CN107320109A - Frequency identification method of testing - Google Patents
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- CN107320109A CN107320109A CN201710493019.8A CN201710493019A CN107320109A CN 107320109 A CN107320109 A CN 107320109A CN 201710493019 A CN201710493019 A CN 201710493019A CN 107320109 A CN107320109 A CN 107320109A
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- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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Abstract
The invention discloses a kind of frequency identification method of testing, comprise the following steps：A, to sound carry out frequency band division；B, in each frequency band determine a basic frequency tested；C, three side frequency sound of the determination including basic frequency measure the threshold of audibility of three frequencies as stimulation sound；D, test tone is provided in order, allow subject to judge；E, frequency interval is progressively reduced, untill subject cannot distinguish between, then can determine that its minimum identification frequency range.The minimum frequency identification range of subject can be tested out, the frequency values contributed in Auditory identification susceptibility test are selected, the workload that the clinical auditory function of reduction is checked, while determining sensitivity of the subject to the frequency of Sound stimulat.The frequency identification method of testing not only has significant role to diagnosis and treatment such as tinnitus, deafness, dizziness, and is also of great importance in terms of audio output device, and the effectively protection sense of hearing avoids auditory trauma, improves satisfaction and comfortableness that popular earphone is used.
Description
Technical field
The invention belongs to a kind of audiology method of testing, more particularly, to a kind of frequency identification method of testing.
Background technology
Pure tone test is a kind of audiology method of testing popularized very much, the sensitivity of listening for testing subject, instead
Reflect the hearing level of the minimum sound for each frequency that subject can hear under quiet environment, available for hearing impairment degree and
Judge deaf property, its each usually said frequency typically only refers to 0.125,0.25,0.5,1,1.5,2,3,4,6 and
8kHz, so pure tone test only reflects the susceptibility of tested frequency, and intermediate frequency is often ignored, and exactly at this
But imply very important detailed information in a little ignored data, these information for clinical disease antidiastole and listen
Feel that rehabilitation is significant.It can be seen that conventional pure tone test method starts to show weak point in current actual clinical test,
During especially modern tinnitus inspection is diagnosed with hyperakusis, therefore a kind of Auditory identification susceptibility on pure tone test is surveyed
Method for testing starts to be popularized and paid attention in clinical audition is checked, this method is to respond spy based on human body inner ear neuron
The method of testing levied, can more accurately measuring the hearing state of human ear, there is provided more full details and significant clinic
Information, for example, find the hearing impairment of concealment, display tinnitus site and the correlation of hearing state etc..
Auditory identification susceptibility test is different from conventional pure tone test, and the selected frequency accuracy done is very high, more to react
Detailed information, obtains test result very accurately and completely, and degree of cooperation that under normal circumstances can be simply according to subject is adopted
Tested with the octave such as 1/12 or 1/24, if may have up to when all testing the ears of a subject
300 test sites, so many test volume may need to expend the longer testing time, or even allow subject's fatigue to cause threshold
It is worth error.Also other situations, even same subject, its resolving ability to different frequency bands sound also has very big difference
Different, usual human ear is most sensitive to the sound of speech frequency (often referring to 0.5-4kHz), can meticulously distinguish, but to speech
Sound beyond frequency is then less sensitive, and for different subjects, due to the difference of individual, can also cause to same
The resolving ability of sound is different in frequency band.
For this reason, it may be necessary to a kind of new means of testing be proposed, to detect for different subjects, actually using which kind of precision
Frequency test parameter it is the most efficient and rational, this method is called frequency identification and tested by we, and the test is suitably applied in ear
In the hearing test project such as ring, deafness, dizziness, the diagnosis and treatment to otological disease play an important role.
The leading frequency identification test before Auditory identification susceptibility test is carried out, the situation actual according to subject is selected to close
Suitable test frequency parameter, can effectively reduce the workload that clinical auditory function is checked, while determining subject to Sound stimulat
Frequency sensitivity, needing to use some audio output devices, for example audiphone, music earphone, tinnitus sound therapentic dress
When putting etc., it is possible to which more useful reference datas are provided, accomplish protection hearing and avoid auditory trauma, greatly improve these
The user satisfaction and comfortableness of product.
The content of the invention
It is an object of the invention to provide a kind of frequency identification method of testing, at least one in above mentioned problem can solve the problem that
It is individual.
According to an aspect of the invention, there is provided a kind of frequency identification method of testing, comprises the following steps：
A, to sound carry out frequency band division；
B, in each frequency band determine a basic frequency tested；
C, three side frequency sound including basic frequency including are determined as stimulation sound, and measure listening for three frequencies
Threshold；
D, test tone is provided in order, allow subject to judge；
E, the interval for progressively reducing side frequency, until subject cannot distinguish between three sound, then can determine that its minimum is known
Other frequency range.
