CN215417505U

CN215417505U - Wireless electronic musical instrument

Info

Publication number: CN215417505U
Application number: CN202120736161.2U
Authority: CN
Inventors: 陈长春; 胡慧君
Original assignee: Bejing Angel Voice Digital Tech Co ltd
Current assignee: Bejing Angel Voice Digital Tech Co ltd
Priority date: 2021-04-12
Filing date: 2021-04-12
Publication date: 2022-01-04
Anticipated expiration: 2031-04-12

Abstract

The present application provides a wireless electronic musical instrument. The wireless electronic musical instrument includes: the transmitting terminal is used for acquiring a note instruction played by a user and transmitting the note instruction; the receiving end is used for receiving the note instruction, synthesizing musical instrument audio stream according to the note instruction, generating a first audio data packet according to the musical instrument audio stream and outputting the first audio data packet; the receiving end comprises a data interface, the receiving end can be connected with an audio playing device through the data interface, and the audio playing device is used for receiving the first audio data packet and playing audio according to the first audio data packet. The wireless electronic musical instrument does not have a built-in sounding component, realizes audio sounding through external audio equipment, is convenient to carry, and reduces the cost of the wireless electronic musical instrument.

Description

Wireless electronic musical instrument

Technical Field

The application relates to the technical field of musical instruments, in particular to a wireless electronic musical instrument.

Background

Currently, instruments are on the market at a relatively high price, especially traditional instruments, such as: the price of a piano is typically between twenty thousand and hundreds of thousands of RMB's. For a beginner of a piano, purchasing the piano is an expense of one lot. Moreover, after the piano is purchased, if the piano is not interested in the later period, the discount price of resale is large, which is a waste of resources.

In addition, the traditional musical instrument is generally larger in volume and heavier, and is inconvenient to move and carry when going out. The traditional musical instrument does not support a wireless microphone, and if a user wants to realize the function of playing and singing at the same time, the user needs to additionally connect the wireless microphone, so that the cost is higher, and the defects of troublesome wiring and debugging and inconvenience in carrying about exist.

The traditional musical instruments generally do not have AI accompanying exercise and online playing and learning functions, the exercise is relatively boring, especially for beginners, a certain learning threshold is provided, the students can only learn staff theoretical knowledge through professional musical instrument training mechanisms, then exercise is performed according to music scores, the learning process is relatively boring and tasteless, and the beginners often give up learning midway due to daunting emotion.

Disclosure of Invention

The embodiment of the application provides a wireless electronic musical instrument, is provided with including transmitting terminal and receiving terminal, does not set up the sound production unit, but through the receiving terminal according to the synthetic audio frequency of the user control command when playing of transmitting terminal transmission, then realizes playing the function of audio frequency through external audio equipment, conveniently carries, has reduced the musical instrument cost.

In a first aspect, an embodiment of the present application provides a wireless electronic musical instrument, including:

the transmitting terminal is used for acquiring a note instruction played by a user and transmitting the note instruction;

the receiving end is used for receiving the note instruction, synthesizing musical instrument audio stream according to the note instruction, generating a first audio data packet according to the musical instrument audio stream and outputting the first audio data packet;

the receiving end comprises a data interface, the receiving end can be connected with an audio playing device through the data interface, and the audio playing device is used for receiving the first audio data packet and playing audio according to the first audio data packet.

In one possible embodiment, the transmitting end includes: the note device, the first wireless transceiving module and the first main control module; the note device and the first wireless transceiving module are both connected with the first main control module;

the note device is used for generating the note instruction;

the first main control module is used for collecting and transmitting the note instructions;

the first wireless transceiver module is used for receiving the note instruction and transmitting the note instruction;

the receiving end includes: the second wireless transceiver module, the second main control module, the sound effect synthesis module and the SOC chip; the second wireless transceiver module, the sound effect synthesis module and the SOC chip are all connected with the second main control module, and the sound effect synthesis module is also connected with the SOC chip;

the second wireless transceiver module is used for receiving the note instruction;

the second main control module is used for collecting and transmitting the note instructions;

the sound effect synthesis module is used for receiving the note instruction, generating the musical instrument audio stream according to the note instruction and transmitting the musical instrument audio stream;

the SOC chip is used for receiving the musical instrument audio stream, generating the first audio data packet according to the musical instrument audio stream and outputting the first audio data packet.

