CN210606599U

CN210606599U - Acoustic musical instrument sound effect enhancing device

Info

Publication number: CN210606599U
Application number: CN201920900794.5U
Authority: CN
Inventors: 莫双林
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-06-14
Filing date: 2019-06-14
Publication date: 2020-05-22
Anticipated expiration: 2029-06-14

Abstract

The utility model provides an acoustic musical instrument audio reinforcing means, include: the input end of the preceding stage gain adjusting circuit is provided with a signal input interface connected with the output interface of the original pickup of the musical instrument through a data connecting line; the output end of the preceding gain adjusting circuit is connected with the input end of the ADC analog-to-digital conversion circuit; the output end of the ADC analog-to-digital conversion circuit is connected with the signal input end of the main control unit; the external key and the adjusting knob are arranged on the surface of the device and are connected with a first control end of the main control unit; the sound mixing meter unit is arranged on the surface of the device and is connected with the second control end of the main control unit; the input end of the DAC digital-to-analog conversion circuit is connected with the first signal output end of the main control unit; the first output end of the DAC digital-to-analog conversion circuit is connected with the signal input end of the power amplification unit; the signal output end of the power amplification unit is connected with the signal input end of the resonant loudspeaker; the utility model discloses need not abandon the adapter of taking on the musical instrument, realize richer performance effect under the condition that does not connect the audio amplifier to reduce user's purchase cost.

Description

Acoustic musical instrument sound effect enhancing device

Technical Field

The utility model relates to a musical instrument pickup technical field especially relates to an acoustic musical instrument audio reinforcing means.

Background

Along with the improvement of living standard of people, more and more people learn and play musical instruments, in order to improve the volume of the acoustic musical instrument and enrich the tone quality of the acoustic musical instrument in the process of practice and performance, many people can select the acoustic musical instrument to be connected with an effector and a sound box through a sound pick-up for use. However, in the case of non-stage performance at ordinary times, due to the convenience of the effector and the sound box and the limitation of the use environment, many people are inconvenient to connect the sound box during practice and playing. In order to solve the current troubles, vibration pickup devices which can enhance the sound effect of the acoustic musical instrument without connecting the effect device and the sound box appear in the market. The working principle of the vibration-adding pickup is that the original sound instrument sound is picked up through the pickup unit, the picked audio signal is processed by the DSP chip, so that various pleasant sound effects are increased, the instrument is excited by the resonance loudspeaker mounted on the instrument to generate vibration and sound, and the sound effect processed by the DSP is played.

Since vibration pickup is a new product in recent years, many musical instruments are equipped with only conventional pickup. And after a long time of development, some high-quality conventional sound pick-up devices can provide excellent original sound color, so that they are still widely favored by musicians and ordinary users. The existing vibration pickup on the market belongs to a product containing a pickup unit, and the existing traditional pickup on the musical instrument is abandoned by selecting the existing vibration pickup on the market. Because the sound pick-up that adds shakes is used in practice at ordinary times and use when playing everyday more, and the sound pick-up effect that adds shakes on the current market can not satisfy some high-end demands moreover, for example can need to pick up high-quality primary sound tone when large-scale performance and high-quality recording to it is used for collocating more professional sound effect processing apparatus to be used for. Some high quality conventional microphones also hold a large market share and have a definite irreplaceability. Because many users still have the rigid use requirement of the high-quality traditional sound pick-up, the vibration pick-up which is very convenient and practical in usual practice and playing has to be abandoned.

SUMMERY OF THE UTILITY MODEL

The utility model provides an acoustic musical instrument audio reinforcing means, with solve at present in the use with the adapter that shakes must abandon the traditional adapter's of taking on the original musical instrument technical problem, thereby establish an acoustic musical instrument audio reinforcing means who does not contain the pickup unit, through taking audio signal from the original adapter of musical instrument, the original high-quality adapter of make full use of musical instrument, on need not abandon the basis of the traditional adapter of taking on the original musical instrument, realize richer performance under the condition of not connecting the audio amplifier, and more be absorbed in the audio quality promotion, and reduce user's purchase cost.

