Review: Roland V-02HD Multi-Format Video Mixer

作为一名现场直播总监, I’m always on the lookout for new 设备 that can make reliable live event production simpler. As an avid user of Roland’s V-60HD and V-1SDI video switchers, I’ve already become familiar with common configurations and settings. 这些都是很棒的转换者, there are occasions when I need only a couple of inputs on the video switcher or when I’m working in extremely tight quarters for a boardroom presentation.

全新的，非常紧凑的罗兰V-02HD (图1) can likely fulfill all your requirements in such situations. The V-02HD (retail price USD $595) can be used to mix multiple sources for live event streaming and/or to output audio/video to in-house projection systems.

图1. 罗兰V-02HD俯视图

最基本的

The Roland V-02HD is designed to work with HDMI inputs and outputs. While I’d much prefer to keep the signal chain over SDI inputs and outputs, it’s understandable why Roland designed this switcher with HDMI connections, 许多数码相机, 设备, 投影仪可以用这个标准工作. Like other Roland switchers, the unit uses 4:4:4 (Y/Pb/Pr) color space with 10-bit Video Processing. The V-02 HD can accept two HDMI inputs, and provides two programmable HDMI outputs (图2). All HDMI inputs and outputs on the V-02HD have built-in scalers, enabling you to work with a wide range of video frame sizes and frame rates, and output to a common standard such as 1080i59.94或1080p59.94.

图2. 罗兰V-02HD的连接

不像我用过的其他罗兰转换器, the V-02HD’s HDMI outputs can be configured to use projector resolution standards, 比如XGA, 并且WXGA, 和宽屏, 举几个例子.

You can operate the V-02HD with any of the physical controls available on the unit, from mixing between HDMI inputs with the button transitions or fader bar to enabling transition type, PiP(图中图), 或DSK(下行键控器). 你也可以使用Boss FS-6脚踏板(图3) to control your transitions between your two HDMI inputs, freeing you to control camera movements and direct the live output with the foot pedal. You can buy the foot pedal separately or as a bundled product with the V-02HD. As the connection with the foot pedal is a standard 1/4” audio cable, you can position the foot pedal near your camera and tripod while the controlling the V-02HD located elsewhere in the room.

图3. Boss FS-6脚踏板

根据Rev 1.10 firmware for the V-02HD switcher, you can operate the switcher via an iPad connected over USB. 罗兰V-02HD远程应用程序(图4)可以从苹果应用商店免费下载. I used the Apple Lightning to USB3 Camera adapter to connect a USB Type B cable between my iPad Pro and the V-02HD. iPad应用程序, you can control settings much more quickly than using the OSD (On Screen Display) menu over the Preview HDMI port. You also have access to more finely tuned audio settings for each HDMI input and output as well as the analog audio Line In source.

图4. 罗兰V-02HD远程应用程序(iPad)

You can store a still image in the memory of the V-02HD, to use with DSK features or as a fade in/out graphic. To load a still image, use a computer input on one of the HDMI inputs of the V-02HD. Make sure the computer is displaying the image in full-screen mode on the connected computer, and use the OSD menu controls to freeze the image from that HDMI input to the still image store. Note that you can store any frame from either HDMI input of the V-02HD.

不像昂贵的罗兰切换器, the V-02HD actually has some incredible visual effects features, 在顶部控件上标记为“VFX”. 零件镶嵌特性, 例如, can be used to pixelate a specific area of the video frame, such as the face of an individual in an interview to hide one’s identity. V-02HD也有音频效果处理, 为面试调整情商, 有风的环境, 环境音频.

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