In one possible implementation, the transmitting end further includes: a tone adjusting device and a musical instrument volume adjusting device;

the tone adjusting device is used for generating a tone adjusting instruction; the musical instrument volume adjusting device is used for generating musical instrument volume adjusting instructions; the tone adjusting device and the musical instrument volume adjusting device are both connected with the first main control module;

the first main control module is used for acquiring and transmitting the tone adjustment instruction and the instrument volume adjustment instruction;

the first wireless transceiving module is also used for receiving and transmitting the tone color adjusting instruction and the musical instrument volume adjusting instruction;

the second wireless transceiver module is further configured to receive the tone color adjustment instruction and the instrument volume adjustment instruction transmitted by the first wireless transceiver module;

the second main control module is also used for acquiring and transmitting the tone color adjusting instruction and the instrument volume adjusting instruction;

the sound effect synthesis module is also used for receiving the tone adjustment instruction and adjusting the audio stream of the musical instrument according to the tone adjustment instruction;

the SOC chip is also used for receiving the instrument volume adjusting instruction and adjusting the instrument audio stream according to the instrument volume adjusting instruction.

In one possible embodiment, the first main control module further comprises a MIDI output interface and a sustain input interface;

the first main control module is also used for outputting MIDI files corresponding to the musical instrument audio streams through the MIDI output interface and acquiring a sustain instruction through the sustain input interface;

the first wireless transceiving module is also used for acquiring and transmitting the lingering instruction;

the second main control module is also used for collecting and transmitting the delay instruction received by the second wireless transceiver module;

and the sound effect synthesis module is also used for receiving the sound-extending instruction and adjusting the audio stream of the musical instrument according to the sound-extending instruction.

In one possible implementation, the receiving end further includes: UHF analysis chip; the UHF analysis chip is connected with the second main control module and the SOC chip;

the UHF analysis chip is used for receiving UHF signals output by the UHF wireless microphone, analyzing the UHF signals to obtain human voice audio streams and transmitting the human voice audio streams;

the SOC chip is also used for receiving the voice audio stream, generating a second audio data packet according to the voice audio stream and the musical instrument audio stream and outputting the second audio data packet; the audio playing device is further used for playing audio according to the second audio data packet.

In one possible implementation, the transmitting end further includes: a microphone volume adjustment device; the microphone volume device is used for generating a microphone volume adjusting instruction; the microphone volume device is connected with the first main control module and used for generating a microphone volume adjusting instruction;

the first main control module is also used for acquiring and transmitting the microphone volume adjusting instruction;

the first wireless transceiving module is also used for receiving and transmitting the microphone volume adjusting instruction;

the second wireless transceiver module is further used for receiving the microphone volume adjusting instruction;

the second main control module is also used for acquiring and transmitting the microphone volume adjusting instruction;

the SOC chip is further used for receiving the microphone volume adjusting instruction and adjusting the human voice audio stream according to the microphone volume adjusting instruction.

In a second aspect, an embodiment of the present application further provides a wireless electronic musical instrument system, including: the wireless electronic musical instrument and the audio playback terminal in any one of the embodiments of the foregoing first aspect;

the audio playing terminal is used for receiving a first audio data packet or a second audio data packet sent by a receiving end of the wireless electronic musical instrument and playing audio according to the first audio data packet or the second audio data packet; the first audio data packet is obtained by the receiving end according to the musical instrument audio stream, and the second audio data packet is obtained by the receiving end according to the musical instrument audio stream and the human voice audio stream.

