A channel separation structure for a musical instrument speaker with multimedia functions

Abstract

This utility model discloses a channel separation structure for a musical instrument speaker with multimedia functionality, relating to the field of audio equipment technology. It includes a cabinet with a musical instrument channel in the center and multimedia channels on both sides. The multimedia channels on both sides are isolated from the central musical instrument channel by an isolation plate module. The musical instrument channel is dedicated to connecting musical instrument sound sources, while the multimedia channels are used to connect non-musical instrument sound sources. The musical instrument channel and the multimedia channels have independent signal processing paths, including pre-amplification, filtering, and gain control, achieving complete signal isolation between them. This application provides a channel separation structure for a musical instrument speaker with multimedia functionality. Through channel separation and independent speaker output, the musical instrument sound and multimedia sound do not interfere with each other, preserving the detailed characteristics of each sound source, and particularly effectively improving the clarity and dynamic range of the musical instrument sound.

Description

Technical Field

[0001] This utility model relates to the field of audio equipment technology, specifically to a channel separation structure for a musical instrument speaker with multimedia functions. Background Technology

[0002] Multimedia instrument speakers are audio devices that integrate multiple audio input sources (such as instrument input, auxiliary input, Bluetooth input, microphone input, etc.). They are widely used in music performance, entertainment, and teaching scenarios. Traditional multimedia instrument speaker designs typically employ a multi-source signal mixing processing method, where all input signals (such as instrument signals, multimedia audio signals, etc.) are synthesized through a mixing circuit and then driven by the same amplifier chip to produce sound from the same set of speakers. This design simplifies the speaker's structure and circuit layout, reducing manufacturing costs.

[0003] However, this hybrid processing method has significant drawbacks: due to the substantial differences in frequency characteristics, dynamic range, and sound field directivity between different sound sources, the mixed signal can lead to decreased sound resolution and blurred directivity. For example, instrument signals (such as electric guitars or keyboards) require high resolution and precise sound field positioning, while multimedia signals (such as music played via Bluetooth) may emphasize wide frequency response and dispersion. After mixing, the details of instrument sounds are easily masked by multimedia sounds, resulting in a degraded user experience. This problem is particularly pronounced in small speakers due to speaker size limitations, reducing product competitiveness and failing to meet users' demands for high-quality sound. Utility Model Content

[0004] The purpose of this invention is to provide a channel separation structure for a musical instrument speaker with multimedia functions, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a channel separation structure for a musical instrument speaker with multimedia function, comprising a cabinet, a musical instrument channel in the middle of the cabinet, and multimedia channels on both sides of the cabinet, wherein the multimedia channels on both sides are isolated from the musical instrument channel in the middle by an isolation plate module.

[0006] Furthermore, the instrument channel is dedicated to connecting instrument sound sources, while the multimedia channel is used to connect non-instrument sound sources. The instrument channel and the multimedia channel have independent signal processing paths, including pre-amplification, filtering, and gain control, to achieve complete signal isolation between the instrument channel and the multimedia channel.

[0007] Furthermore, the instrument channel and the multimedia channel each correspond to multiple independent power amplifier units, and the instrument channel is connected to the first power amplifier unit, while the multimedia channel is connected to the second power amplifier unit.

[0008] Furthermore, the instrument channel and the multimedia channel each have multiple independent speakers. The instrument channel emits sound through a first speaker, and the first speaker of the instrument channel is optimized for the sound characteristics of instruments. The multimedia channel emits sound through a second speaker, and the second speaker of the multimedia channel is optimized for the overall frequency band and stereo effect.

[0009] Furthermore, the isolation plate module includes an outer MDF board, a middle damping adhesive, an inner lead plate, and an additional layer on the cavity side. The outer MDF board faces the multimedia channels on both sides, and damping adhesive is provided on the inner side of the MDF board. A lead plate is provided on the inner side of the damping adhesive, and an additional layer is provided on the inner side of the lead plate. The additional layer is arranged on the side facing the instrument channel.

[0010] Furthermore, the sandwich structure composed of the MDF board, damping adhesive, and lead plate is made by hot pressing, and the lead plate is bonded to the glass wool sound-absorbing material that makes up the additional layer with environmentally friendly pressure-sensitive adhesive and fixed with sound-permeable mesh.

[0011] Compared with existing technologies, the purpose of this utility model is to provide a channel separation structure for a musical instrument speaker with multimedia functions. By completely separating the instrument channel and the multimedia channel and using independent speakers, it solves the problem of reduced sound resolution and directivity in traditional hybrid designs, thereby improving user experience and product competitiveness. 1. Improved sound resolution: Through channel separation and independent speaker output, instrument sounds and multimedia sounds do not interfere with each other, preserving the detailed characteristics of each sound source, especially improving the clarity and dynamic range of instrument sounds.

