CN104783807B - Tinnitus acoustic data detection device - Google Patents
Tinnitus acoustic data detection device Download PDFInfo
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- CN104783807B CN104783807B CN201410029919.3A CN201410029919A CN104783807B CN 104783807 B CN104783807 B CN 104783807B CN 201410029919 A CN201410029919 A CN 201410029919A CN 104783807 B CN104783807 B CN 104783807B
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/12—Audiometering
- A61B5/128—Audiometering evaluating tinnitus
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- Audiology, Speech & Language Pathology (AREA)
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- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
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- General Health & Medical Sciences (AREA)
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Abstract
The invention discloses a tinnitus acoustic data detection device. The tinnitus acoustic data detection device comprises a directional collecting device and a signal processing device connected with the directional collecting device. The directional collecting device comprises a first sound collector and a second sound collector, the direction of the first sound collector is opposite to that of the second sound collector, and the direction of sound collected by the first sound collector is opposite to the direction of sound collected by the second sound collector. Outside sound and tinnitus sound in an ear canal can be conveniently received at the same time, two received sound signals are processed respectively, and tinnitus acoustic data are obtained conveniently. A detection method includes the following steps that the directional collecting device collects sound signals under different environments, the collected signals are processed by the signal processing device and then converted into a waveform to be output, and acoustic data of the tinnitus sound are obtained according to an output waveform result. The tinnitus acoustic data detection device and the detection method have the advantages of being capable of effectively obtaining acoustic data of patients who suffer from tinnitus.
Description
Technical field
The invention belongs to the analytical equipment and method of a kind of tinnitus sound, fill more particularly, to a kind of detection of tinnitus acoustic data
Put and detection method.
Background technology
Tinnitus refers to the autonomous sound perception under conditions of without extraneous Sound stimulat or electricity irritation, is common one in clinic
Disease is planted, is also the generally acknowledged difficult problem of medical circle.Generally tinnitus is divided into subjective tinnitus and objective tinnituses.
For subjective tinnitus, generally the frequency of tinnitus sound is carried out according to patient main suit and pitch matches experiment at this stage
Rate, loudness analysis.Pitch matches experiment mainly provides the sound of a characteristic frequency and loudness using external device, allows patient
Whether subjective discrimination is similar with itself tinnitus sound, and with the mode of subjective response the feature of tinnitus sound is gathered.And existing use
Mainly there are sonometer, otoacoustic emission, acoustic impedance, auditory evoked potential etc. in the equipment of Audiometry, contribute to inspection and listen
Feel the test equipment of each position auditory function of path, cardinal principle is to stimulate sound by instrument transmitting, after then collection stimulates
Produced various sound, the signal of telecommunication, it is impossible to for the collection of tinnitus sound feature.
In use, also have true ear test system, its mainly for detection of user's sonifer performance indications,
When being included in specific Sound stimulat condition, user is using sonifer state and does not use external auditory meatus sound pressure level under sonifer state
Numerical value, and for tinnitus patient itself tinnitus acoustic data also cannot be obtained.
The characteristic of objective tinnituses is：Patient does some actions or itself human body abnormal operation is produced when vibrating, through outer
Ear, middle ear or bone conduction are delivered to internal ear and form sound perception.Under quiet and specified conditions, this tinnitus can be by other people institutes
Perceive, but still without objective acoustic data.
The content of the invention
It is an object of the invention to provide a kind of tinnitus acoustics number of the acoustic data that can effectively obtain tinnitus patient
According to detection means and detection method.
According to an aspect of the invention, there is provided a kind of tinnitus acoustic data detection means, including point to harvester
And with the signal processing apparatus point being connected to harvester, point include the first sound collector and second sound to harvester
Catcher, the sensing of the first sound collector and second sound catcher is conversely, the first sound collector and second sound are collected
Device collects the in opposite direction of sound.
