CN101991473B - Finger pressing type fundamental frequency adjustment electronic artificial larynx - Google Patents
Finger pressing type fundamental frequency adjustment electronic artificial larynx Download PDFInfo
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- CN101991473B CN101991473B CN 200910090549 CN200910090549A CN101991473B CN 101991473 B CN101991473 B CN 101991473B CN 200910090549 CN200910090549 CN 200910090549 CN 200910090549 A CN200910090549 A CN 200910090549A CN 101991473 B CN101991473 B CN 101991473B
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- glottis ripple
- finger pressure
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Abstract
The invention relates to a shiatsu type fundamental frequency adjustment electronic artificial larynx. The shiatsu type fundamental frequency adjustment electronic artificial larynx is characterized by changing fundamental frequency of a glottal wave by a shiatsu switch button at any time so as to change voice tones and mainly comprising a shiatsu sensing part, a waveform generating and processing system, a power amplification circuit and an electricity-force conversion system. The shiatsu type fundamental frequency adjustment electronic artificial larynx is characterized in that a glottal waveform having individual voice characteristics is stored in the waveform generating and processing system; the fundamental frequency of the waveform is changed under the control of the switch/ shiatsu button at any time during the process of waveform generation; the generated waveform is converted to an analog signal through a digital to analog conversion module in the system; and the signal waveform output by a digital to analog converter is applied to the electricity-force conversion system after power amplification. The amplified waveform is converted to mechanical vibration through an electricity-force energy converter of a high magnetic field, the vibration is applied tp the neck of a patient through a vibration film to produce the glottal wave, and the waveform forms sound outside a lip after being modulated by a tongue, a nasal cavity, an oral cavity, a lip, and the like of the patient.
Description
Technical field
The invention belongs to voice disappearance patient's voice rehabilitation field, and relate to the artificial electronic larynx that a kind of finger pressing type fundamental frequency is regulated.
Background technology
The human various means that are used for interchange, voice are the most basic, the most effective and most important a kind of.Laryngeal carcinoma and other serious laryngopathy patients that hundreds thousand of meters are arranged at present in the world, have to carry out the larynx resection operation in order to treat throat diseases, this method also makes the patient lose vocality in treatment, uses voice to carry out the ability of communication thereby also just lost.The external voice method of rehabilitation that artificial electronic larynx uses as a kind of voice disappearance patient 40 years history of having had an appointment, the artificial electronic larynx operation principle that exists at present is simple.The patient withstands on throat to equipment, and the pulse that gauge tap produces is applied to patient's cervical region by vibration, passes to sound channel through tissue, produces voice after modulation.Present artificial electronic larynx exists voice to lack variation, and especially lack tone and change, with obvious machine taste, the large shortcomings that waits of background noise.
For improving voice effect, present researcher is placed on main energy in the removal of artificial electronic larynx background noise, and undertaken by signals such as myoelectricities in the control of artificial electronic larynx pulse generation, because electromyographic signal produces and the complexity of analyzing, effect is unsatisfactory.Some researcheres use the collection of voice signal, picture signal and noise signal, analysis to regulate and control the artificial electronic larynx voice, and mechanism is complicated, and cost increase and reliability are low.Based on the limitation of the electronic larynx technology of present existence, the tone of the sound that artificial electronic larynx produces does not change in the whole process of speaking, and this is the main cause that causes the artificial electronic larynx voice different with the normal voice quality.
Summary of the invention
The inventor recognizes, regulates in real time glottis ripple fundamental frequency in the patient speaks process, changes the tone of speaking, and just can improve the intelligibility of voice.According to this thinking, the inventor has designed Shiatsu type fundamental frequency adjustment electronic artificial larynx equipment.
Main purpose of the present invention is, a kind of artificial electronic larynx of finger pressure control glottis ripple fundamental frequency is provided, and it has improved voice disappearance patient's the intelligibility of speech.
