiment and the feature among the embodiment among the application can make up mutually.Describe below with reference to the accompanying drawings and in conjunction with the embodiments the utility model in detail.
The utility model embodiment provides a kind of audio collecting device, below the audio collecting device of the utility model embodiment is introduced.
Figure 10 is the schematic diagram according to the audio collecting device of the utility model embodiment, 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 the connection 15 that is used for connecting interface parts and microphone.
Particularly, left and right sides earphone body both can be made the In-Ear Headphones body, also can make the headphone body, earphone the machine in the utility model embodiment in each accompanying drawing all is specifically described with the In-Ear Headphones body, the first microphone 13 is arranged on the left earphone body 11, second microphone 14 is arranged on the right earphone body 12, 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 utility model embodiment is by will be for the perception stereophonic field, two microphones that gather voice data are separately positioned on the earphone body of the left and right sides, the audio collecting device that specifies the utility model embodiment in conjunction with Figure 11 carries out the application of audio collection, when using audio collecting device of the present utility model, the user can be placed on respectively left ear place and auris dextra place with left earphone body and right earphone body, two ear position perception stereophonic fields from the people have really been realized, and then realized the embodiment true to nature of immersion three-dimensional sound field, solve audio collecting device of the prior art and can't 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 such as the three-prong plug formula interface among Figure 12, one end of the first binding post 511 of three-prong plug formula interface is connected to the audio output of the first microphone 13, the other end can be used for connecting the first audio input end of external equipment, is sent in the external equipment with the audio-frequency information that the first microphone 13 is collected; In like manner, one end of the second binding post 512 of three-prong plug formula interface is connected to the audio output of second microphone 14, the other end can be used for connecting the second audio input end of external equipment, is sent in the external equipment with the audio-frequency information that second microphone 14 is collected; One end of the 3rd binding post 513 of three-prong plug formula interface is connected with the earth terminal of the earth terminal of the first microphone 13 and second microphone 14, and the other end is earth terminal, connects ground signalling.
By interface unit being designed to the plug-type interface, realized being connected with external equipment easily.
Figure 13 is the schematic diagram according to the audio collecting device of the utility model the first preferred embodiment, as shown in figure 13, the audio collecting device of the utility model the first preferred embodiment is compared with the audio collecting device of the utility model embodiment shown in Figure 10, the two difference is, the audio collecting device of the utility model the first preferred embodiment also comprises left earphone and right earphone, this left and right sides earphone is the earphone that audio frequency output can be provided for the user, left earphone is arranged on the left earphone body, right earphone is arranged on the right earphone body, the left earphone body of 11 ' expression and left earphone in Figure 13,12 ' expression right earphone body and right earphone.Wherein, interface unit can be set to such as two three core formula plug interfaces among 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, one end of the first binding post 521 is connected to the audio output of the first microphone 13, the other end can be used for connecting the first audio input end of external equipment, is sent in the external equipment with the audio-frequency information that the first microphone 13 is collected; In like manner, an end of the second binding post 522 is connected to the audio output of second microphone 14, and the other end can be used for connecting the second audio input end of external equipment, is sent in the external equipment with the audio-frequency information that second microphone 14 is collected; One end of the 3rd binding post 523 is connected with the earth terminal of the earth terminal of the first microphone 13 and second microphone 14, and the other end is earth terminal, connects ground signalling; One end of the 4th binding post 524 is connected to the audio input end of left earphone, and the other end can be used for connect the L channel audio output of external equipment, with the L channel audio transmission of external equipment to left earphone; In like manner, an end of the 5th binding post 525 is connected to the audio input end of right earphone, and the other end can be used for connecting the right audio channel output of external equipment, transfers in the right earphone with the right audio channel with external equipment; One end of the 6th binding post 526 is connected with the earth terminal of the earth terminal of left earphone and right earphone, and the other end is earth terminal, connects ground signalling.
The audio collecting device of the utility model the first preferred embodiment is by arranging respectively left and right sides earphone in the earphone body of the left and right sides, and binding post is set accordingly, realized and can monitor broadcast in recording; The ears microphone also can be experienced for communication user provides the immersion sound field in communication scenes; In the audio frequency broadcast is used, can also be used to carry out active noise and eliminate, experience to create better audition to the user.Simultaneously, be set to three-prong plug formula interface one or two by interface unit, 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 the schematic diagram according to the audio collecting device of the utility model the second preferred embodiment, as shown in figure 15, the audio collecting device of the utility model the second preferred embodiment is compared with the audio collecting device of the utility model the first preferred embodiment shown in Figure 14, the two difference is, the audio collecting device of the utility model the second preferred embodiment also comprises the 3rd microphone 15, interface unit comprises that also the 7th binding post 527 that is arranged on first three-prong plug formula interface (namely, first three-prong plug formula interface among Figure 14 is replaced with four-core plug-type interface), one end of the 7th binding post 527 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, is sent in the external equipment with the audio-frequency information that the 3rd microphone 15 is collected.
