Wireless USB microphone solution

Wireless USB microphone solutionThis solution is composed of a transmitter module and a USB microphone receiver module. The transmitter module can be connected to microphones and audio signals. The re

  • Model: Wireless USB microphone solution

Wireless USB microphone solution


Wireless USB microphone solution




This solution is composed of a transmitter module and a USB microphone receiver module. The transmitter module can be connected to microphones and audio signals. The receiver module uses audio data stream communication with mobile devices such as computers or tablets, which can improve the signal-to-noise ratio and lossless transmission. This program can be applied to scenes such as network K song, musical instrument computer recording, teaching speech amplification and recording, voice recognition, and voice-to-text.


  • 自动分配信道

    预置信道数14个,一发多收,多套同时使用

  • 采样率可选

    采样频率:8KHz、16KHz、32kHz、44.1KHz;分辨率:16bit

  • 音频算法

    采用A-LAW

  • 通信协议

    采用A-FFC

  • 传输距离

    无线传输距离空旷地带 50米以上

  • 信道切换跟随

    发射切换信道,接收自动跟随

  • 自动静音

    信道质量不好,误码率高时

  • 抗干扰强

    音频传输采用数字化处理



规格项目音频发射模块音频接收模块

供电电压

3.3V-5V

3.3V-5V

消耗电流

<80mA

<50mA

工作温度

0 ~ +70 ℃

0 ~ +70 ℃

频率范围

2400~2483.5MHz

2400~2483.5MHz

信道数目

14

14

调制方式

GFSK

GFSK

发射功率

15dBM


接收灵敏度


-85dBm(Min.)

输出阻抗


10K

输出电平


2.5Vp-p(Max)

音频时延

<5ms

<5ms

动态范围@1kHz

81dB

81dB

失真度THD

0.1%

0.1%



  • Bluetooth speaker customization, gift Bluetooth speaker, multi-functional Bluetooth speaker, outdoor Bluetooth audio, waterproof Bluetooth speaker, Bluetooth speaker factory

    配对

    只需发射与接收第一次使用时配对一次,往后开机即可使用

  • Bluetooth speaker customization, gift Bluetooth speaker, multi-functional Bluetooth speaker, outdoor Bluetooth audio, waterproof Bluetooth speaker, Bluetooth speaker factory

    切换信道

    无线传输受到干扰时可以无缝切换信道

  • Bluetooth speaker customization, gift Bluetooth speaker, multi-functional Bluetooth speaker, outdoor Bluetooth audio, waterproof Bluetooth speaker, Bluetooth speaker factory

    USB键盘鼠标

    内置键盘鼠标的功能,免驱设计

  • Bluetooth speaker customization, gift Bluetooth speaker, multi-functional Bluetooth speaker, outdoor Bluetooth audio, waterproof Bluetooth speaker, Bluetooth speaker factory

    USB麦克风

    采样率 8K 16K 32K可选,免驱设计

  • Bluetooth speaker customization, gift Bluetooth speaker, multi-functional Bluetooth speaker, outdoor Bluetooth audio, waterproof Bluetooth speaker, Bluetooth speaker factory

    静音

    本系统具有静音控制功能

  • Bluetooth speaker customization, gift Bluetooth speaker, multi-functional Bluetooth speaker, outdoor Bluetooth audio, waterproof Bluetooth speaker, Bluetooth speaker factory

    音量调整

    发射模块的前置放大可调,最大可放大 50dB