The invention has the beneficial effects as follows：It is provided with point to harvester, wherein the first sound collector and second sound are collected
Device can simultaneously collect the contrary sound of both direction, and thus, the convenient tinnitus acoustic data detection means by the present invention is being put
When entering external auditory meatus and carrying out tinnitus data acquisition, the convenient tinnitus sound received simultaneously in extraneous sound and auditory meatus；Pass through signal again
The analyzing and processing of processing meanss, can directly be compared the sound in the auditory meatus of collection, direct access with external sound
The acoustic data of tinnitus, carries out collection and analysis, the convenient use of tinnitus acoustic data.
In some embodiments, dividing to harvester can also include housing, the first sound collector and second sound
Catcher is fixed in housing.Housing is provided with, facilitates the installation and fixation of the first sound collector and second sound catcher, with
And it is easy to both placements in external auditory meatus.
In some embodiments, can to include that dsp chip is connected with dsp chip first defeated for signal processing apparatus
Incoming interface, the second input interface, the first output interface and the second output interface, dsp chip passes through the first input interface and second
Input interface is connected with dividing to harvester.Thus, the acoustic information of two different directions collected by wind direction harvester
Can be entered to dsp chip and be analyzed by the first input interface, the second input interface respectively, it is to avoid mutual impact,
Increased the accuracy of gathered acoustic consequences analysis；Meanwhile, analysis completes latter two analytical data respectively by the first input
Interface and the second input interface are exported, the independent output of the convenient voice data feature to two different directions,
In some embodiments, dividing to harvester can also include that be connected with the first sound collector first counts
According to transmission line and the second data line being connected with second sound catcher, first data transmission line and the first input interface phase
Connection, the second data line is connected with the second input interface.First data transmission line and the second data line are provided with, just
The acoustical signal collected in the first sound collector and second sound catcher it is separate be delivered to signal processing apparatus, keep away
Exempt from the impact between two signals, improve the accuracy of testing result.
In some embodiments, signal processing apparatus can also include power supply and potentiometer, power supply by potentiometer with
Dsp chip is connected.Be provided with power supply directly can provide energy, convenient use for dsp chip work；Potentiometer is provided with, can be with
The output gain of control dsp chip.
In some embodiments, the outside of housing can be provided with protective case, and protective case is coated on first data transmission line
With the outside of the second data line.Protective case is provided with, for protecting first data transmission line and the second data line, together
When, it is convenient that wind direction harvester is placed in the external auditory meatus of human body.
In some embodiments, the outside of housing can be arranged with sleeve, one end of sleeve and one end phase of protective case
Abut, the material of sleeve is elastomeric material.Be provided with sleeve, and for elastic material, be easy to by extraneous sound be isolated in sleeve it
Outward, it is to avoid external sound enters auditory meatus, improve point accuracy that sound is gathered to harvester.
In some embodiments, the first sound collector and second sound catcher may each comprise one or more wheats
Gram wind.Thus, it is possible to according to the different increase in demand of user or the quantity of reduction mike, increased being suitable for for the present invention
Property.
According to another aspect of the present invention, there is provided a kind of detection method of tinnitus acoustic data detection means, including
Following steps：
A, point will be placed under quiet environment to harvester, the first sound collector and second sound catcher carry out sound
Collect, export corresponding signal；
B, point will be placed in external auditory meatus to harvester under quiet environment, the first sound collector and second sound are received
Storage is collected respectively and exports corresponding signal to the sound in auditory meatus and outside auditory meatus；
C, by step a and step b export waveform be compared, obtain a result.
The beneficial effect of detection method of the present invention is：Gather respectively under quiet environment to harvester and auditory meatus due to dividing
Interior acoustical signal, so as to facilitate two kinds of environment under acoustical signal contrast；Dsp chip will divide the sound collected to harvester
It is respectively processed, and is converted to waveform output, thus, different waveforms is obtained Jing after processing under alternative sounds environment, it is convenient
The direct judgement of tinnitus condition.When the waveform obtained under quiet environment is consistent with both waveforms obtained in auditory meatus, judge
For normal；When both are inconsistent, then it is judged as tinnitus.Meanwhile, the corresponding numerical value of different wave is easy to collect, and can obtain ear
The corresponding data of waveform under ring state, are easy to the collection of tinnitus acoustic data.
