CN205430534U - Noise proof earplug microphone of preventing uttering long and high -pitched sounds - Google Patents
Noise proof earplug microphone of preventing uttering long and high -pitched sounds Download PDFInfo
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- CN205430534U CN205430534U CN201520459574.5U CN201520459574U CN205430534U CN 205430534 U CN205430534 U CN 205430534U CN 201520459574 U CN201520459574 U CN 201520459574U CN 205430534 U CN205430534 U CN 205430534U
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Abstract
The utility model discloses a noise proof earplug microphone of preventing uttering long and high -pitched sounds includes: sound duct protecgulum (2), casing (3), pickup sensor (4), audio transmission line (5) and connector (6) are led to earplug cover (1), area, casing (3) embed mount pad base, wiring cavity and the heat of pickup sensor (4), pickup sensor (4) and mould sleeve pipe (52), heat is moulded and is set up audio transmission line (5) in sleeve pipe (52). The utility model has the advantages of the antinoise, prevent uttering long and high -pitched sounds, adorn wear small and exquisite, convenient, comfortable and hidden.
Description
Technical field
This utility model relates to a kind of microphone, is specifically related to the anti-ear type microphone of uttering long and high-pitched sounds of a kind of anti-noise.This utility model belongs to and utilizes tube chamber transmission in human body face to realize acoustic-electric switch technology field, specifically use closed type earplug built-in condenser electret sound pickup sensor, accept, by human body face interior conduit, the sound that vocal cords and oral cavity produce, realize good preventing environment noise, effectively avoiding acoustic feedback to utter long and high-pitched sounds, fill and wear body mike application design hidden and easy to use with this.
Background technology
Nowadays, each brand has the kinds such as hand-held, tie clip formula, wear-type, throat viberating, bone conduction formula and headset seton-type with the microphone that human body carries both at home and abroad.This kind of microphone application the most universal. be mainly used in voice class pickup, they often with waist-mounted type or take on hanging small-sized microphone, mobile phone, transmitter receiver, wireless transmitter connect use；Its general character is easy for carrying, and application is flexibly.So using relatively broad, it is received by the market.Above-mentioned all kinds of microphone the most all has respective feature, makes a concrete analysis of as follows:
Portable wireless microphone: this is a kind of microphone that emitter and pick-up head are designed as one, must use before mouth with holding microphone and closely gathering during actual application, and pickup effect is good, and anti-noise effect is general, less easily utters long and high-pitched sounds, transmits very convenient.But microphone guard is relatively big, photography Shi Hui shield portions face, and also a hands need to be held microphone and maintain a certain distance；
Tie clip formula wireless microphone: this is a kind of microphone consisted of line and small-sized tie clip miaow head purse emitter.Being worn on collar by microphone during actual application, owing to microphone can not be directly to mouthpiece part, and miaow head is apart from mouthpiece farther out.Therefore pickup effect relatively hand-held is poor, voice pickup effect still can, but environment resistant noise result is bad, easily causes and utters long and high-pitched sounds.If problem above is especially prominent during dress width neck clothing；
Wear-type wireless microphone: this is a kind of microphone consisted of line and hanger miaow head purse emitter.Usually wear or miaow head is delivered to mouthpiece position by connecting rod by ear-hang mode.Pickup effect is preferable; anti-noise and anti-effect of uttering long and high-pitched sounds are general; but microphone hanger when reality is applied often band serve trouble; such as can affect hair style; face's connecting rod can affect image; wearing miaow head displacement after using a period of time and produce the change (we often see that user constantly can correct the position of miaow head with hands) of volume and tonequality, the long-time dress of hanger is worn and can be produced sticky feeling etc..Although wear-type wireless microphone relatively portable wireless microphone is a hands can be freed, but some user do not like use wear-type wireless microphone in view of the foregoing；
Throat viberating microphone: this microphone is mainly used in supporting with wireless interspeaker, or it is used for the occasion that environment noise is bigger.It is, by an elastic split ring, two pick ups are pressed against position near the vocal cords of larynx neck, carries out data-collection pickup sound by the vibration of sensing vocal cords.Being characterized in that noise resisting ability is the strongest, it is not easy to produce and utter long and high-pitched sounds, but tonequality is poor, it is very big on image impact that larynx ring worn by user dress, also can feel very ill；
Bone conduction microphone: this microphone and throat viberating microphone have similarity, are all directly mechanical signal to be converted into electronic signal.Bone conduction microphone is used for mobile phone headset, Bluetooth headset, transmitter receiver etc..Bone-conduction microphone is by the audio frequency pressure change in solid vibration transmission sound rather than air.So, the anti-outside noise of this microphone is very capable, it is not easy to utter long and high-pitched sounds, tonequality is general, some cheek dress is worn formula and is also influenced whether image appearance, and this microphone is owing to being the audio frequency vibration that transmitted by solid of contact collection, and use time length will necessarily be felt under the weather.
