CN220324131U

CN220324131U - Electric torch with tremolo function

Info

Publication number: CN220324131U
Application number: CN202321730089.8U
Authority: CN
Inventors: 王中秋
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-07-04
Filing date: 2023-07-04
Publication date: 2024-01-09
Anticipated expiration: 2033-07-04

Abstract

An electroblowing pipe with a tremolo function relates to the field of electroblowing pipes. The shell is an electroblowing pipe main body, the blowing nozzle is communicated with the shell, the circuit board is placed in the shell, one end of the tremolo pipe is communicated with the inlet of the blowing nozzle, and the other end of the tremolo pipe is communicated with the inlet of the pressure sensor of the blowing nozzle; the output ends of the blowing nozzle pressure sensor, the tremolo pressure sensor, the key touch sensing circuit, the 8-degree key touch sensing circuit, the audio DAC chip and the bending sound sensor are connected with the input end of the MCU chip; the input end of the MIDI output circuit is connected with the output end of the MCU chip; the output end of the TF card circuit is connected with the input end of the MCU chip; the output end of the voice recognition module is connected with the input end of the MCU chip; the input end of the audio power amplifier circuit is connected with the output end of the audio DAC chip; the input end of the audio output socket is connected with the output end of the audio DAC chip; the input end of the loudspeaker is connected with the output end of the audio power amplifier circuit. The requirements of the current user on the sensitivity of the electroblowing tube to the multi-tone, variable tone and tremolo functions are met.

Description

Electric torch with tremolo function

Technical Field

The utility model relates to the field of electroblowing tubes.

Background

With the continuous progress of power electronics, energy conservation and control technologies, harmonica has also evolved into electronic harmonica. The electronic harmonica is flexible and convenient to blow and portable, and is a pocket musical instrument which is popular with the masses. The structure principle of the device mainly utilizes the blowing and sucking free reeds to generate mechanical vibration sounding, and has the defects of monotonous tone, fixed tone, narrower range and capability of amplifying sound volume only through simple speaking.

The current electric blowing pipe has the defects of less tone, unrealistic tone reduction degree (the current electronic musical instrument has the sound storage of tone by using a sound source chip, the memory of the sound source chip is less and the sound of the musical instrument cannot be well stored), complex circuit structure and high cost (the current electronic harmonica generally uses one sound source chip and has high cost), and the current electronic harmonica generally adopts an RC oscillating circuit for electronic oscillation sounding, so that the method is simpler, and along with the increasing demands of users, the requirements of the users on the electronic harmonica are higher and higher, and the users hope that the modern electronic harmonica has the functions of multiple tone colors, wide tone domain, variable tone and rich tone.

The electric blowing pipe is also called an electric saxophone or an electronic wind instrument, is innovated on the basis of the traditional musical instrument, belongs to a new musical instrument relative to the traditional wind instrument, and is an electronic musical instrument which is gradually popular in recent years. The principle is to control the current by using the air flow and convert the current signal into sound signal again, thereby playing music. The electric blowing pipe simulates the traditional wind music by utilizing the electroacoustic principle, the musical instrument can simulate various wind music timbres in reality, the playing difficulty of the electric blowing pipe is greatly lower than that of the traditional real wind blowing instrument, the electric blowing pipe is suitable for learning and blowing of various crowds, and particularly for beginners who never touch the musical instrument, the learning of the musical instrument by using the electric blowing pipe is simpler.

When the electric blowing pipe on the market at present emits tremolo, the problem that the use effect of the electric blowing pipe is poor due to the fact that the tone is poor and the sensitivity of the tremolo-emitting element is insufficient exists.

Disclosure of Invention

The utility model provides an electric blowing pipe with a tremolo function, which aims to meet the requirements of current users on the sensitivity of multi-tone, variable tone and tremolo functions of the electric blowing pipe and solve the problems of less tone, insufficient reduction degree of tone, complex circuit structure and high cost of the current electric blowing pipe.