In some embodiments, the signal for exporting in step a and step b is changed respectively through dsp chip by FFT
Obtain waveform to be exported, FFT is 32 point FFT, sample rate 16KHz, per frame 8 point sampling.Thus, can be fast using FFT conversions
Speed conversion is in real time changed the analogue signal collected from point analogue signal obtained to after harvester collection, is improved
The accuracy of detection signal.
Description of the drawings
Fig. 1 is the structural representation of the tinnitus acoustic data detection means of the present invention；
Fig. 2 is that the detection method of the present invention is identical in the first sound collector and second sound catcher collection acoustical signal
When signal processing apparatus output waveform；
Fig. 3 is the waveform of detection method signal processing apparatus output under tinnitus condition of the present invention.
Specific embodiment
Below in conjunction with the accompanying drawings the present invention is further detailed explanation.
With reference to Fig. 1.The tinnitus acoustic data detection means of the present invention include point to harvester 1 and with point to harvester
1 signal processing apparatus 2 being connected, dividing to harvester 1 includes the first sound collector 11 and second sound catcher 12, the
The sensing of one sound collector 11 and second sound catcher 12 is conversely, the first sound collector 11 and second sound catcher 12
The in opposite direction of sound is collected, the first sound collector 11 and second sound catcher 12 include one or more mikes.
In use, wind direction harvester is placed in external auditory meatus, by the first sound collector 11 towards auditory meatus inner side, the
Two sound collectors 12 adopt the sound in the collection auditory meatus of the first sound collector 11, second sound catcher 12 towards outside
Outside collection auditory meatus, i.e., extraneous sound.
Dividing to harvester 1 also includes housing 13, and the first sound collector 11 and second sound catcher 12 are fixed on shell
In body 13.The material of housing 13 is medical macromolecular materials, mainly the material system such as polrvinyl chloride, natural rubber and polyethylene
Into, convenient patterned mounting holes on housing 13, it is easy to the first sound collector 11 and second sound catcher 12 in installing hole
Fixation.
Signal processing apparatus 2 include DSP（Digital Signal Process, Digital Signal Processing）Chip 21 and DSP
The first input interface 22, the second input interface 23, the first output interface 24 and the second output interface 25 that chip 21 is connected,
Dsp chip 21 is connected with dividing by the first input interface 22 and the second input interface 23 to harvester 1.
Point also include the first data transmission line 14 that is connected with the first sound collector 11 and with second to harvester 1
Second data line 15 of the connection of sound collector 12, first data transmission line 14 is connected with the first input interface 22, the
Two data lines 15 are connected with the second input interface 23.The acoustical signal of the ear canal internal that the first sound collector 11 is collected
Through first data transmission line 14, then transmit to dsp chip 21 through the first input interface 22, through the detection of dsp chip 21
Exported by the first output interface 24 with after process.The extraneous acoustical signal that second sound catcher 12 is collected is through the second data
Transmission line 15, then transmit to dsp chip 21 through the second input interface 23, by the through the detection of dsp chip 21 and after processing
Two output interfaces 25 are exported.The observation of the data after for convenience dsp chip 21 is analyzed and processed, can be in the first output interface 24
With the external connection computer of the second output interface 25, while can be stored by other means.
Signal processing apparatus 2 also include power supply 26 and potentiometer 27, and power supply 26 is connected by potentiometer 27 with dsp chip 21
Connect.Power supply 26 can be battery, and switch 5 is connected between power supply 26 and dsp chip 21, can control DSP cores by switch 5
The work of piece 21 and halted state, the convenient control to dsp chip 21.DSP cores are changed by the resistance value of regulator potentiometer 27
The output gain of piece 21, facilitates the observation and contrast of the output result of dsp chip 21.
