CN207867896U - Speech audiometry response identification test device - Google Patents
Speech audiometry response identification test device Download PDFInfo
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- CN207867896U CN207867896U CN201820175991.0U CN201820175991U CN207867896U CN 207867896 U CN207867896 U CN 207867896U CN 201820175991 U CN201820175991 U CN 201820175991U CN 207867896 U CN207867896 U CN 207867896U
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Abstract
The utility model discloses provide speech audiometry response identification test device, including voice input module, audio coding decoding module, DSP digital signal processing modules, information processing and memory module, voice output module and DAC conversion modules；The utility model is known otherwise using computerized speech, it is compared with the voice messaging in system library using the audio comparison technology voice messaging re-reading to subject, realize whether the re-reading voice messaging of automatic decision is correct, and test result drafting pattern, improve the efficiency of speech audiometry, the subjectivity that speech audiometry judges is reduced, is played an important role to the universal of speech audiometry, so that clinical audition is checked more objective and accurate.
Description
Technical field
The utility model is related to hearing test device, more particularly to a kind of speech audiometry response identification test device.
Background technology
Speech audiometry is to check that the speech of subject perceives the threshold of audibility, speech discrimination threshold and speech using speech for test signal
Language discrimination and a kind of audiometry method that auditory function state is judged with this.Most basic, the most important form of language is to use mouth
Can " speech " that said understand speech in daily life, be the most important index for judging auditory function state.Check by
Can examination person understand speech, be the important inspection item evaluated people's auditory function.
Speech audiometry result can mutually be verified with pure tone test result, because pure tone test result can only illustrate tested ear
To the auditory acuity of each frequency pure tone, it cannot reflect the ability that its speech is discovered, differentiates, identifies and understand etc., and speech is surveyed
The component part as auditory function inspection is listened, the deficiency of pure tone test can be not only made up, also contributes to deaf lesion locations
Diagnosis, lesion provides faster reliable information after for example, diagnosing snail.It can be said that speech audiometry is checked in clinical audition
In it is particularly significant, be one of the routine inspection project that execute, but in reality, the application of speech audiometry is seldom, this can
Can be that following reason causes.
Speech audiometry method and process are complex, need subject listen to vocabulary material (speech audiometry material) then into
The voice of the re-reading test vocabulary of row, tester record the re-reading correctness of subject, then repeat next vocabulary and test, is anti-
It is multiple to carry out and record as a result, test process needs tester to concentrate on judging the re-reading voice of subject correctly or incorrectly,
The error led to consider that, also, test process spends the time very long, and usually each subject completes speech audiometry inspection and needs 40
Minute or even longer time, many medical institutions, hearing rehabilitation mechanism are caused to be unwilling to carry out, even if it faces with important
Bed meaning, also almost seldom application.
Utility model content
Automatic identification can be carried out the purpose of this utility model is to provide one kind and judges re-reading voice, automatic output test
As a result, testing efficiency is high, the speech audiometry of good test effect response identification test device.
One side according to the present utility model provides speech audiometry response identification test device, including voice input
Module, audio coding decoding module, DSP digital signal processing modules, information processing and memory module, voice output module and DAC
Conversion module；
The voice input module is connect with audio coding decoding module, and the voice input module is for obtaining subject's hair
The voice signal that goes out simultaneously is conveyed to audio coding decoding module；
The audio coding decoding module is connect with DSP digital signal processing modules and voice output module respectively, the sound
Frequency coding/decoding module is used for the voice analog signal coded digital signal received and the digital signal decoding Chinese idiom that will be received
Sound analog signal；
The DSP digital signal processing modules are connect with information processing and memory module, the DSP Digital Signal Processing mould
Block is used to the voice signal of subject be compared with tested speech signal and comparing result is fed back to information processing and is deposited
Store up module；
Described information processing and memory module are for handling and storing test information and output test result；
The DAC conversion modules are connect with DSP digital signal processing modules and voice output module respectively, and the DAC turns
Mold changing block is for being converted into voice analog signal by the voice digital signal received from DSP digital signal processing modules and transmitting
To voice output module.
