Handheld microphone with microphone switching function

Abstract

The utility model relates to audio equipment technical field. Provide a handheld microphone with microphone switching function, include: handheld part and audio acquisition part, audio acquisition part set up on handheld part, audio acquisition part has built -in first microphone and second microphone, be provided with switching key on handheld part, first microphone with second microphone all are connected with switching key, wherein, first microphone is used for K song, second microphone is used for voice call. Solve the problem that the prior art live K song microphone and call microphone independent design cause the equipment switching cumbersome, long -distance pickup quality poor.

Description

Technical Field

[0001] This utility model relates to the field of audio equipment technology, and more specifically, to a handheld microphone with microphone switching function. Background Technology

[0002] With the popularization of mobile live streaming and online karaoke applications, handheld microphones have become a core tool for broadcasters and music lovers.

[0003] In existing technologies, live-streaming karaoke microphones and call microphones are typically designed independently. While traditional karaoke microphones can achieve basic sound pickup, their sound reproduction is insufficient, lacking professional-grade fidelity. Ordinary call microphones, on the other hand, experience a sharp drop in clarity at long distances, failing to meet the needs of multi-person calls. Users must manually switch between live-streaming and call modes or detach the phone from the microphone for calls, resulting in inefficient operation. Existing technologies often rely on multi-wire connections (such as audio adapter cables + charging cables) or Bluetooth connections. The former is prone to loose connections leading to interruptions, while the latter suffers from high latency and unstable pairing issues. Utility Model Content

[0004] The purpose of this invention is to provide a handheld microphone with microphone switching function, which aims to solve the problems of cumbersome device switching and poor sound pickup quality at long distances caused by the separate design of live karaoke microphones and call microphones in the prior art.

[0005] This utility model is achieved through the following technical solution:

[0006] A handheld microphone with microphone switching function includes: a handheld part and an audio acquisition part, wherein the audio acquisition part is disposed on the handheld part, the audio acquisition part has a built-in first microphone and a second microphone, and a switching button is provided on the handheld part, wherein the first microphone and the second microphone are both connected to the switching button;

[0007] The first microphone is used for karaoke; the second microphone is used for voice calls.

[0008] Optionally, the handheld part is provided with a storage component, which has a number of karaoke sound effects built in. The storage component is connected to the first microphone and the switch key respectively. The switch key is used to switch between karaoke mode and call mode, as well as to switch karaoke sound effects in karaoke mode.

[0009] Optionally, the handheld part is provided with a mute switch; wherein the mute switch is used to control the first microphone and the second microphone to be turned on, off, or muted.

[0010] Optionally, the handheld part is provided with volume adjustment keys; wherein the volume adjustment keys are used to adjust the volume of the first microphone and the second microphone.

[0011] Optionally, the volume control keys include a first volume key and a second volume key; wherein the first volume key is used to control the volume to increase; and the second volume key is used to control the volume to decrease.

[0012] Optionally, the handheld part is provided with an indicator component; wherein the indicator component is used to indicate the current working status of the first microphone and the second microphone.

[0013] Optionally, the handheld unit has a built-in power supply assembly connected to the first microphone and the second microphone; wherein the power supply assembly is used to provide power to the various electrical components.

[0014] Optionally, the handheld part is further provided with a first interface; wherein the first interface is an audio interface for connecting headphones.

[0015] Optionally, the handheld part is further provided with a second interface; wherein, the second interface is used to connect a communication device.

[0016] Optionally, the device also integrates an audio processing module, which is connected to the first microphone and the second microphone respectively. The audio processing module is used to perform high-fidelity optimization processing on the audio signal collected by the first microphone when switching to karaoke mode, and to perform noise reduction and far-field enhancement processing on the audio signal collected by the second microphone when switching to call mode.

[0017] The technical solution of this utility model has at least the following advantages and beneficial effects:

[0018] Breaking away from the limitations of traditional separate microphones for live karaoke and calls, this device integrates live karaoke and voice call functions by connecting a dedicated microphone (primarily for karaoke) and a microphone (primarily for voice calls) via a handheld switch. Users no longer need to manually switch devices or separate their phones from the microphone for calls; a single button allows for quick switching between different usage scenarios, greatly simplifying the process, improving efficiency, and providing a more convenient and seamless user experience.

