CN106308812A - Portable hearing detection device - Google Patents

Abstract

The invention discloses a portable hearing detection device, which is arranged in an earphone and electrically connected with an electronic device, wherein the electronic device provides an audio signal, and the portable hearing detection device comprises: the microphone, the automatic noise elimination module, the mixer and the output unit are arranged in the earphone, an external noise signal is received by the microphone, the microphone converts an opposite sound wave signal which has the same amplitude as the noise signal and is opposite in phase through the automatic noise elimination module, the opposite sound wave signal is output to the mixer, and the opposite sound wave signal is mixed with an audio signal input by the electronic device and is transmitted to the output unit. The opposite sound wave signal output by the output unit and the external noise signal can be mutually offset, only the audio signal transmitted by the electronic device is heard, and hearing detection is carried out through the audio signal.

Description

Portable Hearing Testing Device

technical field

The invention relates to a hearing detection device, in particular to a self-detecting portable hearing detection device.

Background technique

Sound waves originally existed as invisible energy in the air. After being collected by the ear shell, they were transmitted to the outer ear, then to the inner ear through the middle ear, and finally to the brain, where they became intelligible and useful information. Therefore, when there are lesions in any part of the outer ear, middle ear, inner ear auditory nerve, and auditory center of the brain, hearing impairment will result. When hearing loss occurs, you may find yourself asking others to repeat what has just been said, especially in noisy environments. At home, you may unconsciously turn up the volume of the radio and TV, or feel that other people's speech sounds vague and soft, etc. After the hearing continues to deteriorate, it takes a lot of energy to communicate with others.

Traditionally, when testing hearing, the subject will enter the noise-free room and wear earmuffs inside the noise-free room. The transmission line of the earmuffs is plugged into a testing instrument. At this time, the tester outside the noise-free room will operate The detection instrument produces sound in the left ear or right ear of the earmuff. When the subject hears the sound in the left ear or the right ear, he will press the button to indicate that the sound is heard in the left ear or the right ear. The button pressed by the tester is used to judge whether the hearing of the testee is normal.

Because the volume of the above-mentioned ear hearing testing instrument is too large, it must be installed in a hospital or a relevant testing unit. limit.

Contents of the invention

The main purpose of the present invention is to solve the traditional limitation of not being able to carry it out. The present invention reduces the size of the hearing detection device and installs it in the earphone and connects it with a portable electronic device, so that the user can carry it out and use it. It also has an anti-noise function and does not require Use in a noise-free environment.

Another object of the present invention is to have a dual tone multi-frequency signal control module in the hearing testing device to receive the audio signal output by the portable electronic device, and to set or adjust the parameters of the automatic noise canceling module of the hearing testing device.

In order to achieve the above object, the present invention provides a portable hearing detection device, which is installed in the earphone and electrically connected with the electronic device, and the electronic device provides an audio signal, including:

a microphone to be installed inside the earphone;

An automatic noise cancellation module is installed inside the earphone and is electrically connected with the microphone;

a mixer to be installed inside the earphone and electrically connected to the automatic noise cancellation module and the electronic device;

an output unit installed inside the earphone and electrically connected with the mixer;

Wherein, the microphone is used to receive an external noise signal, and the automatic noise elimination module converts the opposite sound wave signal with the same amplitude and opposite phase as the noise signal, and outputs it to the mixer, and mixes it with the audio signal input by the electronic device and sends it to the On the output unit, the opposite sound wave signal output by the output unit will cancel each other with the external noise signal, only the audio signal transmitted by the electronic device is heard, and the hearing test is performed through the audio signal.

Further, wherein, the audio signal is 125HZ to 8KHZ.

Further, wherein, the output unit is a speaker.

Further, wherein, the electronic device is a portable electronic device.

Further, wherein, the portable electronic device is a tablet computer, a notebook computer or a smart phone.

The present invention also provides a portable hearing detection device, which is installed in the earphone and electrically connected with the electronic device, and the electronic device provides an audio signal, including:

a microphone to be installed inside the earphone;

An automatic noise cancellation module is installed inside the earphone and is electrically connected with the microphone;

a mixer to be installed inside the earphone and electrically connected to the automatic noise cancellation module and the electronic device;

an output unit installed inside the earphone and electrically connected with the mixer;

A dual-tone multi-frequency signal control module is installed inside the earphone and is electrically connected with the electronic device and the automatic noise cancellation module;

Wherein, the microphone is used to receive an external noise signal, and the automatic noise elimination module converts the opposite sound wave signal with the same amplitude and opposite phase as the noise signal, and outputs it to the mixer, and mixes it with the audio signal input by the electronic device and sends it to the On the output unit, the opposite sound wave signal output by the output unit will cancel each other with the external noise signal, only the audio signal transmitted by the electronic device is heard, and the hearing test is performed through the audio signal; when the hearing is not tested, The dual-tone multi-frequency signal control module receives the audio signal of the electronic device, and sets or adjusts the parameters of the automatic noise elimination module.

