CN214752916U - Electronic harmonica - Google Patents
Electronic harmonica Download PDFInfo
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- CN214752916U CN214752916U CN202120424519.8U CN202120424519U CN214752916U CN 214752916 U CN214752916 U CN 214752916U CN 202120424519 U CN202120424519 U CN 202120424519U CN 214752916 U CN214752916 U CN 214752916U
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Abstract
The utility model discloses an electronic harmonica, which relates to the technical field of electronic musical instruments, the utility model discloses a body, body is provided with a mouthpiece, the mouthpiece is provided with a plurality of mouthpieces, body is provided with a baroceptor that can detect the positive air pressure and the negative air pressure in the mouthpiece, the signal that can detect the baroceptor output converts the sensor detection circuit into the one-way voltage signal that analog-to-digital converter can discern, can gather the analog signal that the baroceptor output and can judge and form the microprocessor that plays musical note and play amplitude signal and play amplitude with this analog signal, body is still provided with the control rocker or control push rod or control button that can control the performance; the utility model discloses a sound is played in control lever control, lets the electron harmonica can realize the arpeggio of chord, plays at the same time, and the last sound of note, the lower sound is played, and the sustain of note is played, and the tremolo of note is played, the lift semitone of note is played.
Description
Technical Field
The utility model relates to an electronic musical instrument technical field, more specifically relates to an electronic harmonica.
Background
The difference between the electronic harmonica and the traditional harmonica is similar to that between an electric piano and a traditional piano, which is equivalent to extending the playing mode of the harmonica to a digital musical instrument, thereby realizing the playing of various musical instruments.
The existing electronic harmonica can only not control the playing sound effect during playing.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a: in order to solve the technical problem that the existing electronic harmonica can only not control the playing sound effect when playing, the utility model provides an electronic harmonica.
The utility model discloses a realize above-mentioned purpose and specifically adopt following technical scheme:
the utility model provides an electronic harmonica, including the organ body, be provided with the blow gun on the organ body, be provided with a plurality of blow guns on the blow gun, be provided with the baroceptor that can detect intraoral positive atmospheric pressure and negative pressure of blow gun in the organ body, the signal conversion that can detect the baroceptor output becomes the one-way voltage signal's that analog-to-digital converter can discern sensor detection circuitry, can gather the analog signal of baroceptor output and can judge and form the microprocessor of playing the note and playing the range signal with this analog signal, still be provided with the control rocker or control push rod or the control button that can control the performance on the organ body.
Furthermore, the playing operation unit 7 comprises a potentiometer and a switch or a switch circuit, the control rocker or the control push rod or the control key changes the resistance value of the potentiometer, the potentiometer rolls to generate an analog voltage quantity and samples the analog voltage quantity through an analog-digital converter (ADC), a microprocessor processes the analog voltage quantity and sends MIDI (musical instrument digital interface) control information to the musical instrument wavetable circuit, then the playing sound source is synthesized, and the musical instrument wavetable circuit adjusts the playing sound effect.
Further, the musical instrument wavetable circuit is a wavetable synthesis chip.
Furthermore, the body is also provided with function keys or function push rods.
Further, the function keys or function pushrods include a left function key or left function pushrod (12) and a right function key or right function pushrod (13).
Further, the device also comprises a power amplifier which can perform sound effect amplification on the played note signal output by the microprocessor and a loudspeaker which can convert an electric signal output by the power amplifier into an acoustic signal.
Further, the control rocker or the control push rod or the control key comprises a left control rocker or a left control push rod or a left control key and a right control rocker or a right control push rod or a right control key.
Further, the air pressure sensor is a silicon piezoresistive pressure sensitive sensor.
The air pressure sensor further comprises a sensor detection circuit which can detect that a signal output by the air pressure sensor is converted into a unidirectional voltage signal which can be identified by the analog-digital converter, and the sensor detection circuit is a differential amplification circuit.
Further, a display screen is arranged on the body.
