CN212934141U - Electric piano with karaoke function - Google Patents
Electric piano with karaoke function Download PDFInfo
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- CN212934141U CN212934141U CN202021648725.9U CN202021648725U CN212934141U CN 212934141 U CN212934141 U CN 212934141U CN 202021648725 U CN202021648725 U CN 202021648725U CN 212934141 U CN212934141 U CN 212934141U
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- 230000003321 amplification Effects 0.000 claims abstract description 17
- 238000003199 nucleic acid amplification method Methods 0.000 claims abstract description 17
- 238000000034 method Methods 0.000 claims description 2
- 230000006870 function Effects 0.000 abstract description 14
- 230000005540 biological transmission Effects 0.000 description 7
- 230000000694 effects Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 230000033764 rhythmic process Effects 0.000 description 2
- 230000005236 sound signal Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000007781 pre-processing Methods 0.000 description 1
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Abstract
An electric piano with karaoke function mainly comprises a piano main control board, a processor and a processing module which are arranged on the piano main control board, a piano frame and a pedal arranged at the lower bottom end of the piano frame; the piano comprises a piano main control board and a mobile terminal applet arranged on the piano main control board; the processor comprises a sound source processor and a keyboard pedal processor; through increasing microphone preceding stage processing module, earphone power amplification module, cell-phone audio frequency processing module, bluetooth treater and the mobile terminal applet that sets up on the piano master control board, the cell-phone downloads APP and just can utilize the cell-phone to accomplish the control of piano keyboard to and can accomplish the karaoke function, can accomplish the demonstration of playing simultaneously for the beginner, with singing etc. and can accomplish multiple functions such as the live of the reddish mobile phone of playing at present.
Description
Technical Field
The utility model belongs to the technical field of the fender, concretely relates to be fit for playing simultaneously the karaoke function's of singing K song fender piano of saying.
Background
Along with the popularization of the electric piano, more and more people choose to buy the electric piano to enrich the entertainment life of the user, but all the existing electric pianos are only independent playing devices and cannot be spoken and sung together with the electric piano, so that for music lovers who like playing and sung, the electric piano needs to be additionally provided with an earphone for use, and great inconvenience is brought to the user; if the microphone is integrated into the electric piano, the user can play and sing at any time when needed, and the application is expected by a plurality of users.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a to the not enough of prior art, provide a multiple functional, user uses the fender of very convenient karaoke function.
The utility model is realized in such a way that an electric piano with karaoke function mainly comprises a piano main control board, a processor and a processing module which are arranged on the piano main control board, a piano frame and a pedal which is arranged at the lower bottom end of the piano frame; the method is characterized in that: the piano comprises a piano main control board and a mobile terminal applet arranged on the piano main control board; the processor comprises a sound source processor, a keyboard and a pedal processor, wherein the processor also comprises a Bluetooth processor.
The processing module comprises a USB processing module, an audio decoding module, a sound mixing module, a loudspeaker power amplification module and a line output module, wherein the processing module further comprises a microphone preceding stage processing module, an earphone power amplification module and a mobile phone audio processing module.
The output end of the microphone pre-stage processing module is connected to the Bluetooth processor; and the bluetooth processor is wirelessly connected with the mobile terminal applet.
The Bluetooth processor and the sound source processor are connected with each other, and the output end of the Bluetooth processor is connected to the sound mixing module.
The output ends of the keyboard processor and the pedal processor are connected to the sound source processor, the output end of the sound source processor is connected to the audio decoding module, and the sound source processor is connected with the USB module.
The output end of the audio decoding module is connected to the sound mixing module.
And the output end of the sound mixing module is respectively connected with a line output processing module, a loudspeaker power amplification module, an earphone power amplification module and a mobile phone audio processing module.
The piano frame is characterized in that an external interface panel is fixedly mounted on the back side panel of the piano frame, and a microphone interface, a power line interface, a USB interface, a damper jump board interface, a mobile phone live broadcast interface, an audio output interface and an earphone interface are respectively arranged on the external interface panel.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses an increase the sound source treater, cell-phone audio frequency processing module, bluetooth treater and the mobile terminal applet that set up on the piano master control board after, the control of piano keyboard just can be accomplished to cell-phone download APP can utilize the cell-phone to and can accomplish the karaoke function, can accomplish the demonstration of playing for the beginner simultaneously, with singing etc. and can accomplish multiple functions such as the live of the reddest cell-phone of playing at present.
Drawings
Fig. 1 is a block diagram of a control panel according to the present invention.
