An audio assist device
By integrating amplification and sound pickup audio auxiliary devices, employing a multi-microphone array and DSP chip noise reduction, and featuring a built-in power supply that supports charging while in use, the system solves the problems of noise reduction and insufficient volume in noisy environments for mobile live streaming or call devices, thereby improving voice clarity and ease of operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN QUSU SPACE TECH CO LTD
- Filing Date
- 2025-06-30
- Publication Date
- 2026-07-03
AI Technical Summary
Existing mobile live streaming or call devices have poor background noise reduction in noisy environments, cannot be used while charging, and the built-in speaker volume is insufficient, failing to meet user needs.
Design an audio auxiliary device that integrates amplification and sound pickup functions, including independent microphone and amplification components, employing a multi-microphone array and DSP chip for noise reduction, a built-in power supply component to support simultaneous charging and use, and a control panel for convenient operation.
It effectively reduces noise in noisy environments, improves voice clarity and volume, addresses the shortcomings of built-in mobile phone devices, and provides convenient operation and extended usage time.
Smart Images

Figure CN224459976U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of audio enhancement and noise reduction technology for mobile devices, and more specifically, to an audio auxiliary device. Background Technology
[0002] In the field of modern electronic device applications, scenarios such as live streaming and mobile phone calls are becoming increasingly common. Currently, when users conduct live streaming or make calls, they typically rely on the phone's built-in microphone and speaker functions, or use a separate microphone and speaker system. While these devices can meet basic sound pickup and playback needs to a certain extent, their performance is significantly limited when facing complex usage environments.
[0003] Currently, existing technologies have many problems that urgently need to be solved. When users are in noisy environments and are conducting live streaming or making calls, the phone itself or traditional external devices often cannot effectively reduce background noise, resulting in blurry sound pickup and poor call or live streaming quality. At the same time, the volume of the phone's built-in speaker is often insufficient in outdoor scenarios, making it difficult to meet users' needs for clear and loud sound playback. In addition, most existing devices cannot achieve the function of using the phone while charging, and the problem of insufficient phone battery is particularly prominent during long live streaming or calls. Utility Model Content
[0004] The purpose of this invention is to provide an audio auxiliary device that solves the problem that existing mobile phone live streaming or call devices have poor background noise reduction in noisy environments and cannot be used while charging.
[0005] This utility model is achieved through the following technical solution:
[0006] An audio auxiliary device includes: a main body, a control panel, a speaker amplifier, and a microphone assembly. The control panel is located at the bottom of the main body, the speaker amplifier is located at the top of the main body, and the microphone assembly is located on the side of the main body. Both the speaker amplifier and the microphone assembly are connected to the control panel. The speaker amplifier is used to play audio aloud, and the microphone assembly is used to collect audio signals.
[0007] Optionally, the control panel is provided with a microphone mute switch, a volume adjustment button, and a track adjustment button; wherein, the microphone mute switch is used to control the microphone assembly to turn on, off, and mute; the volume adjustment button is used to adjust the volume of the amplification assembly; and the track adjustment button is used to switch tracks.
[0008] Optionally, the microphone mute switch, the volume control button, and the track control button are joined together in a disc shape.
[0009] Optionally, the volume adjustment keys include a first volume key and a second volume key; wherein the first volume key is used to control the volume of the amplification component to increase; and the second volume key is used to control the volume of the amplification component to decrease.
[0010] Optionally, the track adjustment keys include a first track key and a second track key; wherein, the first track key is used to switch the currently playing track to the next track; and the second track key is used to switch the currently playing track to the previous track.
[0011] Optionally, the surface of the amplification component is provided with a plurality of sound outlet holes, and the plurality of sound outlet holes are arranged in an array on the surface of the amplification component.
[0012] Optionally, a sensing component is provided at the top of the amplification component, and the sensing component is connected to the amplification component; wherein, the sensing component is used to sense and control the playback, pause and mute of the amplification component.
[0013] Optionally, the microphone assembly includes a first microphone and a second microphone, which are disposed opposite to each other on the side of the main body.