A kind of mode of texturing as the utility model the second preferred embodiment, the 7th binding post 527 can also be arranged on second three-prong plug formula interface (namely, second three-prong plug formula interface among Figure 14 is replaced with four-core plug-type interface), one end of the 7th binding post 527 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, is sent in the external equipment with the audio-frequency information that the 3rd microphone 15 is collected.
The audio collecting device of the utility model the second preferred embodiment can be monitored broadcast in recording; The ears microphone also can be experienced for communication user provides the immersion sound field in communication scenes, and the user also can select the speech microphone as input in application; In the audio frequency broadcast is used, can also be used to carry out active noise and eliminate, experience to create better audition to the user.Simultaneously, be set to a four-core plug-type interface and a three-prong plug formula interface by interface unit, 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 the schematic diagram according to the audio collecting device of the utility model the 3rd preferred embodiment, as shown in figure 16, the audio collecting device of the utility model the 3rd preferred embodiment is compared with the audio collecting device of the utility model the first preferred embodiment shown in 14, the two difference is, the audio collecting device of the utility model the 3rd preferred embodiment is designed to a three-prong plug formula interface with 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 the connection, when diverter switch 16 switches on 161 positions, one end of the first binding post 531 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, be sent in the external equipment with the audio-frequency information that the first microphone 13 is collected, one end of the second binding post 532 is connected with the audio output of second microphone 14, the other end is connected with the second audio input end of external equipment, be sent in the external equipment with the audio-frequency information that second microphone 14 is collected, one end of the 3rd binding post 533 is connected with the earth terminal of the earth terminal of the first microphone 13 and second microphone 14, the other end is earth terminal, connects ground signalling; When diverter switch 16 switches on 162 positions, one end of the first binding post 531 is connected with left earphone, the other end is connected with the L channel audio output of external equipment, be sent in the left earphone with the L channel audio frequency with external equipment, one end of the second binding post 532 is connected with right earphone, the other end is connected with the right audio channel output of external equipment, be sent in the right earphone with the right audio channel with external equipment, one end of the 3rd binding post 533 is connected with the earth terminal of the earth terminal of left earphone and right earphone, the other end is earth terminal, connects ground signalling.Wherein, the first end of the 3rd binding post 533 also can be connected with the earth terminal of the earth terminal of the first microphone 13, the earth terminal of second microphone 14, left earphone and the earth terminal of right earphone simultaneously.
The audio collecting device of the utility model the 3rd preferred embodiment is by arranging diverter switch at connection, realized only need to arranging a three-prong plug formula structure and can both carry out audio collection and record, 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, when making a phone call etc., what audio interface was corresponding on the mobile phone is audio frequency output, this moment, diverter switch should be in the earphone state,, was in 162 positions that is; This switch should be in the ears microphone position shown in 161 in the application and record in audio frequency and video.Simultaneously, be set to three-prong plug formula interface by interface unit, realized the effect of mating with the external equipment with three core jack type interfaces.
Figure 17 is the schematic diagram according to the audio collecting device of the utility model the 4th preferred embodiment, as shown in figure 17, the audio collecting device of the utility model the 4th preferred embodiment is compared with the audio collecting device of the utility model the 3rd preferred embodiment shown in Figure 16, the two difference is, the audio collecting device of the utility model the 4th preferred embodiment also comprises the 3rd microphone 15, interface unit also comprises the 4th binding post 534 (namely, three-prong plug formula interface among Figure 16 is replaced with four-core plug-type interface), one end of the 4th binding post 534 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, is sent in the external equipment with the audio-frequency information that the 3rd microphone 15 is collected.
The audio collecting device of the utility model the 4th preferred embodiment 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, the user also can select the speech microphone as input in application; In the audio frequency broadcast is used, can also be used to carry out active noise and eliminate, experience to create better audition to the user.Simultaneously, be set to four-core plug-type interface by interface unit, realized the effect of mating with the external equipment with four-core jack type interface.
Figure 18 is the schematic diagram according to the audio collecting device of the utility model the 5th preferred embodiment, as shown in figure 18, the audio collecting device of the utility model the 5th preferred embodiment is compared with the audio collecting device of the utility model the first preferred embodiment shown in Figure 14, the two difference is, the audio collecting device interface unit of the utility model the 5th preferred embodiment is set to comprise five core plug formula interfaces of five binding posts, wherein, one end of the first binding post 541 is connected with the audio input end of left earphone, the other end is connected with the L channel audio output of external equipment, be delivered to left earphone with the L channel audio frequency with external equipment by connection, one end of the second binding post 542 is connected with the audio input end of right earphone, the other end is connected with the right audio channel output of external equipment, be delivered to right earphone with the right audio channel with external equipment by connection, one end of the 3rd binding post 543 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, be delivered in the external equipment with the audio frequency that the first microphone 13 is collected, one end of the 4th binding post 544 is connected with the audio output of second microphone 14, the other end is connected with the second audio input end of external equipment, be delivered in the external equipment with the audio frequency that second microphone 14 is collected, one end of the 5th binding post 545 and the earth terminal of 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, connects ground signalling.