The utility model has the advantages as follows:
1. the utility model changes the resistance value of the potentiometer by setting the control lever, shifting the control rocker or the control push rod or the control key, so that the potentiometer rolls to generate analog voltage and samples through an ADC (analog-digital converter), and the control information of the MIDI (musical instrument digital interface) is processed and sent to the sound source synthesizer by the microprocessor, and the sound effect is adjusted and played by the sound source synthesizer; the sound effect MIDI (musical instrument digital interface) control information comprises a sliding tone, a tremolo tone, a sustain tone and a hold tone, when a certain note is played, the resistance value of the potentiometer is changed, and other notes of the note with the size of three degrees, the upper and lower five degrees, the size of seven degrees and the upper and lower eight degrees are sent to the note, so that the arpeggious and the simultaneous playing function of chords are realized. Meanwhile, the resistance value of the potentiometer can be changed to generate an analog voltage quantity, and the numerical value is sampled through an ADC (analog-digital converter), so that when a certain note is played, the MIDI (musical instrument digital interface) bend tone is sent to control the MIDI (musical instrument digital interface) of the musical instrument wave table circuit 4 to realize the upward tone and downward tone playing of the note; changing the resistance value of a potentiometer to generate an analog voltage quantity, sampling a numerical value through an ADC (analog-digital converter), converting and transmitting the numerical value into a MIDI (musical instrument digital interface) slide tone control number, and transmitting MIDI (musical instrument digital interface) sustain control to a MIDI (musical instrument digital interface) musical instrument wave table circuit to realize sustain playing of a musical note while playing a certain musical note; the musical instrument wavetable circuit is a wavetable synthesis chip. Changing the resistance value of a potentiometer to generate an analog voltage quantity, sampling a numerical value through an ADC (analog-digital converter), converting and sending the numerical value into MIDI (musical instrument digital interface) sustain control, and sending the MIDI (musical instrument digital interface) tremolo control to a MIDI (musical instrument digital interface) wavetable synthesis chip to realize tremolo playing of musical notes while playing a certain musical note; the resistance value of the potentiometer is changed to generate an analog voltage quantity, and the value is sampled by an ADC (analog-digital converter) and converted and sent to MIDI (musical instrument digital interface) vibrato control. The utility model discloses a sound is played in control lever control, lets the electron harmonica can realize the arpeggio of chord, plays at the same time, and the last sound of note, the lower sound is played, and the sustain of note is played, and the tremolo of note is played, the lift semitone of note is played.
2. Simultaneously the utility model discloses power amplifier and speaker have still been set up and the melody of playing can be directly exported under the condition that need not connect peripheral hardware musical instrument audio output equipment.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a block diagram of the present invention;
fig. 3 is a sensor detection circuit diagram.
Reference numerals: 1-air pressure sensor, 2-sensor detection circuit, 3-microprocessor, 4-instrument wavemeter circuit, 5-power amplifier, 6-loudspeaker, 7-playing operation unit, 8-body, 9-blowing nozzle, 10-left control rocker or left control push rod or left control key, 11-right control rocker or right control push rod or right control key, 12-left function key or left function push rod, 13-right function key or right function push rod.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
In the description of the embodiments of the present invention, it should be noted that the terms "inside", "outside", "up", and the like indicate the directions or positional relationships based on the directions or positional relationships shown in the drawings, or the directions or positional relationships that the products of the present invention are conventionally placed when used, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element to which the term refers must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the present invention.
Example 1
The embodiment shown in fig. 1 to 3 provides an electronic harmonica, which comprises a body 8, a mouthpiece 9 is arranged on the body 8, a plurality of mouthpieces are arranged on the mouthpiece 9, an air pressure sensor 1 capable of detecting positive air pressure and negative air pressure in the mouthpiece is arranged in the body 8, a sensor detection circuit 2 capable of detecting that signals output by the air pressure sensor 1 are converted into unidirectional voltage signals capable of being identified by an analog-digital converter, a microprocessor 3 capable of collecting analog signals output by the air pressure sensor 1 and judging the analog signals to form playing notes and playing amplitude signals is arranged in the body 8, and a control rocker or a control push rod or a control key capable of controlling playing is further arranged on the body 8.
The playing operation unit 7 comprises a potentiometer and a switch or a switch circuit, the control rocker or the control push rod or the control key changes the resistance value of the potentiometer, the potentiometer rolls to generate an analog voltage quantity and samples the analog voltage quantity through an analog-digital converter (ADC), the analog voltage quantity is processed by the microprocessor 3 to send sound effect MIDI (musical instrument digital interface) control information to the musical instrument wavetable circuit 4, then a playing sound source is synthesized, and the musical instrument wavetable circuit 4 adjusts the playing sound effect.