[0012] 2. Improved sound directivity: Independent speaker layouts allow for optimization of sound field directionality for different channels. For example, instrument channel speakers can be designed to be highly directional for easy monitoring by the performer, while multimedia channel speakers can be designed to have better diffusion to enhance the ambient atmosphere, which is particularly effective in small speaker cabinets.

[0013] 3. Enhanced User Experience: Even with low-cost components, this design significantly improves sound quality, giving the product a competitive edge. Users can enjoy high-resolution instrumental performances and rich multimedia audio simultaneously without the need for additional equipment.

[0014] 4. Flexible structure: This solution can be implemented through modular design without affecting the overall compactness of the speaker, and it is easy to expand other functions (such as wireless control or intelligent sound effects). Attached Figure Description

[0015] Figure 1 This is a front view structural diagram of the device of this utility model; Figure 2 This is a side view of the device of this utility model. Figure 3 This is a schematic diagram of the isolation plate module structure of this utility model; Figure 4 This is a schematic diagram illustrating the principle of separating the musical instrument functions according to this utility model. Figure 5 This is a schematic diagram illustrating the principle of multimedia function separation in this utility model.

[0016] In the diagram: 1. Cabinet; 2. Instrument channel; 3. First speaker; 4. Multimedia channel; 5. Second speaker; 6. Isolation module; 601. MDF board; 602. Damping adhesive; 603. Lead plate; 604. Additional layer. Detailed Implementation

[0017] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0018] like Figures 1 to 2 As shown, a channel separation structure for a multimedia-enabled musical instrument speaker includes a cabinet 1. A musical instrument channel 2 is located in the center of the cabinet 1, and multimedia channels 4 are located on both sides of the cabinet 1. The multimedia channels 4 on both sides are isolated from the central musical instrument channel 2 by an isolation plate module 6. The musical instrument channel 2 is dedicated to connecting musical instrument sound sources, while the multimedia channels 4 are used to connect non-musical instrument sound sources. The musical instrument channel 2 and the multimedia channels 4 have independent signal processing paths, including pre-amplification, filtering, and gain control, to achieve complete signal isolation between the musical instrument channel 2 and the multimedia channels 4. The musical instrument channel 2 and the multimedia channels 4 each correspond to multiple independent power amplifier units. The musical instrument channel 2 is connected to a first power amplifier unit, and the multimedia channels 4 are connected to a second power amplifier unit. The musical instrument channel 2 and the multimedia channels 4 each correspond to multiple independent speakers. The musical instrument channel 2 emits sound through a first speaker 3, which is optimized for the sound characteristics of musical instruments. The multimedia channels 4 emit sound through a second speaker 5, which is optimized for the overall frequency band and stereo effect. The specific operation is as follows: through channel separation and independent speaker output, the instrument sound and multimedia sound do not interfere with each other, preserving the detailed characteristics of their respective sound sources, especially improving the clarity and dynamic range of the instrument sound; like Figure 3As shown, the isolation plate module 6 includes an outer MDF board 601, a middle damping adhesive 602, an inner lead plate 603, and an additional layer 604 on the cavity side. The outer MDF board 601 faces the multimedia channels 4 on both sides, and the damping adhesive 602 is provided on the inner side of the MDF board 601. The lead plate 603 is provided on the inner side of the damping adhesive 602, and the additional layer 604 is provided on the inner side of the lead plate 603. The additional layer 604 is arranged on the side facing the instrument channel 2. The sandwich structure composed of the MDF board 601, damping adhesive 602, and lead plate 603 is made by hot pressing. The lead plate 603 and the glass wool sound-absorbing material that makes up the additional layer 604 are bonded with environmentally friendly pressure-sensitive adhesive and fixed with a sound-permeable mesh. The specific operation is as follows: The isolation plate module 6 consists of a sandwich structure composed of MDF board 601, damping glue 602 and lead plate 603, and an additional layer of glass wool sound-absorbing material 604 directly facing the cavity side of the instrument channel 2. The additional layer of sound-absorbing material 604 directly intercepts the high-frequency sound waves of the instrument channel 2 to avoid reflection interference. The combination of lead plate 603 and damping glue 602 effectively suppresses vibration in the 300Hz frequency band and reduces solid-borne sound transmission. MDF board 601 serves as a structural support base, providing basic rigidity. There is no need to add an extra cavity. Dual-channel isolation is achieved through material stacking, which is suitable for compact speaker design.

[0019] To achieve the above objectives, the present invention adopts the following technical solution: A channel separation structure for a musical instrument speaker with multimedia functions includes multiple sound source input interfaces (such as musical instrument input interface, auxiliary input interface, Bluetooth module, microphone input interface, etc.), signal processing circuit, power amplifier circuit and speaker system.