The audio collecting device of the utility model the 5th preferred embodiment can be monitored broadcast in recording; The ears microphone also can be experienced for communication user provides the immersion sound field in communication scenes; In the audio frequency broadcast is used, can also be used to carry out active noise and eliminate, experience to create better audition to the user.Simultaneously, be set to five core plug formula interfaces by interface unit, realized the effect of mating with the external equipment with five core jack type interfaces.
Figure 19 is the schematic diagram according to the audio collecting device of the utility model the 6th preferred embodiment, as shown in figure 19, the audio collecting device of the utility model the 6th preferred embodiment is compared with the audio collecting device of the utility model the first preferred embodiment shown in Figure 14, the two difference is, the audio collecting device interface unit of the utility model the 6th preferred embodiment is set to comprise the USB plug of USB interface 551 and change-over circuit 552, wherein, USB interface 551 is used for connecting external equipment, one end of change-over circuit 552 and the earth terminal of 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, and the other end is connected with USB interface 551.
The audio collecting device of the utility model the 6th preferred embodiment can be monitored broadcast in recording; The ears microphone also can be experienced for communication user provides the immersion sound field in communication scenes; In the audio frequency broadcast is used, can also be used to carry out active noise and eliminate, experience to create better audition to the user.Simultaneously, be set to USB plug by interface unit, realized the effect of mating with the external equipment with USB audio interface.
The utility model embodiment also provides a kind of voice recorder, below voice recorder that the utility model embodiment is provided be introduced.
Figure 20 is the schematic diagram according to the voice recorder of the utility model embodiment, and as shown in figure 20, the voice recorder of this embodiment comprises any audio collecting device and the memory module that the utility model embodiment foregoing provides.Wherein, audio collecting device is used for the immersion three-dimensional sound field is carried out audio collection, and memory module is used for the audio frequency of the immersion three-dimensional sound field that the storing audio harvester collects.
The voice recorder of the utility model embodiment carries out audio collection by the audio collecting device that adopts the perceptibility that can realize the perception of people's ear stereophonic field, raising people ear stereophonic field, and store by memory module, reached the effect of recording immersion three-dimensional sound field audio frequency.
Figure 21 is the schematic diagram according to the voice recorder of the utility model the first preferred embodiment, as shown in figure 21, the voice recorder of the utility model the first preferred embodiment is compared with the voice recorder of the utility model embodiment shown in Figure 20, the two difference is, the voice recorder of the utility model the first preferred embodiment 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 the voice recorder, the analog-to-digital conversion Acquisition Circuit is processed to the received signal, be delivered to communication system in the audio recording system that is delivered to record device and/or via the transmission module subsequently, the data that are delivered to the audio recording system of record device can be transported to memory module and store, and the data that are delivered to communication system can be carried out playback and use for the user via being delivered to earphone or loud speaker after the decoder module decoding.Wherein, power amplifier, analog-to-digital conversion Acquisition Circuit can be used the circuit such as analog to digital converter of embedded in mobile phone in low tonequality requirement situation; Scene for requiring than 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 the audio recording system, the communication software in the communication system relate generally to three classes and use, the one, use be used to the recorder of recording the immersion three-dimensional sound field, the 2nd, be used to record the sound that comprises the immersion three-dimensional sound field, as synchronous video segment, the 3rd, the video communication of experiencing with immersion background sound field.For front two kinds of application, immersion three-dimensional sound field signal can be selected original pulse code modulation (Pulse Code Modulation, be called for short PCM) the double-channel signal storage, also can store with binary channels or stereo lossy compression method form, and in the 3rd class is used, 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, at first need to carry out decompress(ion); Can also can connect the multi-loudspeaker playback by the playback of digital-to-analogue conversion power amplifier lug machine after the decompress(ion), the 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 utility model embodiment has realized the audio frequency after recording is carried out the effect of playback by transmission module and decoder module are set.
Figure 22 is the schematic diagram according to the voice recorder of the utility model the second preferred embodiment, as shown in figure 22, the voice recorder of the utility model the second preferred embodiment is compared with the voice recorder of the utility model the first preferred embodiment shown in Figure 21, the two difference is, the voice recorder of the utility model the second preferred embodiment comprises rack body 17, wherein, audio collecting device, memory module, transmission module and decoder module all are arranged in the rack body.Wherein, audio collecting device and each functional module in the rack body all can be the Acquisition Circuit of low-power consumption, in the rack body bluetooth and USB interface can also be set, to realize carrying out communication with the external world.