Further, wherein, the audio signal is 125HZ to 8KHZ.

Further, wherein, the output unit is a speaker.

Further, wherein, the electronic device is a portable electronic device.

Further, wherein, the portable electronic device is a tablet computer, a notebook computer or a smart phone.

The invention solves the traditional limitation of not being able to carry it out, and reduces the size of the hearing detection device and installs it in the earphone to connect with the portable electronic device, so that the user can carry it out and use it, and has anti-noise function, so it does not need to be used in a noise-free environment. There is a dual-tone multi-frequency signal control module in the hearing detection device to receive the audio signal output by the portable electronic device, and can set or adjust the parameters of the automatic noise elimination module of the hearing detection device.

Description of drawings

FIG. 1 is a schematic circuit block diagram of a portable hearing detection device according to a first embodiment of the present invention.

Fig. 2 is a schematic diagram of the hearing detection device in Fig. 1 being connected to an electronic device for use.

FIG. 3 is a schematic circuit block diagram of a portable hearing detection device according to a second embodiment of the present invention.

In the figure, earphone 10

Microphone 1

Automatic Noise Cancellation Module 2

mixer 3

output unit 4

DTMF signal control module 5

electronic device 20 .

detailed description

The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, so that those skilled in the art can better understand the present invention and implement it, but the examples given are not intended to limit the present invention.

Hereby, the technical content and detailed description of the present invention are described as follows in conjunction with the drawings:

Please refer to FIG. 1 , which is a schematic circuit block diagram of a portable hearing detection device according to a first embodiment of the present invention. As shown in the figure: the portable hearing detection device of the present invention comprises: a microphone (microphone) 1, an automatic noise elimination module (automatic noise canceller module) 2, a mixer (mixer) 3 and an output unit 4.

The microphone 1 is installed inside the earphone 10 for receiving external noise signals, and then transmits the received noise signals to the automatic noise canceling module 2 .

The automatic noise canceling module 2 is installed inside the earphone 10 and is electrically connected with the microphone 1 to receive the external noise signal output by the microphone 1, and convert the external noise signal into an external noise signal with the same amplitude and opposite phase The opposite acoustic signal output.

The mixer 3 is installed inside the earphone 10, and is electrically connected with the automatic noise canceling module 2 and the electronic device (not shown in the figure), and the mixer 3 is used to receive the output of the automatic noise canceling module 2 The opposite sound wave signal and the audio signal for detection input by the electronic device are mixed and output.

The output unit 4 is installed inside the earphone 10 and electrically connected with the mixer 3 to output the opposite sound wave signal and audio signal mixed by the mixer 3 . In this figure, the output unit 4 is a speaker.

Please refer to FIG. 1 and FIG. 2 , the circuit block of the portable hearing test device according to the first embodiment of the present invention and the schematic diagram of the connection and use state of the hearing test device and the electronic device in FIG. 1 . As shown in the figure: when the subject is performing a hearing test, the input end of the earphone 10 is plugged into the electronic device (tablet computer, notebook computer, smart phone) 20, and the earphone 10 is worn on the head. When the microphone 1 receives an external noise signal and transmits the noise signal to the automatic noise elimination module 2, the automatic noise elimination module 2 converts the external noise signal into an opposite sound wave signal with the same amplitude and opposite phase as the external noise signal for output To the mixer 3, while the opposite sound wave signal is output to the mixer 3, the electronic device 20 also outputs an audio signal from 125HZ to 8KHZ to the mixer 3 to be mixed with the opposite sound wave signal and sent to the output unit 4, at this time, the opposite sound wave signal and the external noise signal will cancel each other, so that the subject cannot hear the external noise signal, so that the subject can only hear the audio signal transmitted by the electronic device 20 from 125HZ to 8KHZ, and use the audio signal to perform hearing detection on the subject.

