Audio-visual perception collaborative multi-color and sound electronic drum set

Abstract

This invention discloses a multi-color harmonic electronic drum kit. Each drum in the kit uses a different color, corresponding to the pitch of the drum sound. The light wave frequency and sound wave frequency change trends are consistent to enhance the subjective perception and recognition of pitch. For example, the drum kit can consist of 7 independent drum bodies, each emitting 7 natural scale notes (1, 2, 3, 4, 5, 6, 7), each using one of the 7 colors of the rainbow (red, orange, yellow, green, cyan, blue, and purple). The drumhead is made of a combination of leather surface and stainless steel backing. A counterweight is installed under the drumhead to absorb the vibration energy generated when the drumhead is struck, thus eliminating impact noise. A control panel is located on the side of the drum to adjust the timbre, volume, and pitch. A data acquisition module collects the drum impact force, transmits it to the control module to synthesize the drum sound, and achieves directional sound emission through a directional sound transmission module, enabling practice without disturbing neighbors. This invention provides intuitive pitch differentiation, is non-disturbing, and is suitable for home practice, music teaching, and small performances.

Description

Technical Field

[0001] This invention relates to the field of electronic musical instrument technology, specifically to a multi-color harmonic electronic drum kit that integrates audiovisual perception. Background Technology

[0002] Electronic drum kits, as an electronic derivative of traditional drum kits, are widely used in home practice, music teaching, and small performances due to their advantages such as small size, rich sound, and high adjustability. However, existing electronic drum kits still have many technical shortcomings in practical applications, making it difficult to simultaneously meet the needs of beginners, the limitations of usage scenarios, and the sound quality experience. Specific drawbacks are as follows: 1. Pitch differentiation is not intuitive, and the entry threshold is high: Traditional electronic drums mostly differentiate pitch by drum size and label stickers. Pitch information relies solely on auditory judgment. Beginners lack a concrete understanding of the pitch corresponding to the sound wave frequency, making it difficult to quickly establish the correspondence between pitch and drum body. This can easily lead to problems such as hitting the wrong drum body or inaccurate pitch, which seriously affects the fluency of playing and learning efficiency.

[0003] 2. Strong sound diffusion, limiting usage scenarios: Most existing electronic drums adopt an omnidirectional sound generation structure, which easily diffuses sound waves into the surrounding environment even when the volume is turned down. When used in noise-sensitive places such as homes, apartments, and near libraries, it can easily disturb the normal life and study of others, making it impossible for users to practice at any time, which greatly limits the applicable scenarios of the product.

[0004] 3. Noticeable knocking noise and poor sound quality: Traditional electronic drums are mostly made of a single material, which can easily produce knocking noise such as drumhead vibration reflection and drum body resonance when struck. In addition, interference waves are easily mixed in when the sensor captures the signal, resulting in a muddy and unclear output drum sound, which not only affects the performer's auditory feedback, but also reduces the overall performance effect.

[0005] 4. Insufficient volume control flexibility and poor adaptability: Some electronic drums only support fixed levels of volume and pitch adjustment, and cannot achieve dynamic volume changes based on the force of the strike. Moreover, the adjustment operations are mostly integrated into the external control panel, making it inconvenient to switch during performance and difficult to meet the personalized performance needs of different musical styles and different scenarios.

[0006] Therefore, there is an urgent need to design an electronic drum kit that combines pitch visualization, noise cancellation, directional sound generation, and flexible sound control. Through structural innovation and technological integration, the aforementioned shortcomings of existing technologies can be addressed, thereby improving the product's practicality, ease of use, and market competitiveness. Summary of the Invention

[0007] The purpose of this invention is to overcome the shortcomings of existing electronic drum technology and provide a multi-color harmonic electronic drum kit with audiovisual perception collaboration, achieving the following objectives: 1. Establishing a one-to-one correspondence between pitch and color, reducing the difficulty of pitch recognition through audiovisual collaboration, and adapting to beginners and teaching scenarios; 2. Optimizing the drumhead structure and vibration absorption design to eliminate striking noise at the source and improve the clarity of the drum sound; 3. Integrating a directional sound generation system and a dynamic sound control module to achieve controllable sound range and flexible adjustment of volume and tone, avoiding disturbance to others; 4. Balancing feel, durability, and safety, adapting to the needs of various scenarios such as home, teaching, and performance.