Fig. 2 is a schematic view of an integral piano of the present invention.
Fig. 3 is a back schematic view of the middle piano.
Fig. 4 is a schematic view of an external interface panel according to the present invention.
Fig. 5 is a schematic view of a piano keyboard of the present invention.
Fig. 6 is an enlarged schematic view of a portion a in fig. 5.
In the figure: 1. a processor; 2. a processing module; 3. a mobile terminal applet; 4. a keyboard; 5. a piano frame; 6. a pedal; 7. an external interface panel; 8. a master volume control button; 9. and a power switch.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and embodiments; it should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1, an electric piano with karaoke function mainly comprises a piano main control board, a processor 1 and a processing module 2 arranged on the piano main control board, a piano frame 5, and a pedal 6 installed at the lower bottom end of the piano frame 5; the piano comprises a piano main control board, a mobile terminal applet 3, a mobile terminal control board and a mobile terminal control board, wherein the piano main control board is provided with a plurality of piano main control boards; the processor 1 comprises a sound source processor, a keyboard and a pedal processor, wherein the processor also comprises a Bluetooth processor.
The mobile terminal applet 3 is a small software developed based on a WeChat platform, has the characteristic of strong cross-platform compatibility, realizes one-time development, and can be used by multiple systems; the software is implanted into various complex key functions of the electronic piano, such as tone control, rhythm control, song control, keyboard control, recording control, effect control, beat control and the like; the functions are mutually independent, and compared with the traditional electric piano, the electric piano has simple and clear operation and concise appearance; the software is interconnected with the piano by means of a mobile terminal Bluetooth wireless network to exchange data.
The Bluetooth processor has three functions, namely Bluetooth MIDI data transmission, Bluetooth audio transmission and microphone signal processing; the Bluetooth MIDI data is a data structure based on a MIDI protocol, and realizes the wireless data transmission from files based on the MIDI protocol to a sound source device; various terminal devices supporting the midi protocols can interact with the piano through the Bluetooth midi; the Bluetooth audio transmission is also an audio wireless transmission mode, and after the Bluetooth audio is connected, the musical instrument can synchronously send out a melody sound when the mobile terminal plays the audio; the two have the common characteristic that the traditional wired transmission is changed into wireless transmission, thereby solving the trouble caused by the long wire when a user uses the equipment; the microphone signal processing part comprises ADC digital acquisition, DSP reverberation effect algorithm processing, DAC processing and sound mixing processing of Bluetooth audio; after the voice is processed by the microphone, the voice humidity can be closer to the KTV singing effect, and the tone color is more vivid.
The primary role of the sound source processor is to act as a soft wave table capable of restoring sound. The sound source processor converts various timbre data, rhythm data and song data stored in the memory into audio data through a DSP software algorithm, and outputs the audio data to the audio decoding module through a hardware I2S interface to restore real sound. The sound source processor is used for controlling midi information, various complicated midi control information is subjected to synchronous change of finally fed back sound through an internal software algorithm of the sound source processor, and a user can change the sound effect according to own idea, so that the karaoke singing function can be completed by using the sound source processor.
The keyboard pedal processor is used as an important component of man-machine interaction and is mainly used for recognizing keyboard notes and tripods of a user. The processor scans the pressing and lifting of each black and white key and the stepping and releasing of the pedal through software to obtain note information and pedal information, and then the sound is sent by the UART serial port communication sending sound source device.
The processing module comprises a USB processing module, an audio decoding module, a sound mixing module, a loudspeaker power amplification module and a line output module, wherein the processing module further comprises a microphone preceding stage processing module, an earphone power amplification module and a mobile phone audio processing module.
The output end of the microphone pre-stage processing module is connected to the Bluetooth processor; and the bluetooth processor is wirelessly connected with the mobile terminal applet.
The Bluetooth processor and the sound source processor are connected with each other, and the output end of the Bluetooth processor is connected to the sound mixing module.
The output ends of the keyboard processor and the pedal processor are connected to the sound source processor, the output end of the sound source processor is connected to the audio decoding module, and the sound source processor is connected with the USB module.
The output end of the audio decoding module is connected to the sound mixing module.
And the output end of the sound mixing module is respectively connected with a line output processing module, a loudspeaker power amplification module, an earphone power amplification module and a mobile phone audio processing module.