Headset seton-type: this is the mounting microphone consisted of line with earphone, is referred to as headset.It is supporting for mobile phone mostly at present.Owing to microphone is that combination is in the line of earphone, so not concrete fixing position, move with string pendulum during use, often with being held by closer mouthpiece speech, this microphone anti-noise weak effect, pickup frequency band is narrow, the most easily utters long and high-pitched sounds if not share with earphone, and other has the occasion of on-the-spot public address almost without being used.
Utility model content
The purpose of this utility model is, it is provided that the anti-ear type microphone of uttering long and high-pitched sounds of a kind of anti-noise, to overcome the disadvantages mentioned above existing for prior art and deficiency.
The purpose of this utility model is to solve to wear at convenient, attractive in appearance and custom dress in above-mentioned background technology, antinoise and preventing such as is uttered long and high-pitched sounds at the defect that aspect exists, explore the creative utilization intraluminal transfer voice of human body face and pressure change, develop into anti-noise with acoustic-electric switch technology and prevent uttering long and high-pitched sounds the utility model product of ear type microphone.
The mode of this utility model employing and effect
From people universal to the cognition of ear human organ.This is the organ of a pure broken audition.Never go to expect that it is also used as other function.So, people constantly study for ear and develop the listening device of various performance and style, as closed, semi open model headphone, supra-aural earphone and In-Ear Headphones etc..
The audition of human body self might as well be made an analysis by again, and when vocal cord vibration sounding in human body, the sound oneself experienced is in fact essentially from four parts: what Part I was experienced is the direct sound wave sent from oneself face；What Part II was heard is the reflected sound (including existing the public address of audio amplifier) by building sides and ground；Part III is the sound that the auditory nerve being delivered in ear by human face skeleton is experienced, i.e. bone conduction；Part IV is then the sound being delivered to ear by human body face from interior lumen.
About being delivered to ear by human body face from interior lumen and obtain the mechanism of sound be: when people talk, along with vocal cords and a motion shut up, pharyngotympanic tube is made to form harmomegathus, the air flow pressure causing inside produces synchronization change and is transferred to middle ear, causes vibrophone to experience sound from inside.Thus, if external auditory meatus be in the most airtight under conditions of, drum vibration of membrane formed pressure change just can make sound pickup sensor acquisition signal, as shown in Figure 3 A and Figure 3 B, in Fig. 3 A, transfer voice path, from eustachian orifice, through pharyngotympanic tube, tympanum, then arrive external ear through external auditory meatus.In Fig. 3 B, transfer voice path, vocal cords through aditus laryngis, again through pharyngotympanic tube, pharyngotympanic tube aditus laryngis, to middle ear, without oral cavity.
This utility model make use of human body face from the approach of interior lumen transmission sound just, by the method for reverse thinking, sound pickup sensor is used to receive the sounding of self vocal cords in ear, avoid the impact of extraneous other sound various, it is achieved make the innovation of pickup in human body self ear of ear type microphone simultaneously.
The technology that this utility model uses and the purpose reached
Pickup transmitter wants highly effective antinoise, it is simply that voice required for being able to receive that collection also isolates other incoherent sound any simultaneously.Signal to noise ratio is the biggest, and anti-noise effect is the best；For the requirement of noiseproof feature mainly at aspects such as military affairs, industry, traffic and daily life.
