CN110719559A - Bone conduction type sound processor signal acquisition and analysis system - Google Patents
Bone conduction type sound processor signal acquisition and analysis system Download PDFInfo
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- CN110719559A CN110719559A CN201910975998.XA CN201910975998A CN110719559A CN 110719559 A CN110719559 A CN 110719559A CN 201910975998 A CN201910975998 A CN 201910975998A CN 110719559 A CN110719559 A CN 110719559A
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- vibration
- signal processing
- bone conduction
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R25/00—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception
- H04R25/30—Monitoring or testing of hearing aids, e.g. functioning, settings, battery power
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R25/00—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception
- H04R25/50—Customised settings for obtaining desired overall acoustical characteristics
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2460/00—Details of hearing devices, i.e. of ear- or headphones covered by H04R1/10 or H04R5/033 but not provided for in any of their subgroups, or of hearing aids covered by H04R25/00 but not provided for in any of its subgroups
- H04R2460/13—Hearing devices using bone conduction transducers
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- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Neurosurgery (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Details Of Audible-Bandwidth Transducers (AREA)
Abstract
The invention discloses a signal acquisition and analysis system of a bone conduction type sound processor, which comprises a vibration signal conversion part, a vibration acquisition part, an audio signal acquisition device, a signal processing unit, an excitation part and an input and output part, wherein the vibration signal conversion part is connected with the vibration acquisition part and transmits a vibration signal to the signal processing unit; the audio signal collector is connected with the signal processing unit and used for transmitting the electrical signal converted from the audio into the signal processing unit; the exciting part is connected with the signal processing unit, outputs the signal output by the amplifier of the signal processing unit and forms a sound signal; the input and output part is connected with the signal processing unit and used for inputting instructions and displaying results; and the signal processing unit is used for processing, judging and outputting the signals by using the general processor. The invention realizes the performance index of the bone conduction hearing aid detected by a magnetic adsorption mode and provides a detection mode for the detection of the bone conduction hearing aid transmitted through the skin.
Description
Technical Field
The invention belongs to the field of medical instruments, and particularly relates to a signal acquisition and analysis system of a bone conduction type sound processor.
Background
The bone conduction hearing aid uses the skull of a user as a passage for sound transmission and input into the inner ear, and for a patient with conductive deafness, the bone conduction hearing aid bypasses the outer ear and the middle ear of the patient and directly transmits the sound to the normal cochlea of the patient through the metal implant; for a single deaf patient, the bone conduction hearing aid passes sound through the skull from the patient's deaf side to the normal side. The implant stimulates the nerves of the inner ear by vibrating the skull and the inner ear, so that the hearing of a patient is recovered. The bone conduction hearing aid device can also be connected to an FM system or other smart device by means of a miniature FM receiver or a bluetooth device.
The lack of a device or system that can measure the effect of hearing aid output when a patient is using a bone conduction hearing aid, and therefore the need exists to design a vibration signal acquisition and analysis system that can detect and confirm the actual sounds heard by the patient or the actual sound characteristics generated by the hearing aid.
Other testing devices are devices developed by hearing enterprises or devices improved from air conduction hearing aid testing devices, the devices developed by enterprises are limited by research experience and capability of the enterprises, and often do not meet requirements of bone conduction hearing aid professional companies and enterprises, and complex differences of the air conduction hearing aids and the bone conduction hearing aids in use purposes, working principles and working environments cause that no clear method is provided for converting the devices from measurement air conduction hearing aids into measurement bone conduction hearing aids.
Disclosure of Invention
In view of the above, the present invention provides a signal collecting and analyzing system for a bone conduction type sound processor, comprising a vibration signal converting part, a vibration collecting part, an audio signal collector, a signal processing unit, an exciting part and an input/output part, wherein,
the vibration signal conversion part is connected with the vibration acquisition part and transmits the vibration signal to the signal processing unit;
the audio signal collector is connected with the signal processing unit and used for transmitting the electrical signal converted from the audio into the signal processing unit;
the exciting part is connected with the signal processing unit, outputs the signal output by the amplifier of the signal processing unit and forms a sound signal;
the input and output part is connected with the signal processing unit and used for inputting instructions and displaying results;
and the signal processing unit processes, judges and outputs the signals by using a general processor.
Preferably, the vibration signal conversion section includes a quartz vibration signal sensor.
