回顾:Sling Media SlingStudio

With the explosion that mobile live broadcasting has seen in the consumer and professional space within recent years, it’s getting harder for companies to distinguish themselves from everyone else. Live streaming apps abound for seemingly every possible niche. 还有面向游戏玩家的Twitch, Twitter and Facebook for social connections, 还有YouTube.

Most of these streamers are all using the same general device to stream: a smartphone. While smartphones are very capable for most wannabe streamers, they don’t quite cut the mustard for pros. 直到最近, going from a single-smartphone stream to a multi-camera broadcast was a huge leap in cost and complexity. At the 2017 NAB show in Las Vegas, DISH Network-owned Sling Media introduced the SlingStudio, a professional multi-camera streaming/switching appliance. At $999, it competes with a number of existing pro-grade products from the likes of Teradek, LiveU和Matrox.

I was given a chance to review one of the first units available from Sling. The review kit included the following:

•SlingStudio单元(1)
•外部硬盘驱动器(1)
•SlingStudio CameraLink (2)
•SD卡(1张)
•SlingStudio USB-C扩展器(1)
• 3.5mm音频线(1根)
•SlingStudio电池(1个)
•Magnus三脚架(2)
•iPhone 6s+ (1)
•iPad Pro (1)
•Manfrotto三脚架(1)
•Manfrotto智能手机支架(1)

In addition to this, I received two Canon Vixia HF G20 1080p cameras. 在我收到装备后不久, I was given the opportunity to shoot and stream an outdoor concert with performers Kelle Jolly and Will Boyd. With that in mind, I began exploring the gear and building my kit to test everything beforehand.

主要单位

SlingStudio单元(下面的图1) is about the size of a standard hardcover book, housed in durable white plastic. The optional battery pack enables the unit to run wire-free for a few hours depending on usage.

图1. SlingStudio单位

One end of the unit is home to the power button, indicator lights, and SD card slot for recording. The opposite side houses a number of ports: audio line in, USB-C, HDMI输出, HDMI输入和外接电源. The unit can use either a connected portable hard drive (by way of the USB-C port) or the SD card slot to record your broadcast. HDMI in allows for a wired camera source while HDMI输出 allows use of a local monitor of the program feed. 图2(下图) shows a diagram of a possible SlingStudio setup with compatible devices. (你可以看到一个 list of devices certified for use with the product here.)

图2. A SlingStudio live production schematic

设置

Setting up the unit is incredibly simple and easy. Power on the unit and wait for the large indicator strip along the top to glow solid blue. This means the unit is powered up and has created its own wireless access point. Grab the iPad that you’ll use to control your broadcast and connect it to the SlingStudio wireless 网work now available. Download and launch the SlingStudio Console app and connect the SlingStudio to your inter网-connected wireless 网work.

这可能听起来令人困惑, but essentially you’re connecting the iPad directly to the SlingStudio and then pointing the SlingStudio to an inter网 connection for live broadcast. You’re now ready to connect camera sources and begin broadcasting.

使用SlingStudio的HDMI输入, you can use any of a number of professional cameras along with multiple smartphones (iOS and some Android phones are supported) to begin a multi-camera production. 如果你想完全无线化, you can purchase CameraLink units which convert HDMI video and audio into a wireless signal that connects up to the Console app. The CameraLink connected cameras can be up to 300 feet away from the SlingStudio.