Of the present invention composed as follows: this electronic larynx equipment mainly comprises finger pressure sensing part, waveform generation and processing system, power amplification circuit, micro electric-four major parts of Li converting system.These artificial electronic larynx voice can improve the intelligibility of voice that the patient produces, and have individual characteristic voice.Wherein micro electric-Li converting system is made of vibrating diaphragm, high field intensity Magnet, winding support, coil windings, outer yoke and cabinet, that this system is based on that the Ampere force principle makes is a kind of simple, the calutron of directionless conversion, response fast, level and smooth, without inserted tooth, without delayed response, produce high speed, high acceleration, straight reciprocating motion.
The glottal waveform (individual sound mark can before be recorded, process) with individual sound mark can be stored in waveform generation and the processing system, in the process that the glottis ripple produces, amplitude disturbance and frequency disturbance can be added; The finger pressure sensing part is used for regulating in real time glottis ripple fundamental frequency at glottis ripple production process; The waveform that waveform generation and processing system produce is converted to analogue signal by the D/A converter module in the system; Signal waveform by analog-digital converter output is connected with power amplification circuit, and is after-applied in electricity-Li energy transducer through power amplification.The electricity of waveform after the amplification by the highfield-Li energy transducer is converted to mechanical vibration, this vibration puts on patient's cervical region by vibrating diaphragm, produce the glottis ripple, this waveform is through the modulation of the organs such as patient's tongue, nasal cavity, oral cavity, lip, outside lip, form voice, the change of glottis ripple fundamental frequency can produce different tones, increases the intelligibility of speech.
A feature of the present invention provides the artificial electronic larynx of finger pressure frequency modulation, and this equipment mainly is comprised of finger pressure sensing part, waveform generation and processing system, power amplification circuit, regulatable miniature power-force transducer.Another feature of the present invention is to utilize finger pressure information, real time altering glottis wave frequency.
Feature of the present invention comprises:
-pre-stored glottal waveform with personal speech characteristic in waveform generation and processing system, waveform generation and processing system are according to the continuous glottis ripple of this waveform generation, and this waveform adds amplitude fluctuation and frequency disturbance according to algorithm;
-finger pressure sensing part is converted into the signal of telecommunication with the finger pressure signal, and the finger pressure size determines the amplitude of the signal of telecommunication, and this signal of telecommunication need be used for regulating through being transferred to waveform generation and processing system after the AD conversion fundamental frequency of the glottis ripple that produces.
The waveform that-waveform generation and processing system produce is converted to analogue signal by the DA D/A converting circuit in the system, and analog to digital conversion circuit is realized by the DA chip of special use;
-being connected with power amplification circuit by the signal waveform of analog-digital converter output, the process power amplification is to driving electricity-Li converting system work.
Through amplifying signal, be converted to mechanical vibration through the electricity of highfield-Li energy transducer, this transducer is through particular design, and realization voltage waveform that can minimum distortion is to the conversion of mechanical vibration.
The vibration that is produced by (4) puts on patient's cervical region by vibrating diaphragm, produces the glottis ripple.This glottis ripple forms voice through the modulation of the organs such as patient's tongue, nasal cavity, oral cavity, lip outside lip.
Shiatsu type fundamental frequency adjustment electronic artificial larynx according to an embodiment of the invention can be powered by chargeable lithium cell.
Description of drawings
Fig. 1 is principle of compositionality figure of the present invention;
Fig. 2 is waveform generation and processing system principle of compositionality figure;
Fig. 3 is schematic appearance of the present invention;
Fig. 4 is internal structure schematic diagram of the present invention;
Fig. 5 is System Working Principle figure of the present invention;
Fig. 6 is electricity of the present invention-Li conversion portion structural representation;
Fig. 7 is workflow diagram of the present invention;
The specific embodiment
For ease of understanding principle of the present invention and actual operation process and situation, the invention will be further described below in conjunction with embodiment and accompanying drawing.
Fig. 1 is the pie graph with glottis wave simulation formula artificial electronic larynx of individual characteristics according to an embodiment of the invention, this artificial electronic larynx comprises finger pressure sensing part 101, waveform generation and processing system 102, power amplification circuit 103, micro electric-Li converting system 104.
In the present embodiment, finger pressure sensing part 101 is realized by pressure transducer, finger applied pressure signal can be converted into the signal of telecommunication, and the large young pathbreaker of pressure determines the size of signal of telecommunication amplitude, the signal of telecommunication need through input waveform generation and processing system 102 after the A/D conversion, be used for regulating the waveform fundamental frequency.In the present embodiment, need external A/D chip to realize that the signal of telecommunication is to the conversion of digital signal.