Pickup transmitter wants highly effective avoiding to utter long and high-pitched sounds, and this, for using microphone to make again the place of on-the-spot public address simultaneously, is the difficult problem that can not fully and completely solve the most all the time.Equally, when sound pickup sensor only collects original sound or a direct sound wave, each secondary reflection sound produced from audio amplifier public address and acoustic enviroment can be effectively isolated simultaneously, then, just so that whole audio system is formed without closed loop produces acoustic feedback, thus avoid uttering long and high-pitched sounds.
Nowadays, people have got used to having on earplug in various occasions and have appreciated music, listen to radio station and carry out voice call.This is not only the hidden and convenience that dress is worn.The tonequality of earplug and fabulous soundproof effect are also the key factors that can be commonly used.Additionally, by bus ship airline traveling way in, in order to from noise jamming have a rest sleep, use anti-noise earplug can play good soundproof effect.
By " vocal cords sounding some be to be delivered to ear by human body face from interior lumen " and the inspiration of " PlayGear Stealth has good anti-noise soundproof effect and dress to wear hidden; custom easy to use ", if making the microphone of a kind of ear type, during use, plug is in ear, both the sound come from interior lumen transmission by human body face can be gathered, and extraordinary extraneous sound can be isolated again.So, the microphone of this ear type uses lifting and the breakthrough that can obtain essence under the conditions of two kinds.
A. the environmental noise occasion collection voice at high sound pressure level can reach good intelligibility and definition；
B. there is the occasion of public address by microphone Volume Up, or going to will not produce before audio amplifier and utter long and high-pitched sounds.
Solve the technical problem that required for this utility model, can be achieved through the following technical solutions:
The anti-ear type microphone of uttering long and high-pitched sounds of a kind of anti-noise, it is characterised in that including: earplug set, band phonocatheter protecgulum, housing, sound pickup sensor, audio transmission line and connector；The built-in sound pickup sensor of described housing, the mounting seat base of sound pickup sensor, wiring cavity and thermoplastic sleeve pipe, arrange audio transmission line in described thermoplastic sleeve pipe.
Wherein, described earplug set uses antinoise low resilience earplug, connects microphone and ear, fits with auditory meatus.
Wherein, described band phonocatheter protecgulum, housing use bayonet fashion assembling, and described band phonocatheter protecgulum is made up of phonocatheter and entrant sound filter screen.
Wherein, described sound pickup sensor uses electret capacitor miaow, and overall dimensions is: diameter 9.70mm, highly 4.50mm, gathers the element carrying out sound in human body face from interior lumen transmission, obtains audio electrical signal by sound pickup sensor data-collection of uttering a word.
Wherein, the mounting seat base of described sound pickup sensor is arranged a circle and close glue.
Wherein, described audio transmission line one end is welded with sound pickup sensor, the other end and connector welding.
Wherein, described ear type microphone is connected with wireless microphone emitter, and described wireless microphone emitter includes: infrared, bluetooth, frequency modulation or transmitter receiver.
Further, described wireless microphone emitter and corresponding wireless microphone receptor wireless connections.
The beneficial effects of the utility model:
Can be drawn by above analysis, if we make a pickup transmitter product being similar to ear inserting type earphone style, it becomes possible to reach antinoise and prevent the effect uttered long and high-pitched sounds.The exploitation and design of this innovative product should have and meet following aspects:
A. an ear inserting type product can small and exquisite, convenient, comfortable and hidden being worn in the outer syrinx of human body；
B., highly sensitive directionless pressure type sound pickup sensor is set in ear inserting type shell；
C. sound pickup sensor and audio transmission line to firmly install in housing, it is to avoid produce the vibration of displacement；
D. earplug enters ear portions and to have good rebound performance, to guarantee to wear stability with extraneous sound insulation and dress；
The audio transmission line exit of the most whole ear type microphone, installs seam and all must fully seal；
F. the audio signal of sound pickup sensor is drawn by soft shielding audio transmission line；
G. the other end shielding audio transmission line can install different types of connector, in order to connects various audio frequency apparatus.
Accompanying drawing explanation
The anti-ear type microphone outline drawing of uttering long and high-pitched sounds of Fig. 1 anti-noise.
The anti-ear type microphone profile of uttering long and high-pitched sounds of Fig. 2 A anti-noise.