In order to solve the technical problem, the embodiment of the utility model provides an acoustic musical instrument audio reinforcing means, include: the main board, the resonance loudspeaker and the power supply; the main board is provided with a preceding-stage gain adjusting circuit, an ADC (analog-to-digital converter) circuit, a main control unit, a tone tuning meter unit, a DAC (digital-to-analog converter) circuit, a power amplifier unit, an external key and an adjusting knob;

the input end of the preceding stage gain adjusting circuit is provided with a signal input interface connected with the output interface of the original pickup of the musical instrument through a data connecting line; the output end of the preceding-stage gain adjusting circuit is connected with the input end of the ADC analog-to-digital conversion circuit; the output end of the ADC analog-to-digital conversion circuit is connected with the signal input end of the main control unit; the external key and the adjusting knob are connected with a first control end of the main control unit; the sound mixing meter unit is connected with a second control end of the main control unit; the input end of the DAC digital-to-analog conversion circuit is connected with the first signal output end of the main control unit; the first output end of the DAC digital-to-analog conversion circuit is connected with the signal input end of the power amplification unit; the signal output end of the power amplification unit is connected with the signal input end of the resonance loudspeaker; the power supply is electrically connected with the main board and the resonance loudspeaker respectively.

Preferably, the main board further includes a gain adjustment knob, and the gain adjustment knob is connected to the control end of the preceding stage gain adjustment circuit.

As a preferred scheme, the display device further comprises a display unit, and an input end of the display unit is connected with the second signal output end of the main control unit.

Preferably, the display unit is any one of an OLED display screen, an LCD display screen, a segment screen, a dot matrix screen, a nixie tube or an LED lamp.

As a preferred scheme, the motherboard further includes a USB interface, and the USB interface is connected to the third signal output end of the main control unit through a data line.

As a preferred scheme, the motherboard further comprises a bluetooth module, and the bluetooth module is connected with the communication end of the main control unit.

Preferably, the main board further includes a linear output interface, and the linear output interface is connected to the second output end of the DAC digital-to-analog conversion circuit through a data line.

As a preferred scheme, the motherboard further comprises a power management circuit, a power input end of the power management circuit is connected with the power supply, and a power output end of the power management circuit is electrically connected with the preceding stage gain adjustment circuit, the ADC analog-to-digital conversion circuit, the main control unit, the DAC digital-to-analog conversion circuit, the power amplification unit, and the resonant speaker respectively.

Preferably, the loudspeaker further comprises a shell, the shell comprises a face shell and a bottom shell, the display unit is arranged on the face shell, the resonance loudspeaker is embedded on the bottom shell, and a double-faced adhesive structure is further arranged on the bottom shell.

Preferably, the power source is a rechargeable lithium battery.

Compared with the prior art, the embodiment of the utility model provides a have following beneficial effect:

the utility model discloses a take audio signal from the original adapter of musical instrument, the original high-quality adapter of make full use of musical instrument, solve and must abandon the technical problem of the traditional adapter of taking on the original musical instrument in using the adapter that shakes at present, thereby establish an original sound musical instrument audio reinforcing means that does not contain the pickup unit, need not abandon on the basis of the traditional adapter of taking on the original musical instrument, realize better pickup effect, and more be absorbed in the promotion of audio quality, and reduce user's purchase cost.