[0008] To achieve the above-mentioned objectives, the present invention adopts the following technical solution: a multi-color harmonic electronic drum kit with audiovisual perception synergy, comprising 7 independent drum bodies arranged in a matrix or arc shape to adapt to ergonomic striking postures; each drum body corresponds to a natural scale note (1, 2, 3, 4, 5, 6, 7), and uses 7 independent color schemes of the rainbow to establish a fixed correspondence between pitch and color—red corresponds to note 1 (sound wave frequency approximately 261.6Hz), orange corresponds to note 2 (sound wave frequency approximately 293.7Hz), yellow corresponds to note 3 (sound wave frequency approximately 329.6Hz), green corresponds to note 4 (sound wave frequency approximately 349.2Hz), cyan corresponds to note 5 (sound wave frequency approximately 392.0Hz), blue corresponds to note 6 (sound wave frequency approximately 440.0Hz), and purple corresponds to note 7 (sound wave frequency approximately 493.9Hz).

[0009] Each drum consists of two main parts: a mechanical part and an electronic part.

[0010] The mechanical components of the drum body include the drumhead, drum cavity, counterweight mechanism, and fixed base. The drumhead employs a three-layer composite structure: a leather surface, an elastic buffer layer, and a stainless steel base. The leather surface ensures striking resilience and a realistic feel; the elastic buffer layer absorbs some of the impact force, reducing vibration transmission; and the stainless steel base enhances the flatness and durability of the drumhead, preventing deformation from long-term impact. The drum cavity is made of ABS engineering plastic, with sound-absorbing cotton pasted on the inner wall to further absorb residual vibrations. The drum body surface is treated with a wear-resistant and scratch-resistant coating, and the color is achieved using a high-temperature baking paint process, ensuring long-lasting color that meets environmental standards. The counterweight mechanism is installed at the center below the drumhead and includes a high-density metal counterweight column and a bottom buffer pad. The counterweight column is bolted to the stainless steel base of the drumhead, quickly absorbing the vibration energy of the drumhead during impact, suppressing vibration reflection and drum cavity resonance, and eliminating noise. The buffer pad is made of rubber to prevent the counterweight column from making hard contact with the bottom of the drum cavity, thus avoiding secondary noise. The base is made of non-slip rubber with textured bottom to enhance stability and prevent the drum from shifting when struck. The base also has adjustable feet to finely adjust the drum height to suit players of different heights.

[0011] The electronic components of the drum body include a control panel, a sound acquisition module, a sound source module, a directional sound transmission module, a power supply module, and a control module. The sound source module, power supply module, and control module are integrated on the same circuit board.

[0012] The control panel includes a power switch, volume control button, tone selection button, timbre selection button, and LED indicator. The tone selection button controls the drum's pitch, and the timbre selection button controls the tone when the drum is struck.

[0013] The acquisition module includes several piezoelectric sensors installed below the drumhead near the edge, closely fitting the elastic buffer layer of the drumhead. The sensor outputs are connected to the control module via shielded wires to avoid signal interference. When struck, the sensors generate electrical signals with corresponding charge based on the pressure applied. The intensity of the electrical signal is linearly proportional to the striking force. The control module converts the electrical signals into volume control commands using a preset algorithm, driving the synthesizer to output dynamic volume, achieving a simulated performance effect of "light taps produce low volume, heavy taps produce high volume".

[0014] The sound source module is responsible for storing various selectable sounds, such as: traditional drum sounds, electronic drum sounds, and special effects drum sounds.

[0015] The directional sound transmission module is integrated inside the lower part of each drum body, including an ultrasonic transducer and a sound-generating unit, to achieve directional propagation of drum sound. The ultrasonic transducer is a high-frequency ultrasonic transducer with adjustable transmission power, used to transmit the modulated drum sound signal in the form of ultrasonic waves. The transducer is fixed to the inner wall of the drum cavity by a vibration-damping bracket to reduce interference from drum body vibration on the transducer's operation. The sound-generating unit uses a full-range loudspeaker, working in conjunction with the ultrasonic transducer. During propagation, the ultrasonic waves self-demodulate due to the nonlinear effect of air, forming audible sound, and creating a clear sound field only along the ultrasonic propagation path, achieving directional sound generation. The sound field propagation angle is adjustable to meet the auditory coverage requirements of different scenarios.

[0016] The control module is connected to the sound source module, the directional sound transmission module, the acquisition module, and the control panel, respectively, and controls the coordinated operation of each module. Based on the operation instructions from the control panel and the tapping information acquired by the acquisition module, the control module extracts the corresponding timbre from the sound source module and controls the directional sound transmission module to emit the corresponding timbre.