In one possible implementation, the audio playback terminal includes: the device comprises a sound acquisition module, a sound mixing module, a playing module and a loudspeaker; the sound mixing module is respectively connected with the sound acquisition module and the playing module, and the playing module is connected with the loudspeaker;

the sound acquisition module is used for receiving and transmitting the first audio data packet or the second audio data packet;

the sound mixing module is used for receiving the first audio data packet or the second audio data packet, mixing the first audio data packet and the accompaniment audio to obtain a first audio and transmitting the first audio, or mixing the second audio data packet and the accompaniment audio to obtain a second audio and transmitting the second audio;

the playing module is used for receiving the first audio or the second audio and driving the loudspeaker to play the first audio or the second audio.

Drawings

Fig. 1a is a schematic structural diagram of a wireless electronic musical instrument provided in an embodiment of the present application;

fig. 1b is a schematic view of a usage scenario of a wireless electronic musical instrument according to an embodiment of the present application;

fig. 1c is a schematic view of a usage scenario of a wireless electronic musical instrument according to an embodiment of the present application;

fig. 2 is a schematic structural diagram of a transmitting terminal of a wireless electronic musical instrument according to an embodiment of the present application;

fig. 3a is a schematic structural diagram of a transmitting terminal of a wireless electronic piano provided in an embodiment of the present application;

fig. 3b is a front view of an emitting end of a wireless electronic piano provided in the embodiment of the present application;

fig. 4 is a schematic structural diagram of a receiving end of a wireless electronic musical instrument according to an embodiment of the present application;

fig. 5 is a schematic structural diagram of a receiving end of a wireless electronic piano according to an embodiment of the present application;

fig. 6 is a schematic structural diagram of a wireless electronic musical instrument system according to an embodiment of the present application;

fig. 7 is a schematic structural diagram of an audio playing device according to an embodiment of the present application.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions of the embodiments of the present application will be described below with reference to the accompanying drawings.

In the description of the embodiments of the present application, the words "exemplary," "for example," or "for instance" are used to mean serving as an example, instance, or illustration. Any embodiment or design described herein as "exemplary," "e.g.," or "e.g.," is not to be construed as preferred or advantageous over other embodiments or designs. Rather, use of the words "exemplary," "e.g.," or "exemplary" is intended to present relevant concepts in a concrete fashion.

In the description of the embodiments of the present application, the term "and/or" is only one kind of association relationship describing an associated object, and means that three relationships may exist, for example, a and/or B may mean: a exists alone, B exists alone, and A and B exist at the same time. In addition, the term "plurality" means two or more unless otherwise specified. For example, the plurality of systems refers to two or more systems, and the plurality of screen terminals refers to two or more screen terminals.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit indication of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. The terms "comprising," "including," "having," and variations thereof mean "including, but not limited to," unless expressly specified otherwise.

Fig. 1a is a wireless electronic musical instrument provided in an embodiment of the present application. As shown in fig. 1, the wireless electronic musical instrument 100 includes: a transmitting end 101 and a receiving end 102.

The transmitting terminal 101 obtains the note instruction played by the user and sends the note instruction to the receiving terminal 102.

The receiving end 102 receives the note command, synthesizes the musical instrument audio stream according to the note command, then generates a first audio data packet according to the musical instrument audio stream, and outputs the first audio data packet through the data interface of the receiving end 102.

The receiving end 102 may be connected to the audio device 102 through a data interface, and the audio device 102 drives a built-in speaker thereof to play audio according to the first audio data packet.

Optionally, the data interface may be a USB interface or a 3.5mm audio interface, or the receiving end 102 has both a USB interface and a 3.5mm audio interface, which is not specifically limited in this embodiment of the application. When the receiving end 102 has both the USB interface and the 3.5mm audio interface, the receiving end can output two audio packets to different audio devices 102.

Optionally, the audio device may be an intelligent host capable of playing audio, such as a smart phone, a smart television, and a notebook computer, or may also be an audio device, such as an active sound box, and the embodiment of the present application is not particularly limited.

As shown in the scenario of fig. 1b, the receiving end 102 may be connected to the smart host through a USB interface. In one embodiment, the smart host may also have an instrument APP built in. As shown in fig. 1c, the receiving end 102 may also be connected to a speaker for playing through a 3.5mm audio interface. The receiving end 102 may be connected to a charger baby or a power adapter through a USB interface for charging.

