CN110890149A - Toned electronic artificial larynx controlled by touch panel and tone adjusting method - Google Patents
Toned electronic artificial larynx controlled by touch panel and tone adjusting method Download PDFInfo
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- CN110890149A CN110890149A CN201910975792.7A CN201910975792A CN110890149A CN 110890149 A CN110890149 A CN 110890149A CN 201910975792 A CN201910975792 A CN 201910975792A CN 110890149 A CN110890149 A CN 110890149A
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- G—PHYSICS
- G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
- G16H—HEALTHCARE INFORMATICS, i.e. INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR THE HANDLING OR PROCESSING OF MEDICAL OR HEALTHCARE DATA
- G16H40/00—ICT specially adapted for the management or administration of healthcare resources or facilities; ICT specially adapted for the management or operation of medical equipment or devices
- G16H40/60—ICT specially adapted for the management or administration of healthcare resources or facilities; ICT specially adapted for the management or operation of medical equipment or devices for the operation of medical equipment or devices
- G16H40/63—ICT specially adapted for the management or administration of healthcare resources or facilities; ICT specially adapted for the management or operation of medical equipment or devices for the operation of medical equipment or devices for local operation
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/033—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor
- G06F3/0354—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor with detection of 2D relative movements between the device, or an operating part thereof, and a plane or surface, e.g. 2D mice, trackballs, pens or pucks
- G06F3/03547—Touch pads, in which fingers can move on a surface
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
- G06F3/0484—Interaction techniques based on graphical user interfaces [GUI] for the control of specific functions or operations, e.g. selecting or manipulating an object, an image or a displayed text element, setting a parameter value or selecting a range
- G06F3/04847—Interaction techniques to control parameter settings, e.g. interaction with sliders or dials
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
- G06F3/0487—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser
- G06F3/0488—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser using a touch-screen or digitiser, e.g. input of commands through traced gestures
- G06F3/04883—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser using a touch-screen or digitiser, e.g. input of commands through traced gestures for inputting data by handwriting, e.g. gesture or text
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/16—Sound input; Sound output
- G06F3/165—Management of the audio stream, e.g. setting of volume, audio stream path
Abstract
The invention provides a device for adjusting the sounding tone of an electronic artificial larynx by using a touch pad and a tone adjusting method. A user slides a finger on the touch pad according to the Chinese tone change rule, and the touch pad control system converts the touch position of the finger into a position signal; the signal processing system generates a fundamental frequency control signal according to the position signal, drives the micro electric-force conversion system to vibrate, and generates electronic artificial larynx voices with tones. The method can solve the problem that the speech of the electronic artificial larynx can not send out Chinese tones, and promotes the application of the electronic artificial larynx in Chinese people.
Description
Technical Field
The invention belongs to the field of voice rehabilitation of patients with voice loss, and relates to a voice-modulated electronic artificial larynx controlled by a touch pad and a voice modulation method.
Background
The voice is the most important, most convenient and most basic communication means for human, and is the first attribute of human language, the language realizes the social function by the voice, human conveys emotion and communication thought by voice, and the voice plays an important promoting role in the development of human civilization. However, due to pathological changes of vocal organs, traumatic accidents and other reasons, many patients are forced to receive laryngectomy, and the vocal cords are also cut off together when the throat is removed in the operation, so that the patients cannot speak and lose speech function. The method not only seriously reduces the life quality of the patient, but also brings great psychological pressure to the patient, so that the patient can not return to the society due to self-closure and depression. The absence of speech causes great pain to both the patient and the surrounding people.