[0017] The power module provides a stable power supply to all components.

[0018] This invention also provides a method for operating a multi-color harmonic electronic drum kit with audiovisual perception coordination, applied to the aforementioned multi-color harmonic electronic drum kit with audiovisual perception coordination, comprising the following steps: Step 1: The performer quickly locates the corresponding pitch based on the color of the drum (e.g., red corresponds to note 1) and strikes the drumhead.

[0019] Step 2: The vibration generated by the strike is initially absorbed by the elastic buffer layer of the drum surface, and the sound-absorbing cotton absorbs the residual noise in the drum cavity, ensuring that the signal captured by the acquisition module is pure. The acquisition module captures the striking force and converts it into an electrical signal, which is then transmitted to the control module.

[0020] Step 3: The control module filters and amplifies the signal, extracts the corresponding timbre from the sound source module according to the selected volume, timbre, and pitch, synthesizes the audio, and finally plays the audio through the directional sound transmission module.

[0021] Compared with the prior art, the present invention has the following advantages: 1. Audiovisual Synergy for Efficient Pitch Recognition: By establishing a fixed correspondence between pitch and rainbow colors, combined with synchronized LED indicator lights, abstract sound wave frequencies are transformed into intuitive visual signals. Beginners can quickly establish a correspondence between pitch and drum body, significantly reducing the difficulty of getting started and improving performance accuracy and learning efficiency, making it particularly suitable for music teaching scenarios.

[0022] 2. Significant noise reduction effect: It adopts a triple noise reduction structure of three-layer composite drumhead, high-density counterweight column and sound-absorbing cotton, which suppresses noise from three dimensions: the source of impact vibration, the vibration transmission process and residual noise absorption. Combined with the precise signal capture of piezoelectric sensor, the output drum sound is clear and pure, improving the listening experience and performance quality.

[0023] 3. Controllable sound generation and wide adaptability to various scenarios: The ultrasonic directional sound transmission system can confine the drum sound to a specific propagation range, effectively avoiding noise diffusion and solving the problem of disturbing neighbors in home practice and quiet teaching scenarios; dual power supply modes, adjustable angle sound generation mechanism and flexible sound control function are suitable for various scenarios such as home, training institutions, small performances, and outdoor performances, thus broadening the product's application scope.

[0024] 4. Feature-rich and highly customizable: Features such as multiple preset tones and dynamic volume adjustment meet the personalized needs of different musical styles and performers. Attached Figure Description

[0025] Figure 1 : A schematic diagram of the overall structure of the electronic drum assembly of this invention; Figure 2 : A schematic diagram of the structure of a single drum body; Figure 3 : Control module connection diagram; Figure 4 : Workflow diagram of electronic drum kit; In the diagram: 11-Red drum body, 12-Orange drum body, 13-Yellow drum body, 14-Green drum body, 15-Cyan drum body, 16-Blue drum body, 17-Purple drum body, 21-Drumhead, 22-Drum cavity, 23-Counterweight mechanism, 24-Fixed base, 25-Acquisition module, 26-Control panel, 27-Circuit board integrating sound source module, power supply module, and control module, 28-Directional sound transmission module. Detailed Implementation

[0026] To achieve the above objectives, the present invention is implemented through the following technical solution: like Figure 1 As shown, a multi-color harmonic electronic drum kit with audiovisual perception synergy includes seven independent drum bodies arranged in an arc shape to accommodate ergonomic striking postures. Each drum body corresponds to a natural scale note (1, 2, 3, 4, 5, 6, 7) and is independently colored using seven rainbow color schemes: red drum body 11, orange drum body 12, yellow drum body 13, green drum body 14, cyan drum body 15, blue drum body 16, and purple drum body 17. A fixed correspondence between pitch and color is established: red corresponds to note 1 (sound wave frequency approximately 261.6 Hz), orange corresponds to note 2 (sound wave frequency approximately 293.7 Hz), yellow corresponds to note 3 (sound wave frequency approximately 329.6 Hz), green corresponds to note 4 (sound wave frequency approximately 349.2 Hz), cyan corresponds to note 5 (sound wave frequency approximately 392.0 Hz), blue corresponds to note 6 (sound wave frequency approximately 440.0 Hz), and purple corresponds to note 7 (sound wave frequency approximately 493.9 Hz).