Preferably, the vibration signal conversion unit couples the bone conduction hearing aid to the bone conduction hearing aid in a magnetic adsorption or screw fixation manner, so as to realize energy transmission.
Preferably, the vibration signal conversion section and the excitation section are disposed in a sound-deadening box.
Preferably, the audio signal collector comprises an acceleration sensor or a force sensor.
Preferably, the height difference between the vibration signal conversion part and the audio signal collector is not more than 2cm, and the distance from the vibration signal conversion part to the excitation part is the same.
Preferably, the excitation part comprises a loudspeaker with or without a power amplifier.
Preferably, the vibration signal acquisition unit includes an analog-to-digital conversion circuit.
Preferably, the audio signal collector comprises an analog-to-digital conversion circuit.
Preferably, the input and output part includes a display, a mouse, and a keyboard.
The beneficial effects of the invention at least comprise:
1. the performance index of the bone conduction hearing aid is detected in a magnetic adsorption mode for the first time, and a detection system is provided for the detection of the bone conduction hearing aid through percutaneous transmission;
2. the standard quartz vibration signal sensor is used, so that the detection accuracy and convenience are improved;
3. the detection of the bone conduction hearing aid by the invention improves the yield, reduces the cost and is suitable for batch production.
Drawings
In order to make the object, technical scheme and beneficial effect of the invention more clear, the invention provides the following drawings for explanation:
fig. 1 is a block diagram of a bone conduction sound processor signal acquisition analysis system in accordance with an embodiment of the present invention;
fig. 2 is a schematic diagram of an exemplary application of a bone conduction sound processor signal acquisition analysis system in accordance with an embodiment of the present invention;
fig. 3 is a schematic circuit diagram of a vibration signal conversion unit in a signal acquisition and analysis system of a bone conduction sound processor according to an embodiment of the present invention.
Detailed Description
Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
Referring to fig. 1-3, a bone conduction sound processor signal acquisition and analysis system according to an embodiment of the present invention is shown, including a vibration signal transformation portion 10, a vibration acquisition portion 20, an audio signal acquisition device 30, a signal processing unit 40, an excitation portion 50, and an input-output portion 60, wherein,
the vibration signal conversion part 10 is connected with the vibration acquisition part 20 and transmits the vibration signal to the signal processing unit 40;
the audio signal collector 30 is connected with the signal processing unit 40, and transmits the electrical signal converted from the audio into the signal processing unit 40;
the exciting section 50 is connected to the signal processing unit 40, outputs a signal output from the amplifier of the signal processing unit 40 and forms an acoustic signal;
the input/output unit 60 is connected to the signal processing unit 40, and inputs commands and display results;
and a signal processing unit 40 for processing, judging and outputting the signal using a general-purpose processor.
Detailed description of the preferred embodiments
The vibration signal conversion unit 10 includes a quartz vibration signal sensor, and couples the bone conduction hearing aid to the quartz vibration signal sensor by magnetic attraction or screw fixation, thereby realizing energy transmission.
The vibration signal conversion part 10 and the excitation part 50 are arranged in a silencing box; the audio signal collector 30 includes an acceleration sensor or a force sensor. The height difference between the vibration signal conversion part 10 and the audio signal collector 30 is not more than 2cm, and the distance from the excitation part 50 is the same. The excitation section 50 includes a speaker with or without a power amplifier.
The vibration signal acquisition part and the audio signal acquisition device 30 both comprise analog-to-digital conversion circuits; the input/output unit 60 includes a display, a mouse, and a keyboard.
The signal processing unit 40 is a general-purpose computer, and the vibration signal acquisition unit and the signal processing unit 40 are mounted inside the same housing 4. The rigid base is provided with a vibration signal conversion part 10 connected with an interface 43 on the shell 4, an excitation part 50 connected with an interface 41 on the shell 4, and an audio signal collector 30 connected with an interface 42 on the shell 4. Interfaces 44 and 45 are reserved for use by test audio signal collector 30; a display, mouse and keyboard 60 are connected to the interface at the rear of the housing 4.
The signal processing unit 40 drives the excitation part 50 to emit a sound signal, the audio signal collector 30 collects and transmits the sound signal to the signal processing unit 40, and the signal processing unit 40 adjusts the output intensity of the excitation part 50 according to the transmitted signal. The bone conduction hearing aid 11 is coupled with the vibration signal conversion part 10 in a screw or magnetic adsorption mode, so that the vibration signal can be coupled into the vibration signal conversion part 10; the vibration signal conversion unit 10 converts the vibration signal into an electric signal and transmits the electric signal to the signal processing unit 40.