Drawings

FIG. 1: the sound effect enhancing device of the acoustic musical instrument in the embodiment of the utility model is arranged on the musical instrument;

FIG. 2: is a schematic diagram of the working structure principle of the main board in the embodiment of the utility model;

FIG. 3: is a structural schematic diagram of an acoustic musical instrument sound effect enhancing device of a mainboard in the embodiment of the utility model;

FIG. 4: is a schematic diagram of a mainboard structure in the embodiment of the utility model;

FIG. 5: do the embodiment of the present invention provides a motherboard circuit connection diagram.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1 to 5, a preferred embodiment of the present invention provides an acoustic musical instrument sound effect enhancing apparatus, including: the main board, the resonance loudspeaker and the power supply; the main board is provided with a preceding-stage gain adjusting circuit, an ADC (analog-to-digital converter) circuit, a main control unit, a tone tuning meter unit, a DAC (digital-to-analog converter) circuit, a power amplifier unit, an external key and an adjusting knob;

The output interface of the original pickup of the musical instrument is connected to the signal input interface of the device through a connecting wire, and the preceding stage gain adjusting circuit reasonably amplifies or attenuates the signal level according to the level amplitude of the input signal; the ADC analog-to-digital conversion circuit performs analog-to-digital conversion on the signal output by the preceding-stage gain adjustment circuit, and converts an analog audio signal into a digital signal for further processing; after the signals enter the main control unit, the signals are increased or reduced through external keys and adjusting knobs so as to increase or decrease sound effects, and the size of the intonation of the musical instrument is adjusted through buttons of the tone tuning table unit; the DAC digital-to-analog conversion unit converts the digital signals processed by the DSP into analog signals, the power amplification unit amplifies the power of the analog signals output by the DAC, the resonance loudspeaker is positioned at the bottom of the device, and the signals amplified by the power amplification unit push the resonance loudspeaker to excite the musical instrument to vibrate so as to emit sound processed by sound effect. In this embodiment, the power source is a rechargeable lithium battery.

In this embodiment, the main board further includes a gain adjustment knob, and the gain adjustment knob is connected to the control end of the preceding stage gain adjustment circuit.

The proper signal level can be obtained by the gain adjusting knob, and the signal distortion caused by too low input level and too high input level can be avoided.

In this embodiment, the display device further includes a display unit, and an input end of the display unit is connected to the second signal output end of the main control unit.

Besides the intonation information of the tuning table, the display unit can also display sound effect parameters, external adjusting knob state display, Bluetooth and USB connection states, electric quantity display and the like. In this embodiment, the display unit is any one of an OLED display screen, an LCD display screen, a segment screen, a dot matrix screen, a digital tube, or an LED lamp.

In this embodiment, the apparatus further includes a USB interface, and the USB interface is connected to the third signal output end of the main control unit through a data line.

The USB interface is used for connecting a computer to download user-defined tone and is used as a charging interface.

In this embodiment, the motherboard further includes a bluetooth module, and the bluetooth module is connected to the communication end of the main control unit.

The Bluetooth module is connected with a mobile phone or other mobile equipment for data transmission, can be used for APP downloading of user-defined timbre, and can also be used for transmitting accompaniment, a drum machine and music signals.

In this embodiment, the main board further includes a linear output interface, and the linear output interface is connected to the second output end of the DAC digital-to-analog conversion circuit through a data line.

And the linear output interface outputs the module signal output by the DAC and is used for connecting a sound box or other sound amplification equipment.

In this embodiment, the mainboard further includes a power management circuit, the power input end of the power management circuit is connected with the power supply, the power output end of the power management circuit is respectively connected with the preceding stage gain adjustment circuit, the ADC analog-to-digital conversion circuit, the main control unit, the DAC digital-to-analog conversion circuit, the power amplification unit and the resonance speaker. The power management circuit is used for managing charging and discharging of the battery and controlling power supply of the whole machine.

In this embodiment, still include the shell, the shell includes face-piece and drain pan, the display element sets up on the face-piece, the resonance speaker is inlayed on the drain pan, still be provided with two-sided glue structure on the drain pan.

The double-sided adhesive tape is arranged on the bottom shell, and the sound effect enhancing device only needs to be pasted on a proper position on the surface of an original acoustic musical instrument during installation and then connected to an output interface of the musical instrument with an original sound pick-up by a connecting wire.

The utility model has the advantages of it is following:

1. the external mounting characteristic, the user only needs to paste the audio reinforcing means on the musical instrument surface, inserts the connecting wire again and can accomplish the installation, need not destroy the original structure of musical instrument.