[0027] Each drum consists of two main parts: a mechanical part and an electronic part. For example... Figure 2 As shown, the mechanical parts of the drum body include a drumhead 21, a drum cavity 22, a counterweight mechanism 23, and a fixed base 24; the electronic parts of the drum body include a control panel 26, a data acquisition module 25, a directional sound transmission module 28, a sound source module, a power supply module, and a control module. The sound source module, power supply module, and control module are integrated on the same circuit board 27.

[0028] The drumhead employs a three-layer composite structure: a leather surface, an elastic buffer layer, and a stainless steel substrate. The leather surface ensures striking resilience and a realistic feel; the elastic buffer layer absorbs some of the impact force, reducing vibration transmission; and the stainless steel substrate enhances the flatness and durability of the drumhead, preventing deformation from prolonged use. The drum cavity is made of ABS engineering plastic, with sound-absorbing cotton pasted into the inner wall to further absorb residual vibrations. The drum surface is treated with a wear-resistant and scratch-resistant coating, and the color is achieved using a high-temperature baking paint process, ensuring long-lasting color that meets environmental standards. The counterweight mechanism is installed at the center below the drumhead, comprising a high-density metal counterweight column and a bottom buffer pad. The counterweight column is bolted to the stainless steel substrate of the drumhead, allowing for rapid absorption of drumhead vibration energy during striking, suppressing vibration reflection and drum cavity resonance, and eliminating noise. The buffer pad is made of rubber to prevent the counterweight column from making hard contact with the bottom of the drum cavity, thus avoiding secondary noise. The base is made of non-slip rubber with textured bottom to enhance stability and prevent the drum from shifting when struck. The base also has adjustable feet to finely adjust the drum height to suit players of different heights.

[0029] The control panel includes a power switch, volume control button, tone selection button, timbre selection button, and LED indicator. The tone selection button controls the drum's pitch, and the timbre selection button controls the tone when the drum is struck.

[0030] The acquisition module includes several piezoelectric sensors installed below the drumhead near the edge, closely fitting the elastic buffer layer of the drumhead. The sensor outputs are connected to the control module via shielded wires to avoid signal interference. When struck, the sensors generate electrical signals with corresponding charge based on the pressure applied. The intensity of the electrical signal is linearly proportional to the striking force. The control module converts the electrical signals into volume control commands using a preset algorithm, driving the synthesizer to output dynamic volume, achieving a simulated performance effect of "light taps produce low volume, heavy taps produce high volume".

[0031] The sound source module is responsible for storing various selectable sounds, such as: traditional drum sounds, electronic drum sounds, and special effects drum sounds.

[0032] The directional sound transmission module is integrated inside the lower part of each drum body, including an ultrasonic transducer and a sound-generating unit, to achieve directional propagation of drum sound. The ultrasonic transducer is a high-frequency ultrasonic transducer with adjustable transmission power, used to transmit the modulated drum sound signal in the form of ultrasonic waves. The transducer is fixed to the inner wall of the drum cavity by a vibration-damping bracket to reduce interference from drum body vibration on the transducer's operation. The sound-generating unit uses a full-range loudspeaker, working in conjunction with the ultrasonic transducer. During propagation, the ultrasonic waves self-demodulate due to the nonlinear effect of air, forming audible sound, and creating a clear sound field only along the ultrasonic propagation path, achieving directional sound generation. The sound field propagation angle is adjustable to meet the auditory coverage requirements of different scenarios.

[0033] The power module provides a stable power supply to all components.

[0034] like Figure 3 As shown, the control module is connected to the control panel, the directional sound transmission module, the acquisition module, and the sound source module, respectively, controlling the coordinated operation of each module. Based on the operation commands from the control panel and the tapping information acquired by the acquisition module, the control module extracts the corresponding timbre from the sound source module and controls the directional sound transmission module to emit the corresponding timbre.

[0035] like Figure 4 As shown, the workflow of a multi-color harmonic electronic drum kit with audiovisual perception coordination includes the following steps: Step 1: The performer quickly locates the corresponding pitch based on the color of the drum (e.g., red corresponds to note 1) and strikes the drumhead.

[0036] Step 2: The vibration generated by the strike is initially absorbed by the elastic buffer layer of the drum surface, and the sound-absorbing cotton absorbs the residual noise in the drum cavity, ensuring that the signal captured by the acquisition module is pure. The acquisition module captures the striking force and converts it into an electrical signal, which is then transmitted to the control module.

