Saxophone with sound amplification accompaniment function
By incorporating a Bluetooth speaker and pickup head inside the saxophone's bell tube, combined with a CSR8675 chip and DSP processor, the problem of insufficient volume in traditional saxophones has been solved, enabling amplification and accompaniment functions, thus improving performance convenience and experience.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-25
- Publication Date
- 2026-04-14
AI Technical Summary
Traditional saxophones rely on the resonance of the instrument and the vibration of the air to produce sound. The volume is limited by the physical resonance frequency and the sound absorption coefficient of the environment. It requires additional microphones, amplifier systems and tuning equipment, which affects the player's activities and experience.
A Bluetooth speaker and pickup are installed inside the saxophone tube. Real-time amplification and accompaniment signal transmission are achieved through a control chip. The chip integrates a CSR8675 chip and a DSP processor, supporting wireless connection and audio mixing.
It enables saxophone amplification and accompaniment without external equipment, improving performance convenience and experience, reducing equipment dependence, and adapting to diverse performance scenarios.
Smart Images

Figure CN224123112U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a saxophone with amplification and accompaniment functions, and relates to the field of saxophone equipment technology. Background Technology
[0002] As an important melodic instrument in modern orchestras and jazz, the saxophone's traditional structure is based on brass and wooden reeds, relying on natural resonance to produce sound, and its function is limited to pure acoustic performance.
[0003] However, with the diversification of music performance scenarios and the popularization of electronic music technology, existing technologies have the following drawbacks: traditional saxophones rely entirely on the resonance of the instrument and air vibration, and the volume is limited by the physical resonant frequency and the environmental sound absorption coefficient. In large stages, outdoor performances, or noisy environments, additional microphones, amplifier systems, and tuning equipment are required, which restricts the performer's movement and affects the performance experience. Therefore, a saxophone with amplification accompaniment function has been proposed. Utility Model Content
[0004] The purpose of this invention is to address the deficiencies or shortcomings of existing technologies by providing a saxophone with amplification and accompaniment functions. By installing a Bluetooth speaker and a pickup head inside the saxophone's horn tube, it can amplify the sound in real time during performance and transmit audio accompaniment signals through external devices to achieve mixed output, thereby improving the convenience of performances and bringing a better experience to performers and audiences.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: It includes a saxophone body 1, a curved tube 2 at the front end of the saxophone body 1, a sound amplification and accompaniment mechanism on the curved tube 2, the sound amplification and accompaniment mechanism including a speaker tube 3 and a playback mechanism 4, the playback mechanism 4 being located at the top of the speaker tube 3, a control main board 6 being located inside the speaker tube 3, a control chip 61 being located on the control main board 6, the control chip 61 being wirelessly connected to the playback mechanism 4, a connecting tube 5 being located on the curved tube 2 and connected to the speaker tube 3, a pickup head 8 being located inside the connecting tube 5, and the pickup head 8 being electrically connected to the control main board 6.
[0006] Furthermore, the playback mechanism 4 includes a Bluetooth speaker 41 and a dust cover 42. The Bluetooth speaker 41 is installed inside the dust cover 42, and the dust cover 42 is installed on the top of the speaker tube 3.
[0007] Furthermore, the top of the speaker tube 3 is provided with a speaker-shaped mounting part 31 for mounting the playback mechanism 4.
[0008] Furthermore, the control chip 61 adopts the CSR8675 chip, which integrates an ARM Cortex M4 chip and a DSP processor.
[0009] Furthermore, a rechargeable battery 7 is provided at the top of the connecting pipe 5, and the rechargeable battery 7 is arranged adjacent to the control motherboard 6.
[0010] Furthermore, the control motherboard 6 is provided with function buttons 9 and a charging port 10, and the function buttons 9 and the charging port 10 extend from the speaker tube 3 toward the saxophone body 1.
[0011] Furthermore, a sealing ring 11 is provided at the bottom of the speaker tube 3 to cooperate with the rechargeable battery 7.
[0012] Furthermore, the connecting pipe 5 is provided with a sound outlet 51 on its side.