[0014] Optionally, the main body has a built-in power supply component, and a first interface is provided on the main body. The first interface is connected to the power supply component, and a charging identifier is provided next to the first interface.
[0015] Optionally, the main body is further provided with a second interface, and a device connection identifier is provided next to the second interface.
[0016] The technical solution of this utility model has at least the following advantages and beneficial effects:
[0017] The amplification (speaker), pickup (microphone), and control functions are integrated into one unit, avoiding the hassle of users having to carry, connect, and manage multiple devices (such as separate microphones and separate speakers) separately. The control panel is centrally located at the bottom of the unit, making it convenient for users to operate and adjust the audio functions in a unified manner.
[0018] The independent microphone assembly is specifically designed for capturing audio signals, and its performance (such as directionality and sensitivity) is superior to the built-in microphone of the mobile phone. The side-mounted design of the microphone assembly is more in line with the position of the mouth when the user holds or places the device, which helps to pick up human voices more directly and clearly. Compared with the built-in microphone of the mobile phone, this external, dedicated microphone assembly can focus on human voices more effectively in noisy environments, reduce background noise interference, and thus improve the clarity and quality of voice during live broadcasts or calls.
[0019] The dedicated amplification component is specifically designed for external audio playback. Its power, speaker unit size, and acoustic design are superior to the built-in speakers in mobile phones. It solves the problems of insufficient volume and weak sound penetration of the built-in speakers in outdoor or noisy environments, ensuring that users and listeners can clearly hear the content being played (such as background noise in live broadcasts and the voice of the other party in a call). The dedicated amplification component can also improve sound quality and reduce the distortion commonly found in small mobile phone speakers.
[0020] The layout of the speaker unit on the top, the microphone unit on the side, and the control panel on the bottom conforms to the principles of acoustic propagation and ergonomics (the top has good sound diffusion, the side has strong sound pickup directionality, and the bottom is stable for operation), reducing the risk of sound feedback (howling) from the device itself and optimizing the user experience. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the overall front structure of the audio auxiliary device according to an embodiment of the present invention;
[0022] Figure 2 This is a schematic diagram of the overall rear structure of the audio auxiliary device according to an embodiment of the present utility model;
[0023] Figure 3 This is a schematic diagram of the main structure of the audio auxiliary device according to an embodiment of the present utility model;
[0024] Figure 4 This is a right-side structural schematic diagram of the audio auxiliary device according to an embodiment of the present invention;
[0025] Figure 5 This is a bottom view of the audio auxiliary device according to an embodiment of the present invention;
[0026] Figure 6 This is a top view of the audio auxiliary device according to an embodiment of the present invention;
[0027] Icons: 1-Main body, 101-First interface, 102-Second interface, 2-Control panel, 201-Microphone mute switch, 202-First volume button, 203-Second volume button, 204-First track button, 205-Second track button, 3-Amplification component, 301-Sound hole, 302-Sensing component, 4-First microphone, 5-Second microphone. Detailed Implementation
[0028] The following is a detailed description of the embodiments, in conjunction with the accompanying drawings.