In some embodiments, described information processing and memory module include CPU, FLASH memory, RAM memory
And eeprom memory, the FLASH memory, RAM memory and eeprom memory are bi-directionally connected with CPU respectively.
In some embodiments, speech audiometry response identification test device further include USB interface, the USB interface with
CPU is bi-directionally connected, and the USB interface with computer for connecting.
In some embodiments, the voice output module includes low-pass filter, the first power amplifier and first
The input terminal of earphone, the low-pass filter is connect with audio coding decoding module, the output end of the low-pass filter and first
The input terminal of power amplifier connects, and the output end of first power amplifier is connect with the first earphone.
In some embodiments, the voice output module further includes the second power amplifier and the second earphone, described
The input terminal of second power amplifier is connect with audio coding decoding module, the output end and the second ear of second power amplifier
Machine connects.
The utility model has the beneficial effects that：A kind of speech audiometry response identification test device is provided, by information
Preset tested speech in processing and memory module, when use, transfer tested speech by information processing and memory module and send DSP to
Digital signal processing module, then DAC conversion modules are sent to by DSP digital signal processing modules and are converted into voice analog signal simultaneously
Voice output module is sent to play out.Subject hears re-reading broadcasting voice after broadcasting voice, is received by voice input module
It is sent to after the voice of collection subject feedback and sends DSP digital signal processing modules after audio coding decoding module encodes to,
DSP digital signal processing modules comparison feedback voice and the frequency spectrum of tested speech are compared, if the frequency of two voice signals
It composes identical, is then recorded as correct, is otherwise recorded as mistake, DSP digital signal processing modules 3 are fed back to result is recorded at information
Reason and memory module 4 carry out storage analysis.Test parameter is selected according to the Hearing Threshold PTA of subject, it is strong to carry out multiple sound
It carries out testing under degree and feedback test result is to information processing and memory module 4, information processing and memory module 4 are by test result
It is depicted as chart and exports.Realize whether the re-reading voice messaging of automatic decision is correct, entire test process is not necessarily to test operator
Participation, reduce the input of staff, improve the efficiency of speech audiometry, reduce the subjectivity that speech audiometry judges.To speech
The universal of audiometry plays an important role, and so that clinical audition is checked more objective and accurate.
Description of the drawings
Fig. 1 is the structural schematic diagram of the speech audiometry response identification test device of one embodiment of the utility model；
Fig. 2 is that the speech audiometry of one embodiment of the utility model responds the flow diagram of recognizing test method.
Specific implementation mode
Utility model is described in further detail below in conjunction with the accompanying drawings.
Embodiment 1
Fig. 1 schematically shows a kind of speech audiometry response identification test dress of embodiment according to the present utility model
It sets.
Referring to Fig.1, speech audiometry response identification test device includes voice input module 1, audio coding decoding module 2, DSP
Digital signal processing module 3, information processing and memory module 4, voice output module 5, USB interface 6 and DAC conversion modules 7.
DSP (Digital Signal Processing) i.e. Digital Signal Processings；DAC(Digital to analog
Converter) i.e. digital analog converter.
Voice input module 1 is connect with audio coding decoding module 2, and voice input module 1 can be used for obtaining subject and send out
Voice signal and be conveyed to audio coding decoding module 2.
Audio coding decoding module 2 is connect with DSP digital signal processing modules 3 and voice output module 5 respectively.Audio is compiled
Decoder module 2 is for being encoded into digital signal by the voice analog signal received from audio coding decoding module 2 and sending DSP to
The voice digital signal received from DSP digital signal processing modules 3 can also be decoded Chinese idiom by digital signal processing module 3
Sound analog signal simultaneously sends voice output module 5 to and plays out.
DSP digital signal processing modules 3 are connect with information processing and memory module 4, and DSP digital signal processing modules 3 are used
In the voice signal of subject be compared with tested speech signal and by comparing result feed back to information processing and storage mould
Block 4.
Information processing and memory module 4 are for handling and storing test related data information and output test result.
DAC conversion modules 7 are connect with DSP digital signal processing modules 3 and voice output module 5 respectively, DAC conversion modules
7 for being converted into voice analog signal by the voice digital signal received from DSP digital signal processing modules 3 and sending language to
Sound output module 5 plays out.