[0013] After adopting the above technical solution, the beneficial effects of this utility model are as follows: by setting a Bluetooth speaker and a pickup head inside the saxophone tube, the sound can be amplified in real time during performance, and the audio accompaniment signal can be transmitted through external devices to achieve mixed output, thereby improving the convenience of the performance and bringing a better experience to the performer and the audience. Attached Figure Description
[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0015] Figure 1 This is a schematic diagram of the structure of this utility model;
[0016] Figure 2 yes Figure 1 The second angle view;
[0017] Figure 3 yes Figure 2 A schematic diagram of the structure after removing the horn tube 3;
[0018] Figure 4 This is a schematic diagram of the disassembled state of the amplification and accompaniment mechanism in this utility model;
[0019] Figure 5 This is a schematic diagram of the connecting pipe 5 in this utility model.
[0020] Explanation of reference numerals in the attached diagram: 1. Saxophone body; 2. Bend; 3. Speaker tube; 4. Playback mechanism; 5. Connecting tube; 6. Control main board; 7. Rechargeable battery; 8. Pickup head; 9. Function button; 10. Charging port; 11. Sealing ring; 31. Mounting part; 41. Bluetooth speaker; 42. Dustproof cover; 51. Sound outlet; 61. Control chip. Detailed Implementation
[0021] See Figures 1-5 As shown, the technical solution adopted in this specific embodiment is as follows: It includes a saxophone body 1, with a curved tube 2 at the front end of the saxophone body 1. A sound amplification and accompaniment mechanism is installed on the curved tube 2, which includes a speaker tube 3 and a playback mechanism 4. The playback mechanism 4 is located at the top of the speaker tube 3, and a control main board 6 is installed inside the speaker tube 3. A control chip 61 is installed on the control main board 6, and the control chip 61 is wirelessly connected to the playback mechanism 4. A connecting tube 5 is also installed on the curved tube 2 and connected to the speaker tube 3. A pickup head 8 is installed inside the connecting tube 5 and is electrically connected to the control main board 6. Traditionally, saxophones usually only produce sound through their own cavity. During performances, a microphone is clipped to the front end of the speaker tube to pick up the sound, which is then amplified through an external speaker. The accompaniment audio is also played synchronously through the external speaker to complete the performance. However, in some scenarios where it is inconvenient to use external amplification equipment, the volume of the saxophone itself is too small to achieve full sound in an open space. To achieve the desired performance effect, and considering that existing clip-on microphones may detach during performance if the performer moves too much, affecting the performance quality, this embodiment incorporates a playback mechanism as an amplification unit on the saxophone. A pickup head is installed inside the connecting tube at the front end of the curved tube. The pickup head converts the sound during performance into an electrical signal, which is transmitted to the control chip. The electrical signal is processed by the control chip before being transmitted to the playback mechanism for amplification. This allows for direct amplification of the performance without the need for external pickup and amplification devices, making it more convenient for performers to play in special venues where external equipment is unavailable. Simultaneously, after the control chip establishes a wireless connection with an external audio source device, the external audio source device transmits the accompaniment audio to the control chip, which processes it before transmitting it to the playback mechanism for playback, enabling performances with accompaniment. Accompaniment and amplification are integrated into one unit, no longer limited by venue or equipment, bringing a better experience to performance activities.
[0022] More specifically, the playback mechanism 4 includes a Bluetooth speaker 41 and a dust cover 42. The Bluetooth speaker 41 is installed inside the dust cover 42, and the dust cover 42 is installed on the top of the speaker tube 3. In this embodiment, the main body of the playback mechanism is a Bluetooth speaker, and a dust cover is provided on the Bluetooth speaker to protect it. When the Bluetooth speaker emits sound, it uses the speaker tube as a resonance cavity, which can achieve a better sound amplification effect.
[0023] More specifically, the top of the speaker tube 3 is provided with a speaker-shaped mounting part 31 for mounting the playback mechanism 4. The mounting part also has the structure of a traditional saxophone and is provided with a mounting structure that is easy to disassemble, such as threads or buckles. The dust cover is also provided with a matching disassembly and assembly structure, which facilitates the installation and disassembly of the playback mechanism.
[0024] More specifically, the control chip 61 uses a CSR8675 chip, which integrates an ARM Cortex M4 chip and a DSP processor. In this embodiment, to reduce the latency of the audio signal and to better mix the audio signal collected by the microphone with the accompaniment audio, the CSR8675 chip is used. This results in better low-latency Bluetooth signal transmission, and the audio signal processed by the DSP processor achieves better playback. In another embodiment, an independent DAC chip can be set on the control motherboard for decoding and encoding, further reducing sound quality loss and improving playback.