[0037] Step 3: The control module filters and amplifies the signal, extracts the corresponding timbre from the sound source module according to the selected volume, timbre, and pitch, synthesizes the audio, and finally plays the audio through the directional sound transmission module.

Claims

1. A multi-color harmonic electronic drum kit with audiovisual perception coordination, characterized in that, It includes 7 independent drum bodies; each of the 7 independent drum bodies corresponds to 7 natural scale notes, and uses 7 different rainbow color schemes to establish a fixed correspondence between pitch and color, thereby achieving coordinated audiovisual perception.

2. The electronic drum unit according to claim 1, characterized in that, The drum body includes a drumhead, a drum cavity, a counterweight mechanism, a fixed base, a control panel, a data acquisition module, a sound source module, a directional sound transmission module, a power supply module, and a control module. The drumhead is composed of a leather surface, an elastic cushioning layer, and a stainless steel substrate. The inner wall of the drum cavity is lined with sound-absorbing cotton to eliminate knocking noise; The counterweight mechanism is a combination of a high-density metal counterweight column and a rubber buffer pad. The fixed base is made of non-slip rubber material and the height of the drum body can be finely adjusted to suit the needs of players of different heights. The control panel includes a power switch, volume adjustment buttons, tone selection buttons, timbre selection buttons, and LED indicator lights; The tone selection button controls the drum's tone, while the timbre selection button controls the timbre when striking the drum. The acquisition module includes several piezoelectric sensors, which are installed below the drumhead near the edge to acquire the impact force. The sound source module is responsible for storing various selectable sounds, such as: traditional drum sounds, electronic drum sounds, and special effects drum sounds; The directional sound transmission module is integrated inside the lower part of each drum body, including an ultrasonic transducer and a sound generating unit, to realize the directional propagation of drum sound; The power module provides a stable power supply to all components; The control module is connected to the sound source module, directional sound transmission module, power supply module, and control panel, respectively, and controls the coordinated operation of each module. Based on the operation instructions from the control panel and the tapping information collected by the acquisition module, the control module extracts the corresponding timbre from the sound source module and controls the directional sound transmission module to emit the corresponding timbre.

3. The electronic drum unit according to claim 1, characterized in that, The acquisition module is tightly fitted to the elastic buffer layer of the drumhead, and the sensor output is connected to the control module through a shielded wire to avoid signal interference. When struck, the sensor generates an electrical signal with a corresponding amount of charge according to the pressure. The intensity of the electrical signal is linearly proportional to the striking force. The control module converts the electrical signal into a volume control command through a preset algorithm, driving the synthesizer to output dynamic volume, thereby achieving a simulated performance effect of "light tapping results in low volume, heavy tapping results in high volume".

4. The electronic drum assembly according to claim 1, characterized in that, The ultrasonic transducer of the directional sound transmission module is a high-frequency ultrasonic transducer with adjustable transmission power, used to transmit the modulated drum sound signal in the form of ultrasonic waves. The transducer is fixed to the inner wall of the drum cavity by a shock-absorbing bracket to reduce the interference of drum vibration on the transducer's operation. The sound-generating unit of the directional sound transmission module adopts a full-range loudspeaker, which works in conjunction with the ultrasonic transducer. During the propagation of ultrasonic waves, the air nonlinear effect self-demodulates to form audible sound, and a clear sound field is formed only on the ultrasonic propagation path to achieve directional sound generation. The sound field propagation angle is adjustable to meet the auditory coverage requirements of different scenarios.

5. A method for operating a multi-color harmonic electronic drum kit that coordinates audiovisual perception, characterized in that, The application of the audiovisual perception-coordinated multicolor harmonic electronic drum kit according to any one of claims 1-4 includes the following steps: Step 1: The performer quickly locates the corresponding pitch based on the color of the drum (e.g., red corresponds to note 1) and strikes the drumhead; Step 2: The vibration generated by the strike is initially absorbed by the elastic buffer layer of the drum surface, and the sound-absorbing cotton absorbs the residual noise in the drum cavity, ensuring that the signal captured by the acquisition module is pure. The acquisition module captures the striking force and converts it into an electrical signal, which is then transmitted to the control module. Step 3: The control module filters and amplifies the signal, extracts the corresponding timbre from the sound source module according to the selected volume, timbre, and pitch, synthesizes the audio, and finally plays the audio through the directional sound transmission module.

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