2. The original self-contained sound pickup of the musical instrument is fully utilized, and high-quality timbre is guaranteed. And can be simply and conveniently disassembled when the sound effect enhancing function is not needed.

3. The high-frequency-gain-adjustable microphone has good input signal level and impedance adaptability, and is provided with a gain adjusting knob, so that the microphone is convenient to be used for connecting different types of musical instruments.

4. Make things convenient for a plurality of musical instruments to share, when the user has a plurality of musical instruments, can install on the musical instrument that needs play at present swiftly, avoid repeatedly purchasing a plurality of audio reinforcing means.

5. The user-defined audio effect download function, ordinary adapter tone color effect that shakes with is all fixed, and this novel audio enhancement device accessible USB connects the computer, or bluetooth connection cell-phone and other mobile devices come the different user-defined effect kinds of loading, realize independent assortment and abundant parameter adjustment.

6. The bluetooth audio transmission function, cell-phone or other equipment are connected to the accessible bluetooth, play accompaniment, drum machine audio effect etc. when playing the musical instrument, the musical instrument can regard as high-quality bluetooth speaker to use when not playing even.

7. The built-in DSP chip with high arithmetic processing capability can provide abundant sound effect types and sound effect processing capability with high quality, and can be used as an independent effector when the sound effect enhancement function is not used.

The above-mentioned embodiments further describe the objects, technical solutions and advantages of the present invention in detail, it should be understood that the above-mentioned embodiments are only examples of the present invention, and are not intended to limit the scope of the present invention. It should be understood that any modification, equivalent replacement, or improvement made by those skilled in the art without departing from the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An acoustic musical instrument sound effect enhancement apparatus, comprising: the main board, the resonance loudspeaker and the power supply; the main board is provided with a preceding-stage gain adjusting circuit, an ADC (analog-to-digital converter) circuit, a main control unit, a tone tuning meter unit, a DAC (digital-to-analog converter) circuit, a power amplifier unit, an external key and an adjusting knob;

2. The acoustic musical instrument sound effect enhancement apparatus of claim 1 wherein the main board further comprises a gain adjustment knob, the gain adjustment knob being connected to the control terminal of the pre-stage gain adjustment circuit.

3. The acoustic musical instrument sound effect enhancement apparatus of claim 1 further comprising a display unit, an input of the display unit being connected to the second signal output of the main control unit.

4. The acoustic musical instrument sound effect enhancement apparatus of claim 3, wherein the display unit is any one of an OLED display screen, an LCD display screen, a segment screen, a dot matrix screen, a digital tube or an LED lamp.

5. The acoustic musical instrument sound effect enhancement apparatus of claim 1 wherein the main board further comprises a USB interface, the USB interface being connected to the third signal output terminal of the main control unit via a data line.

6. The acoustic musical instrument sound effect enhancement device of claim 1, wherein the main board further comprises a bluetooth module, and the bluetooth module is connected with the communication end of the main control unit.

7. The acoustic musical instrument sound effect enhancement apparatus of claim 1, wherein the main board further comprises a linear output interface, and the linear output interface is connected to the second output terminal of the DAC circuit through a data line.

8. The acoustic musical instrument sound effect enhancement apparatus of claim 1, wherein the main board further comprises a power management circuit, a power input terminal of the power management circuit is connected to the power supply, and a power output terminal of the power management circuit is electrically connected to the pre-stage gain adjustment circuit, the ADC analog-to-digital conversion circuit, the main control unit, the DAC digital-to-analog conversion circuit, the power amplifier unit, and the resonant speaker, respectively.

9. The acoustic musical instrument sound effect enhancement device of claim 3 further comprising a housing comprising a face and a bottom shell, the display unit being disposed on the face, the resonant speaker being embedded on the bottom shell, the bottom shell further having a double-sided adhesive structure disposed thereon.

10. The acoustic musical instrument sound effect enhancement apparatus of claim 1 wherein the power source is a rechargeable lithium battery.