The beneficial effects of the invention are as follows：Minimum frequency identification range of the subject in each frequency band can be tested out, is helped
Frequency values in Auditory identification susceptibility test are selected, and can effectively be reduced the workload that clinical auditory function is checked, be surveyed simultaneously
Determine sensitivity of the subject to the frequency of Sound stimulat, need to use some audio output devices, such as audiphone, music
When earphone, tinnitus sound therapentic equipment etc., it is possible to which more useful reference datas are provided, accomplish protection hearing and avoid listening
Damage, greatly improves the user satisfaction and comfortableness of these products.
In some embodiments, it is generally divided into three frequency bands in step a, respectively 0.125~0.5kHz, 0.5~
4kHz and 4~8kHz.Because human ear is different to the voice recognition capability of different frequency bands, the frequency band 0.5 concentrated for speech sound~
4kHz human ears are most sensitive, and substantially reduced in below 0.5kHz or more than 4kHz recognition capability, therefore, are typically divided into
Three frequency bands, can shorten the testing time, improve testing efficiency.
In some embodiments, the basic frequency of 0.125~0.5kHz frequency bands is set to 0.25kHz, 0.5~4kHz frequency bands
Basic frequency be set to 1kHz, the basic frequency of 4~8kHz frequency bands is set to 6kHz.Thus, it is possible to improve testing efficiency.
In some embodiments, the frequency values of larger octave or fixation are first selected in preliminary test in step c,
It is determined that three side frequency sound including basic frequency are used as stimulation sound；Then, the frequency selected is known using the sense of hearing
The method of other susceptibility test, tests out corresponding pure tone audiometry.Because the loudness of stimulation sound has certain influence on frequency identification,
So the threshold of audibility that subject is first determined when to sound is particularly significant.
In some embodiments, the stimulation sound in step d is to increase 10dB on pure tone audiometry, and three are provided in order
Stimulation sound, the duration of each stimulation sound is 1000ms；Then, subject is allowed to make three stimulation sound identical or differ
Selection.Because the length to sound time-histories may influence the accuracy of frequency identification, so when providing stimulation sound with digital skill
Art is controlled the duration control of each stimulation sound in 1000ms, rather than using human hand.
In some embodiments, after subject's selection stimulation sound is differed in step e, progressively reduce between side frequency
Every, repeat the above steps, it is final to determine that the minimum of subject recognizes frequency until subject cannot be distinguished from three sound.
Embodiment
The present invention is further detailed explanation below.
The frequency identification method of testing of the present invention, comprises the following steps：
A, to sound carry out frequency band division；Because human ear is different to the voice recognition capability of different frequency bands, a large amount of in the past
Research in learn, for speech sound concentrate frequency band 0.5~4kHz human ears it is most sensitive, and below 0.5kHz or 4kHz with
On recognition capability but substantially reduce；Therefore test sound is generally divided into three frequency bands, respectively 0.125~0.5kHz, 0.5
~4kHz and 4~8kHz.
B, in each frequency band determine a basic frequency tested；Wherein, the basic frequency of 0.125~0.5kHz frequency bands is set
For 0.25kHz, the basic frequency of 0.5~4kHz frequency bands is set to 1kHz, and the basic frequency of 4~8kHz frequency bands is set to 6kHz.
C, selection frequency interval, it is determined that three side frequency sound including basic frequency are used as stimulation sound；Then, it is right
The method that the frequency selected uses Auditory identification susceptibility test, tests out corresponding pure tone audiometry.
In step c in preliminary test, first select the frequency values of larger octave or fixation, fixed frequency values enter as：
1000th, 500,100,10 and 1Hz；
Auditory identification susceptibility test method employed in step c is, during with 2dB loudness value and 300ms stimulation
Journey carries out pure tone test to subject.
D, increase 10dB on pure tone audiometry, three stimulation sound provided in order, it is each stimulate sound duration be
1000ms；Then, subject is allowed to make the selection that three stimulation sound are identical or differ.
If e, subject's selection stimulation sound are differed, the interval of side frequency is progressively reduced, is repeated the above steps, until
Subject cannot be distinguished from three sound, the final minimum identification frequency for determining subject.