The electronic artificial larynx is a rehabilitation aid which utilizes an external sound source to replace an original vocal cord to enable a patient to recover the vocal function, has the advantages of simplicity and convenience in use, flood and bright vocal function, convenience in maintenance and the like, becomes the most popular voice vocal rehabilitation aid used at present, and is the first choice for patients with laryngectomy. However, the most important defects are that only voice with single fundamental frequency can be sent out, voice with lack of change of fundamental frequency is mechanized, difficult to be accepted by listeners, and intelligibility is low. Because the Chinese language is a tone language, four tones (yin ping, yang ping, rising and falling) play an irreplaceable role in voice communication, the fundamental frequency is a basic element forming the tones, and an electronic larynx lacking the fundamental frequency change cannot send other tones except for yin ping, so that huge obstruction is caused to the use of the electronic artificial larynx by domestic patients, and the use of the electronic artificial larynx is limited. How to change the sounding fundamental frequency of the electronic artificial larynx in height has important research value and application prospect, and is also a research hotspot in the aspect of improving the speech of the electronic artificial larynx at present. At present, electronic artificial larynx voice fundamental frequency improvement methods using physiological signals such as pressure, electromyographic signals, fistula air pressure airflow and the like are continuously proposed, but the methods have the defects of difficult realization, complex device, high training difficulty, incomplete fundamental frequency improvement and the like.
The inventor provides an electronic artificial larynx base frequency adjusting method for acquiring finger pressure signals by using a pressure sensor in a patent of 'finger pressure type base frequency adjusting electronic artificial larynx' (patent number: ZL200910090549.3), and the method can realize the change of the sounding base frequency of the electronic artificial larynx. However, the method can only improve the fundamental frequency of the sounding when the finger is pressed down, and cannot realize the change of the fundamental frequency from high to low, thereby failing to simulate the sounding of Chinese tones. The inventor further proposed an improved fundamental frequency adjusting method in the patent "electronic artificial larynx system for adjusting fundamental frequency of utterance using a scroll wheel and its fundamental frequency adjusting method" (publication number: CN201610270925.7), in which the scroll wheel is pressed as a switching signal of utterance by using up-and-down scrolling of the scroll wheel to realize high-low variation of fundamental frequency of electronic larynx speech. The method makes up the defect that the fundamental frequency of the electronic artificial larynx sound production cannot be reduced by adjusting the fundamental frequency by finger pressing to a certain extent. However, the invention has the defects that the sounding fundamental frequency changes from the same fundamental frequency value during each sounding, and the fundamental frequency starting points of each tone of Chinese tones are different, so that the application of the electronic artificial larynx invention in the sounding of Chinese tones is limited.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide a device and a tone adjusting method capable of adjusting the sounding tone of an electronic artificial larynx by using a touch pad, and solve the problem that the electronic artificial larynx can not send Chinese tones.
In order to solve the technical problem, the invention provides a voice-modulated electronic artificial larynx controlled by a touch panel.
The design of the miniature electric-power conversion system can refer to the invention patents issued by the inventor: the finger-pressing type fundamental frequency adjustment electronic artificial larynx (patent number: ZL 200910090549.3). It should be noted that the present invention is intended to protect the device for controlling the electronic artificial larynx phonation tone using the touch pad and the method for controlling the electronic artificial larynx phonation tone using the touch pad, and the micro electric-to-force conversion system used in the system is not in the claims.
Further, the touch panel control system includes an insulating housing, a capacitive touch panel, and a touch position detection circuit. The insulating shell covers the capacitive touch pad and is used for finger contact and prompting a finger touch position, and meanwhile, the fingers and the capacitive touch pad can be isolated; the plurality of metal contacts on the capacitive touch pad can form a variable capacitance with a touched finger; the touch position detection circuit can detect the capacitance value changes of different metal contacts on the capacitance touch pad, calculate the touch position and send the position signal to the signal processing system for reading.
Further, the capacitive touch panel includes an insulating substrate, a metal contact, and a lead. The insulating substrate is used for bearing a plurality of metal contacts; the metal contact is used for receiving finger charges to change the capacitance value; the lead lines are used for connecting the metal contacts with the touch position detection circuit.
The signal processing system comprises a single chip microcomputer and a fundamental frequency control circuit. The single chip microcomputer converts the touch position signal into a fundamental frequency control signal according to a conversion algorithm and provides the fundamental frequency control signal to a fundamental frequency control circuit; the base frequency control circuit amplifies the received base frequency control signal and drives the micro electric-force conversion system to vibrate, so that electronic artificial larynx voices with changed base frequencies are sent out.