Example 2
The embodiment shown in fig. 1 to 3 provides an electronic harmonica, which comprises a body 8, a mouthpiece 9 is arranged on the body 8, a plurality of mouthpieces are arranged on the mouthpiece 9, an air pressure sensor 1 capable of detecting positive air pressure and negative air pressure in the mouthpiece is arranged in the body 8, a sensor detection circuit 2 capable of detecting that signals output by the air pressure sensor 1 are converted into unidirectional voltage signals capable of being identified by an analog-digital converter, a microprocessor 3 capable of collecting analog signals output by the air pressure sensor 1 and judging the analog signals to form playing notes and playing amplitude signals is arranged in the body 8, and a control rocker or a control push rod or a control key capable of controlling playing is further arranged on the body 8.
The playing operation unit 7 and the musical instrument wave table circuit 4, the playing operation unit 7 includes a potentiometer and a switch or a switch circuit, the musical instrument wave table circuit 4 is an SAM2695 musical instrument wave table synthesis chip, a control rocker or a control push rod or a control key changes the resistance value of the potentiometer, the potentiometer rolls to generate an analog voltage quantity and samples the analog voltage quantity through an ADC (analog-digital converter), the microprocessor 3 processes and sends sound effect MIDI (musical instrument digital interface) control information to the musical instrument wave table circuit 4 to synthesize a playing sound source, and the musical instrument wave table circuit 4 adjusts the playing sound effect; the control rocker or the control push rod or the control key comprises a left control rocker or a left control push rod or a left control key 10 and a right control rocker or a right control push rod or a right control key 11.
The body 8 is further provided with function keys or function push rods, and the function keys or function push rods comprise left function keys or left function push rods 12 and right function keys or right function push rods 13.
The musical instrument further comprises a power amplifier 5 which can perform sound effect amplification on the played note signal output by the microprocessor 3 and a loudspeaker 6 which can convert an electric signal output by the power amplifier 5 into an acoustic signal.
Example 3
As shown in fig. 1 to 3, the present embodiment provides an electronic harmonica, which includes a body, a plurality of mouthpiece arranged on the body, an air pressure sensor 1 capable of detecting positive air pressure and negative air pressure in the mouthpiece, a sensor detection circuit 2 capable of detecting the signal output by the air pressure sensor 1 and converting the signal into a one-way voltage signal that can be identified by an analog-to-digital converter, a microprocessor 3 capable of collecting the analog signal output by the sensor detection circuit 2 and judging the analog signal and forming a playing note and a playing amplitude signal, a power amplifier 5 capable of performing sound effect amplification on the playing note signal output by the microprocessor 3, and a speaker 6 capable of converting the electric signal output by the power amplifier 5 into an acoustic signal. The power amplifier is an important unit of the sound system, and the power amplifier 5 and the loudspeaker 6 are necessary for processing an audio signal, amplifying the energy of the audio signal to drive the sound and sending the sound to a sound field, so that the electronic harmonica can directly emit the sound.
Example 4
As shown in fig. 1 to 3, the present embodiment provides an electronic harmonica, which includes a body, a plurality of mouthpiece, an air pressure sensor 1 capable of detecting positive air pressure and negative air pressure in the mouthpiece, a sensor detection circuit 2 capable of detecting a signal output by the air pressure sensor 1 and converting the signal into a unidirectional voltage signal that can be recognized by an analog-to-digital converter, and a microprocessor 3 capable of acquiring an analog signal output by the sensor detection circuit 2 and determining the analog signal to form a playing note and a playing amplitude signal, wherein the air pressure sensor 1 is a silicon piezoresistive pressure sensitive sensor; the sensor detection circuit 2 is a differential amplification circuit.
Every blowing mouth department all is provided with baroceptor 1, baroceptor 1 adopts silicon piezoresistive pressure sensitive sensor, its inside produces differential voltage signal through elastic film connection electric bridge, inhale when playing and blow and can produce positive pressure signal or negative pressure signal, because this signal is balanced signal and can't use ADC (analog-to-digital converter) direct detection, need become it through differential amplifier circuit into the one-way voltage signal that ADC (analog-to-digital converter) can detect, specifically, can carry out 1/2 partial pressure through two the same resistance R1 and R2, realize the monitoring of positive negative pressure, it is blowing to be higher than Vcc/2, it is breathing in to be lower than Vcc/2.