Alternatively, in the scenario of fig. 1b and 1c, the receiving end 102 may also be wirelessly connected to a UHF wireless microphone, which collects singing information of the user and then outputs a UHF signal to the receiving end 102, which will be described in detail later.

Fig. 2 is a schematic structural diagram of a transmitting end according to an embodiment of the present application. As shown in fig. 2, the transmitting end 101 includes: the main control system comprises a first main control module 1011, a note device 1012, a musical instrument volume adjusting device 1013, a tone color adjusting device 1014, a first wireless transceiving module 1015 and a display module 1016, wherein the note device 1012, the musical instrument volume adjusting device 1013, the tone color adjusting device 1014, the first wireless transceiving module 1015 and the display module 1016 are all connected to the first main control module 1011.

The note device 1012 is a playing device of the wireless electronic musical instrument 100, and the note device 1012 can generate note instructions according to a user's pressing or other playing actions; the instrument volume adjustment device 1013 and the tone adjustment device 1014 may provide the user with a selection of tone and volume, and generate a tone adjustment instruction and a volume adjustment instruction according to the user's adjustment operation, respectively. Wherein, the note device 1012, the instrument volume adjustment device 1013 and the tone color adjustment device 1014 can be provided for users through keys or touchable forms.

The first main control module 1011 is used for collecting control instructions of a user during playing, for example, a note instruction generated by the note device 1012, a tone color adjustment instruction generated by the instrument volume adjustment device 1013, and a volume adjustment instruction generated by the tone adjustment device 1014. After obtaining the control command, the first main control module 1011 transmits the control command to the first wireless transceiving module 1015. The first main control module 1011 is further configured to display the current tone and volume to the user through the display module 1016 according to the tone and volume adjustment instruction. The display module 1016 may be one of an OLED display screen, an LCD pen panel, an LCD dot matrix screen, a TFT liquid crystal screen, and the like. Optionally, the first main control module 1011 may be a Micro Controller Unit (MCU), or may be other control devices, which is not limited in this application. Optionally, the first main control module 1011 further includes a MIDI interface 10111, which can convert the control instruction into a MIDI file for output; the MIDI interface can be externally connected with equipment such as a notebook computer and the like and is used for carrying out operations such as song editing and the like on MIDI files; the first main control module 1011 may further include a sustain interface 10112 for collecting a sustain instruction, and then transmitting the sustain instruction as a control instruction to the first wireless transceiving module 1015.

After receiving the control command, the first wireless transceiver module 1015 transmits the control command to the receiving end 102 in a wireless transmission manner. The transmitted information format may be a custom data format, or may adopt a standard MIDI data format. Optionally, the first wireless transceiver module 1015 may be at least one of a 2.4G wireless module, a 5.8G wireless module, and a bluetooth module, and the first wireless transceiver module 1015 further includes: and a first antenna 10151 for transmitting the control command in the form of electromagnetic waves.

In one embodiment, when the wireless electronic musical instrument 100 is a wireless electronic piano, the structure of the transmitting terminal 101 of the wireless electronic piano is as shown in fig. 3a, and the transmitting terminal 101 of the wireless electronic piano may specifically include: OLED display screen, power key, pair key, microphone switch, dynamics piano key (including 88 buttons), wireless transceiver module and MCU, wherein, MCU all is connected to aforementioned a plurality of parts, and MCU still includes at least one MIDI output interface and a delay interface. The power key is used for controlling the switch of the wireless electronic piano, the pairing key is used for being connected with the receiving end 102 of the wireless electronic piano in a pairing mode, and the delay interface can be externally connected with a delay pedal.

In addition, the wireless electronic piano can also comprise the USB Type-C, a charging module, a 18650 lithium battery and a power supply module, and the bearable power supply can be VCC 3.3 v. 18650 lithium batteries can be charged through a USB type-C interface.

The OLED screen is in a 128-by-64 dot matrix display mode, the display color is black background and white characters, and the OLED screen can display numbers, Chinese characters, English characters, icons and the like. The displayed content may include: battery capacity, 0% -100%; current microphone functions: on/off; the charging state is as follows: not show at ordinary times, only show when USB charger is plugged in, if charging, show: in charging, if charging is completed, displaying: completing charging; current timbre: 1-128 (numeric plus Chinese display, Chinese name for tone, such as 4: grand piano); current piano volume: 0 to 100; current microphone functions: on/off; current microphone volume: 0-100.