Please refer to FIG. 3 , which is a schematic circuit block diagram of a portable hearing detection device according to a second embodiment of the present invention. As shown in the figure: between the electronic device 20 and the automatic noise elimination module 2, a dual-tone multi-frequency signal control module (Dual-Tone Multi-Frequency controller module) 5 is the dial tone generated when a general telephone is dialed. In the parameter setting or adjustment of the automatic noise elimination module 2, it is proposed to add a dual-tone multi-frequency signal control module 5, which can control the audio frequency of the electronic device 20. The signal is properly converted and becomes a signal for controlling the automatic noise elimination module 2 . For example: if the value in the control position "12" of the automatic noise canceling module 2 is to be set to "34", then the electronic device 20 can send "*77#1234" (Note: *77# is the beginning identifier, Of course, it can also be changed to other codes, but it will only work if it meets the requirements). The dual-tone multi-frequency signal control module 5 performs parameter setting or adjustment of the automatic noise elimination module 2 , and does not need an additional external I/O device for parameter setting or adjustment of the automatic noise elimination module 2 .

Further, after the detection is completed, the subject or the tester can connect the hearing test result to the peripheral device (such as a printer) through the wireless transmission module (such as the bluetooth module or wifi module) of the electronic device 20 or to the peripheral device through the Internet. print it out.

The above-mentioned embodiments are only preferred embodiments for fully illustrating the present invention, and the protection scope of the present invention is not limited thereto. Equivalent substitutions or transformations made by those skilled in the art on the basis of the present invention are all within the protection scope of the present invention. The protection scope of the present invention shall be determined by the claims.

Claims (10)

1. a portable hearing test apparatus, it is characterised in that be installed in earphone and be electrically connected with electronic installation, this electronic installation provide an audio signal, including:

One mike, to be installed on inside this earphone；

One automatic noise cancellation module, to be installed on inside earphone, and is electrically connected with this mike；

One blender, to be installed on inside this earphone, and is electrically connected with this automatic noise cancellation module and this electronic installation；

One output unit, is installed on inside earphone, and is electrically connected with this blender；

Wherein, with the noise signal outside the reception of this mike, identical with this noise amplitude signal through the conversion of this automatic noise cancellation module, the contrary acoustic signals of opposite in phase exports to this blender, and the audio signal inputted with this electronic installation mixes and is sent on this output unit, export this contrary acoustic signals at this output unit to cancel out each other with the noise signal of this outside, only hear the audio signal transmitted by this electronic installation, and carry out Hearing esamination by this audio signal.

2. portable hearing test apparatus as claimed in claim 1, it is characterised in that wherein, this audio signal is 125HZ to 8KHZ.

3. portable hearing test apparatus as claimed in claim 1, it is characterised in that wherein, this output unit is loudspeaker.

4. portable hearing test apparatus as claimed in claim 1, it is characterised in that wherein, this electronic installation is portable electronic equipment.

5. portable hearing test apparatus as claimed in claim 4, it is characterised in that wherein, this portable electronic equipment is tablet PC, notebook computer or intelligent mobile phone.

6. a portable hearing test apparatus, it is characterised in that be installed in earphone and be electrically connected with electronic installation, this electronic installation provide an audio signal, including:

One mike, to be installed on inside this earphone；

One automatic noise cancellation module, to be installed on inside earphone, and is electrically connected with this mike；

One blender, to be installed on inside this earphone, and is electrically connected with this automatic noise cancellation module and this electronic installation；

One output unit, to be installed on inside earphone, and is electrically connected with this blender；

One touch-tone signal control module, is installed on inside this earphone, and is electrically connected with this electronic installation and this automatic noise cancellation module；

Wherein, with the noise signal outside the reception of this mike, identical with this noise amplitude signal through the conversion of this automatic noise cancellation module, the contrary acoustic signals of opposite in phase exports to this blender, and the audio signal inputted with this electronic installation mixes and is sent on this output unit, export this contrary acoustic signals at this output unit to cancel out each other with the noise signal of this outside, only hear the audio signal transmitted by this electronic installation, and carry out Hearing esamination by this audio signal；When not detecting audition, this touch-tone signal control module receives the audio signal of electronic installation, and this automatic noise cancellation module is carried out parameter setting or adjustment.

7. portable hearing test apparatus as claimed in claim 6, it is characterised in that wherein, this audio signal is 125HZ to 8KHZ.

8. portable hearing test apparatus as claimed in claim 6, it is characterised in that wherein, this output unit is loudspeaker.

9. portable hearing test apparatus as claimed in claim 6, it is characterised in that wherein, this electronic installation is portable electronic equipment.

10. portable hearing test apparatus as claimed in claim 9, it is characterised in that wherein, this portable electronic equipment is tablet PC, notebook computer or intelligent mobile phone.