In addition, the invention provides a method for adjusting the electronic artificial larynx tones by using the touch panel, which comprises the following steps:
the method comprises the following steps: a user slides a finger on the touch pad control system according to the change characteristics of the fundamental frequency of the four tones of Mandarin;
step two: the touch panel control system collects capacitance changes on the capacitance touch panel, calculates finger touch positions and sends position signals;
step three: the signal processing system converts the position signal into a fundamental frequency control signal and provides the fundamental frequency control signal to a fundamental frequency control circuit;
step four: the fundamental frequency control circuit amplifies the fundamental frequency control signal and drives the micro electric-force conversion system to vibrate to generate electronic artificial larynx voices with tones.
According to an aspect of the present invention, there is provided a toned electronic artificial larynx system controlled using a touch panel, characterized by comprising:
a power supply module for supplying power to the voice-modulated electronic artificial throat system,
a touch panel control system for detecting a touch position of a finger of a user and generating a position signal representing the touch position,
a signal processing system for converting the position signal into a fundamental frequency control signal with tones,
a micro electric-force conversion system for converting the fundamental frequency control signal into mechanical vibration to generate electronic artificial larynx voice with tone,
wherein:
the touch panel control system includes:
a capacitive touch pad for forming a varying capacitance with a finger of a user touching on the insulating housing, the insulating housing for isolating the finger of the user from the capacitive touch pad,
and the touch position detection circuit is used for acquiring the change of the capacitance, determining the position signal and providing the position signal to the signal processing system.
According to another aspect of the present invention, there is provided a tone adjusting method based on the above-mentioned toned electronic artificial larynx system controlled using a touch panel, characterized by comprising:
A) according to the action of sliding a finger on a touch pad control system by a user according to the change characteristics of the fundamental frequency of the four tones of Mandarin, the capacitance between the capacitance touch pad and the finger is changed correspondingly;
B) acquiring the capacitance change by a touch panel control system so as to determine the touch position of the finger, and producing and transmitting a position signal representing the touch position;
C) converting the position signal into a fundamental frequency control signal by using a signal processing system, and providing the fundamental frequency control signal to a fundamental frequency control circuit;
D) the fundamental frequency control signal is amplified by the fundamental frequency control circuit, and the amplified fundamental frequency control signal is used for driving the miniature electric-power conversion system, so that the miniature electric-power conversion system generates vibration, and the electronic artificial larynx voice with tone is generated.
The advantages of the invention include:
(1) the invention is beneficial to using the Putonghua to send out the electronic artificial larynx voice with tone for the electronic artificial larynx user of the daily communication language, increases the intelligibility of the voice and is beneficial to being popularized in China.
(2) According to the invention, the finger position is collected in real time in a capacitive touch pad mode, the sounding fundamental frequency is adjusted according to the position, and a user can slide a finger on the touch pad according to the shape of the tone to send out electronic throat voice with the tone, so that the operation is simple and convenient, and the operation is easy to grasp.
Drawings
FIG. 1 is a schematic diagram of a toned electronic artificial larynx system using touchpad control according to one embodiment of the present invention.
Fig. 2 is a configuration diagram of a touch panel control system of a toned electronic artificial larynx according to an embodiment of the present invention using a touch panel control.
Fig. 3 is a diagram of a capacitive touchpad configuration using a toned electronic artificial larynx for touchpad control according to one embodiment of the present invention.
Fig. 4 is a configuration diagram of a signal processing system of a toned electronic artificial larynx controlled using a touch panel according to an embodiment of the present invention.
FIG. 5 is a schematic diagram of the appearance of a toned electronic artificial larynx controlled using a touchpad, according to one embodiment of the present invention.
Fig. 6 is a schematic front view of the internal structure of a toned electronic artificial larynx controlled using a touchpad according to one embodiment of the present invention.
FIG. 7 is a schematic diagram of the back side of the internal structure of a toned electronic artificial larynx controlled using a touchpad, according to one embodiment of the present invention.
FIG. 8 is a schematic diagram of a configuration of a capacitance touch pad using a toned electronic artificial touch pad control in accordance with one embodiment of the present invention.