[0029] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6An audio auxiliary device includes: a main body 1, a control panel 2, a speaker amplifier 3, and a microphone assembly. The control panel 2 is located at the bottom of the main body 1, the speaker amplifier 3 is located at the top of the main body 1, and the microphone assembly is located on the side of the main body 1. Both the speaker amplifier 3 and the microphone assembly are connected to the control panel 2. The speaker amplifier 3 is used for external audio playback, and the microphone assembly is used for acquiring audio signals. The main body 1 can be designed with an ergonomic grip shape, such as a columnar, gooseneck, or handle-like shape with a base, making it easy for users to hold with one hand or place on a flat surface. The main body 1 internally contains a circuit board, a rechargeable battery, necessary electronic components (such as an audio processing chip, a power amplifier chip, a Bluetooth module, and a wired connection module), and cavities / spaces reserved for the speaker amplifier 3 and the microphone assembly. The main body 1 can be made of plastic, metal, or composite materials, and the surface may have an anti-slip treatment, such as silicone coating or a textured design. The main body 1 integrates a battery management system and supports charging via an interface on the control panel 2. The control panel 2 is the core of user interaction with the device, providing basic operations such as power management, connection control, volume adjustment, and microphone on / off. It transmits commands and signals to the speaker assembly 3, microphone assembly, and internal audio processing unit via internal circuitry. The speaker assembly 3 contains at least one or more speaker units (loudspeakers), positioned upwards or at an angle (towards the user's face) to ensure effective sound diffusion. A sound guide or grille is designed on the top to prevent sound blockage, and an integrated power amplifier (amplifier chip) drives the speakers to produce sufficiently loud sound. The main body 1 features a well-designed resonance cavity for the speaker units to optimize low-frequency response and overall sound quality, avoiding a thin or harsh sound. The microphone assembly contains one or more microphone units (microphones). Ideally, a multi-microphone array (e.g., two or more) should be used. The device integrates a digital signal processing (DSP) chip and noise reduction algorithms (such as ENC - ambient noise cancellation, or cVc - clear voice capture). The algorithm analyzes the main and auxiliary microphone signals in real time, identifying and significantly reducing background noise (such as traffic, human voices, and wind noise) while preserving and enhancing the clarity of the target human voice. You can use an audio cable to connect to the corresponding interface on your phone via the audio interface (AUX / USB-C / Lightning) on Control Panel 2.
[0030] In some embodiments, the control panel 2 is equipped with a microphone mute switch 201, volume adjustment buttons, and track adjustment buttons. The microphone mute switch 201 controls the microphone assembly to turn on, off, and mute; the volume adjustment buttons adjust the volume of the amplification component 3; and the track adjustment buttons switch tracks. The microphone assembly can be muted by clicking the microphone mute switch 201, and turned on and off by pressing and holding it. These buttons are directly integrated into the device's control panel, eliminating the need for users to search for virtual buttons on their phone screens or navigate through multiple menus. During live streaming or calls, especially when holding the device with one hand, users can quickly and directly operate these function buttons with their thumb or fingers. Users do not need to interrupt the live streaming / call process to operate their phones, allowing them to focus more on the content itself (such as facing the camera, interacting with the audience, or checking the teleprompter), improving operational smoothness and professionalism. This allows users to quickly turn the microphone function on or off to adapt to different scenario needs, such as turning off the microphone to save power or avoid picking up irrelevant sounds when speaking is not required. The volume adjustment buttons directly control the volume of the amplification component 3 (i.e., the device's own speaker). This allows users to adjust the speaker volume quickly and precisely based on the actual environment (such as switching from a quiet indoor environment to a noisy outdoor environment), independent of the phone's system volume, ensuring clear and audible sound and solving the core pain point of insufficient volume from the phone's built-in speakers. For live streamers, when switching background music or sound effects during a live stream, they don't need to take their phone off-camera; they can do so directly using buttons on the device, making the process more professional and smoother.
[0031] In some embodiments, the microphone mute switch 201, volume control buttons, and track control buttons are arranged in a circular disc shape. The buttons (microphone mute switch, volume control buttons, and track control buttons) are joined together to form a single circular disc (such as a circular or near-circular layout), facilitating "blind operation" with the thumb or finger when the user holds the device with one hand. Users can quickly locate and operate the buttons without needing to look at their positions, reducing operation time (e.g., quickly mute or adjust volume during live streaming). This directly solves the problem of operation relying on the mobile phone screen in existing technologies, improving efficiency.
[0032] In some embodiments, the volume control keys include a first volume key 202 and a second volume key 203; wherein the first volume key 202 is used to control the volume of the amplification component 3 to increase; and the second volume key 203 is used to control the volume of the amplification component 3 to decrease. Users can directly and instantly increase or decrease the volume without needing to cycle through or long press and wait. This instantaneous response is crucial during live broadcasts or calls when faced with sudden changes in environmental noise (such as passing vehicles or noisy crowds) or when it is necessary to temporarily adjust the playback volume.
