CN210667769U - Programmable sound source synthesis controller supporting acquisition input and control output - Google Patents

Abstract

A programmable sound source synthesis controller supporting acquisition input and control output. By adopting the technology of a singlechip Atmel ATMega32U4, various sensor signals including capacitance touch signals, digital signals and analog signals can be acquired through setting of a self-developed Mixly graphical programming library, the acquired signals are processed and directly output to control various actuators or processed into standard MIDI protocol signals and sent to an onboard MIDI decoding chip VLSI VS1053B, and finally, dual-channel audio signals are output through a standard audio interface, so that the timbres of 128 musical instruments can be realized, and the independent setting and control of volume, timbres and channels can be realized; and meanwhile, the functions of reading music files carried by the SD card, controlling music playing name, volume, pause, continuous playing and the like through software programming processing are supported.

Description

Programmable sound source synthesis controller supporting acquisition input and control output

1. Field of the invention

The utility model relates to a controller of digital musical instrument specifically is a support to gather input, control output's synthetic controller of sound source able to programme, relates to the synthetic processing control technology field of sound source, especially a can directly gather control signal input output's synthetic controller of sound source able to programme, including core singlechip, Midi sound source synthesizer (audio decoder), electric capacity touch sensor and input/output control port.

2. Background of the invention

In the prior art, a sound source synthesizer is specially used for scenes such as professional performance, and external equipment of the synthesizer is limited to an MIDI interface and cannot be adapted to more individual requirements; the existing sound source synthesizer can not be self-defined to be programmed and modified; the sensor signal can not be collected, and the signal can not be output to control the actuator and other mechanisms. For example, in the prior art (CN103744335A), the external device is single, the input mode is single, the processing mode is complex, and the method is not suitable for the needs of various occasions.

3. Contents of utility model

In order to solve the above problems in the prior art, the utility model provides a support to gather the signal, the programmable sound source synthesis controller of control output, adopt Atmel ATMega32U4 singlechip technique, can set up through current MIXLY graphical programming library, gather all kinds of sensor signals, including electric capacity touch signal, digital signal, analog signal, handle the signal of gathering, direct output control all kinds of executor, or handle into standard MIDI protocol signal, send to on-board MIDI decoding chip VLSI VS1053B, through standard audio interface at last, output dual channel audio signal, can realize 128 musical instrument timbres, can realize setting up control alone to volume, timbre, passageway; and meanwhile, the functions of reading music files carried by the SD card, controlling music playing name, volume, pause, continuous playing and the like through software programming processing are supported.

A programmable sound source synthesis controller supporting acquisition input and control output, comprising: the method comprises the following steps: the capacitive touch interface is electrically connected with an external capacitive control screen and transmits a control signal of the external capacitive control screen to the single chip microcomputer, the single chip microcomputer receiving port receives a sound source input signal and a sensor input signal from the input and output port, and the single chip microcomputer output port is electrically connected with the Midi sound source synthesis decoding two-in-one chip and the Micro SD card slot.

Further, the singlechip is Atmel ATMega32U4, and the singlechip directly outputs the received capacitance touch signal, digital signal and analog signal to an external actuator, or forms a standard MiDi protocol signal or MP3 decoding control instruction and sends the standard MiDi protocol signal or MP3 decoding control instruction to an onboard MiDi sound source synthesis and decoding two-in-one chip.

Furthermore, the MiDi sound source synthesis and decoding two-in-one chip is VLSI VS1053B, and the MiDi sound source synthesis and decoding two-in-one chip outputs the two-channel audio signal through a standard audio interface.

Furthermore, the mode setting switch is electrically connected with the Midi sound source synthesis and decoding two-in-one chip, and controls the Midi sound source synthesis and decoding two-in-one chip to be in the Midi sound source synthesis mode or the MP3 decoding mode.

Further, the external actuator is a sound box or an earphone.

The utility model discloses an unique function lies in: the programmable singlechip is combined with the existing MIXLY graphical programming software to realize programming setting, various sensor signals including capacitance touch signals, digital signals and analog signals are collected, the collected signals are processed, and various actuators are directly output and controlled;

according to actual requirements, after the singlechip is programmed, outputting a standard MIDI protocol signal, sending the standard MIDI protocol signal to an onboard MIDI decoding chip, and finally outputting a two-channel audio signal through a standard audio interface;

according to actual requirements, after the singlechip is programmed, music files onboard the SD card are read, and the functions of controlling music playing name, volume, pause, continuous playing and the like are processed and controlled through software programming.

4. Description of the drawings

FIG. 1 is a layout diagram of the novel on-board processor of the present invention;

fig. 2 is a schematic circuit diagram of the present invention.

FIG. 3 is a schematic diagram of USB download interface (with ESD protection) and indicating lamp circuit connection

FIG. 4 is a schematic diagram of the SD card control pin and the SD card slot circuit connection

FIG. 5 is a schematic diagram of the circuit relationship of the minimum system of the master control single chip microcomputer

FIG. 6 is a schematic diagram showing the relationship of the mode setting switch circuit

FIG. 7 is a diagram illustrating the correspondence between the external standard Arduino UNO R3 interfaces

FIG. 8 is a schematic diagram of the minimum system circuit relationship of the Midi decoding audio source synthesis chip

FIG. 9 is a schematic diagram of a circuit structure of a power supply system (5V/3.3V/1.8V)

FIG. 10 is a schematic circuit diagram of a capacitive touch sensor circuit

Part name: 1. the device comprises a capacitive touch port, 2 input/output ports, 3. a single chip microcomputer, 4. a Midi sound source synthesis and decoding two-in-one chip, 5. an input/output port II, 6. an audio output port, 7. a Micro SD card slot, 8. a mode setting switch, 9. a USB programming and power supply two-in-one interface, 10. an external battery power supply interface and 11. a power switch;