In one embodiment, when the wireless electronic musical instrument 100 is a wireless electronic piano, a front view of the transmitting end 101 of the wireless electronic piano is shown in fig. 3b, and includes: a key portion on the left side and a function key portion on the right side. Wherein, the key part can be a folded piano keyboard to reduce the volume of the piano; in particular, the keyboard can be an 88-key standard piano keyboard; the function key part includes: power key, tone key and piano volume key and OLED display screen. In addition, the wireless electronic piano can also be provided with a function of controlling a microphone, and a control instruction for the microphone can be output in a scene that a user plays while playing a piano. The wireless electronic piano can also be correspondingly provided with a microphone switch and a microphone volume key for controlling the microphone.

The operation of the wireless electronic piano will be described with reference to fig. 3a, taking the wireless electronic musical instrument 100 as an example of the wireless electronic piano.

When the user uses the wireless electronic piano, the user can press the power key on the transmitting terminal 101 shown in fig. 3a for a long time to control the MCU to be electrified and started, the microphone switch key is pressed for a short time to switch on and off the microphone, different timbres can be selected by adjusting the coding potentiometer, various timbres can be built in, and corresponding timbre names are displayed on the OLED, such as' 1: conventional piano "," 3: accordion ", etc.; the user's accessible adjusts the volume of piano through adjusting code potentiometre "piano volume", and corresponding volume information can be shown to OLED simultaneously, can also adjust code potentiometre "microphone volume", adjusts microphone volume, and OLED synchronous display simultaneously.

The microphone function switch instruction, the tone selection instruction, the piano volume adjustment instruction and the microphone volume adjustment instruction are all provided with power-off memory, the instructions are sent to the wireless transceiver module through the serial port by the MCU, the instructions are sent to the synthesis end (receiving end) by the wireless transceiver module, after the piano keyboard is started up every time, the parameters stored last time are sent to the synthesis end in a wireless mode, and the adjusted parameters are updated independently in the user adjustment process.

When a user plays, the force piano keyboard can collect playing keys of the user and current force information in real time, pedal information of the user is read through damper pedal input, the information is sent to a synthesis end in real time through a wireless module in a MIDI format, and the information is output through a MIDI OUT interface of the keyboard.

The wireless electronic musical instrument that this application embodiment provided does not take speaker and any sound producing component, and it can adopt wireless transmission's mode to go out control command transmission and carry out audio synthesis and broadcast, has reduced the cost of musical instrument, and the outward appearance is small and exquisite light, conveniently goes out and the performance is carried.

Fig. 4 is a schematic structural diagram of a receiving end in the wireless electronic musical instrument 100 in the embodiment of the present application. As shown in fig. 4, the receiving end 102 includes: a second main control module 1021, a second wireless transceiver module 1022, a sound effect synthesis module 1023 and an SOC chip 1024. The second wireless transceiver module 1022, the sound effect synthesis module 1023 and the SOC chip 1024 are connected to the second main control module 1021, and the sound effect synthesis module is further connected to the SOC chip 1024.

In this embodiment, the receiving end 102 is wirelessly connected to the transmitting end 101. The second main control module 1021 is configured to collect a control instruction that the second wireless transceiver module 1022 receives the control instruction transmitted by the first wireless transceiver module 1011, transmit the control instruction to the sound effect synthesis module 1022 to synthesize an audio stream of the musical instrument, and finally control the SOC chip 1024 to output audio data packed in the audio stream of the musical instrument. The second radio 1022 also includes a second antenna 10221.

Optionally, as shown in fig. 2, the receiving end 102 is further provided with a UHF analysis chip 1025, and the UHF analysis chip 1025 is connected to the second main control module 1021 and the SOC chip 1024, wherein the UHF analysis chip 1025 may be provided with a UHF antenna for receiving a UHF signal output by the UHF wireless microphone. The UHF analysis chip 1025 is further connected to a UHF antenna for receiving UHF signals. In the scenario of fig. 1b and 1c, UHF resolution chip 1025 may receive the UHF signals output by the UHF wireless microphone.