The microphone preceding stage processing module is mainly used for realizing small signal amplification and filtering processing of a microphone and is a preceding stage for processing microphone signals in the Bluetooth processor. After the human voice passes through the microphone pre-processing module, an analog audio frequency with high sensitivity and high signal-to-noise ratio can be provided for the post stage.
The USB processing module is mainly responsible for the communication between the sound source processor and other USB peripheral terminals (such as PC, Phone and the like), and various midi songs edited on the terminals can be transmitted to the sound source processor through the USB for demonstration; or the piano player can transmit the currently played note data to the terminal through the USB, and the player modifies or edits the terminal.
The audio decoding module is mainly used for receiving audio data transmitted by the audio source processor through the I2S, restoring the audio data by the DAC, and then transmitting the audio data to the audio mixing module through filtering processing.
The mixing module is mainly used for synthesizing various audio sounds, such as audio of a sound source processor, Bluetooth audio and the like.
The horn power amplification module provides sufficient power drive for horn sounding after being processed by the filter amplifier.
The earphone power amplification module provides sufficient power drive for earphone sounding after being processed by the filter amplifier.
The line output module provides audio signals for other power amplification external equipment after being processed by the filter amplifier.
The mobile phone audio processing module provides audio signals for mobile phone mic input after being processed by the filter circuit. At the moment, the Bluetooth audio, the microphone audio and the piano audio can be transmitted to the remote terminal equipment by means of mobile phone software, so that an interactive effect is achieved.
As shown in fig. 2-6, an external interface panel 7 is further fixedly mounted on the rear side panel of the piano frame 5, and a microphone interface, a power line interface, a USB interface, a damper board interface, a mobile phone live broadcast interface, an audio output interface and an earphone interface are respectively arranged on the external interface panel 7; the upper end of the piano frame 5 is mounted with a keyboard 4, and the surface of the keyboard 4 is provided with a manual master volume control button 8 and a power switch 9.
The utility model discloses the piano is multiple functional, can satisfy beginner, senior player or be used for karaoke's K song amusement to use completely.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (7)
1. An electric piano with karaoke function mainly comprises a piano main control board, a processor and a processing module which are arranged on the piano main control board, a piano frame and a pedal arranged at the lower bottom end of the piano frame; the method is characterized in that: the piano comprises a piano main control board and a mobile terminal applet arranged on the piano main control board; the processor comprises a sound source processor, a keyboard and a pedal processor, wherein the processor also comprises a Bluetooth processor;
the processing module comprises a USB processing module, an audio decoding module, a sound mixing module, a loudspeaker power amplification module and a line output module, wherein the processing module further comprises a microphone preceding stage processing module, an earphone power amplification module and a mobile phone audio processing module.
2. An electric piano with karaoke function according to claim 1, wherein: the output end of the microphone pre-stage processing module is connected to the Bluetooth processor; and the bluetooth processor is wirelessly connected with the mobile terminal applet.
3. An electric piano with karaoke function according to claim 1, wherein: the Bluetooth processor and the sound source processor are connected with each other, and the output end of the Bluetooth processor is connected with the sound mixing module.
4. An electric piano with karaoke function according to claim 1, wherein: the output ends of the keyboard processor and the pedal processor are connected to the sound source processor, the output end of the sound source processor is connected to the audio decoding module, and the sound source processor is connected with the USB module.
5. An electric piano with karaoke function according to claim 1, wherein: the output end of the audio decoding module is connected to the sound mixing module.
6. An electric piano with karaoke function according to claim 1, wherein: the output end of the sound mixing module is respectively connected with a line output processing module, a loudspeaker power amplification module, an earphone power amplification module and a mobile phone audio processing module.
7. An electric piano with karaoke function according to claim 1, wherein: the piano frame is characterized in that an external interface panel is fixedly mounted on the rear side panel of the piano frame, and a microphone interface, a power line interface, a USB interface, a damper jump board interface, a mobile phone live broadcast interface, an audio output interface and an earphone interface are respectively arranged on the external interface panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021648725.9U CN212934141U (en) | 2020-08-10 | 2020-08-10 | Electric piano with karaoke function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021648725.9U CN212934141U (en) | 2020-08-10 | 2020-08-10 | Electric piano with karaoke function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212934141U true CN212934141U (en) | 2021-04-09 |
Family
ID=75335405
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021648725.9U Expired - Fee Related CN212934141U (en) | 2020-08-10 | 2020-08-10 | Electric piano with karaoke function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212934141U (en) |
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2020
- 2020-08-10 CN CN202021648725.9U patent/CN212934141U/en not_active Expired - Fee Related
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210409 |