According to an embodiment, waveform generation and processing system 102 can utilize the single-chip microcomputer self-contained storing devices to have the memorizer of the glottis ripple of individual characteristics as above-mentioned storage based on microcomputer development, store the glottis ripple with individual characteristics; By in single-chip microcomputer, writing the program that realizes corresponding function, comprise that waveform generates and the adding of frequency/amplitude disturbance, and the adjusting of frequency/amplitude.The waveform of output is transferred to power amplifier after changing through D/A.The signal of telecommunication of finger pressure sensing part output acts on frequency adjustment module after changing through A/D, is used for regulating glottis ripple fundamental frequency.
Figure 2 shows that the formation schematic diagram of waveform generation and processing system, according to a specific embodiment of the present invention, waveform generation and processing system 102 comprise memorizer 201, calculation and control system 202 and the D/A digital-to-analogue conversion module 203 that can store the glottis ripple with individual characteristics.
According to a kind of specific embodiment of the present invention, waveform generation and processing system 102 can utilize the single-chip microcomputer self-contained storing devices to have the memorizer of the glottis ripple of individual characteristics as above-mentioned storage based on microcomputer development, store the glottis ripple with individual characteristics; By in single-chip microcomputer, writing the program that realizes corresponding function, and realize as shown in Figure 7 waveform generation and the embodiment of processing system 102, it comprises initial waveform generation module 12, frequency disturbance generation module 13, amplitude disturbance generation module 14, waveform frequency adjustment module 15, wave-shape amplitude adjustment module 16.The digital waveform signal of having added frequency disturbance and amplitude disturbance is converted into analogue signal through D/A conversion module 17, can by the D/A conversion module 17 of special-purpose D/A chip realization, export power amplification circuit 103 to again.
(denomination of invention that the applicant submitted on July 27th, 2009 has specifically described waveform frequency disturbance generation module and wave-shape amplitude disturbance generation module in No. the 200910089700.1st, " the glottis wave simulation formula artificial electronic larynx with individual characteristics " Chinese patent application.This application is quoted in full at this.)
Fig. 3 is the structural representation of electronic larynx according to an embodiment of the invention, and this equipment comprises: a vibrating diaphragm 1; End housing 2 on the plastics; Switch/finger pressure button 3; Amplitude adjusted knob 4; End housing 5 under the plastics.
Shift knob 3 is started working by next electronic larynx, and vibrating diaphragm 1 produces vibration; Utilize amplitude adjusted knob 4 to act on the amplitude that wave-shape amplitude adjustment module 16 is regulated the vibration that produces.
Button 3 be shift knob also be the finger pressure button simultaneously.After button 3 is pressed, waveform generation and processing system are started working, finger pressure sensing part 101 included pressure transducer finger sensing are applied to the pressure on the button 3 simultaneously, the pressure of experiencing is converted into the signal of telecommunication, and this signal of telecommunication is imported into waveform generation and processing system 102 after by analog digital conversion; Waveform generation and processing system 102 are regulated glottis ripple fundamental frequency according to this signal of telecommunication.Like this, user can be added in finger pressure power on switch/finger pressure button 3 by change in the waveform generation process, regulate the waveform fundamental frequency, thereby the tone sounding is changed.
Fig. 4 is the internal structure schematic diagram of electronic larynx according to an embodiment of the invention, comprising: vibrating diaphragm 1; Vibration head bobbin 7; High strength magnetic core 8; Power amplifier module 9; Single-chip microcomputer waveform generation system 10; Rechargeable battery 6.
Fig. 5 is the System Working Principle figure of electronic larynx according to an embodiment of the invention, and this electronic larynx system comprises: finger pressure sensing part 11; Waveform generation module 12; Waveform frequency disturbance generation module 13; Wave-shape amplitude disturbance generation module 14; Frequency adjustment module 15; Amplitude adjusted module 16; D/A modular converter 17; Power amplifier module 18; Artificial electronic larynx electricity-Li modular converter 19; Power supply 20.