[0019] To address the issues of poor sound reproduction in traditional karaoke microphones and unclear sound pickup at long distances in ordinary call microphones, we have made specific optimizations. The first microphone is designed specifically for karaoke scenarios, enabling more accurate sound capture and effectively improving sound reproduction to achieve near-professional-grade fidelity, allowing users to deliver higher-quality sound when singing karaoke. The second microphone has been optimized for long-distance sound pickup performance, maintaining clear and stable voice transmission even in multi-person call scenarios, meeting users' high audio quality requirements in various scenarios.

[0020] Users can simply connect a handheld microphone to their mobile phone or live streaming device to meet two core needs (karaoke / live streaming and calls); this avoids the cumbersome method of relying on multiple audio adapter cables and charging cables, and fundamentally solves the problem of audio interruption caused by loose interfaces.

[0021] During live streaming or karaoke, users can switch to clear call mode without interrupting the live stream or putting down the microphone to operate their phones. They can simply press the switch button on the microphone and switch back to karaoke mode after the call ends, achieving a seamless transition. This solves the problem of users having to prepare, switch, and carry multiple devices in different scenarios, simplifies the operation process, and improves ease of use and overall efficiency. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of a handheld microphone with microphone switching function according to an embodiment of the present invention;

[0023] Figure 2 This is a front view schematic diagram of a handheld microphone with microphone switching function according to an embodiment of the present invention;

[0024] Figure 3 This is a right-side view of the structure of a handheld microphone with microphone switching function according to an embodiment of the present invention.

[0025] Figure 4 This is a bottom-view structural diagram of a handheld microphone with microphone switching function according to an embodiment of the present invention;

[0026] Figure 5 for Figure 3 Schematic diagram of the structure in sectional view (AA);

[0027] Icons: 1-Handheld part, 101-Switch key, 102-Switch mute key, 103-First volume key, 104-Second volume key, 105-Indicator component, 2-Audio acquisition part, 201-First microphone, 202-Second microphone, 3-Power supply component, 4-First interface, 5-Second interface. 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 A handheld microphone with microphone switching function includes: a handheld part 1 and an audio acquisition part 2. The audio acquisition part 2 is disposed on the handheld part 1 and has a first microphone 201 and a second microphone 202 built into it. A switching button 101 is provided on the handheld part 1, and both the first microphone 201 and the second microphone 202 are connected to the switching button 101. The first microphone 201 is used for karaoke; the second microphone 202 is used for voice calls. The handheld part 1 constitutes the main grip of the microphone and can be ergonomically cylindrical, conical, or streamlined. The surface can be treated with an anti-slip coating, such as a silicone layer or texture. The handheld part 1 houses necessary components such as circuit boards and batteries. The audio acquisition part 2 is located at the top or front of the handheld part 1. The first microphone 201 can be a large-diaphragm condenser microphone or a high-quality electret microphone, with cardioid polar pattern, mainly picking up sound in front of the microphone and suppressing noise from the sides and rear. The frequency response curve of the first microphone 201 is optimized for human voices (especially singing), emphasizing mid-frequency clarity and high-frequency extension, and possessing high sensitivity to capture delicate sound details. The second microphone 202 can be a small-diaphragm condenser microphone or a MEMS microphone, featuring omnidirectional (picking up 360-degree sound, suitable for groups sitting together) or supercardioid / shotgun directional (picking up sound from a specific direction at a distance). The frequency response curve of the second microphone 202 is optimized for voice communication, with built-in or integrated circuitry to achieve powerful background noise suppression and echo cancellation, ensuring clear speech. The switch button 101 can be a physical button, toggle switch, or touch switch, located on the outer shell of the handheld unit, in a position convenient for the user's thumb or forefinger, and can be located on the side of the handheld unit 1. The switch button 101 is connected to the internal switching module via circuitry. The handheld unit 1 houses a main control circuit board, with the switching module being one of the core functional modules of the main control circuit board. The raw audio signal lines of both the first microphone 201 and the second microphone 202 are connected to the input of the switching module. The switching module selectively routes the signal from one of the microphones to its audio output based on the command of the switching button. When switched to karaoke mode, it outputs the signal from the first microphone; when switched to call mode, it outputs the signal from the second microphone. The main control circuit board also integrates:

[0030] A preamplifier is used to amplify the weak signal from the microphone.