5. detailed description of the preferred embodiments

A sound source synthesis controller comprises a capacitive touch port 1, an input/output port 2, a singlechip 3, a Midi sound source synthesis and decoding two-in-one chip 5, an input/output port 6, an audio output port 6, a Micro SD card slot 7, a mode setting switch 8, a USB programming and power supply two-in-one interface 9, an external battery power supply interface 10 and a power switch 11; the controller comprises a plurality of touch interfaces and input and output ports, can be realized by graphical programming software, senses touch changes through the touch interfaces, detects sensor signal changes through the input ports, and controls the peripheral actuator through the output ports after being processed by the single chip microcomputer according to the logic requirements of practical application; outputting standard MIDI protocol signals or MP3 decoding control instructions (specifically determining that the MIDI decoding chip is in a MIDI sound source synthesis mode or an MP3 decoding mode according to a mode setting switch), sending the standard MIDI protocol signals or MP3 decoding control instructions to the MIDI sound source synthesis decoding chip, decoding the corresponding protocol, outputting audio signals, and being capable of being externally connected with a sound box or an earphone to hear music;

by adopting the singlechip technology, various sensor signals including capacitance touch signals, digital signals and analog signals can be acquired through graphical programming setting, the acquired signals are processed and directly output to control various actuators, or the signals are processed into standard MIDI protocol signals and sent to an onboard MIDI decoding chip, and finally, dual-channel audio signals are output through a standard audio interface, so that the tone colors of 128 stringed instruments can be realized, and the independent setting control of the volume, the tone colors and the channels can be realized; and meanwhile, the functions of reading music files carried by the SD card, controlling music playing name, volume, pause, continuous playing and the like through software programming processing are supported.

A sound source synthesizing controller can support external input and output, wherein the input can be a digital signal, an analog signal and a protocol bus signal, and the output control can be a digital signal, an analog signal and a protocol bus signal;

the on-board multiple capacitive touch electrodes can support external conductors to be externally connected to the electrodes, extend the electrodes to touch, and automatically calibrate touch thresholds and touch sensitivity;

when the single chip microcomputer plays audio, a standard MIDI protocol is adopted to transmit the audio to a sound source synthesizer, the sound source is a MIDI chip, the conversion from MIDI data to audio is realized, and the audio is played through an external sound box and an earphone;

when MP 3/WAV music is played, the information of the SD card is read by the singlechip, then converted into a control instruction, decoded by the decoding chip, converted into an audio signal, and played through an external sound box and an earphone;

a sound source synthesis controller comprises a capacitive touch port 1, an input/output port 2, a singlechip 3, a Midi sound source synthesis and decoding two-in-one chip 5, an input/output port 6, an audio output port 6, a Micro SD card slot 7, a mode setting switch 8, a USB programming and power supply two-in-one interface 9, an external battery power supply interface 10 and a power switch 11; by adopting the singlechip technology, various sensor signals including capacitance touch signals, digital signals and analog signals can be acquired through graphical programming setting, the acquired signals are processed and directly output to control various actuators, or the signals are processed into standard MIDI protocol signals and sent to an onboard MIDI decoding chip, and finally, dual-channel audio signals are output through a standard audio interface, so that the tone colors of 128 stringed instruments can be realized, and the independent setting control of the volume, the tone colors and the channels can be realized; and meanwhile, the functions of reading music files carried by the SD card, controlling music playing name, volume, pause, continuous playing and the like through software programming processing are supported. The sound source controller can support external input and output, the input can be a digital signal, an analog signal and a protocol bus signal, and the output control can be a digital signal, an analog signal and a protocol bus signal; the on-board multiple capacitive touch electrodes can support external conductors to be externally connected to the electrodes, extend the electrodes to touch, and automatically calibrate touch thresholds and touch sensitivity; when the single chip microcomputer plays audio, a standard MIDI protocol is adopted to transmit the audio to a sound source synthesizer, the sound source is a MIDI chip, the conversion from MIDI data to audio is realized, and the audio is played through an external sound box and an earphone; when MP 3/WAV music is played, the information of the SD card is read by the singlechip, then converted into a control instruction, decoded by the decoding chip, converted into an audio signal, and played through an external sound box and an earphone; the utility model discloses can DIY preparation, complete course has the teaching activity meaning. And the music playing and interaction are convenient.

Claims (5)

1. A programmable sound source synthesis controller supporting acquisition input and control output, comprising: the method comprises the following steps: the capacitive touch interface is electrically connected with an external capacitive control screen and transmits a control signal of the external capacitive control screen to the single chip microcomputer, the single chip microcomputer receiving port receives a sound source input signal and a sensor input signal from the input and output port, and the single chip microcomputer output port is electrically connected with the Midi sound source synthesis decoding two-in-one chip and the Micro SD card slot.

2. The controller of claim 1, wherein the single chip microcomputer is Atmel ATMega32U4, and the single chip microcomputer directly outputs the received capacitive touch signal, digital signal and analog signal to an external actuator, or forms a standard MiDi protocol signal or an MP3 decoding control command, and sends the signal to an onboard MiDi sound source synthesis and decoding two-in-one chip.

3. The controller of claim 1, wherein the MiDi audio source synthesis and decoding two-in-one chip is VLSI VS1053B, and the MiDi audio source synthesis and decoding two-in-one chip outputs a binaural audio signal through a standard audio interface.

4. The controller according to any one of claims 1 to 3, wherein the mode setting switch is electrically connected to the Midi sound source synthesis and decoding two-in-one chip, and controls the Midi sound source synthesis and decoding two-in-one chip to be in the Midi sound source synthesis mode or the MP3 decoding mode.

5. The controller of claim 2, wherein the external actuator is a speaker or a headphone.

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