The technical scheme adopted by the utility model is as follows:

an electroblowing pipe with a tremolo function comprises a blowing nozzle pressure sensor (1), a tremolo pressure sensor (2), a key touch sensing circuit (3), an 8-degree key touch sensing circuit (4), an MCU chip (6), an audio DAC chip (7), a bending sound sensor (8), a MIDI output circuit (9), a TF card circuit (10), a voice recognition module (11), an audio power amplifier circuit (12), an audio output socket (13), a loudspeaker (14), a blowing nozzle (A), a tremolo pipe (B), a circuit board (C) and a shell (D);

the shell (D) is an electric blowing pipe main body, the blowing nozzle (A) is communicated with the shell (D), the circuit board (C) is placed inside the shell (D), one end of the tremolo pipe (B) is communicated with the inlet of the blowing nozzle (A), and the other end of the tremolo pipe is communicated with the inlet of the blowing nozzle pressure sensor (1);

the output end of the blowing nozzle pressure sensor (1) is connected with the input end of the MCU chip (6); the output end of the tremolo pressure sensor (2) is connected with the input end of the MCU chip (6); the output end of the key touch sensing circuit (3) is connected with the input end of the MCU chip (6); the output end of the 8-degree key touch sensing circuit (4) is connected with the input end of the MCU chip (6);

the input end of the audio DAC chip (7) is connected with the output end of the MCU chip (6); the output end of the bending sound sensor (8) is connected with the input end of the MCU chip (6); the input end of the MIDI output circuit (9) is connected with the output end of the MCU chip (6); the output end of the TF card circuit (10) is connected with the input end of the MCU chip (6); the output end of the voice recognition module (11) is connected with the input end of the MCU chip (6);

the input end of the audio power amplifier circuit (12) is connected with the output end of the audio DAC chip (7); the input end of the audio output socket (13) is connected with the output end of the audio DAC chip (7);

the input end of the loudspeaker (14) is connected with the output end of the audio power amplifier circuit (12).

The TF_DAT2 signal end of the TF card circuit (10) is connected with the TF_DAT2 signal end of the MCU chip (6); the TF_DAT3 signal end of the TF card circuit (10) is connected with the TF_DAT3 signal end of the MCU chip (6); the TF_CMD signal end of the TF card circuit (10) is connected with the TF_CMD signal end of the MCU chip (6); the TF_CKL_SD_CLK signal end of the TF card circuit (10) is connected with the TF_CKL_SD_CLK signal end of the MCU chip (6); the TF_DAT0 signal end of the TF card circuit (10) is connected with the TF_DAT0 signal end of the MCU chip (6); the TF_DAT1 signal end of the TF card circuit (10) is connected with the TF_DAT1 signal end of the MCU chip (6); the TF_CD signal end of the TF card circuit (10) is connected with the TF_CD signal end of the MCU chip (6); the SD_CMD signal end of the TF card circuit (10) is connected with the SD_CMD signal end of the MCU chip (6); the SD_DAT signal end of the TF card circuit (10) is connected with the SD_DAT signal end of the MCU chip (6);

the CZ_ADC signal end of the blowing nozzle pressure sensor (1) is connected with the CZ_ADC signal end of the MCU chip (6);

the ADC13 signal end of the tremolo pressure sensor (2) is connected with the ADC13 signal end of the MCU chip (6);

the ADCHYSX signal end of the bending sound sensor (8) is connected with the ADCHYSX signal end of the MCU chip (6), and the ADC20HYZY signal end of the bending sound sensor (8) is connected with the ADC20HYZY signal end of the MCU chip (6);

the GN_AN signal end of the audio power amplifier circuit (12) is connected with the GN_AN signal end of the MCU chip (6);

the RRR signal end of the audio DAC chip (7) is connected with the RRR signal end of the audio output socket (13); the LLL signal end of the audio DAC chip (7) is connected with the LLL signal end of the audio output socket (13);