The anti-ear type microphone profile of uttering long and high-pitched sounds of Fig. 2 B anti-noise.
The anti-ear type microphone of uttering long and high-pitched sounds of Fig. 3 A anti-noise receives sound approach schematic diagram.
The anti-ear type microphone of uttering long and high-pitched sounds of Fig. 3 B anti-noise receives sound approach schematic diagram.
The anti-ear type microphone scheme of installation of uttering long and high-pitched sounds of Fig. 4 anti-noise.
The anti-ear type microphone application system schematic diagram of uttering long and high-pitched sounds of Fig. 5 anti-noise.
Anti-ear type microphone and the tie clip microphone spectrum measurement schematic diagram of uttering long and high-pitched sounds of Fig. 6 anti-noise.
Anti-ear type microphone and the tie clip microphone contrast phone spectrogram of uttering long and high-pitched sounds of Fig. 7 A-Fig. 7 F anti-noise.
Fig. 7 A anti-noise is prevented uttering long and high-pitched sounds the voice spectrum figure of ear type microphone, single syllable sounding " you ".
The voice spectrum figure of Fig. 7 B tie clip microphone, single syllable sounding " you ".
Fig. 7 E anti-noise is prevented uttering long and high-pitched sounds the voice spectrum figure of ear type microphone, single syllable sounding " good ".
The voice spectrum figure of Fig. 7 F tie clip microphone, single syllable sounding " good ".
Left side (blue) frequency spectrum is that ear type microphone records, and right side (green) frequency spectrum is that tie clip formula microphone records.Enunciator is schoolgirl.
The anti-ear type microphone noiseproof feature test philosophy figure of uttering long and high-pitched sounds of Fig. 8 anti-noise.
The anti-ear type microphone noiseproof feature test spectrogram of uttering long and high-pitched sounds of Fig. 9 anti-noise.
Reference:
Earplug set 1, band phonocatheter protecgulum 2, entrant sound filter screen 22, housing 3, sound pickup sensor 4, electret capacitor miaow 41, closing glue 42.Audio transmission line 5, thermoplastic sleeve pipe 52.With connector 6.
Wireless microphone emitter 7, wireless microphone emitter A71, wireless microphone emitter B72 ... wireless microphone emitter n7n.
Wireless microphone receptor 8, sound console 9, ear type microphone 10, tie clip formula microphone 20.Microphone cord A1001, microphone cord B1002.
Ear type microphone A101, ear type microphone B102 ... ear type microphone n10n.
Power amplifier 11, audio amplifier 12, digital audio care 13, USB connecting line 14, test computer 15, source of sound computer 16, pink noise 17 and digital audio processor 18,
Detailed description of the invention
Below in conjunction with specific embodiment, this utility model is made progressive explanation.Should be understood that following example are merely to illustrate this utility model not for limiting scope of the present utility model.
Embodiment 1
As shown in Figure 1, Figure 2 shown in A and Fig. 2 B, the anti-ear type microphone of uttering long and high-pitched sounds of a kind of anti-noise, including: earplug set 1, band phonocatheter protecgulum 2, housing 3, sound pickup sensor 4, audio transmission line 5 and connector 6；The described built-in sound pickup sensor of housing 34, the mounting seat base of sound pickup sensor 4, wiring cavity and thermoplastic sleeve pipe 52, arrange audio transmission line 5 in described thermoplastic sleeve pipe 52.
Audio transmission line 5 one end is welded with sound pickup sensor 4, and the other end and connector 6 weld.
Ear type microphone is connected with wireless microphone emitter 7, and described wireless microphone emitter 7 includes: infrared, bluetooth, frequency modulation or transmitter receiver.Wireless microphone emitter 7 and corresponding wireless microphone receptor 8 wireless connections.
Developing this microphone to be mainly to be connected with wireless microphone emitter 7 such as wireless microphone purse transmitter and support the use, the various tests of the following microphone of inventor, connecting and testing also is that combining wireless microphone purse transmitter is carried out.So will not probe into for the amplifying circuit of Electret condenser microphone and wireless transmitter etc..Only ear type microphone need to be connected with purse emitter time actually used and be easy to use.Certainly technique is used to be also applied for being fabricated to other similar microphone product.
