Follow us on Twitter | 日本語
Kulabyte XStream Live

Deliver the best live video quality in the world
with Kulabyte XStream Live!

XStream Live 2 is a real-time streaming software solution designed for professional live event production and media publishing. Easily broadcast your HD-SDI, SDI, and analog sources while providing the highest possible quality H.264 streams to the internet, using the largest global penetration of playback devices and browsers that support Flash Player 9 and 10.

Utilizing proprietary encoding technology, XStream Live 2 provides significantly higher live HD/SD Flash video quality than any other encoder on the market, while maintaining a more bit-rate compliant stream. The result is that, bit for bit, XStream Live 2 delivers the highest quality Flash video and audio streams in the industry. It provides you the maximum functionality with an easy-to-use graphic interface.

How it works

Key Features


Streams live video to users with Flash Player 9 or 10 (H.264 / AAC stereo audio) at arbitrary bit-rates. Proprietary two-pass encoding technology allows distributing high-definition video (720p, 30fps, stereo audio) at only 1.8Mbps.

Video Input

Accepts standard definition (525i, 29.97fps and 625i, 25fps) and high-definition (up to 1080i, 50fps) video formats as well as HD-SDI, SDI or analog inputs via supported capture devices. Please contact us to get more detailed information.

Video Output

Supports up to 1280x720 output resolution (720p high-definition) and AAC stereo audio. Delivers up to four stream simultaneously at different bit-rates that can be used for adaptive streaming.

Worldwide Distribution

Supports media distribution with Adobe Flash Media Server 3 or 3.5, and Wowza Media Server Pro. Supports generic content delivery networks such as Akamai and Limelight Networks.


The software supports de-interlacing, cropping and scaling of video inputs as well as frame rate conversions with little or no delays.

Recommended Hardware

Requires Quad Core Intel or AMD processor (2.4 GHz or higher), 2GB physical memory and an additional hardware video capture device (1394 DV cameras, AJA Xena or Blackmagic DeckLink).