The outside of housing 13 is arranged with protective case 3 so that protective case 3 is fastened on the outside of housing 13, and protective case 3 is coated on
The outside of the data line 15 of first data transmission line 14 and second.The outside of housing 13 is arranged with sleeve 4, and sleeve 4 is fastened on
On housing 13, one end and one end of protective case 3 of sleeve 4 abut against, and the material of sleeve 4 is elastomeric material, such as：Rubber, effectively
Prevent the external world sound enter auditory meatus.
In actual use, can be in quiet environment or audiometry sound insulation is indoor, it was observed that the first sound collecting
As the data that device 11 is gathered with second sound catcher 12；Then will divide and be placed in external auditory meatus to harvester 1, at this moment
The acoustical signal Jing DSP cores collected by the first sound collector 11 and second sound catcher 12 can be observed by recorder
Data after the process of piece 21 are variant, and the data that the first sound collector 11 is gathered occur in rhythmicity, i.e., necessarily
The undulatory property of time interval, the as data of the output of dsp chip 21, the acoustic data of tinnitus sound.
The detection method of the tinnitus acoustic data detection means of the present invention, comprises the following steps：
A, point will be placed under quiet environment to harvester 1, the first sound collector 11 and second sound catcher 12 enter
The acoustical signal of collection is converted to simulation letter by row sound collecting, the first sound collector 11 and second sound catcher 12 respectively
Number；In actual use, quiet environment can be in sound insulation room, under quiet environment, by the He of the first sound collector 11
The acoustical signal that second sound catcher 12 is collected is identical.Dsp chip 21 will divide the analogue signal transmitted to harvester 1 to change
For digital signal, and be converted to waveform output；Dsp chip 21 samples point analogue signal conveyed to harvester through ADC
Afterwards, sample rate 16KHz, per the point sampling of frame 8, is reconverted into digital signal.
B, point will be placed in external auditory meatus to harvester 1 under quiet environment, the first sound collector 11 and the rising tone
Sound catcher 12 is collected respectively to the sound in auditory meatus and outside auditory meatus, the first sound collector 11 and second sound catcher
The acoustical signal of collection is converted to analogue signal by 12 respectively；Dsp chip 21 will divide the analogue signal transmitted to harvester 1 to turn
Digital signal is changed to, and is converted to waveform output；Wherein dsp chip 21 will divide the analogue signal conveyed to harvester 1 to pass through
Digital signal is obtained with after the conversion of step a identical.
C, by step a and step b export waveform be compared, obtain a result.What the first sound collector 11 was collected
The waveform that acoustical signal draws is exported through the first output interface 24, what the acoustical signal that second sound catcher 12 is collected drew
Waveform is exported through the second output interface 25；The waveform of output can be observed with external-connection displayer.
As shown in Fig. 2 waveform A represents the waveform exported by the second output interface 25, waveform B is represented by the first output interface
The waveform of 24 outputs, the acoustical signal that step a is collected is collected due to the first sound collector 11 and second sound catcher 12
Acoustical signal is identical, so the ripple exported by the first output interface 24 and the second output interface 25 after dsp chip 21 is changed
Shape is consistent.As shown in figure 3, waveform A represents the waveform exported by the second output interface 25, waveform B is represented by the first output interface
The waveform of 24 outputs, in step b, the first sound collector 11 is different with the sound collecting environment of second sound catcher 12, when
When consistent with the waveform that the second output interface 25 is exported by the first output interface 24 after dsp chip 21 is changed, then explanation does not have
There is tinnitus；When the waveform of two output interface outputs is inconsistent, then explanation has tinnitus.
The signal exported in step a and step b is respectively through dsp chip 21 through FFT（Fast Fourier
Transformation, as fast Fourier transform）It is converted to waveform to be exported, FFT can adopt 32 point FFT, sampling
Rate 16KHz, per the point sampling of frame 8, improves the precision of sampling.
Above-described is only the preferred embodiment of the present invention, it is noted that for one of ordinary skill in the art
For, without departing from the concept of the premise of the invention, some deformations and improvement can also be made, these belong to this
Bright protection domain.