Fig. 6 is the structural representation of electricity according to an embodiment of the invention-Li modular converter 19, and it comprises: vibrating diaphragm 1; High field intensity Magnet 21; Winding support 22; Outer yoke 23; Cabinet 24; Coil windings 25.That this electricity-Li modular converter is based on that the Ampere force principle makes is a kind of simple, the calutron of directionless conversion, response fast, level and smooth, without inserted tooth, without lagging behind, produce high speed, high acceleration, straight reciprocating motion.
Fig. 7 is the workflow diagram according to the operating process of an embodiment of the present invention.
Glottal waveform with personal speech characteristic is stored in advance in single-chip microcomputer waveform generation and the processing system.When needs of patients uses, vibrating diaphragm is withstood on throat (step S801), and press start button 3.The patient can regulate wave-shape amplitude (step S802) by button 4; Detect the finger pressure signal, determine waveform fundamental frequency (step S803) according to the finger pressure size; Produce final waveform and output (step S804) by single-chip microcomputer; Final waveform is converted to analogue signal (step S805) by DA D/A converting circuit 17; After this analogue signal is amplified (step S806) through power amplifier module 18, drive electricity-Li modular converter 19 work, be mechanical energy with electric energy conversion, produce vibration (step S807), vibration is applied in patient's cervical region, produce glottis ripple (step S808), this waveform forms voice through the modulation of the organs such as patient's tongue, nasal cavity, oral cavity, lip outside lip.The patient can regulate finger pressure at any time in the process of speaking, if finger pressure changes, then single-chip microcomputer is inner produces interrupt signal and pass to waveform frequency adjustment module 15, regulates waveform fundamental frequency (step S809).
Should be understood that, the description of below in conjunction with the accompanying drawings and embodiments the present invention being carried out just illustrates but not is determinate, and do not breaking away under the prerequisite of the present invention that limits such as appended claims, can carry out various changes, distortion and/or correction to above-described embodiment.
Claims (7)
1. Shiatsu type fundamental frequency adjustment electronic artificial larynx with individual characteristics comprises:
A switch/finger pressure button (3),
Finger pressure sensing part (101) for detection of the pressure that is applied on described switch/finger pressure button (3), and produces the finger pressure detection signal corresponding with this pressure,
Waveform generation and processing section (102) for generation of glottis ripple signal, and add frequency disturbance and/or amplitude disturbance in described glottis ripple signal,
Power amplification circuit (103),
Regulatable micro electric-Li conversion portion (104),
Described finger pressure sensing part (101) comprising:
A pressure transducer, the pressure that is used for user is applied on described switch/finger pressure button (3) is converted to described finger pressure detection signal,
It is characterized in that: described waveform generation and processing section (102) comprising:
Be used for the memory that storage has the glottal waveform of individual sound mark,
Waveform generation module (12) is used for producing described glottis ripple signal according to pre-stored single glottal waveform,
Waveform frequency disturbance generation module (13) is used for adding frequency disturbance at the glottis ripple signal that described waveform generation module (12) produces,
Wave-shape amplitude disturbance generation module (14) is used for adding amplitude disturbance at the glottis ripple signal that described waveform generation module (12) produces,
Waveform frequency adjustment module (15), for the frequency of regulating described glottis ripple signal according to described finger pressure detection signal,
Wave-shape amplitude adjustment module (16), the amplitude of under amplitude adjusted knob (4) control, regulating glottis ripple signal,
D/A modular converter (17) is used for digital signal is converted into analogue signal.
2. Shiatsu type fundamental frequency adjustment electronic artificial larynx as claimed in claim 1, it is characterized in that: described Shiatsu type fundamental frequency adjustment electronic artificial larynx further comprises:
Described power amplification circuit (103) is used for the signal waveform of described D/A converter module (17) output is carried out power amplification.
