1 About Streambox Chroma
The Streambox® Chroma Encoder/Decoder is a rack-mountable Audio/Video Encoder and Decoder solution for
secure, low-latency video transport that is required for studio and post-production workflows, video backhaul,
or multi-campus video distribution. The Encoder and Decoder applications run on a Linux operating system
and support optional AES 128-bit encryption (and AES 256-bit encryption with restrictions), LDMP multipath
transport, and ACT-L5 and -L3 Advanced Profile compression, all together providing a secure, high quality
video transport with low latency and wide color fidelity.
With optional hardware and software upgrades, Chroma can utilize such features as 4:4:4 12-bit Color depth,
Rec.709, Rec.2020, DCI-P3, XYZ and RGB color spaces, and 2K/4K video, with support for HDR and HFR video,
as well as up to 16 channels of PCM audio.
Codecs
Chroma utilizes two proprietary video codecs, ACT-L3 and ACT-L5.
Streambox’s ACT-L3 codec, an advanced video compression technology optimized for interlaced and
progressive video and display systems, which ensures compatibility with other Streambox products including
Standard Definition (SD) products. Chroma also offers Streambox ACT-L5 codec that allows the streaming of
much higher quality video than is available on other platforms. Both codecs provide higher quality in 4K, UHD,
2K, HD and SD, at a much lower data rate than MPEG and H.264 compression. Both codecs are adaptable to
user-selectable data rate requirements with constant bit rate and variable bit rate modes.
The robust family of Streambox video transport solutions features innovative error correction and bandwidth
shaping technologies which manage, control, and mitigate packet loss and correct irregularities common to
video delivery over packet-based networks.
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