Claims (8)
1. tinnitus acoustic data detection means, including point to harvester (1) and with point signal being connected to harvester (1)
Processing meanss (2), described point to harvester (1) including the first sound collector (11) and second sound catcher (12), institute
The sensing of the first sound collector (11) and second sound catcher (12) is stated conversely, first sound collector (11) and
Two sound collectors (12) collect the in opposite direction of sound.
2. tinnitus acoustic data detection means according to claim 1, wherein, described point to harvester (1) also includes
Housing (13), first sound collector (11) and second sound catcher (12) are fixed in housing (13).
3. tinnitus acoustic data detection means according to claim 1, wherein, the signal processing apparatus (2) are including DSP
The first input interface (22), the second input interface (23), the first output interface that chip (21) is connected with dsp chip (21)
(24) and the second output interface (25), the dsp chip (21) is by the first input interface (22) and the second input interface (23)
It is connected to harvester (1) with point.
4. tinnitus acoustic data detection means according to claim 3, wherein, described point to harvester (1) also includes
The first data transmission line (14) being connected with the first sound collector (11) and be connected with second sound catcher (12)
Two data lines (15), the first data transmission line (14) is connected with the first input interface (22), second data
Transmission line (15) is connected with the second input interface (23).
5. tinnitus acoustic data detection means according to claim 3, wherein, the signal processing apparatus (2) also include
Power supply (26) and potentiometer (27), the power supply (26) is connected by potentiometer (27) with dsp chip (21).
6. tinnitus acoustic data detection means according to claim 2, wherein, it is provided with protection on the outside of the housing (13)
Set (3), the protective case (3) is coated on the outside of first data transmission line (14) and the second data line (15).
7. tinnitus acoustic data detection means according to claim 6, wherein, it is arranged with the outside of the housing (13)
Cylinder (4), one end and one end of protective case (3) of the sleeve (4) abut against, and the material of the sleeve (4) is elastomeric material.
8. the tinnitus acoustic data detection means according to any one of claim 1～7, wherein, first sound collecting
Device (11) and second sound catcher (12) include one or more mikes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410029919.3A CN104783807B (en) | 2014-01-22 | 2014-01-22 | Tinnitus acoustic data detection device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410029919.3A CN104783807B (en) | 2014-01-22 | 2014-01-22 | Tinnitus acoustic data detection device |
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| CN104783807A CN104783807A (en) | 2015-07-22 |
| CN104783807B true CN104783807B (en) | 2017-04-12 |
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Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE20307181U1 (en) * | 2003-04-30 | 2003-09-18 | Ufermann Annette | Tinnitus measuring device, transforms frequencies picked up by ultrasound microphone applied to mastoid bone, into frequencies that can be heard by patient |
| WO2006136879A1 (en) * | 2005-06-24 | 2006-12-28 | Ramiro Vergara | Computerised, electronic tinnitus analysis instrument known as a spectral tinnitus-measuring device |
| US20090163828A1 (en) * | 2006-05-16 | 2009-06-25 | Board Of Trustees Of Southern Illinois University | Tinnitus Testing Device and Method |
| KR101207697B1 (en) * | 2011-03-04 | 2012-12-03 | 단국대학교 산학협력단 | An objective tinnitus testing device using evoked response potential and the method to detect tinnitus objectively using this device |
| CN102920461A (en) * | 2012-09-13 | 2013-02-13 | 中国计量学院 | Eating habit monitoring device |
| CN102973277B (en) * | 2012-10-30 | 2015-04-22 | 清华大学 | Frequency following response signal test system |
| CN203303059U (en) * | 2013-06-26 | 2013-11-27 | 四川微迪数字技术有限公司 | Tinnitus detection equipment |
| CN203736198U (en) * | 2014-01-22 | 2014-07-30 | 蓝天翔 | Device for detecting tinnitus acoustic data |
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2014
- 2014-01-22 CN CN201410029919.3A patent/CN104783807B/en active Active
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