When the wireless electronic musical instrument 100 is paired with the UHF wireless microphone, the UHF analysis chip 1025 analyzes the UHF signal output by the microphone to obtain the voice audio stream of the user, and sends the voice audio stream to the SOC chip 1024.

Then, the second main control module 1021 controls the SOC chip 1024 to mix the audio stream of the human audio and the audio stream of the musical instrument, and after a second audio data packet is obtained, the second audio data packet is output through the data interface 1026. The SOC chip 1024 may output through a USB data interface or a 3.5mm audio interface. In one embodiment, SOC chip 1024 may be a USB chip.

Optionally, the second main control module 1021 further directly sends the instrument volume adjustment instruction and the microphone volume adjustment instruction to the SOC chip 1024 through a built-in serial UART (Universal Asynchronous Receiver Transmitter), and the SOC chip 1024 respectively adjusts the volume of the instrument audio stream and the volume of the vocal audio stream according to the instrument volume adjustment instruction and the microphone volume adjustment instruction. The second main control module 1021 can be an MCU or other control device, and the second main control module 1021 is further configured to initialize the second wireless transceiver module, the UHF analysis chip, and the sound effect synthesis module. It can be understood that the human voice audio stream and the musical instrument audio stream are different audio streams at the same time, that is, one user may perform the wireless electronic musical instrument 100 while singing with the microphone, or one user may perform the music and another user sings, and the application does not limit whether the performance and the singing are the same user.

The receiving end 102 of the wireless electronic musical instrument is internally provided with a UHF analysis chip, a special UHF wireless microphone can be supported, and the receiving end can emit human voice by means of a loudspeaker of audio playing equipment or directly output the human voice to a source sound box from a 3.5mm audio interface without any additional audio equipment.

The operation of the receiving end 102 of the wireless electronic musical instrument 100, which is a wireless electronic piano, is described with reference to fig. 5.

The receiving terminal 102 is powered by an external USB data interface, and has a built-in power module for converting USB 5V into a stable 3.3V output to provide a stable power supply. The receiving end has 2 kinds of use scenes, can divide into external active audio amplifier scene and external intelligent host computer scene. The MCU is a master control singlechip of the receiving end and is responsible for processing initialization and controlling all chips and modules.

The wireless transceiver module may be a 2.4G wireless module, a 5.8G wireless module or a bluetooth module, and is responsible for receiving wireless data of the wireless electronic piano, where the wireless data includes control instructions in the MIDI format, and the control instructions are instructions for tone color selection, volume adjustment and the like sent from the musical instrument (as described above). The sound effect synthesis module is a professional sound effect synthesis module used for converting MIDI data stream into piano sound, and a hardware sound wave table is integrated in the sound effect synthesis module, so that the sound wave table with multiple channels can be played simultaneously. The UHF analysis chip is responsible for receiving UHF signals (human voice) and sending the human voice signals to the USB chip for processing. The USB chip is dedicated USB Audio chip, takes 2 ways to be Audio input and 1 way analog Audio output, can adjust the volume of 2 ways Audio alone, then carries out the Audio mixing back with 2 ways Audio, uploads through the USB interface, passes through 3.5mm Audio interface output analog Audio signal simultaneously. The USB chip can synchronously upload USB instructions (piano playing information in MIDI format) while uploading audio data streams through the USB interface. In addition, a green LED indicator light can be arranged for the wireless transceiving module to display the state of the wireless transceiving module, and the wireless transceiving module is normally on but flickers when receiving data; a blue LED indicating lamp can be arranged on the UHF analysis chip, and when the microphone receives the voice of a person, the blue LED indicating lamp is on for a long time, otherwise, the blue LED indicating lamp is off.

