Review: Roland VR-3 All-In-One A/V Mixer—UPDATED!

更新: 在这篇文章最初发表之后, I learned that I could pair Adobe FLME with USTREAM by following 这些指令. Adding Adobe FLME is one solution for webcasting widescreen video from the Roland VR-3. 另一个我将在新的章节中讨论 流式VR-3输出与USTREAM编码器.

The Roland VR-3 is an extremely portable all-in-one audio and video mixer. 在我的大型多摄像机网络直播中, 设备清单, 接线图, 而且设置可能非常复杂. A half-day setup is almost always required and I always need a dolly to transport my many equipment cases from my production van to the site.

Roland VR-3 AV混音器

This is fine for large conference center events and where your status as an on-site technician (and billings) are determined by how much gear you set up on the tech table, but there are many situations where you need an all-in-one device for space reasons. The Roland VR-3 is tiny; although not as thin, it has the footprint of a MacBook Air. What makes it so impressive is that is has a similar price and specs as Roland’s LVS-400 4-channel video mixer but adds functionality that would otherwise require the following devices that are increasingly required on most shoots that involve any or all of multiple audio sources, ppt或电脑演示, 和网路广播:

• 10声道混音器
• 音频延迟箱
• 扫描变换器
• 模拟视频到数字USB转换器

音频功能

Roland has a reputation for developing professional-grade audio products, VR-3也受益于这种音频传承. The VR-3 has audio sliders for the four combination XLR/1/4" TRS inputs and knobs for gain, EQ, 和潘. 48v phantom is also available for condenser microphones and, unlike many boards where phantom power is all or none, VR-3允许你给输入1分配48v & 2和/或3 & 4. The RCA stereo input levels on channels 5+6 are controlled with a knob, 7+8也是, 立体声迷你电脑输入. 最后, the VR-3 even has a pair of internal microphones for ambient audio that bring the number of audio channels on the VR-3 to 10.

My biggest audio problem when webcasting is the need for at least two audio outputs with independent level controls. The VR-3 solves this problem with a USB audio control knob so that you can adjust the audio level on your webcast independently from the output from the RCA and 1/4" outputs, 两个都是现场直播.

Another nice touch is a pair of headphone jacks, in mini and 1/4" sizes. There is nothing worse than having to search for an audio adapter at the last minute, so having jacks in both sizes means one less set of adapters to worry about. Roland has even added an audio level meter with 5 lights, 12 db分开, 用于音频级别的视觉表示.

罗兰VR-3的A/V I/O选项