[0031] Analog-to-digital converter (ADC / DAC) for outputting digital signals (USB mode);

[0032] The DSP chip is used to implement reverb, equalization and other sound effects processing in karaoke mode (applied to the first microphone signal), as well as more advanced noise reduction and echo cancellation in call mode (applied to the second microphone signal).

[0033] In use, the user holds the microphone and connects it to their phone / computer via cable. The user presses the switch button 101 to select karaoke mode (or this mode is the default). At this time, the first microphone 201 is activated and picks up sound, while the second microphone 202 is disabled or muted. The signal from the first microphone is processed with appropriate audio effects and then output to the live streaming / karaoke app on the phone / computer via the audio interface. When making or receiving calls or conducting voice conferences, the user can switch to call mode by pressing and holding the switch button 101 for 2 seconds. At this time, the second microphone 202 is activated and picks up sound, while the first microphone 201 is disabled or muted. The signal from the second microphone undergoes powerful noise reduction and echo cancellation processing and is then output to the calling app (such as WeChat, phone, Zoom, etc.) on the phone / computer via the audio interface. Users do not need to manually plug and unplug microphones, change devices, or use complicated adapter cables / Bluetooth pairings between live streaming / singing and calls. One-button physical switching makes operation extremely convenient and efficient, greatly improving the user experience and workflow smoothness.

[0034] In some embodiments, the handheld unit 1 is provided with a storage component containing several karaoke sound effects. The storage component is connected to the first microphone 201 and the switch button 101. The switch button 101 is used to switch between karaoke mode and call mode, as well as to switch karaoke sound effects in karaoke mode. Multiple karaoke sound effects (such as studio, concert, pop, and rock presets) are pre-set in the built-in storage component (such as ROM or Flash storage). Users can short-press the switch button 101 to activate these sound effects in karaoke mode. Users can switch sound effects with one click without additional equipment or software, significantly enriching the karaoke experience and improving sound fidelity and expressiveness (e.g., optimizing mid-frequency clarity and high-frequency extension). This solves the problem of existing karaoke microphones "lacking professional-grade fidelity," enabling amateur users to obtain professional-grade sound quality, enhancing entertainment and user engagement.

[0035] In some embodiments, a mute switch 102 is provided on the handheld part 1; wherein, the mute switch 102 is used to control the on, off, or mute of the first microphone 201 and the second microphone 202. A short press of the mute switch 102 activates mute, and a long press activates on / off. The mute switch 102 provides instant, physical mute / on control. Users can simply press the mute switch 102 when they need to briefly handle personal matters during live streaming (such as coughing or talking to someone), temporarily mute during calls to avoid environmental noise interference, or completely turn off the microphone. There is no need to stop singing, exit the app, unplug or plug cables, or switch device modes, greatly improving operational efficiency and the smoothness of the user experience. The mute / on / off function is purely physical / circuit control, occurring inside the microphone, and is completely independent of the connection status of external cables or Bluetooth signals. Even if the USB cable is slightly loose (as long as it can still supply power and transmit signals) or the Bluetooth connection is temporarily unstable, users can still reliably control the microphone's on / off state using the mute button 102, avoiding the embarrassment or accidental sound pickup caused by external connection problems preventing microphone control. In professional live streaming, recording, or conference scenarios, temporary mute is a frequent and critical need (such as clearing one's throat, private communication, and preventing background noise leakage). A dedicated physical mute button allows users to perform this operation quickly, intuitively, and reliably, without having to search for virtual buttons in the software interface or rely on complex key combinations, making it more professional and user-friendly.

