Blackmagic Atem SDI

The compact Blackmagic ATEM SDI is designed for multi-camera live streaming to the Internet or for broadcast applications.
The Blackmagic ATEM SDI is a live production switcher with four 3G-SDI inputs and an integrated control panel. The four SDI inputs are capable of 1080p60 video. Two 3G-SDI outputs are useful for a projector or external monitor, a USB Type-C output for streaming video up to 1080p60 to a computer and an RJ45, 10/100 Ethernet port for live streaming, system management, control over the network and upgrades.

The control surface features easy-to-read backlit control buttons that allow you to select camera inputs, transitions, keyers, settings and the DVE. The Blackmagic ATEM SDI features upstream and downstream keyers, an advanced chroma keyer, two linear/luma keyers, a DVE transition keyer, a pattern generator and two color generators. There is also media player support for fill and key images, which supports up to 20 photos in PNG, TGA, BMP, JPEG and TIFF formats. The SDI output supports a minimum resolution of 1366 x 768 for monitoring your stream. It also supports the ATEM Software Control Panel via Ethernet, and it supports control and configuration using the ATEM SDI.

transitions

Available transitions include:

Cut: When you press the Cut button, the Blackmagic ATEM SDI immediately switches from your current Program source to the Preview source. Cuts can be performed by selecting sources directly or by pressing the Cut button to move to the next source.

Mix: The Mix, or Dissolve, gradually transitions from one source to another by making a soft transition. You can set a custom duration to blend the transition manually.

Dip: Similar to mix transitions, a dip transition is a smooth blend that contains a solid color, image, or other clip between the two video sources. Dips to black or white between sources are most commonly used. You can also use logos or sponsor images.

Wipe: Built-in swipe patterns include circles, diamonds, squares, and more. Shapes and patterns can be inverted or softened and can even have custom colored edges.

DVE: With the powerful built-in Digital Video Effects processor, or DVE, you can push, rotate, pinch or swoosh your live video from one camera to another with incredible built-in transitions. DVE transitions can be flipped and reversed, giving you even more transition options.

Upstream Keyer

Layer live video over other video sources or images with the Upstream Keyer. You can use the luma-key, linear key, pattern key or take a green screen as the background and use chroma-key to place the foreground video directly over virtual sets.

Luma-key: Luma-keys work best with high-contrast images, such as white elements on a black background, so you can use the contrast to cut out the black background and replace it with live video or images.

Linear Key: Get great results with linear keying by using two separate sources for the Fill and Key to create a single video image. The Fill signal contains the video to overlay the background, while the Key signal contains a grayscale mask to crop or mask the area to be filled.

Chroma Key: Chroma Keys are used every day for the weather forecast on TV and are a powerful way to combine live images in real time. The presenter usually faces a green or blue background, and the chroma keyer removes only that color and combines it with another image, such as a video or image.

Pattern Key: Combine live images with one of the built-in Wipe patterns to give live images or images geometric shapes. You have full control over softness, symmetry, size and position to create unique picture-in-picture effects that can be transferred as easily as any live source.

Downstream Keyer

The ATEM SDI switcher includes one downstream keyer, so you can add images such as logos, bugs and titles from the built-in media player. Downstream keyers work from top to bottom, so they cover all the video switched to the program output.

audio mixer

The built-in audio mixer allows you to accurately adjust the levels and balance of both cameras and external audio on all six embedded audio inputs and the two audio input channels. The mixer features selectable On/Off/Audio-Follow-Video per channel, plus separate gain control per channel, level and peak measurement, and new Fairlight audio enhancements such as compressor, gate, limiter, six-band parametric EQ and master gain control.

media player

You don't need an external media player for graphics files. The Blackmagic ATEM SDI allows you to store up to 20 broadcast quality RGBA graphics files in the media pool. The media player is available as an input source for your switcher. You can display images as full-frame video, or send them to the keyers as an overlay for your video. Popular image formats such as PNG, TGA, BMP, GIF, JPEG and TIFF are supported.