When the receiving end 102 is in operation, the MCU queries the instructions received by the wireless transceiver module in real time, and classifies the instructions: if receiving the tone adjusting instruction, the MCU sends the tone adjusting instruction to the sound effect synthesis module, and the sound effect synthesis module switches to the corresponding tone; if receiving the volume (piano volume, microphone volume) instruction, then sending the instruction to the USB chip, after receiving the instruction, the USB chip adjusts the volume of the corresponding input audio stream. If an instruction of a microphone function switch is received, controlling the starting and stopping of the UHF analysis chip; if receiving MIDI playing information (piano key value, force and damper pedal) transmitted by a piano keyboard, the MCU transmits the MIDI playing information to the sound effect synthesis module, and the sound effect synthesis module determines audio streams of the MIDI information and corresponding piano sound effect files in the real-time playing hardware sound wave table and outputs the audio streams to the USB chip.

After the transmitting terminal 101 of the wireless electronic musical instrument 100 needs to match the code with the receiving terminal 102, the wireless electronic musical instrument 100 can be normally used, if the receiving terminal 102 is powered on, the green LED is in a constant-speed flashing state (0.5 second on and 0.5 second off), it may be that the wireless electronic piano is not started, and if the wireless electronic piano is started, the receiving terminal green LED is still in the constant-speed flashing state, it indicates that no code matching is performed. At this time, the code is required to be checked and then the code can be normally used. The specific code matching process is as follows:

the user controls the piano to start, then the pairing key of the transmitting terminal 101 is pressed for more than 3 seconds, the OLED display of the musical instrument is carrying out code pairing, the musical instrument transmits a code pairing instruction with a 16-bit unique ID code of the musical instrument through the wireless transmitting and receiving module, the synthesizing terminal receives the code pairing instruction through the wireless transmitting and receiving module at the moment, the 16-bit unique ID of the musical instrument is stored, a code pairing success instruction is sent to the musical instrument terminal through the wireless transmitting and receiving module, the OLED screen of the musical instrument terminal displays that the code pairing is successful, and meanwhile, the green LED of the synthesizing terminal is long-lighted. The whole code matching process is finished. If the instrument end does not receive the code matching success command of the synthesis end for more than 5 seconds, the OLED screen of the instrument end displays that the code matching fails, and the instrument end needs to match the codes again according to the flow until the code matching succeeds.

The application provides a receiving terminal, it is a small and exquisite synthetic end, a control command for receiving wireless electronic musical instrument output, then the audio information output that synthetic control command corresponds, wherein, the USB interface and the 3.5mm analog audio frequency of receiving terminal configuration for this receiving terminal 102 both can receive the USB interface of intelligent host computer, on audio unit and the speaker sound production with the help of the intelligent host computer, also can receive the active audio amplifier system through the 3.5mm audio output of synthetic end. The receiving end 102 is internally provided with a high-quality musical instrument sound effect synthesis module, and is preset with various timbres, so that the requirements of beginners on learning and common performance can be met.

Based on the wireless electronic musical instrument 100 provided in the above-mentioned embodiment of the present application, the present application also provides a wireless electronic musical instrument system, which includes the wireless electronic musical instrument 100 and the audio playback device 200, as shown in fig. 6. Optionally, the wireless electronic musical instrument 100 may be connected to an audio playing device through a data interface 1026, and the data interface 1026 may be a USB interface or a 3.5mm audio interface.

The audio playing terminal 200 is configured to receive a first audio data packet or a second audio data packet sent by the receiving end 102 of the wireless electronic musical instrument 100, and play audio according to the first audio data packet or the second audio data packet; the first audio data packet is obtained by the receiving end 102 according to the musical instrument audio stream, and the second audio data packet is obtained by the receiving end 102 according to the musical instrument audio stream and the human voice audio stream.

In one possible implementation, as shown in fig. 7, the audio playback terminal may include: a sound collection module 301, a mixing module 303, a playing module 304 and a loudspeaker 310.

The sound collection module 301 is configured to receive the first audio data packet or the second audio data packet and transmit the first audio data packet or the second audio data packet to the mixing module 303.