By with each functional module Integrated design in rack body, can be in the situation that rely on terminal equipment independent recording, and can in recording, monitor broadcast; Simultaneously, the intrinsic earphone of the earphone of the record device of the utility model embodiment and microphone are the straight recording system of microphone earphone common mode, can be used for independently recording immersion 3D video, can also by bluetooth and terminal equipment look audio sync collaborative record or video conference collaborative, can also realize active noise suppression (Active Noise Cancellation is called for short ANC).
The above is preferred embodiment of the present utility model only, is not limited to the utility model, and for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., all should be included within the protection range of the present utility model.
Claims (14)
1. an audio collecting device is characterized in that, comprising:
Left earphone body;
The right earphone body;
The first microphone is arranged on the described left earphone body;
Second microphone is arranged on the 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 the described left earphone body, and is connected with the first end of described interface unit; And
Right earphone is arranged on the 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:
The 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 used 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 used 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 used 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 used 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, and described the second interface unit comprises:
The 4th binding post, the first end of described the 4th binding post is connected with the audio input end of described left earphone, and the second end of described the 4th binding post is used for connecting the first audio output of described external equipment;
The 5th binding post, the first end of described the 5th binding post is connected with the audio input end of described right earphone, and the second end of described the 5th binding post is used for connecting the second audio output of described external equipment; And
The 6th binding post, the first end of described the 6th binding post is connected respectively with the earth terminal of the earth terminal of described left earphone and described right earphone, 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 used 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 used 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 used for connecting the first audio input end of described external equipment, or 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 used 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 used for connecting the second audio input end of described external equipment, or 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 used 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 first end of described the 3rd binding post is connected respectively with the earth terminal of described left earphone and the earth terminal of described right earphone, the second end of described the 3rd binding post is used for connecting earth signal
Described audio collecting device also comprises: diverter switch is used for controlling described audio collecting device and receives the extremely audio frequency of described external equipment, or controls 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 used 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 used 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 used 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 used for connecting the first audio input end of described external equipment;
The 4th binding post, the first end of described the 4th binding post is connected with the audio output of described second microphone, and the second end of described the 4th binding post is used for connecting the second audio input end of described external equipment; And
The 5th binding post, the first end of described the 5th binding post is connected respectively with the earth terminal of the earth terminal of the earth terminal of described left earphone, described right earphone, described the first microphone and the earth terminal of described second microphone, and the second end of described the 5th binding post is used for connecting earth signal.
11. audio collecting device according to claim 3 is characterized in that, described interface unit comprises:
USB interface is used 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. a voice recorder is characterized in that, comprising:
Audio collecting device, described audio collecting device are each described audio collecting device in the claim 1 to 11; And
Memory module is connected with described audio collecting device.
13. voice recorder according to claim 12 is characterized in that, described voice recorder also comprises:
The transmission module is connected with described audio collecting device; And
Decoder module is connected with described signal transmission module.
14. described voice recorder is characterized in that according to claim 13, described voice recorder also comprises:
Rack body, described audio collecting device, described memory module, transmission module of living in and described decoder module all are arranged in the described rack body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220301300 CN202759583U (en) | 2012-06-21 | 2012-06-21 | Audio acquisition device and audio recording device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201220301300 CN202759583U (en) | 2012-06-21 | 2012-06-21 | Audio acquisition device and audio recording device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103517186A (en) * | 2012-06-21 | 2014-01-15 | 徐丙川 | Audio acquiring device and audio recording device |
| CN104661158A (en) * | 2013-11-25 | 2015-05-27 | 华为技术有限公司 | Stereophone, terminal and audio signal processing method of stereophone and terminal |
| CN106358119A (en) * | 2016-09-20 | 2017-01-25 | 上海拓萧智能科技有限公司 | Audio adaptor and output method thereof |
| CN106385643A (en) * | 2015-07-30 | 2017-02-08 | 森声数字科技（深圳）有限公司 | Audio acquisition apparatus and audio input and output equipment |
-
2012
- 2012-06-21 CN CN 201220301300 patent/CN202759583U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103517186A (en) * | 2012-06-21 | 2014-01-15 | 徐丙川 | Audio acquiring device and audio recording device |
| CN104661158A (en) * | 2013-11-25 | 2015-05-27 | 华为技术有限公司 | Stereophone, terminal and audio signal processing method of stereophone and terminal |
| CN106385643A (en) * | 2015-07-30 | 2017-02-08 | 森声数字科技（深圳）有限公司 | Audio acquisition apparatus and audio input and output equipment |
| CN106358119A (en) * | 2016-09-20 | 2017-01-25 | 上海拓萧智能科技有限公司 | Audio adaptor and output method thereof |
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