The microprocessor 3 is an integrated chip with an AD sampling (analog-digital sampling) function, the microprocessor 3 samples voltage signals with equivalent air pressure change, and realizes playing note signal transmission through sampling value judgment of an ADC (analog-digital converter), and realizes playing amplitude signal transmission through sampling value judgment of an ADC (analog-digital converter) sampling circuit.
Example 5
As shown in fig. 1 to 3, the present embodiment provides an electronic harmonica, which includes a body, a plurality of mouthpiece, an air pressure sensor 1 capable of detecting positive air pressure and negative air pressure in the mouthpiece, a sensor detection circuit 2 capable of detecting a signal output by the air pressure sensor 1 and converting the signal into a unidirectional voltage signal that can be recognized by an analog-to-digital converter, and a microprocessor 3 capable of acquiring an analog signal output by the sensor detection circuit 2 and determining the analog signal to form a playing note and a playing amplitude signal, wherein the air pressure sensor 1 is a silicon piezoresistive pressure sensitive sensor; the sensor detection circuit 2 is a differential amplification circuit. The device also comprises a storage battery capable of providing electric energy; the storage battery is a rechargeable storage battery; and also comprises an instrument audio output interface which can output signals output by the microprocessor 3.
Example 6
The playing operation unit 7 comprises a potentiometer and a switch or a switch circuit, the resistance value of the potentiometer is changed by shifting a control lever, the potentiometer rolls to generate an analog voltage quantity, the analog voltage quantity is sampled by an ADC (analog-to-digital converter), sound effect MIDI (musical instrument digital interface) control information is processed and sent to the sound source synthesizer by the microprocessor 3, and the sound source synthesizer adjusts playing sound effect; the sound effect MIDI (musical instrument digital interface) control information comprises a sliding tone, a tremolo tone, a sustain tone and a hold tone, when a certain note is played, the resistance value of the potentiometer is changed, and other notes of the note with the size of three degrees, the upper and lower five degrees, the size of seven degrees and the upper and lower eight degrees are sent to the note, so that the arpeggious and the simultaneous playing function of chords are realized. Meanwhile, the resistance value of the potentiometer can be changed to generate an analog voltage quantity, and the numerical value is sampled through an ADC (analog-digital converter), so that when a certain note is played, the MIDI (musical instrument digital interface) bend tone is sent to control the MIDI (musical instrument digital interface) of the musical instrument wave table circuit 4 to realize the upward tone and downward tone playing of the note; changing the resistance value of a potentiometer to generate an analog voltage quantity, sampling a numerical value through an ADC (analog-digital converter), converting and transmitting the numerical value into a MIDI (musical instrument digital interface) slide tone control number, and transmitting MIDI (musical instrument digital interface) sustain control to a MIDI (musical instrument digital interface) musical instrument wave table circuit 4 to realize sustain playing of a musical note while playing a certain musical note; the musical instrument wavetable circuit 4 is a wavetable synthesis chip. Changing the resistance value of a potentiometer to generate an analog voltage quantity, sampling a numerical value through an ADC (analog-digital converter), converting and sending the numerical value into MIDI (musical instrument digital interface) sustain control, and sending the MIDI (musical instrument digital interface) tremolo control to a MIDI (musical instrument digital interface) wavetable synthesis chip to realize tremolo playing of musical notes while playing a certain musical note; the resistance value of the potentiometer is changed to generate an analog voltage quantity, and the value is sampled by an ADC (analog-digital converter) and converted and sent to MIDI (musical instrument digital interface) vibrato control.