the mcrk1 signal end of the audio power amplifier circuit (12) is connected with the mcrk1 signal end of the audio output socket (13); the L signal end of the audio power amplifier circuit (12) is connected with the L signal end of the audio DAC chip (7);

the USART2_TX signal end of the voice recognition module (11) is connected with the USART2_TX signal end of the MCU chip (6); the USART2_RX signal end of the voice recognition module (11) is connected with the USART2_RX signal end of the MCU chip (6);

the DM-signal end of the MIDI output circuit (9) is connected with the DM-signal end of the MCU chip (6); the DP+ signal end of the MIDI output circuit (9) is connected with the DP+ signal end of the MCU chip (6).

The circuit also comprises an OLED display circuit (15), wherein a No. 3 pin of the OLED display circuit (15) is connected with a No. 64 pin of the MCU chip (6), and an OLED_SCL signal end of the OLED display circuit (15) is connected with an OLED_SCL signal end of the MCU chip (6); and an OLED_SDA signal end of the OLED display circuit (15) is connected with an OLED_SDA signal end of the MCU chip (6).

The circuit also comprises a power supply and power supply management circuit (5), wherein the output end of the power supply and power supply management circuit (5) is connected with the input end of the MCU chip (6); that is, the GN_AN signal end of the power supply and power supply management circuit (5) is connected with the GN_AN signal end of the MCU chip (6).

The blowing nozzle (A) is composed of a soft silica gel blowing nozzle and a closed silica gel hose.

The beneficial effects are that: as a complete product, the utility model stores more than 100 sampling sounds of original musical instruments by using the TF memory card, and can store at least 500 timbres along with the upgrading of the timbres, thereby solving the defect of less timbres of the electronic harmonica; the utility model uses a high-capacity TF memory card to store the sampled tone of a real musical instrument, and the fidelity consistency of the sampled tone with the tone of the real musical instrument reaches 98 percent, so that each tone of an electric blowing pipe is more like a real musical instrument. The MCU chip can adjust tone, volume, tone and the like, and can read data of the storage module (TF card) and control the audio DAC chip to make sound. The addition of the mouthpiece pressure sensor and the tremolo pressure sensor enables the electroblowing tube to realize the tremolo function. The utility model has simple circuit structure and low cost, and effectively reduces the cost and the sales price of the electroblowing tube. The utility model meets the requirements of the current user on multiple timbres, wide gamut, variable tone and rich timbres of the modern electronic harmonica, solves the problems of less timbres, insufficient reduction degree of timbres, complex circuit structure and high cost of the current electroblowing pipe, meets the requirements of the current user on the sensitivity of the multiple timbres, variable tone and tremolo functions of the electroblowing pipe,

drawings

FIG. 1 is a schematic diagram of a bite-actuated device for an electroblowing tube and an electroblowing tube circuit;

FIG. 2 is a schematic circuit diagram of an MCU chip;

fig. 3 is a schematic circuit diagram of a TF card;

FIG. 4 is a schematic circuit diagram of a mouthpiece pressure sensor;

FIG. 5 is a schematic diagram of the chip circuit configuration of the tremolo pressure sensor;

FIG. 6 is a schematic diagram of the peripheral circuit configuration of the tremolo pressure sensor;

FIG. 7 is a schematic circuit diagram of a bending moment sensor;

FIG. 8 is a schematic circuit diagram of an OLED display;

FIG. 9 is a schematic circuit diagram of an audio DAC chip circuit;

fig. 10 is a schematic diagram of a circuit structure of an audio power amplifier circuit;

FIG. 11 is a schematic circuit diagram of a power supply and power management circuit;

FIG. 12 is a schematic circuit diagram of a speech recognition module;

fig. 13 is a schematic circuit configuration of a 6.5mm audio output jack;

fig. 14 is a schematic circuit configuration diagram of a 3.5mm audio output jack;