The assembly introduction of ear type microphone:
Earplug set: as a part for ear type microphone, earplug set 1 uses antinoise low resilience earplug, connects microphone and ear, fits with auditory meatus.Also it is that ear type microphone noise robustness is played vital effect simultaneously.In the innovation product, it is designed with antinoise low resilience earplug set, is commonly called as remembering ear cotton.This earplug set has dress and wears soft comfortable, and its rebound memory performance can fit tightly with auditory meatus, has good soundproof effect.
Sound pickup sensor: this is the element gathering and carrying out sound in human body face from interior lumen transmission, obtains audio electrical signal by sound pickup sensor data-collection of uttering a word.Inventor has selected high sensitivity directionless pressure type electret capacitor miaow head 41, and overall dimensions is: diameter 9.70mm, highly 4.50mm.Other technical parameter is as follows:
Band phonocatheter protecgulum 2, housing 3 use bayonet fashion to assemble, and described band phonocatheter protecgulum 2 is made up of phonocatheter and entrant sound filter screen 22.
Housing and band phonocatheter protecgulum: the shell of ear type microphone is made up of with band phonocatheter protecgulum housing, respectively by injection mo(u)lding, the two uses bayonet fashion assembling.Built-in sound pickup sensor and wiring cavity thereof.The structure of its middle housing part includes the mounting seat base of thermoplastic sleeve pipe 52 and sound pickup sensor 4.
Band phonocatheter front cover portion is made up of phonocatheter 21 and entrant sound filter screen 22 etc., and entrant sound filter screen is to arrange to prevent foreign material from falling into.Earplug set 1 resistance is had to move back ring in phonocatheter collar extension Front-end Design, in order to avoid earplug set 1 produces displacement or separates with band phonocatheter protecgulum 2 when taking out microphone after Shi Yonging.
Audio transmission line: for the connection of ear type microphone Yu connector.Select ultra-fine single-core shielding line, the external diameter 1.8mm of audio transmission line, screen layer is for being wound around or weaving manner, shielding line and core are tinned copper wire, the convenient welding of tin plating advantage, anti-copper surface oxidation, core structure 7/0.12MM, audio transmission line length is generally about 1 meter, surface sheath material: PVC plastic, color: black.
Connector 6: be used for and wireless microphone emitter or the connection of portable type amplifier.Plug generally have three kinds: MINI4 core CANNON plug, MINI3 core CANNON plug andScrew base, uses MINI4 core CANNON plug during the innovation product testing.It is crucial that depend on connected equipment interface.
The following is and be connected microphone interface statistics with part main flow wireless microphone emitter:
MINI4 core CANNON plug is applicable to the brand products such as Shure, beyerdynamic, DALTS, BBS, MIPRO and JTS.
MINI3 core CANNON plug is applicable to the brand products such as AudioTechnia, AKG.
Screw base is applicable to the brand products such as Sennheiser, TAKSTAR.
After the apolegamy completing all composition this utility model product components, carry out the assembling of ear type microphone according to scheme of installation shown in Fig. 4.The technological process that ear type microphone assembles is:
A. audio transmission line 5 being penetrated housing 3, in housing 3, the preceding paragraph 5mm thermoplastic sleeve pipe 52 is overlapped in one end, is then welded with electret capacitor miaow head by audio transmission line 5；
B. after pad, at 8mm, heating is fixed thermoplastic sleeve pipe 52 with audio transmission line 5, in case pulling audio transmission line 5 to influence whether stress at solder joint when using；
C. in housing, on the pedestal of electret capacitor miaow head 41, play a circle close glue 42, electret capacitor miaow head 41 is fixed on pedestal；
D. the junction at housing 3 with band phonocatheter protecgulum 2 is uniformly played a circle and is closed glue 42, by band phonocatheter protecgulum 2 on lid with lug；
Using flexible closure glue at above two primarily to prevent entrant sound of leaking gas, this can be bigger for the impact of defening effect, it is necessary to is paid attention to.
E. earplug set 1 is installed in rotary manner on band phonocatheter protecgulum 2, it is desirable to be completely nested and be locked.