Information processing and memory module 4 include CPU41, FLASH memory 42, RAM memory 43 and eeprom memory
44.FLASH memory 42, RAM memory 43 and EEPROM memories 44 are bi-directionally connected with CPU41 respectively.FLASH memory
42 for storing test speech sound data and other significant datas, and RAM memory 43 and eeprom memory 44 are for storing it
Its temporary information.
USB interface 6 and CPU41 is bi-directionally connected, and USB interface 6 can carry out interface for being connect with computer by computer software
Operation.
Voice output module 5 is put including low-pass filter 51, the first power amplifier 52, the first earphone 53, the second power
54 and second earphone 55 of big device.The input terminal of low-pass filter 51 is connect with audio coding decoding module 2 and DAC conversion modules 7, low
The output end of bandpass filter 51 is connect with the input terminal of the first power amplifier 52, the output end of the first power amplifier 52 and
One earphone 53 connects.The audio signal received from audio coding decoding module 2 and DAC conversion modules 7 can be passed through low-pass filtering
Device 51 is filtered, after amplified again by the first power amplifier 52 after played out by the first earphone 53.First earphone 53 is to supply
The earphone that testee uses, it is possible to provide preferably play sound quality.
The input terminal of second power amplifier 54 is connect with audio coding decoding module 2, the output of the second power amplifier 54
End is connect with the second earphone 55.Second earphone 55 is the earphone for monitoring for test operator, can listen to testee
The voice sent out refers to and is judged for operator.
Voice input module 1 includes microphone 11 and third power amplifier 12, microphone 11 and third power amplifier
12 input terminal connection, the output end of third power amplifier 12 are connect with audio coding decoding module 2.Voice input module 1 can
The speech audiometry response identification test device that the voice that subject sends out is input to the utility model is handled.
Embodiment 2
Fig. 2 schematically shows the test method of the speech audiometry response identification test device suitable for embodiment 1
Flow diagram.
With reference to Fig. 2, speech audiometry recognizing test method includes the following steps：
S1, setting basic parameter, selection test vocabulary；Basic parameter include starting to sound intensity, highest to sound intensity,
(sequentially, to sound intensity gradient, same test vocabulary number, test pattern (manually, automatically) and broadcasting order under sound intensity
At random) etc..Parameter setting can be carried out by computer interface.PTA (the pure tone of first subject are needed before testing begins
Audiometry) pure-tone average PTA is detected, according to the selection starting of the PTA results of subject to sound intensity.Test vocabulary
Table first passes through computer software and is stored in the FLASH memory 42 of information processing and memory module 4 in advance, using into can be as needed
It transfers.
S2, test vocabulary is transferred：The CPU41 of information processing and memory module 4 transfers selection from FLASH memory 42
The speech digit information of vocabulary and it is sent to DSP digital signal processing modules 3 one of in test vocabulary；
S3, transmission simultaneously play test vocabulary：DSP digital signal processing modules 3 send the speech digit information received
To DSP digital signal processing modules 3, the voice digital signal received is converted into voice mould by DSP digital signal processing modules 3
Output is filtered to the low-pass filter 51 of voice output module 5 after quasi- signal, and low-pass filter 51 is by filtered voice
Analog signal is sent to be sent the first earphone 53 to after the first power amplifier 52 is amplified and plays out again.First earphone 53
It is to the earphone used by degree person.
Subject, which hears, to carry out tested speech after tested speech re-reading, and is fed back by voice input module 1.
S4, feedback voice is obtained：The microphone 11 of voice input module 1 obtains the voice analog signal of tester's feedback simultaneously
It sends third power amplifier 12 to be amplified, third power amplifier 12 sends voice analog signal after amplification to audio
Coding/decoding module 2 is encoded, and audio coding decoding module 2 is by voice analog signal code conversion at being passed after voice digital signal
DSP digital signal processing modules 3 are given to be handled.