FIG. 15 is a schematic circuit diagram of a MIDI output socket;

fig. 16 is a schematic circuit diagram of a microphone input socket;

FIG. 17 is a schematic diagram of a circuit configuration of a key, 8-ferry, and sliding touch sensing circuit;

FIG. 18 is a schematic view of a portion of the structure of the utility model;

reference numerals: a blowing nozzle pressure sensor 1, a tremolo pressure sensor 2, a key touch sensing circuit 3, a key touch sensing circuit 4 of 8 degrees, a power supply and power supply management circuit 5, a 6MCU chip, a 7 audio DAC chip, an 8 bending sound sensor, a 9MIDI output circuit, a 10TF card circuit 11, a voice recognition module, a 12 audio power amplifier circuit, a 13 audio output socket and a 14 loudspeaker; and 15 is an OLED display screen, an A mouthpiece, a B tremolo tube, a C circuit board and a D shell.

Detailed Description

The first embodiment specifically describes an electroblowing tube with a tremolo function according to the first embodiment with reference to fig. 1 and 18, wherein the electroblowing tube comprises a blowing nozzle pressure sensor (1), a tremolo pressure sensor (2), a key touch sensing circuit (3), an 8-degree key touch sensing circuit (4), an MCU chip (6), an audio DAC chip (7), a bending sound sensor (8), a MIDI output circuit (9), a TF card circuit (10), a voice recognition module (11), an audio power amplifier circuit (12), an audio output socket (13), a loudspeaker (14), a blowing nozzle (a), a tremolo tube (B), a circuit board (C) and a housing (D);

A second embodiment, a biting device for an electric torch and an electric torch circuit according to the present embodiment will be described with reference to fig. 1 to 18,

In the implementation mode, a program of the electric blowing pipe is operated in the MCU chip (6), the function of the blowing nozzle pressure sensor is that the blowing nozzle pressure sensor (1) and the tremolo pressure sensor (2) sense pressure change when a player blows the blowing nozzle, and the MCU chip (6) reads the pressure numerical control sound. The blowing nozzle (A) is a soft silica gel blowing nozzle and also comprises a section of closed silica gel hose. When a player bites the mouthpiece (A) up and down, the air pressure in the hose is also negligent, and the signal is sensed by the mouthpiece pressure sensor (1) and the tremolo pressure sensor (2), so that the tremolo effect of music is controlled.

The bending sound sensor (8) has the functions of: the sensor is pushed up and down, and the bending effect can be achieved. The audio DAC chip (7) is responsible for converting digital signals into analog signals.

The specific process and principle are as follows:

1. after the blowing nozzle pressure sensor senses that a player has the action of blowing, the MCU chip (6) reads the pressure change data. The MCU chip (6) judges the input states of the keys and the 8-degree keys through the touch sensing circuit to obtain the current played note. The MCU chip (6) reads the audio data in the TF card circuit (10) and converts the current note into an analog circuit through the audio DAC chip (7). The analog audio signal is sent out to a loudspeaker (14) through an audio power amplification circuit (12) to make sound, or is output to an acoustic device through an audio output socket (13).

2. The tremolo pressure sensor (2) senses the occlusion action of the mouthpiece and sends the signal to the MCU chip (6), and the audio signal is processed in the MCU chip (6) to give out the tremolo effect.

3. The power supply and power management circuit (5) supplies power to the whole electric torch to realize the switching-on and switching-off operation.

4. The audio DAC chip (7) is responsible for converting the digital signal of sound into an analog signal.

5. The bending sound sensor (8) is a sliding potentiometer, and when a player pushes the potentiometer, the MCU chip (6) senses the signal and internally processes the audio data to make the audio data give out bending sound effect.

6. The voice recognition module (11) can adjust parameters such as (please set tone color to saxophone) through voice control of the electric torch (good set)

7. A large amount of note data is stored in the TF card circuit (10), and the MCU chip (6) reads the data and decodes the data to output note signals.