F. the connector 6 finally burn-oning required at the other end of audio transmission line 5, equally, audio transmission line 5 carries out pinching tightly in connector 6 domestic demand, in order to avoid solder joint stress.
After the installation completing this utility model, must be it is to be understood that the performance of this utility model product and effect.Owing to this ear type microphone has the particularity of its realistic application conditions, needing to be worn in human ear, its duty depends on vocal cords and the cooperation of these human body face organs of tube chamber again.If the method for testing therefore using usual microphone is not suitable for this microphone, the actual performance of this microphone can not be reflected in other words strictly according to the facts.So, for current test, it is merely able to this microphone is carried out the contrast test in terms of binomial main performance.
Section 1 is to test microphone noise resisting ability before and after dress is worn under noise environment conditions, also is able to its anti-effect uttered long and high-pitched sounds is described simultaneously.
Section 2 is that to multiple monosyllabic language sound spectrums, this microphone is carried out record in realistic application conditions with a tie clip formula microphone simultaneously, can draw some key property features, such as the size of pickup signal, pickup frequency characteristic etc. by relatively analyzing.
Below this binomial performance test is briefly described and is analyzed:
A. the test of noise resisting ability
As shown in Figure 8, ear type microphone 10, to test a microphone and be placed on neckline position (Fig. 8 middle and upper part), test objection tube plug enters external auditory meatus and uses position (middle part in Fig. 8).Building ear type microphone noiseproof feature test system according to Fig. 8, employing pink noise 17 is as test source of sound, and preferably test noise is more than more than 30dB than environmental noise sound pressure level.Test noise is exported through power amplifier 11 to audio amplifier 12 public address by the audio frequency of source of sound computer 16；Tested microphone connects wireless microphone emitter 7, such as purse transmitter, after uhf band wireless transmission to wireless microphone receptor 8 connects digital audio care 13 input test computer 15, SMAART acoustical testing software A weighted mode measures.
Inventor uses with a ear type microphone, under the most equal test condition, relatively this microphone wears position at the dress of usual tie clip microphone, and microphone is worn on actually used position at external auditory meatus the frequency spectrum of noise is distinguished, analyze and judge that this microphone is in the application state isolation performance to noise.
Fig. 9 is the ear type microphone noiseproof feature spectrogram recorded.The khaki frequency spectrum of its middle and upper part is to wear measured by position at the dress of usual tie clip microphone, the result that the red spectrum of bottom records when being and microphone is worn on the actually used position at external auditory meatus.From the comparison of two spectral characteristics of noise it is found that ear type microphone is good to the isolation performance of environmental noise.Especially can reach the isolation of 30dB or above at 500-10KHz, other display frequency also has significantly decay.Wherein the anti-noise ability of high band is better than low-frequency range.Thus can also draw, when this microphone high sound pressure level public address occasion make voice pickup use time, have and fabulous prevent the ability of uttering long and high-pitched sounds.
B. the contrast test of voice spectrum
Tie clip formula microphone 20 and the test system of ear type microphone 10 frequency spectrum is built according to Fig. 6, two tested microphones are connected respectively to respective purse transmitter wireless microphone emitter A71, wireless microphone emitter B72, through two different for UHF frequency range wireless transmission to two-way wireless microphone receptor 8, then respectively through microphone cord A1001, 1 and 2 input ports of microphone cord B1002 input digital audio care 13, the output of digital audio care 13 accesses test computer 15 through USB connecting line 14, open two windows of SMAART acoustical testing software simultaneously, use A weighted mode that the pickup frequency spectrum of two microphones is carried out synchro measure.
The source of sound of this test uses female voice pronunciation, and two pickup transmitters are worn on the body of same person respectively, and tie clip formula microphone is worn on coat neckline position, and ear type microphone is filled at the external auditory meatus of an ear.Following three subsynchronous contrast tests are made the most respectively.
First is to test the voice spectrum of " you ", " ", " good " 3 monosyllables respectively to third time.
Although under these conditions, when also not having sounding, tie clip formula microphone can receive more environment noise, and ear type microphone can isolate the background noise of many.But owing to the volume of the actual sounding of noise sound pressure level is relatively low, so being negligible for effect of noise in the contrast of voice spectrum.