[0036] In some embodiments, the handheld part 1 is provided with volume adjustment keys; wherein, the volume adjustment keys are used to adjust the volume of the first microphone 201 and the second microphone 202. The volume adjustment keys, through a physical button design (such as a knob or button), allow users to directly adjust the output volume of the first microphone (karaoke mode) and the second microphone (call mode) on the microphone body in real time, without relying on external devices (such as mobile APP, computer software) or additional cables. This significantly improves the convenience and efficiency of operation: during live karaoke or voice calls, users can quickly adjust the volume with one click, avoiding interruptions caused by switching application interfaces, plugging and unplugging cables, or dealing with Bluetooth connection problems. Especially in high-frequency scenarios (such as needing to dynamically adjust the volume of the voice according to the song during live broadcasts, or needing to adapt to environmental noise during calls), it greatly saves time and optimizes the workflow. At the same time, the volume adjustment is completed in the internal circuit of the microphone (gain control is achieved through the preamplifier or DSP chip of the main control circuit board), which does not depend on the external connection status (such as a loose USB cable or Bluetooth signal fluctuations), ensuring the reliability and stability of the adjustment.

[0037] In some embodiments, the volume control keys include a first volume key 103 and a second volume key 104; wherein the first volume key 103 is used to control the volume increase; and the second volume key 104 is used to control the volume decrease. The two independent keys (increase / decrease) clearly correspond to a single function, eliminating the need for users to memorize key combinations or cycle through different logics; the operation intent is completely consistent with the key functions. The volume control function operates simultaneously on the first microphone (karaoke mode) and the second microphone (call mode). Whether performing live singing or holding a voice conference, users can use the same set of intuitive physical keys for volume management without needing to learn the control logic of different modes.

[0038] In some embodiments, the handheld part 1 is provided with an indicator component 105; wherein, the indicator component 105 is used to indicate the current working status of the first microphone 201 and the second microphone 202. The indicator component 105 (such as an LED indicator) displays the current working mode instantly and intuitively through visual signals (e.g., blue represents karaoke mode / first microphone active, green represents call mode / second microphone active, and red represents mute). The user can clearly know at a glance which working state the microphone is in (karaoke or call), avoiding the problem of degraded sound quality due to misuse of the call microphone during live broadcast, or excessive noise or sound interference due to misuse of the karaoke microphone during a call, significantly improving the accuracy and reliability of operation.

[0039] In some embodiments, the handheld unit 1 has a built-in power supply component 3, which is connected to the first microphone 201 and the second microphone 202. The power supply component 3 provides power to various electrical components. The first microphone (e.g., a large-diaphragm condenser microphone), the second microphone, the DSP chip (for sound processing, advanced noise reduction / echo cancellation), LED indicators, etc., all require stable power. The built-in power supply (e.g., a lithium battery) provides sufficient and continuous power, ensuring that these high-performance components perform optimally in their respective modes (especially the high-sensitivity karaoke mode and the complex DSP-processed call mode). The built-in power management circuit provides a clean and stable voltage, reducing noise introduced by external power supply (e.g., USB port voltage fluctuations), which helps improve sound signal quality.

[0040] In some embodiments, the handheld part 1 is further provided with a first interface 4; wherein, the first interface 4 is an audio interface for connecting headphones. The first interface 4 can be a 3.5mm audio interface. Through the headphone interface, the user can directly plug wired headphones into the microphone body. The sound signal processed internally by the microphone (karaoke mode: vocals + sound effects; call mode: clear voice) and the accompaniment / other party's voice transmitted from the mobile phone / computer can be mixed and sent to the user's ears with zero latency. This achieves professional-grade real-time monitoring (Zero-Latency Monitoring), greatly improving the accuracy of singing, the professionalism of live streaming, and the immersive experience, and solving the latency and interference problems caused by relying on external devices. After plugging in the headphones, the call voice (the other party's voice) is directly sent to the user's ears, avoiding sound leakage and protecting call privacy. At the same time, the user can hear the other party speaking through the headphones without being disturbed by environmental noise, and hear more clearly. More importantly, this avoids the speaker sound being picked up by the second microphone to form an echo, making the microphone's built-in echo cancellation algorithm more effective and significantly improving the clarity of both parties in the call.

[0041] In some embodiments, the handheld part 1 is also provided with a second interface 5, which is used to connect a communication device. The second interface (such as Type-C or Lightning) is directly integrated into the microphone body, enabling direct connection to the communication device (mobile phone / computer) with a single cable. Users only need to connect the microphone to the device with a single cable, completely eliminating the need for additional adapter cables and the risks of loosening and poor contact that they bring, making the connection more reliable and the operation simpler. Through the physical wired connection (second interface), near-zero latency audio signal transmission is achieved, perfectly meeting the requirements of real-time monitoring for karaoke and the requirements of synchronization for calls. At the same time, connection stability is fundamentally guaranteed, avoiding the embarrassment of pairing failure or disconnection, and power consumption is significantly lower than that of Bluetooth connection.