[0020] The audio input interface is divided into at least two independent channels: instrument channel 2 and multimedia channel 4. Instrument channel 2 is dedicated to connecting instrument audio sources (such as electric guitar, electronic drums, etc.), and multimedia channel 4 is used to connect non-instrument audio sources (such as Bluetooth devices, auxiliary audio devices, microphones, etc.).

[0021] The signal processing circuit includes a channel separation module, which completely isolates the signals of instrument channel 2 and multimedia channel 4 without mixing them. Each channel has an independent signal processing path, including preamplification, filtering and gain control.

[0022] The power amplifier circuit includes multiple independent power amplifier units, each corresponding to a channel. For example, instrument channel 2 is connected to the first power amplifier unit, and multimedia channel 4 is connected to the second power amplifier unit.

[0023] The loudspeaker system includes multiple independent loudspeakers or loudspeaker groups, each corresponding to a channel. The instrument channel 2 emits sound through the first loudspeaker 3, and the multimedia channel 4 emits sound through the second loudspeaker 5. Preferably, the loudspeaker of the instrument channel 2 is optimized for the sound characteristics of the instrument (such as mid-to-high frequency resolution), while the loudspeaker of the multimedia channel 4 is optimized for the overall frequency band and stereo effect. The enclosure 1 physically isolates the two channels through the isolation plate module 6, thereby avoiding mutual interference between the two channels.

[0024] In addition, the speaker may include a control module for users to adjust the volume, equalization and other parameters of each channel to achieve flexible sound effect management. Channel separation can be achieved through hardware circuits (such as splitters, independent PCB layout) or digital signal processing (DSP) to ensure that there is no cross-interference of signals.

[0025] Finally, the isolation module 6 consists of a sandwich structure made of MDF board 601, damping glue 602 and lead plate 603, and an additional layer of glass wool sound-absorbing material 604 facing the cavity side of the instrument channel 2. The sound-absorbing material additional layer 604 directly intercepts the high-frequency sound waves of the instrument channel 2 to avoid reflection interference. The combination of lead plate 603 and damping glue 602 effectively suppresses vibration in the 300Hz frequency band and reduces solid-borne sound transmission. MDF board 601 serves as a structural support base, providing basic rigidity. There is no need to add an extra cavity. Dual-channel isolation is achieved through material stacking, which is suitable for compact speaker design.

[0026] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A channel separation structure for a musical instrument speaker with multimedia functions, comprising a cabinet (1), characterized in that, The box (1) has a musical instrument channel (2) in the middle and multimedia channels (4) on both sides of the box (1). The multimedia channels (4) on both sides are isolated from the musical instrument channel (2) in the middle by an isolation plate module (6).

2. The channel separation structure of a musical instrument speaker with multimedia function according to claim 1, characterized in that, The instrument channel (2) is dedicated to connecting instrument sound sources, and the multimedia channel (4) is used to connect non-instrument sound sources. The instrument channel (2) and the multimedia channel (4) have independent signal processing paths, including preamplification, filtering and gain control, to achieve complete signal isolation between the instrument channel (2) and the multimedia channel (4).

3. The channel separation structure of a musical instrument speaker with multimedia function according to claim 2, characterized in that, The instrument channel (2) and the multimedia channel (4) are respectively connected to multiple independent power amplifier units, and the instrument channel (2) is connected to the first power amplifier unit, and the multimedia channel (4) is connected to the second power amplifier unit.

4. The channel separation structure of a musical instrument speaker with multimedia function according to claim 3, characterized in that, The instrument channel (2) and the multimedia channel (4) are respectively equipped with multiple independent speakers. The instrument channel (2) emits sound through the first speaker (3), and the first speaker (3) of the instrument channel (2) is optimized for the sound characteristics of the instrument. The multimedia channel (4) emits sound through the second speaker (5), and the second speaker (5) of the multimedia channel (4) is optimized for the overall frequency band and stereo effect.

5. The channel separation structure of a musical instrument speaker with multimedia function according to claim 4, characterized in that, The isolation plate module (6) includes an outer MDF board (601), a middle damping adhesive (602), an inner lead plate (603), and an additional layer (604) on the cavity side. The outer MDF board (601) faces the multimedia channels (4) on both sides, and the inner side of the MDF board (601) is provided with damping adhesive (602). The inner side of the damping adhesive (602) is provided with lead plate (603), and the inner side of the lead plate (603) is provided with additional layer (604). The additional layer (604) is arranged on the side facing the instrument channel (2).

6. The channel separation structure of a musical instrument speaker with multimedia function according to claim 5, characterized in that, The sandwich structure consisting of the MDF board (601), damping adhesive (602) and lead plate (603) is made by hot pressing composite, and the lead plate (603) and the glass wool sound-absorbing material that makes up the additional layer (604) are bonded together with environmentally friendly pressure-sensitive adhesive and fixed with sound-permeable mesh.

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