3. Shiatsu type fundamental frequency adjustment electronic artificial larynx as claimed in claim 2 is characterized in that
Described regulatable micro electric-Li conversion portion (104) comprising:
A high field intensity Magnet (21);
Be arranged on described high field intensity Magnet (21) outer yoke (23) on every side;
Be arranged on the coil windings (25) between described high field intensity Magnet (21) and the described outer yoke (23);
Vibrating diaphragm (1) with described coil windings (25) mechanical couplings;
Wherein the signal of power amplification circuit (103) output is added on the described coil windings (25), is the mechanical vibration of described vibrating diaphragm (1) thereby be used for the waveform transformation after described power amplification circuit (103) amplification.
4. Shiatsu type fundamental frequency adjustment electronic artificial larynx as claimed in claim 3 is characterized in that:
Mechanical couplings between described coil windings (25) and the described vibrating diaphragm (1) realizes by a winding support (22).
5. Shiatsu type fundamental frequency adjustment electronic artificial larynx as claimed in claim 4 is characterized in that:
The mechanical vibration of described vibrating diaphragm (1) are used for being applied in the user cervical region to produce the glottis ripple, thereby make the glottis ripple form voice outward through the lip that is modulated at of the organs such as user tongue, nasal cavity, oral cavity, lip, and that described regulatable micro electric-Li conversion portion (104) is based on that the Ampere force principle makes is a kind of simple, the calutron of directionless conversion, its response fast, level and smooth, without inserted tooth, without delayed response, and be suitable for producing at a high speed, the straight reciprocating motion of high acceleration.
6. produce the method with finger pressure control glottis ripple signal fundamental frequency, it is characterized in that comprising:
Glottal waveform with individual sound mark is stored in the memory,
Produce glottis ripple signal according to pre-stored single glottal waveform,
According to the real-time fundamental frequency of regulating described glottis ripple signal of pressure that acts on a switch/finger pressure button (3),
Described glottis ripple signal is carried out power amplification,
Be the described glottis ripple conversion of signals after the power amplification mechanical vibration of a vibrating diaphragm (1) of a micro electric-Li converting system (104).
7. generation as claimed in claim 6 has the method for finger pressure control glottis ripple signal fundamental frequency, it is characterized in that further comprising:
The mechanical vibration of described vibrating diaphragm (1) are put on the user cervical region with generation glottis ripple, thereby make the glottis ripple form voice outward through the lip that is modulated at of the organs such as user tongue, nasal cavity, oral cavity, lip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910090549 CN101991473B (en) | 2009-08-20 | 2009-08-20 | Finger pressing type fundamental frequency adjustment electronic artificial larynx |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910090549 CN101991473B (en) | 2009-08-20 | 2009-08-20 | Finger pressing type fundamental frequency adjustment electronic artificial larynx |
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| Publication Number | Publication Date |
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| CN101991473A CN101991473A (en) | 2011-03-30 |
| CN101991473B true CN101991473B (en) | 2013-04-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200910090549 Expired - Fee Related CN101991473B (en) | 2009-08-20 | 2009-08-20 | Finger pressing type fundamental frequency adjustment electronic artificial larynx |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102623002B (en) * | 2012-02-20 | 2013-12-18 | 陕西师范大学 | Bionic device for simulating vocal-cord vibration |
| TW201446226A (en) * | 2013-06-04 | 2014-12-16 | jing-feng Liu | Artificial sounding device |
| CN104188736B (en) * | 2014-07-22 | 2016-06-29 | 北京航空航天大学 | Artificial electronic larynx training system and the operational approach of signals-modulating is pressed based on fistula implication gas |
| CN105310806B (en) * | 2014-08-01 | 2017-08-25 | 北京航空航天大学 | Artificial electronic larynx system and its phonetics transfer method with voice conversion function |
| CN105326580B (en) * | 2014-08-12 | 2017-10-13 | 北京航空航天大学 | Intraoral microphony type artificial electronic larynx |
| CN107307923B (en) * | 2016-04-27 | 2019-08-02 | 北京航空航天大学 | The artificial electronic larynx system and its fundamental frequency adjusting method of sounding fundamental frequency are adjusted using idler wheel |
| CN107411847B (en) * | 2016-11-11 | 2020-04-14 | 清华大学 | Artificial larynx and its sound conversion method |
| CN110890149A (en) * | 2019-10-14 | 2020-03-17 | 北京航空航天大学 | Toned electronic artificial larynx controlled by touch panel and tone adjusting method |
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