[0033] In some embodiments, the track adjustment keys include a first track key 204 and a second track key 205; wherein, the first track key 204 is used to switch the currently playing track to the next track; and the second track key 205 is used to switch the currently playing track to the previous track. During live streaming or calls, users can directly switch tracks using the physical buttons on the device panel without pausing content creation or taking their phone away from the camera, avoiding live streaming stuttering or interaction interruptions caused by track switching and ensuring a smooth process; in scenarios where background music, sound effects, or accompaniment need to be changed quickly (such as switching segments during a live stream or adjusting ambient sound during a call), the "one-step" operation of the physical buttons can achieve millisecond-level response, solving the latency problem of traditional reliance on mobile phone screen operation.
[0034] In some embodiments, a plurality of sound outlet holes 301 are provided on the surface of the sound amplification component 3, and the plurality of sound outlet holes 301 are arrayed on the surface of the sound amplification component 3. The arrayed distribution of sound outlet holes 301 (especially distributed on the upward or obliquely upward surface) allows sound waves to radiate uniformly from multiple points and at a wider angle. This effectively expands the sound coverage range, so that the sound can be heard more clearly in a certain area around the user (such as between the host and the audience during live broadcast, or around the person holding the phone during a call), solving the problem that "the volume of the built-in speaker of the mobile phone is often insufficient in outdoor and other scenarios".
[0035] In some embodiments, a sensing component 302 is provided at the top of the amplifier component 3, and the sensing component 302 is connected to the amplifier component 3; wherein, the sensing component 302 is used to sense and control the playback, pause, and mute of the amplifier component 3. The sensing component 302 can be a capacitive sensor, an infrared sensor, or a proximity sensor, allowing users to operate the amplifier by simple gestures (such as waving, hovering, or lightly touching the air) above the top of the amplifier. Users do not need to precisely press specific buttons or search for the screen; they can quickly play, pause, or mute simply by making a pre-arranged gesture on the top of the device. This greatly simplifies the operation steps and improves the operation speed, especially in scenarios requiring rapid response, such as suddenly needing to mute to deal with sudden noise during a live broadcast.
[0036] In some embodiments, the microphone assembly includes a first microphone 4 and a second microphone 5, which are positioned opposite each other on the sides of the main body 1. The first microphone 4 and the second microphone 5, positioned opposite each other on both sides of the main body, form a basic dual-microphone array. This physical positional difference is crucial for implementing beamforming and ambient noise cancellation algorithms. A built-in DSP chip and noise reduction algorithms (such as ENC or cVc) analyze the differences between the two microphone signals in real time. The algorithm can identify which sounds arrive at both microphones almost simultaneously (i.e., ambient noise from all directions) and which sounds primarily arrive at the main microphone (i.e., the target human voice from a specific direction). The algorithm can significantly reduce or even eliminate the identified ambient noise (such as traffic noise, wind noise, and crowd noise) while preserving and enhancing the clarity of the target human voice. By adjusting the phase and gain of the two oppositely positioned microphone signals, the DSP can create a directional pickup beam. This beam can be more effectively focused in the direction of the user's mouth, suppressing interfering noise from other directions (especially the sides and back of the device). This provides more stable and clearer voice pickup even when the user moves slightly or the device angle changes. This is especially important for handheld mobile use (such as live streaming and talking on the go).
[0037] In some embodiments, the main body 1 has a built-in power supply component, and a first interface 101 is provided on the main body 1. The first interface 101 is connected to the power supply component, and a charging identifier is provided next to the first interface 101. By integrating the power supply component (battery) inside the main body of the device, the device itself has independent power supply capability. The first interface 101 and the built-in power supply component support reverse power supply (OTG power supply) function. That is, the device can charge the mobile phone: when the device has sufficient power but the mobile phone has insufficient power, the built-in battery of the device can be used to charge the mobile phone through the connection cable, further enhancing the "use and charge at the same time" capability and providing greater flexibility. For live streamers, users who make long-term calls, or outdoor workers, this design completely solves the core problem of mobile phones being interrupted due to power depletion when connected to peripherals, significantly extending the available time for mobile phone live streaming / calls. The built-in power supply component of the device can also power all its functional modules such as the speaker component, microphone component, control panel, and DSP chip. The charging identifier (such as a lightning bolt symbol, the word "charging" or an LED indicator) next to the first interface (101) clearly indicates the charging function of the interface, preventing users from mistakenly connecting the interface as an audio input / output interface or other functional interfaces, which could cause damage to the device or malfunction.