It S5, contrast test voice and feeds back voice and exports result：DSP digital signal processing modules 3 will compile solution from audio
The frequency of the voice signal received from information processing and memory module 4 in the frequency spectrum and S3 of the voice signal that code module 2 receives
Spectrum is compared, if the frequency spectrum of two voice signals is identical, is recorded as correctly, being otherwise recorded as mistake, DSP digital signals
Processing module 3 feeds back to information processing and memory module 4 by result is recorded.3 net subject of DSP digital signal processing modules simultaneously
The voice signal of feedback sends information processing and memory module 4 to and is stored by FLASH memory 42.
S6, it repeats S2~S5 and is exported completely until testing the vocabulary in vocabulary and play or receive interruptive command.
S7, it calculates and outputs test result：The CPU41 of information processing and memory module 4 according to the record received as a result,
The test result accuracy under different parameters is calculated, draw and exports the accuracy curve under different parameters to electric computer interface
And store the result into FLASH memory.
Step S4 further comprises：
S41, transmission feedback voice to the first earphone：DSP digital signal processing modules 3 send out the voice analog signal received
It gives low-pass filter 51 to be handled, by treated, voice analog signal is sent to the first power amplification to low-pass filter 51
Device 52 is amplified, and the first power amplifier 52 sends amplified voice analog signal to first earphone 53 and plays out；
Subject can hear the voice oneself sent out by the first earphone 53 as a result,.
S42, transmission feedback voice to the second earphone：DSP digital signal processing modules 3 send out the voice analog signal received
It gives the second power amplifier 54 to be amplified, the second power amplifier 54 sends amplified voice analog signal to second
Earphone 55 plays out.Test operator can hear the voice that subject sends out by the second earphone 55, to facilitate test operation
Person judges and operates.
Above-mentioned steps S41 and S42 are carried out at the same time.
Embodiment 3
Below with the normal (PTA of a pure tone audiometry<Subject 25dBHL) carries out concrete operations citing, in embodiment 2
On the basis of the operating process specifically tested it is as follows：
1, suitable test table is selected in vocabulary library, tests the selection of table without Compulsory Feature, it can be according to subject's
The factors such as age, educational level, mandarin ability select suitable vocabulary, can also be played to subject before official testing
Practice table is familiar with.
This system uses the speech vocabulary with good clinical application significance, interior to be equipped with single syllable, double-tone section and sentence three
The vocabulary of type, what clinically application was most is spondee disyllabic word table.
2, according to the selected startings of the Hearing Threshold PTA of subject to sound intensity, starting to sound intensity is increased on PTA
10dB, if the PTA of subject is 20dB, then starting is 30dB to sound intensity, and after the intensity of 30dB, system can be automatic
Increase the test that 5dB continues next intensity.
" automatic " and " manual " pattern is provided in system, for adjusting automatically into next test intensity or manually next
Test intensity, can be according to the use habit of operator depending on.
3, the play mode for determining test vocabulary, is usually defaulted as " random " play mode, in order to avoid by repeatedly testing
Subject remembers vocabulary sequence, influences test result.
4, after setting basic parameter, subject is allowed to put on conductance earphone (i.e. the first earphone 53) and microphone, it is desirable that by
It is re-reading that examination person hears that the whether of no matter not hearing after the voice in earphone will carry out, and hears what what reads, and microphone is for receiving
Subject's voice, such as " world " word is transmitted in earphone, subject needs to read through " world " again at once, the voice of subject
It records, the voice document recorded can pass through spectrum analysis, be compared with the frequency spectrum in " world " in system, two sounds
What frequency met is recorded as correctly, incongruent to be recorded as mistake, and next vocabulary will be played after as a result recording, and subject continues
It is re-reading.
It is same to the test for carrying out 10 vocabulary under sound intensity every time, then improve sound intensity 5dB and continue 10 vocabulary
Test.
The intensity that system default accuracy is 100% is to terminate intensity, if subject is on PTA in the intensity of 50dB
Experiment can be also automatically stopped by being still not up to 100%, and tester can select continue test or knot manually according to concrete condition
Beam is tested.
5, after obtaining the accuracy under each intensity, corresponding figure can be drawn out in test interface, and test junction fruit
Data are stored for test operator analytical judgment.