Anti-ear type microphone and the tie clip microphone contrast phone spectrogram of uttering long and high-pitched sounds of Fig. 7 A-Fig. 7 F anti-noise.The spectral contrast of three syllables can obtain:
Fig. 7 A anti-noise is prevented uttering long and high-pitched sounds the voice spectrum figure of ear type microphone, single syllable sounding " you ".
The voice spectrum figure of Fig. 7 B tie clip microphone, single syllable sounding " you ".
Fig. 7 E anti-noise is prevented uttering long and high-pitched sounds the voice spectrum figure of ear type microphone, single syllable sounding " good ".
The voice spectrum figure of Fig. 7 F tie clip microphone, single syllable sounding " good ".
Left side blue spectrum is that ear type microphone records, and right side green frequency spectrum is that tie clip formula microphone records.Enunciator is schoolgirl.
Ear type microphone pickup signal in human antrum auris is the most weak, but the frequency spectrum of the two has bigger difference；
The low frequency component that ear type microphone is picked up is the most more, and should be that the sympathetic response point of tube chamber in position worn by dress near 250Hz；
Two kinds of pickup modes are consistent to the reflection of pronunciation fundamental frequency；
The 2000Hz frequencies above composition that ear type microphone is picked up in human antrum auris is less；
Ear type microphone is clearly more in the decay of medium-high frequency overtone part；
Ear type microphone is almost difficult to obtain dental signal, and this is also one of the factor that high frequency components lacks.
In a word, above test result is entirely the different caused of pickup position, because the pickup miaow head of two kinds of microphone employings is identical, also reflects the difference of two kinds of microphone pickup effects.Owing to ear type microphone is by human body face internal pickup sound, relative to there is certain difference for the tie clip microphone of pickup before mouth.So ear type microphone is in actual use, when being linked into audio system, such as make decay or excise to 250Hz frequencies below to the repairing of defect frequency range through sound console or digital audio processor, carry out 2000Hz-6300Hz promoting compensation, certain improvement will be obtained.
Popularization and application for the ease of product of the present invention, provide the anti-ear type microphone application system schematic diagram of uttering long and high-pitched sounds of anti-noise, as shown in Figure 5, during the actual application of this microphone just as tie clip formula electret capacitor microphone, if ear type microphone A101, ear type microphone B102 ... and ear type microphone n10n accesses wireless microphone receptor 8 wireless transmit purse machine or shoulder is hung, belt microphone just can use.In audio amplification system, can be for the deficiency in terms of this microphone frequency response, sound console 9 or digital audio processor 18 passage, power amplifier 11, audio amplifier 12 make up and modify, owing to it has the most anti-performance of uttering long and high-pitched sounds, so the leeway carrying out audio frequency regulation and process is sizable.
Anti-noise ear type microphone of preventing uttering long and high-pitched sounds is a kind of product being applicable to voice class pickup.
The anti-ear type microphone product of uttering long and high-pitched sounds of anti-noise is applicable to following various aspects as language pickup:
By microphone connected mode: connect wireless microphone emitter and include all kinds of emitters such as infrared, bluetooth, frequency modulation, intercommunication；Connect waist extension or shoulder is hung microphone etc. and carried out language pickup, as shown in Figure 6.
By use occasion: environment noise is more greatly or the biggest occasion includes military affairs, space flight, mineral products, industry, traffic, building site etc.；There is on-the-spot public address and the occasion easily uttered long and high-pitched sounds include stage performance, informational lectures, teaching give lessons, bench command, guide to visitors explanation etc..
The anti-ear type microphone product of uttering long and high-pitched sounds of anti-noise prepared by this utility model has the following characteristics that
Advantage: antinoise, anti-utter long and high-pitched sounds, fill wear small and exquisite, convenient, comfortable and hidden.
Shortcoming: dental composition lacks, high fdrequency component less need to be mended still, more need to the work of low frequency component decays.
This anti-noise is prevented uttering long and high-pitched sounds other pickup class microphone product and application thereof that ear type microphone innovative technology is equally applicable to design and produce with this technology and mode.Such as can make in an ear is playback earplug, is the Novel ear-microphone product etc. of pickup earplug in another ear.