8. The MIDI output circuit (9) is the MCU chip (6) outputs data to the computer, can output the note data to the computer, then the computer uses the soft sound source to make sound.

In the third embodiment, which is a further explanation of the biting device for an electroblowing tube and the electroblowing tube circuit described in the second embodiment, the circuit further includes an OLED display circuit (15), pin No. 3 of the OLED display circuit (15) is connected to pin No. 64 of the MCU chip (6), and an oled_scl signal terminal of the OLED display circuit (15) is connected to an oled_scl signal terminal of the MCU chip (6); and an OLED_SDA signal end of the OLED display circuit (15) is connected with an OLED_SDA signal end of the MCU chip (6).

In the fourth embodiment, the present embodiment is further described in the third embodiment, which is a biting device for an electric torch and an electric torch circuit, where the electric torch circuit further includes a power supply and power supply management circuit (5), and an output end of the power supply and power supply management circuit (5) is connected to an input end of the MCU chip (6); that is, the GN_AN signal end of the power supply and power supply management circuit (5) is connected with the GN_AN signal end of the MCU chip (6). .

In a fifth embodiment, the present embodiment is a further description of the biting device for an electroblowing tube and the electroblowing tube circuit according to the first embodiment, wherein the mouthpiece (a) is composed of a soft silica gel mouthpiece and a closed silica gel hose.

Principle of:

the chip in the MCU chip measures a mouthpiece pressure sensor (1) corresponding to a mouthpiece of the electric torch, so that notes which need to occur at present are obtained, note data in a storage module (TF card circuit) are read, the data are sent into the audio DAC chip, and accordingly sound is obtained and is emitted through the audio power amplifier circuit.

The MCU chip can adjust tone, volume, tone and the like, and can read data of the storage module (TF card) and control the audio DAC chip to make sound.

The ADC2 signal end in the microphone input socket is connected with the ADC2 signal end of the MCU chip. For inserting a microphone.

While the utility model has been described with reference to several particular embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted without departing from the scope of the utility model. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the utility model without departing from its scope. Therefore, it is intended that the utility model not be limited to the particular embodiment disclosed, but that the utility model will include all embodiments falling within the scope of the appended claims.

Claims

1. An electric torch with a tremolo function is characterized by comprising a torch pressure sensor (1), a tremolo pressure sensor (2), a key touch sensing circuit (3), an 8-degree key touch sensing circuit (4), an MCU chip (6), an audio DAC chip (7), a bending sound sensor (8), a MIDI output circuit (9), a TF card circuit (10), a voice recognition module (11), an audio power amplifier circuit (12), an audio output socket (13), a loudspeaker (14), a torch (A), a tremolo tube (B), a circuit board (C) and a shell (D);

2. An electroblowing tube having a tremolo function as claimed in claim 1, wherein,

3. An electroblowing tube with tremolo function according to claim 2, characterized in that the circuit further comprises an OLED display circuit (15), pin No. 3 of the OLED display circuit (15) is connected with pin No. 64 of the MCU chip (6), and the oled_scl signal terminal of the OLED display circuit (15) is connected with the oled_scl signal terminal of the MCU chip (6); and an OLED_SDA signal end of the OLED display circuit (15) is connected with an OLED_SDA signal end of the MCU chip (6).

4. An electroblowing tube with tremolo function according to claim 3, characterized in that the circuit further comprises a power supply and power management circuit (5), the output of the power supply and power management circuit (5) being connected to the input of the MCU chip (6); that is, the GN_AN signal end of the power supply and power supply management circuit (5) is connected with the GN_AN signal end of the MCU chip (6).

5. An electroblowing tube with tremolo function according to claim 1, characterized in that the mouthpiece (a) is composed of a soft silica gel mouthpiece and a closed silica gel hose.