The audio mixing module 303 is configured to receive a first audio data packet or a second audio data packet, mix the first audio data packet and the accompaniment audio, obtain the first audio and transmit the first audio, or mix the second audio data packet and the accompaniment audio, obtain the second audio and transmit the second audio. Wherein the accompaniment audio is selected by the user while playing the wireless electronic musical instrument 100. In an embodiment, as shown in fig. 7, the audio playback terminal may further include an accompaniment processing module 302 for performing a key processing on the accompaniment audio and transmitting the processed accompaniment audio to the mixing module 303.

The playing module 304 is configured to receive 4 the first audio or the second audio, and drive the speaker 310 to play the first audio or the second audio.

Taking the wireless electronic musical instrument 100 as a wireless electronic piano as an example, as shown in fig. 7, the audio player terminal 300 may further include a piano key instruction parsing module 305, an exercise module 306, a following bullet module 307 and a scoring module 308. The user can select the practice mode and the following shot mode.

In the following-playing mode, the following-playing module 301 generates notes to be played according to the MIDI files selected by the user in the music library before playing the wireless electronic musical instrument 100, and displays the notes to be played through the display interface configured in the terminal 300; then, the piano key instruction analysis module 305 receives and analyzes the note instruction played by the user to obtain the note actually played by the user; the scoring module 308 determines whether the user performs correctly according to the note that the user performs and the note that the user actually performs, so as to determine the score of the note that the user performs currently according to the preset scoring rule. In addition, the scoring module 305 may display the notes actually performed by the user through the display interface, and mark the notes actually performed by the user differently to distinguish the notes determined by the popping module 301 when the user performs an error.

Optionally, the audio playing terminal 300 further includes a work recording and sharing module 306, configured to save the audio stream obtained by the mixing module 303 as an audio file in a preset format, and then share the audio file with another platform or device.

In one embodiment, the audio playing terminal 300 may further provide an online video teaching function and an online community function, respectively provide the user with a celebrity one-to-one teaching function and a friend chat sharing function, and may share respective works and communicate learning experiences with each other.

This wireless electronic musical instrument possesses intelligent learning function, can install special musical instrument APP and can be in order to realize the purpose of practicing the musical instrument on intelligent host computers such as smart mobile phone and panel computer, embed massive song storehouse and musical instrument accompaniment in APP to and AI with exercise mode, function such as exercise mode, can grade in real time at the in-process of playing, can also mark out the sound of playing the mistake in real time, can make the performance works of oneself, can also share through friend circle or APP with the works. The APP is internally provided with online musical instrument teachers teaching videos, and beginners can use the musical instrument to start hands quickly.

In one embodiment, the audio playback terminal 300 may be a computer program product that, when executed by a computing device, may implement the functionality described above. The computing device includes a processor and a memory, the memory storing computer instructions that, when executed by the processor, implement the functionality of the above-described embodiments of the present application.

It is to be understood that the various numerical references referred to in the embodiments of the present application are merely for descriptive convenience and are not intended to limit the scope of the embodiments of the present application.

Claims

1. A wireless electronic musical instrument, comprising:

2. The wireless electronic musical instrument according to claim 1, wherein the transmitting terminal comprises: the note device, the first wireless transceiving module and the first main control module; the note device and the first wireless transceiving module are both connected with the first main control module;

the note device is used for generating the note instruction;

3. The wireless electronic musical instrument according to claim 2, wherein the transmitting terminal further comprises: a tone adjusting device and a musical instrument volume adjusting device; the tone adjusting device and the musical instrument volume adjusting device are both connected with the first main control module;

the tone adjusting device is used for generating a tone adjusting instruction; the musical instrument volume adjusting device is used for generating musical instrument volume adjusting instructions;

4. The wireless electronic musical instrument of claim 2, wherein the first master control module further comprises a MIDI output interface and a sustain input interface;

5. The wireless electronic musical instrument according to claim 2, wherein the receiving end further comprises: UHF analysis chip; the UHF analysis chip is connected with the second main control module and the SOC chip;

6. The wireless electronic musical instrument according to claim 5, wherein the transmitting terminal further comprises: a microphone volume adjustment device; the microphone volume device is connected with the first main control module and used for generating a microphone volume adjusting instruction;