Being illustrated detailed description of the invention of the present utility model above, but this utility model is not limited thereto, without departing from objective of the present utility model, this utility model can also have various change.
Claims (8)
1. the anti-ear type microphone of uttering long and high-pitched sounds of anti-noise, it is characterized in that, including: earplug set (1), band phonocatheter protecgulum (2), housing (3), sound pickup sensor (4), audio transmission line (5) and connector (6)；Described housing (3) built-in sound pickup sensor (4), the mounting seat base of sound pickup sensor (4), wiring cavity and thermoplastic sleeve pipe (52), arrange audio transmission line (5) in described thermoplastic sleeve pipe (52).
The anti-ear type microphone of uttering long and high-pitched sounds of anti-noise the most according to claim 1, it is characterised in that: described earplug set (1) uses antinoise low resilience earplug, connects microphone and ear, fits with auditory meatus.
The anti-ear type microphone of uttering long and high-pitched sounds of anti-noise the most according to claim 1, it is characterized in that: described band phonocatheter protecgulum (2), housing (3) use bayonet fashion assembling, and described band phonocatheter protecgulum (2) is made up of phonocatheter and entrant sound filter screen (22).
The anti-ear type microphone of uttering long and high-pitched sounds of anti-noise the most according to claim 1, it is characterized in that: described sound pickup sensor (4) uses electret capacitor miaow (41), overall dimensions is: diameter 9.70mm, highly 4.50mm, gather the element carrying out sound in human body face from interior lumen transmission, obtain audio electrical signal by sound pickup sensor data-collection of uttering a word.
The anti-ear type microphone of uttering long and high-pitched sounds of anti-noise the most according to claim 1, it is characterised in that: a circle is set on the mounting seat base of described sound pickup sensor (4) and closes glue (42).
The anti-ear type microphone of uttering long and high-pitched sounds of anti-noise the most according to claim 1, it is characterised in that: described audio transmission line (5) one end is welded with sound pickup sensor (4), the other end and connector (6) welding.
The anti-ear type microphone of uttering long and high-pitched sounds of anti-noise the most according to claim 1, it is characterized in that: described ear type microphone is connected with wireless microphone emitter (7), described wireless microphone emitter (7) including: infrared, bluetooth, frequency modulation or transmitter receiver.
The anti-ear type microphone of uttering long and high-pitched sounds of anti-noise the most according to claim 7, it is characterised in that: described wireless microphone emitter (7) and corresponding wireless microphone receptor (8) wireless connections.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520459574.5U CN205430534U (en) | 2015-06-30 | 2015-06-30 | Noise proof earplug microphone of preventing uttering long and high -pitched sounds |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520459574.5U CN205430534U (en) | 2015-06-30 | 2015-06-30 | Noise proof earplug microphone of preventing uttering long and high -pitched sounds |
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| CN205430534U true CN205430534U (en) | 2016-08-03 |
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| CN201520459574.5U Expired - Fee Related CN205430534U (en) | 2015-06-30 | 2015-06-30 | Noise proof earplug microphone of preventing uttering long and high -pitched sounds |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110291797A (en) * | 2017-02-15 | 2019-09-27 | Jvc建伍株式会社 | Sound pick up equipment and sound pick-up method |
| CN116456236A (en) * | 2023-02-16 | 2023-07-18 | 东莞市猎声电子科技有限公司 | Oscillator wire shielding low-echo howling type bone conduction earphone and low-echo howling method thereof |
-
2015
- 2015-06-30 CN CN201520459574.5U patent/CN205430534U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110291797A (en) * | 2017-02-15 | 2019-09-27 | Jvc建伍株式会社 | Sound pick up equipment and sound pick-up method |
| CN116456236A (en) * | 2023-02-16 | 2023-07-18 | 东莞市猎声电子科技有限公司 | Oscillator wire shielding low-echo howling type bone conduction earphone and low-echo howling method thereof |
| WO2024169104A1 (en) * | 2023-02-16 | 2024-08-22 | 东莞市猎声电子科技有限公司 | Low-echo-howling type bone conduction earpiece using vibrator wire shielding, and low-echo-howling method thereof |
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