FIG. 9 is a schematic diagram of a toned electronic manual finger position detection algorithm using touchpad control according to one embodiment of the present invention.
Fig. 10 is a flow diagram of a method for electronic and manual tonal adjustment using touchpad control in accordance with one embodiment of the present invention.
Reference numerals:
1-power module 2-touch panel control system 3-signal processing system
4-miniature electricity-power conversion system 5-insulating shell 6-capacitance touch panel
7-touch position detection circuit 8-metal contact 9-insulating substrate 10-lead wire
11-single chip 12-fundamental frequency control circuit 13-touch area 14-battery cover
15-switch 16-body shell 17-internal support 18-control circuit board
19-switch circuit board 20-power supply circuit board 21-finger touch area
Detailed Description
Embodiments of the present invention are described in detail below with reference to the accompanying drawings.
FIG. 1 is a system diagram of a toned electronic artificial larynx controlled using a touchpad according to one embodiment of the present invention. The electronic artificial larynx system comprises a power module 1, a touch panel control system 2, a signal processing system 3 and a micro electric-power conversion system 4. A user slides a finger on the touch pad control system 2, the touch pad control system 2 detects the position of the finger and sends a position signal to the signal processing system 3, and the signal processing system 3 generates a base frequency control signal with frequency change according to the position signal to control the micro electric-power conversion system 4 and generate electronic artificial larynx voices with tones. The system is powered by a power module 1.
Fig. 2 is a configuration diagram of a touch panel control system of a toned electronic artificial larynx according to an embodiment of the present invention using a touch panel control. The touch panel control system 2 includes an insulating housing 5, a capacitive touch panel 6, and a touch position detection circuit 7. The purpose of the insulating housing 5 is to form a sufficient layer of insulation between the capacitive touch pad 6 and a person's finger to form a varying capacitance between the finger and the capacitive touch pad 6. The capacitive touch panel 6 can change the capacitance value according to the contact position of the finger. The touch position detection circuit is used for acquiring the capacitance value changed on the capacitance touch panel 6 and calculating to obtain the touch position.
Fig. 3 is a diagram of a capacitive touchpad configuration using a toned electronic artificial larynx for touchpad control according to one embodiment of the present invention. The capacitive touch panel 6 includes a plurality of metal contacts 8, an insulating substrate 9, and leads 10. The metal contacts 8 are arranged in an array and are insulated from each other, and each metal contact 8 and the finger can form an equivalent capacitor, and the capacitance value of the equivalent capacitor changes according to the contact area of the finger. The insulating substrate 9 is used to carry metal contacts and may be shaped to facilitate finger touch. The lead lines 10 are used to connect each metal contact 8 with the touch position detection circuit 7, so that the touch position detection circuit 7 can collect the capacitance change of the metal contact 8.
Fig. 4 is a configuration diagram of a signal processing system of a toned electronic artificial larynx controlled using a touch panel according to an embodiment of the present invention. The signal processing system 3 comprises a single chip microcomputer 11 and a fundamental frequency control circuit 12. The single chip microcomputer 11 converts the touch position signal provided by the touch position detection circuit 7 into a fundamental frequency control signal, and provides the fundamental frequency control signal to the fundamental frequency control circuit 12. The fundamental frequency control circuit 12 amplifies the received fundamental frequency control signal and drives the micro electric-force conversion system to vibrate to generate electronic artificial larynx voices with tones.
FIG. 5 is a schematic diagram of the appearance of a toned electronic artificial larynx controlled using a touchpad, according to one embodiment of the present invention. The appearance of this embodiment includes a miniature electric-to-force conversion system 4, a touch area 13, a battery cover 14, a switch 15, and a body housing 16. Wherein, according to one embodiment of the present invention, the micro-electro-mechanical conversion system 4 is designed in the same way as the embodiment of the invention patent "finger-press type fundamental frequency adjusting electronic artificial throat" (patent No. ZL 200910090549.3). The touch area 13 and the body shell 16 are designed integrally, a finger touch area is marked through a flat plate groove with the length of 3 cm and the width of 1 cm, and the capacitive touch panel 6 is arranged below the touch area. The battery cover 14 is screwed to the body case 16 for fixing and replacing the power module 1. The switch 15 is used to control the power on/off of the whole embodiment. The fuselage shell 16 is made of PVC plastic and provides effective insulation, a contoured design that can be grasped with one hand, while providing protection and support for the internal structure.