Example 7
The utility model discloses a be connected atmospheric pressure mouth and mouthpiece 2 with baroceptor 1 and will blow the pressure feed of breathing in and go into baroceptor 1 and carry out the atmospheric pressure and detect, baroceptor 1 adopts silicon piezoresistive pressure sensitive sensor, inside produces differential voltage signal by elastic film connecting bridge, breathe in when playing and blow and all can produce malleation signal or negative pressure signal, because this signal is that balanced signal can't use ADC (analog-to-digital converter) direct detection, need become it into the voltage signal that ADC (analog-to-digital converter) can detect through differential amplifier circuit, carry out 1/2 partial pressure through two the same resistance R1 and R2, realize the monitoring of positive and negative atmospheric pressure, be higher than Vcc/2 for blowing, be less than Vcc/2 for breathing in, sampler AD (analog-to-digital converter) and treater part can adopt the microprocessor 3 direct sampling processing or the single-chip (analog-to-digital converter) cooperation traditional processing of taking ADC (analog-to sample According to the scheme of the device interface, the microprocessor 3 sends a serial port control signal after sampling judgment, the control signal can be output to other components for processing, the tone color modification can be carried out after the MIDI (musical instrument digital interface) tone color chip is set to receive the serial port signal, the control of turning on the musical note, turning off the musical note and the like is carried out, the tone color chip stores a large amount of musical instrument sampling information, and the sampling information is called out through the serial port signal and is output to a loudspeaker or a secondary system to complete musical instrument audio output.
Claims (10)
1. The utility model provides an electronic harmonica, includes body (8), is provided with blow gun (9) on body (8), is provided with a plurality of blow mouths on blow gun (9), its characterized in that: the instrument body is characterized in that an air pressure sensor (1) capable of detecting positive air pressure and negative air pressure in a blowing port is arranged in the instrument body (8), a sensor detection circuit (2) capable of detecting that signals output by the air pressure sensor (1) are converted into unidirectional voltage signals capable of being identified by an analog-digital converter, a microprocessor (3) capable of collecting analog signals output by the air pressure sensor (1) and judging the analog signals to form playing notes and playing amplitude signals is arranged in the instrument body, and a control rocker or a control push rod or a control key capable of controlling playing is further arranged on the instrument body (8).
2. The electronic harmonica of claim 1, wherein: the instrument comprises a control rocker, a control push rod or a control key, wherein the control rocker or the control push rod or the control key changes the resistance value of the potentiometer, the potentiometer rolls to generate analog voltage and performs sampling through an ADC (analog to digital converter), the microprocessor (3) processes and sends sound effect MIDI control information to the instrument wavetable circuit (4) to synthesize a playing sound source, and the instrument wavetable circuit (4) adjusts the playing sound effect.
3. The electronic harmonica of claim 2, wherein: the musical instrument wavetable circuit (4) is a wavetable synthesis chip.
4. The electronic harmonica of claim 1, wherein: the body (8) is also provided with function keys or function push rods.
5. The electronic harmonica of claim 4, wherein: the function keys or function push rods comprise a left function key or a left function push rod (12) and a right function key or a right function push rod (13).
6. The electronic harmonica of claim 1, wherein: the musical instrument playing device also comprises a power amplifier (5) which can carry out sound effect amplification on the played note signal output by the microprocessor (3) and a loudspeaker (6) which can convert an electric signal output by the power amplifier (5) into an acoustic signal.
7. The electronic harmonica of claim 1, wherein: the control rocker or the control push rod or the control key comprises a left control rocker or a left control push rod or a left control key (10) and a right control rocker or a right control push rod or a right control key (11).
8. The electronic harmonica of claim 1, wherein: the air pressure sensor (1) is a silicon piezoresistive pressure sensitive sensor.
9. The electronic harmonica of claim 1, wherein: the air pressure sensor further comprises a sensor detection circuit (2) capable of detecting signals output by the air pressure sensor and converting the signals into unidirectional voltage signals capable of being identified by the analog-digital converter, and the sensor detection circuit (2) is a differential amplification circuit.
10. The electronic harmonica of claim 1, wherein: the body (8) is also provided with a display screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120424519.8U CN214752916U (en) | 2021-02-26 | 2021-02-26 | Electronic harmonica |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120424519.8U CN214752916U (en) | 2021-02-26 | 2021-02-26 | Electronic harmonica |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214752916U true CN214752916U (en) | 2021-11-16 |
Family
ID=78590180
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120424519.8U Active CN214752916U (en) | 2021-02-26 | 2021-02-26 | Electronic harmonica |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214752916U (en) |
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2021
- 2021-02-26 CN CN202120424519.8U patent/CN214752916U/en active Active
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