[0038] In some embodiments, the main body 1 is further provided with a second interface 102, and a device connection identifier is provided next to the second interface 102. The second interface 102 is specifically designed for device connection (i.e., connecting external devices such as mobile phones), and a device connection identifier (such as a headphone jack symbol, Bluetooth symbol, USB symbol, "Audio" or "Link") is provided next to it, clearly informing the user of the dedicated function of this interface. This clearly distinguishes it from the first interface 101 used for charging (which has a charging identifier next to it), effectively preventing users from plugging into the wrong interface and improving operational convenience and safety. The second interface 102 can be a physical interface, such as a 3.5mm AUX audio interface, a Type-C interface, a Lightning interface, or represent wireless connection, such as a Bluetooth pairing button / indicator area. The identifier clearly indicates its connection attribute. Physical interfaces can provide a stable, low-latency, high-fidelity wired connection option, especially suitable for live streaming, calls, or music playback scenarios with high requirements for sound quality and real-time performance, avoiding interference, delay, or disconnection problems that may occur with Bluetooth connections. It is compatible with mobile phones that do not support Bluetooth or have older Bluetooth versions.
Claims
1. An audio auxiliary device, characterized in that, include: The main body (1), control panel (2), amplification component (3), and microphone component are provided. The control panel (2) is located at the bottom of the main body (1), the amplification component (3) is located at the top of the main body (1), and the microphone component is located on the side of the main body (1). Both the amplification component (3) and the microphone component are connected to the control panel (2). The amplification component (3) is used to play audio aloud, and the microphone component is used to collect audio signals.
2. The audio supplementary device of claim 1, wherein, The control panel (2) is equipped with a microphone mute switch (201), a volume adjustment button, and a track adjustment button; wherein, the microphone mute switch (201) is used to control the opening, closing, and mute of the microphone assembly; the volume adjustment button is used to adjust the volume of the amplifier assembly (3); and the track adjustment button is used to switch tracks.
3. The audio supplementary device of claim 2, wherein, The microphone mute switch (201), the volume control button, and the track control button are joined together in a disc shape.
4. The audio supplementary device of claim 2, wherein, The volume control keys include a first volume key (202) and a second volume key (203); wherein, the first volume key (202) is used to control the volume of the amplification component (3) to increase; and the second volume key (203) is used to control the volume of the amplification component (3) to decrease.
5. The audio supplementary device of claim 2, wherein, The track adjustment keys include a first track key (204) and a second track key (205); wherein, the first track key (204) is used to switch the currently playing track to the next track; and the second track key (205) is used to switch the currently playing track to the previous track.
6. The audio supplementary device of claim 1, wherein, The surface of the amplification component (3) is provided with a plurality of sound holes (301), and the plurality of sound holes (301) are arranged in an array on the surface of the amplification component (3).
7. The audio supplementary device of claim 1, wherein, The top of the amplification component (3) is provided with a sensing component (302), which is connected to the amplification component (3); wherein, the sensing component (302) is used to sense and control the playback, pause and mute of the amplification component (3).
8. The audio supplementary device of claim 1, wherein, The microphone assembly includes a first microphone (4) and a second microphone (5), which are disposed opposite to each other on the side of the main body (1).
9. The audio supplementary device of claim 1, wherein, The main body (1) has a built-in power supply component, and a first interface (101) is provided on the main body (1). The first interface (101) is connected to the power supply component, and a charging identifier is provided next to the first interface (101).
10. The audio supplementary device of claim 9, wherein, The main body (1) is also provided with a second interface (102), and a device connection identifier is provided next to the second interface (102).