Fig. 6 is a schematic front view of the internal structure of a toned electronic artificial larynx controlled by a touch pad according to an embodiment of the present invention, comprising: the capacitive touch panel 6, the internal support 17, the control circuit board 18, the switch circuit board 19 and the power module 1. The specific configuration of the capacitive touch panel 6 will be described in detail in fig. 8. The inner bracket 17 is used to fix each circuit board and the power module 1. The control circuit board 18 is directly connected with the capacitance touch panel 6 and comprises a singlechip 11; in one embodiment, the type of the used single chip microcomputer 11 is MSP430G2553, and the single chip microcomputer 11 is internally provided with a touch position detection circuit 7, and can automatically convert the capacitance change detected by the capacitance touch pad 6 into a touch position signal. The switch circuit board 19 fixes the switch 15. In one embodiment, the power module 1 used is a replaceable rechargeable battery, model number 6F 22.
FIG. 7 is a schematic diagram of the back side of the internal structure of a toned electronic artificial larynx controlled using a touchpad, according to one embodiment of the present invention. The capacitive touch pad 6, the internal support 17, the control circuit board 18, the switch circuit board 19 and the power module 1 are all described above with reference to fig. 6. In addition, fig. 7 also includes a power circuit board 20, and a fundamental frequency control circuit 12 is integrated on the power circuit board 20, and can amplify the fundamental frequency control signal provided by the single chip microcomputer 11 to drive the micro electric-to-electric conversion system 4 to vibrate, so as to generate a tonal electronic artificial larynx speech.
FIG. 8 is a schematic diagram of a configuration of a capacitance touch pad using a toned electronic artificial touch pad control in accordance with one embodiment of the present invention. In one embodiment, the capacitive touchpad 6 is 3 cm long by 1 cm wide and includes three metal contacts 8 thereon corresponding to the touch area 13. In one embodiment, the metal contacts 8 are printed in a printed circuit on an insulating substrate 9, the material being copper, and the three technical contacts 8 are of the same area and are arranged in sequence. The printed circuit board forms an insulating substrate 9, a three-pin connector is welded on the insulating substrate as a lead 10, and the lead 10 is directly welded with a control circuit board 18, so that parasitic capacitance is reduced, and the accuracy of capacitance detection is improved.
FIG. 9 is a schematic diagram of a toned electronic manual finger position detection algorithm using touchpad control according to one embodiment of the present invention. In the figure, the areas marked with black and white diagonal lines indicate the finger touch areas 21, and when the positions of the finger touch areas 21 change, the areas covered by the different metal contacts 8 change, and the corresponding capacitance values also change. The touch position detection circuit 7 collects capacitance values on different metal contacts 8 and calculates the touch position in proportion. In this embodiment, the touch positions are divided into 18 levels of 0-17, and the 18 levels correspond to 18 electronic artificial larynx base frequency values from low to high respectively. The user can slide a finger on the touch pad according to the shape of the Chinese phonetic tones to send out electronic artificial larynx voices with tones.
Fig. 10 is a flowchart of the tonal electronic-manual tone adjustment method using touchpad control of the present invention. Which comprises the following steps:
step 1: according to the action of sliding a finger on a touch pad control system by a user according to the change characteristics of the fundamental frequency of the four tones of Mandarin, the capacitance on the capacitive touch pad changes correspondingly;
step 2: the touch panel control system collects capacitance changes on the capacitance touch panel, determines the touch position of a finger, and produces and sends a touch position signal;
and step 3: the signal processing system converts the touch position signal into a fundamental frequency control signal and provides the fundamental frequency control signal to a fundamental frequency control circuit;
and 4, step 4: the fundamental frequency control circuit amplifies the fundamental frequency control signal, and the amplified fundamental frequency control signal is used for driving the miniature electric-power conversion system, so that the miniature electric-power conversion system generates vibration and generates electronic artificial larynx voices with tones.
