产品名称：彩色音视频切换台/导播台/直播台

(Product name: Color audio and video switching station/guide station/live station.)

直切型，无特技。具有4路音视频输入，多个四分屏监看输出，多个主画面输出接口，可以接两个大屏幕或投影。具有极高的性价比.高速数字处理器，图像清晰实时稳定。内置帧同步器，切换平滑过度，不跳动、闪屏、黑屏，切换发生在场的逆程期间，不夹帧、不截屏。四分屏影像监看输出，可节省多台预览屏幕，四分屏同时具有TALLY指示。

(Straight cut type, no special effects. With 4 channels of audio and video input, multiple four-screen monitor output, multiple main screen output interface, can be connected to two large screen or projection. It has a very high cost performance. High speed digital processor, image clear real-time stability. Built-in frame synchronizer, smooth transition over, no jumping, flash screen, black screen, no frame clip, no screenshot during the reverse process when the switch occurs. Four split screen image monitor output, saving multiple preview screens, four split screen with TALLY indicator.)

产品特点(Product features)：    

1.专业切换台外壳设计，摆放便利，操作简单，功能实用，超高性价比。(Professional switch table shell design, convenient placement, simple operation, practical function, ultra-high cost performance.) 

2.4路音视频信号同时输入，2路音频输出，3路预监视四画面输出，3路主会场单画面输出。输出有VGA和BNC接口，便于外接显示设备或录像设备，便于后期视频制作。 (4 Simultaneous input of audio and video signals, 2 channels for audio output, 3 channels for pre-monitoring and four screen output, and 3 channels for single screen output of the main venue. The output has VGA and BNC interface, which is convenient for external display equipment or video equipment, convenient for post-video production.)   

3.两组画中画组合输出：每组画中画模式中的大小画面可互相切换，实现特写功能，非常实用和个性。(Output of two groups of picture-in-picture combination: The size of the picture in each group of picture-in-picture mode can be switched to each other to achieve close-up function, which is very practical and personalized.)    

4.视频切换采取硬切换，无特技，无淡出功能，具有极高的性价比，媲美万元级切换设备。(Video switching adopts hard switching, no special effects, no fade out function, with high cost performance, comparable to ten thousand yuan switching equipment.)    

5.高速数字处理器，图像清晰实时稳定。(High-speed digital processor, image clear real-time stability.) 

6.内置帧同步器，切换平滑过度，不跳动、闪屏、黑屏。(Built-in frame synchronizer, smooth transition, no jumping, flash screen, black screen.)

7.切换发生在场的逆程期间，不夹帧、不截屏。(No frame clip or screen shot during the reverse process when the switch occurs.)

8.可单独调整每路的色彩、亮度、对比度、锐度等。(Color, brightness, contrast and sharpness of each channel can be adjusted separately.)    

9.PAL/NTSC两种制式可选择。(Two PAL/NTSC systems are available.)    

10.采用DC 5V电源，方便户外使用。(DC 5V power supply is adopted, which is convenient for outdoor use.)