[0042] In some embodiments, an audio processing module is also integrated, which is connected to the first microphone 201 and the second microphone 202 respectively. The audio processing module performs high-fidelity optimization processing on the audio signal collected by the first microphone 201 when switching to karaoke mode, and performs noise reduction and far-field enhancement processing on the audio signal collected by the second microphone 202 when switching to call mode. High-fidelity optimization processing, such as precise equalization adjustment, harmonic enhancement, and dynamic range control, directly solves the core problem in existing technologies where "traditional karaoke microphones, while achieving basic sound pickup, lack sufficient sound reproduction and professional-grade fidelity." This significantly improves the clarity, detail, warmth, and overall professionalism of the singing sound, providing users with an experience close to that of a recording studio. Noise reduction and far-field enhancement processing, such as advanced background noise suppression, echo cancellation, beamforming, and gain control, effectively solves the problem in existing technologies where "ordinary call microphones experience a sharp drop in clarity at long distances, failing to meet the needs of multi-person call scenarios." This ensures that the user's voice remains clear and audible even in complex environments (such as multi-person meetings, long distances, and noisy environments).

Claims

1. A handheld microphone with microphone switching function, characterized in that, include: The handheld part (1) and the audio acquisition part (2) are provided. The audio acquisition part (2) is disposed on the handheld part (1). The audio acquisition part (2) has a first microphone (201) and a second microphone (202) built in it. The handheld part (1) is provided with a switch key (101). The first microphone (201) and the second microphone (202) are both connected to the switch key (101). The first microphone (201) is used for karaoke; the second microphone (202) is used for voice calls.

2. The handheld microphone with microphone switching function as described in claim 1, characterized in that, The handheld part (1) is provided with a storage component, which has a number of karaoke sound effects built in. The storage component is connected to the first microphone (201) and the switch key (101) respectively. The switch key (101) is used to switch between karaoke mode and call mode, as well as to switch karaoke sound effects in karaoke mode.

3. The handheld microphone with microphone switching function as described in claim 1, characterized in that, The handheld part (1) is provided with a switch mute button (102); wherein the switch mute button (102) is used to control the first microphone (201) and the second microphone (202) to be turned on, turned off or mute.

4. The handheld microphone with microphone switching function as described in claim 1, characterized in that, The handheld part (1) is provided with a volume adjustment key; wherein the volume adjustment key is used to adjust the volume of the first microphone (201) and the second microphone (202).

5. The handheld microphone with microphone switching function as described in claim 4, characterized in that, The volume control keys include a first volume key (103) and a second volume key (104); wherein the first volume key (103) is used to control the volume to increase; and the second volume key (104) is used to control the volume to decrease.

6. The handheld microphone with microphone switching function as described in claim 1, characterized in that, The handheld part (1) is provided with an indicator component (105); wherein the indicator component (105) is used to indicate the current working status of the first microphone (201) and the second microphone (202).

7. The handheld microphone with microphone switching function as described in claim 1, characterized in that, The handheld part (1) has a built-in power supply assembly (3), which is connected to the first microphone (201) and the second microphone (202); wherein the power supply assembly (3) is used to provide power to each electrical component.

8. The handheld microphone with microphone switching function as described in claim 1, characterized in that, The handheld part (1) is also provided with a first interface (4); wherein the first interface (4) is an audio interface for connecting headphones.

9. The handheld microphone with microphone switching function as described in claim 1, characterized in that, The handheld part (1) is also provided with a second interface (5); wherein, the second interface (5) is used to connect to a communication device.

10. The handheld microphone with microphone switching function as described in claim 1, characterized in that, It also integrates an audio processing module, which is connected to the first microphone (201) and the second microphone (202) respectively. The audio processing module is used to perform high-fidelity optimization processing on the audio signal collected by the first microphone (201) when switching to karaoke mode, and to perform noise reduction and far-field enhancement processing on the audio signal collected by the second microphone (202) when switching to call mode.

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