[0025] More specifically, a rechargeable battery 7 is installed at the top of the connecting pipe 5. The rechargeable battery 7 is located adjacent to the control motherboard 6. The rechargeable battery is provided to power the saxophone for independent performances. Due to the detachable structure, the battery can be replaced when charging is inconvenient due to low voltage, so as to ensure the continuity of the performance and improve the user experience.
[0026] More specifically, the control motherboard 6 is equipped with function buttons 9 and a charging port 10. The function buttons 9 and the charging port 10 extend from the speaker tube 3 toward the saxophone body 1. The function buttons include a power button and volume up / down buttons. Pressing the power button is sufficient for amplification and accompaniment. The power button also serves as a Bluetooth pairing switch. Pressing and holding it allows pairing with external audio source devices. During performances, the volume can be adjusted using the volume buttons as needed.
[0027] More specifically, the bottom of the speaker tube 3 is provided with a sealing ring 11 that cooperates with the rechargeable battery 7. The sealing ring not only secures the control board and the rechargeable battery, but also prevents some moisture and dust generated during blowing from spreading to the Bluetooth speaker.
[0028] More specifically, the connecting tube 5 is provided with a sound outlet 51 on its side. When the saxophone is used, the airflow enters and exits through the sound outlet, and the pickup head is located close to the sound outlet to ensure the sound pickup effect.
[0029] The working principle of this utility model is as follows: During performance, the amplification and accompaniment functions can be selected as needed, or amplification can be disabled. When amplification is required, the function button 9 is pressed to connect the circuit and start the Bluetooth speaker 41. At this time, the sound signal emitted during performance is picked up by the microphone 8 and transmitted to the Bluetooth speaker 41 for amplification and playback through the control chip 61. The function button 9 can adjust the playback volume. If accompaniment music is to be played, an external device such as a mobile phone or tablet is used to establish a connection with the control chip 61. The accompaniment signal is mixed with the sound signal collected by the microphone 8 through the ARM Cortex M4 chip and DSP processor and then transmitted to the Bluetooth speaker 41 for playback, thus realizing accompaniment performance.
[0030] The above description is only used to illustrate the technical solution of this utility model and is not intended to limit it. Any other modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model, as long as they do not depart from the spirit and scope of the technical solution of this utility model, should be covered within the scope of the claims of this utility model.
Claims
1. A saxophone with amplification accompaniment function, characterized in that: It includes a saxophone body (1), the front end of which is provided with a curved tube (2), and a sound amplification and accompaniment mechanism is provided on the curved tube (2). The sound amplification and accompaniment mechanism includes a speaker tube (3) and a playback mechanism (4). The playback mechanism (4) is located at the top of the speaker tube (3). A control main board (6) is provided inside the speaker tube (3). A control chip (61) is provided on the control main board (6). The control chip (61) is wirelessly connected to the playback mechanism (4). A connecting tube (5) is also provided on the curved tube (2) and connected to the speaker tube (3). A pickup head (8) is provided inside the connecting tube (5). The pickup head (8) is electrically connected to the control main board (6).
2. A saxophone with amplification accompaniment function according to claim 1, characterized in that: The playback mechanism (4) includes a Bluetooth speaker (41) and a dust cover (42). The Bluetooth speaker (41) is installed inside the dust cover (42), and the dust cover (42) is installed on the top of the speaker tube (3).
3. A saxophone with amplification accompaniment function according to claim 1, characterized in that: The top of the horn tube (3) is provided with a horn-shaped mounting part (31) for mounting the playback mechanism (4).
4. A saxophone with amplification accompaniment function according to claim 1, characterized in that: The control chip (61) is a CSR8675 chip, which integrates an ARM CortexM4 chip and a DSP processor.
5. A saxophone with amplification accompaniment function according to claim 1, characterized in that: A rechargeable battery (7) is provided on the top of the connecting pipe (5), and the rechargeable battery (7) is arranged adjacent to the control motherboard (6).
6. A saxophone with amplification accompaniment function according to claim 1, characterized in that: The control motherboard (6) is equipped with function buttons (9) and a charging port (10), and the function buttons (9) and the charging port (10) extend from the speaker tube (3) toward the saxophone body (1).
7. A saxophone with amplification accompaniment function according to claim 1, characterized in that: The bottom of the horn tube (3) is provided with a sealing ring (11) that cooperates with the rechargeable battery (7).
8. A saxophone with amplification accompaniment function according to claim 1, characterized in that: The connecting pipe (5) is provided with a sound outlet (51) on its side.