The utility model is re-reading to subject using audio comparison technology by the way of computer automatic identification and judgement
Voice document is compared with the voice document in system library, realizes the re-reading correctness of automatic decision, and test result is painted
The image of needs is made.The efficiency of speech audiometry is improved, the subjectivity that speech audiometry judges is reduced, has to the universal of speech audiometry
Important function makes clinical audition check more objective and accurate.
Above-described is only some embodiments of the utility model.For those of ordinary skill in the art,
Without departing from the concept of the present invention, various modifications and improvements can be made, these belong to practical new
The protection domain of type.
Claims (5)
1. speech audiometry response identification test device, which is characterized in that including voice input module (1), audio coding decoding module
(2), DSP digital signal processing modules (3), information processing and memory module (4), voice output module (5) and DAC conversion modules
(7)；
The voice input module (1) connect with audio coding decoding module (2), the voice input module (1) for obtain by
Voice signal that examination person sends out simultaneously is conveyed to audio coding decoding module (2)；
The audio coding decoding module (2) connect with DSP digital signal processing modules (3) and voice output module (5) respectively, institute
Audio coding decoding module (2) is stated to be used for the voice analog signal coded digital signal received and the digital signal solution that will be received
Code is at voice analog signal；
The DSP digital signal processing modules (3) connect with information processing and memory module (4), the DSP Digital Signal Processing
Module (3) is for being compared the voice signal of subject feedback with tested speech signal and comparing result being fed back to information
Processing and memory module (4)；
Described information processing and memory module (4) are for handling and storing test information and output test result；
The DAC conversion modules (7) connect with DSP digital signal processing modules (3) and voice output module (5) respectively, described
DAC conversion modules (7) are used to the voice digital signal received from DSP digital signal processing modules (3) being converted into voice mould
Quasi- signal simultaneously sends voice output module (5) to.
2. speech audiometry response identification test device according to claim 1, which is characterized in that described information is handled and deposited
Storage module (4) includes CPU (41), FLASH memory (42), RAM memory (43) and eeprom memory (44), described
FLASH memory (42), RAM memory (43) and eeprom memory (44) are bi-directionally connected with CPU (41) respectively.
3. speech audiometry response identification test device according to claim 2, which is characterized in that further include USB interface
(6), the USB interface (6) is bi-directionally connected with CPU (41), and the USB interface (6) with computer for connecting.
4. speech audiometry response identification test device according to claim 1, which is characterized in that the voice output module
(5) include low-pass filter (51), the first power amplifier (52) and the first earphone (53), the low-pass filter (51) it is defeated
Enter end to connect with audio coding decoding module (2), the output end of the low-pass filter (51) and the first power amplifier (52)
Input terminal connects, and the output end of first power amplifier (52) is connect with the first earphone (53).
5. speech audiometry response identification test device according to claim 4, which is characterized in that the voice output module
(5) further include the second power amplifier (54) and the second earphone (55), the input terminal and sound of second power amplifier (54)
Frequency coding/decoding module (2) connects, and the output end of second power amplifier (54) is connect with the second earphone (55).
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108091348A (en) * | 2018-01-31 | 2018-05-29 | 佛山博智医疗科技有限公司 | Speech audiometry response identification test device and method |
| CN109327785A (en) * | 2018-10-09 | 2019-02-12 | 北京大学 | A kind of hearing aid gain adaptation method and apparatus based on speech audiometry |
| CN111142777A (en) * | 2018-11-03 | 2020-05-12 | 广州市明领信息科技有限公司 | Big data storage system |
-
2018
- 2018-01-31 CN CN201820175991.0U patent/CN207867896U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108091348A (en) * | 2018-01-31 | 2018-05-29 | 佛山博智医疗科技有限公司 | Speech audiometry response identification test device and method |
| CN109327785A (en) * | 2018-10-09 | 2019-02-12 | 北京大学 | A kind of hearing aid gain adaptation method and apparatus based on speech audiometry |
| CN111142777A (en) * | 2018-11-03 | 2020-05-12 | 广州市明领信息科技有限公司 | Big data storage system |
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