EVS XT2 - Video Codecs & Bitrates; Recording Capacity for XT[2] Servers

XT Series DISK RECORDER – Version 9 - Hardware Technical ReferenceIssue 5.00
EVS Broadcast Equipment SA – April 2008
8
Audio Processing
• uncompressed audio
• 24 bit processing and storage
• sample rate converter from 25-55 kHz to 48KHz
• audio scrub
• audio mix
1.5.3 VIDEO CODECS & BITRATES
The EVS XT[2] server uses an intra-frame video encoding technique. The
XT[2] server supports natively the following video codecs:
• MJPEG (SD & HD)
• IMX (SD only)
• Avid DNxHD® (HD only, code-protected)
• Intra-field MPEG-2 (SD & HD)
• Apple ProRes 422 (HD only, code-protected)
The target bitrate of the encoded video stream can be set by the user
within the accepted range: 8 to 100Mbps for standard definition, 40 to
250Mbps for high definition with the exception of Apple ProRes and Avid
DNxHD® working with defined bitrates.
The default values are MJPEG 30Mbps for standard definition and MJPEG
100Mbps for high definition.
1.5.4 RECORDING CAPACITY FOR XT[2] SERVERS
The following tables show the record duration for 1 record channel (i.e. 1
video + 2 stereo audio tracks in SD ; 1 video + 4 stereo audio tracks in
HD) with arrays of 73GB, 146GB or 300GB disks compared with the
different video bitrates & codecs. These tables are valid with the
“Operational Disk Size” parameter set to 100%.