It should be understood that the above description of the present invention, taken in conjunction with the accompanying drawings and examples, is illustrative only and not limiting, and that various changes, modifications and/or alterations may be made in the above-described embodiments without departing from the invention as defined in the appended claims.
Claims (6)
1. A toned electronic artificial larynx system controlled using a touchpad, comprising:
a power supply module (1) for supplying power to the electronic artificial larynx system with sound modulation,
a touch panel control system (2) for detecting a touch position of a user's finger and generating a position signal indicative of the touch position,
a signal processing system (3) for converting the position signal into a fundamental frequency control signal with tones,
a micro electric-force conversion system (4) for converting the fundamental frequency control signal into mechanical vibration to send out electronic artificial larynx voice with tone,
wherein:
the touch panel control system (2) includes:
a capacitive touch pad (6) for forming a varying capacitance with a finger of a user touching the insulating housing (5),
an insulating housing (5) for isolating a user's finger from the capacitive touch pad (6),
a touch position detection circuit (7) for acquiring the change in capacitance and determining the position signal and providing the position signal to a signal processing system (3).
2. A toned electronic artificial larynx system according to claim 1, characterized in that said capacitive touch pad (6) comprises:
a plurality of metal contacts (8), when the coverage area of the fingers of the user on each metal contact (8) is changed, the capacitance value between the fingers of the user and the corresponding metal contacts (8) is correspondingly changed,
an insulating substrate (9) for carrying the plurality of metal contacts (8) in a sequential arrangement,
a lead (10) for connection of the plurality of metal contacts to a touch position detection circuit (7).
3. A toned electronic artificial larynx system according to claim 2, characterized in that the touch position detecting circuit (7) determines the position signal in the following way:
when the fingers of a user slide on the insulating shell (5) to cause the capacitance value between each metal contact (8) and the finger to change, the current position of the finger is determined according to the capacitance values of two adjacent metal contacts (8),
when the capacitance value of one metal contact (8) of two adjacent metal contacts (8) is reduced and the capacitance value of the other metal contact (8) is increased, the central position of the finger is determined to move towards the metal contact (8) with the increased capacitance value.
4. A toned electronic artificial larynx system according to any of the claims 1-3, characterized in that said signal processing system (3) comprises:
a singlechip (11) for converting the position signal provided by the touch position detection circuit (7) into a fundamental frequency control signal,
and the fundamental frequency control circuit (12) is used for amplifying the fundamental frequency control signal and driving the miniature electric-power conversion system (4) to generate the electronic artificial larynx speech with tone by using the amplified fundamental frequency control signal.
5. The tone adjusting method based on the toned electronic artificial larynx system controlled by using the touch panel according to claim 1, 2 or 4, characterized by comprising:
A) according to the action of sliding a finger on a touch pad control system by a user according to the change characteristics of the fundamental frequency of the four tones of Mandarin, the capacitance between the capacitance touch pad and the finger is changed correspondingly;
B) acquiring the capacitance change by a touch panel control system so as to determine the touch position of the finger, and producing and transmitting a position signal representing the touch position;
C) converting the position signal into a fundamental frequency control signal by using a signal processing system, and providing the fundamental frequency control signal to a fundamental frequency control circuit;
D) the fundamental frequency control signal is amplified by the fundamental frequency control circuit, and the amplified fundamental frequency control signal is used for driving the miniature electric-power conversion system, so that the miniature electric-power conversion system generates vibration, and the electronic artificial larynx voice with tone is generated.
6. The tone adjusting method according to claim 5, characterized by further comprising:
when the fingers of a user slide on the insulating shell (5) to cause the capacitance values between each metal contact (8) and the fingers to change, the current position of the fingers is determined according to the capacitance values of two adjacent metal contacts (8),
when the capacitance value of one metal contact (8) of two adjacent metal contacts (8) is reduced and the capacitance value of the other metal contact (8) is increased, the central position of the finger is determined to move towards the metal contact (8) with the increased capacitance value.
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2019
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