Embodiments of vibration signal conversion section
Referring to fig. 3, the sensor comprises a quartz vibration signal sensor 31, a coaxial cable or twisted pair 32 and a direct current power supply 33, wherein the quartz vibration signal sensor 31 is connected with a MOSFET micro-charge amplifier, and the amplifier converts a high-resistance charge signal of the quartz vibration signal sensor 31 into a low-resistance voltage signal for output and outputs the low-resistance voltage signal through the coaxial cable or twisted pair 32; the power supply of the vibration signal conversion part 10 can be provided by an external direct current power supply 33 or directly connected to the inside of the component by a power supply built in the signal processing unit 40 through a coaxial line or a twisted pair 32.
The signal processing unit 40 calculates detailed indicators of the bone conduction hearing aid 11 according to the data; and outputs the calculated index to the display 60.
Finally, it is noted that the above-mentioned preferred embodiments illustrate rather than limit the invention, and that, although the invention has been described in detail with reference to the above-mentioned preferred embodiments, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the scope of the invention as defined by the appended claims.
Claims (10)
1. A signal acquisition and analysis system of a bone conduction type sound processor is characterized by comprising a vibration signal conversion part, a vibration acquisition part, an audio signal acquisition device, a signal processing unit, an excitation part and an input and output part, wherein,
the vibration signal conversion part is connected with the vibration acquisition part and transmits the vibration signal to the signal processing unit;
the audio signal collector is connected with the signal processing unit and used for transmitting the electrical signal converted from the audio into the signal processing unit;
the exciting part is connected with the signal processing unit, outputs the signal output by the amplifier of the signal processing unit and forms a sound signal;
the input and output part is connected with the signal processing unit and used for inputting instructions and displaying results;
and the signal processing unit processes, judges and outputs the signals by using a general processor.
2. The system of claim 1, wherein the vibration signal conversion portion comprises a quartz vibration signal sensor.
3. The system according to claim 1, wherein the vibration signal converter couples the bone conduction hearing aid to the vibration signal converter by magnetic attraction or screw fixation, thereby realizing energy transmission.
4. The system of claim 1, wherein the vibration signal conversion section and the excitation section are disposed in an anechoic chamber.
5. The system of claim 1, wherein the audio signal collector comprises an acceleration sensor or a force sensor.
6. The system of claim 1, wherein the vibration signal conversion part and the audio signal collector are arranged at a height difference of not more than 2cm and at the same distance from the excitation part.
7. The system of claim 1, wherein the excitation portion comprises a speaker with or without a power amplifier.
8. The system of claim 1, wherein the vibration signal acquisition portion comprises an analog-to-digital conversion circuit.
9. The system of claim 1, wherein the audio signal collector comprises an analog-to-digital conversion circuit.
10. The system of claim 1, wherein the input and output portion comprises a display, a mouse, and a keyboard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910975998.XA CN110719559A (en) | 2019-10-15 | 2019-10-15 | Bone conduction type sound processor signal acquisition and analysis system |
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| CN201910975998.XA CN110719559A (en) | 2019-10-15 | 2019-10-15 | Bone conduction type sound processor signal acquisition and analysis system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111405450A (en) * | 2020-02-26 | 2020-07-10 | 歌尔股份有限公司 | Simulated human head device for bone conduction equipment test and test method |
| CN111565354A (en) * | 2020-05-26 | 2020-08-21 | 北京瑞森新谱科技股份有限公司 | Testing method and testing system for bone conduction earphone |
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2019
- 2019-10-15 CN CN201910975998.XA patent/CN110719559A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111405450A (en) * | 2020-02-26 | 2020-07-10 | 歌尔股份有限公司 | Simulated human head device for bone conduction equipment test and test method |
| CN111405450B (en) * | 2020-02-26 | 2024-04-02 | 歌尔股份有限公司 | Simulated human head device for bone conduction equipment test and test method |
| CN111565354A (en) * | 2020-05-26 | 2020-08-21 | 北京瑞森新谱科技股份有限公司 | Testing method and testing system for bone conduction earphone |
| CN111565354B (en) * | 2020-05-26 | 2021-05-04 | 北京瑞森新谱科技股份有限公司 | Testing method and testing system for bone conduction earphone |
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