Now illustrated using 1kHz as centre frequency, selection includes three adjacent octave frequency conducts including 1kHz
Stimulate sound, during beginning octave can select it is larger as：Third-octave or 1/6 octave.If selecting third-octave, this three
Individual stimulation sound is 794Hz, 1000Hz and 1260Hz.Auditory identification susceptibility test is carried out to these three frequencies, with 2dB sound
Angle value and 300ms stimulation time-histories carry out pure tone test to subject, pure tone audiometry of the subject in these frequencies are obtained, each
Individual listen above threshold increases 10dB, and persistently 1000ms gives above three stimulation sound in order respectively, it is desirable to which subject judges these three
Sound is identical or differed.If subject's selection is differed, octave is reduced, 1/6 octave is such as changed to, then
The other three stimulation sound is changed into 891Hz, 1000Hz and 1122Hz, and threshold value is obtained to sound with same operation, if subject according to
So selection is differed, then octave is continued to zoom out to 1/12,1/24,1/48, untill subject cannot be distinguished.Example
Three sound can not be distinguished if subject is under 1/48 octave, then subject in 0.5~4kHz frequency bands most
Small frequency is identified as 1/24 octave.
Similarly, the minimum identification frequency of 0.5~4kHz frequency bands and 4~8kHz frequency bands can be measured with reference to above-mentioned steps.
Thus, frequency identification method of testing of the invention can test out the minimum frequency identification range of subject, help
Frequency values selection in Auditory identification susceptibility test, the workload that the clinical auditory function of reduction is checked, while determining tested
Sensitivity of the person to the frequency of Sound stimulat.
Frequency identification method of testing not only has significant role to tinnitus test, and also has again in terms of audio output device
Big meaning, such as common hearing aid fitting, if it is known that user to the recognition capability of different frequency sound after, help
More scientific foundation is provided in terms of the quantity selection and adjustment of listening the parameter regulation especially passage of device, to which kind of property should be selected
The hearing compensation devices such as the audiphone of energy characteristic have more preferable directive function, are finally reached the protection sense of hearing and avoid the mesh of auditory trauma
's.Also music earphone, tinnitus sound therapentic equipment etc. also provide more useful reference datas, greatly improve making for these products
With satisfaction and comfortableness.
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, various modifications and improvements can be made, these belong to the present invention
Protection domain.
Claims (6)
1. frequency identification method of testing, it is characterised in that comprise the following steps：
A, to sound carry out frequency band division；
B, in each frequency band determine a basic frequency tested；
C, three side frequency sound of the determination including basic frequency measure the threshold of audibility of three frequencies as stimulation sound；
D, test tone is provided in order, allow subject to judge；
E, the interval for progressively reducing side frequency, until subject cannot distinguish between three sound, then can determine that its minimum identification frequency
It is wide.
2. frequency identification method of testing according to claim 1, it is characterised in that be generally divided into three in the step a
Individual frequency band, respectively 0.125~0.5kHz, 0.5~4kHz and 4~8kHz.
3. frequency identification method of testing according to claim 2, it is characterised in that by the master of 0.125~0.5kHz frequency bands
Frequency is set to 0.25kHz, and the basic frequency of 0.5~4kHz frequency bands is set to 1kHz, and the basic frequency of 4~8kHz frequency bands is set to 6kHz.
4. frequency identification method of testing according to claim 3, it is characterised in that in the step c in preliminary test,
The frequency values of larger octave or fixation are first selected, it is determined that three including basic frequency side frequency sound is used as stimulation
Sound；
Then, the method for using Auditory identification susceptibility test to the frequency selected, tests out corresponding pure tone audiometry.
5. frequency identification method of testing according to claim 4, it is characterised in that the stimulation sound in the step d be
Increase 10dB on pure tone audiometry, three stimulation sound are provided in order, the duration of each stimulation sound is 1000ms；
Then, subject is allowed to make the selection that three stimulation sound are identical or differ.
6. frequency identification method of testing according to claim 5, it is characterised in that subject's selection thorn in the step e
After sharp sound is differed, the interval of side frequency is progressively reduced, until subject cannot be distinguished from three sound, subject is finally determined
Minimum identification frequency.
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Cited By (4)
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| CN107693024A (en) * | 2017-11-13 | 2018-02-16 | 佛山博智医疗科技有限公司 | Two-dimentional and three-dimensional HLD method of testings |
| CN108703761A (en) * | 2018-06-11 | 2018-10-26 | 佛山博智医疗科技有限公司 | The test method of Auditory identification susceptibility |
| CN111897363A (en) * | 2020-08-10 | 2020-11-06 | 仕昌电子(深圳)有限公司 | Flight control system, intermediary device and unmanned aerial vehicle applying same |
| CN112690783A (en) * | 2020-12-28 | 2021-04-23 | 佛山博智医疗科技有限公司 | Method for controlling sound frequency alternating output |
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| CN107320109B (en) | 2019-12-10 |
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