PIX 220i, 240i, 220, 240 User Guide and Technical Information
v. 3.01
Features and specifications are subject to change. Visit www.sounddevices.com for the latest documentation.
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Selecting File Resolution and Frame Rate
The PIX recorders can record video in numerous resolutions and frame rates. The Setup Menu op-
tion
Video
File Resolution/Rate
sets the resolution and frame rate of recorded Quicktime iles.
This Setup Menu option also determines the resolution and frame rate of the live HDMI and SDI
outputs signals, except during playback. The PIX recorder can record Quicktime iles in the follow
-
ing resolutions and frame rates:
• 1080 p30
• 1080 p29.97
• 1080 p25
• 1080 p24
• 1080 p23.976
• 1080 i60
• 1080 i59.94
• 1080 i50
• 1080 PsF 30
• 1080 PsF 29.97
• 1080 PsF 25
• 1080 PsF 24
• 1080 PsF 23.976
• 720 p60
• 720 p59.94
• 720 p50
• 720 p30
• 720 p29.97
• 720 p25
• 720 p24
• 720 p23.976
• 576i50 *
• 480i59.94 *
When Setup Menu option
Video
File Resolution/Rate
is set to
Same as Video Input
, recorded
Quicktime iles and HDMI and SDI output signals will be of the same resolution and frame rate as
the input video signal.
* Standard deinition recording is only available for ProRes 422 HQ, ProRes 422, and ProRes 422 Proxy.
Progressive Segmented Frames (PsF)
Some cameras output video signal in progressive segmented frames (PsF). PsF is a method for
transmiting progressive video in an interlaced stream. A device generates PsF signal by spliting
each frame into two segments. PsF segments are the same as interlaced ields in that one segment
represents the even lines of a frame and the other segment represents the odd lines of a frame. PsF
segments difer from interlaced ields in that there is no motion between each segment in a pair.
The PIX will automatically sense PsF signal from most cameras that output PsF over SDI. This is
accomplished through the use a lag inserted into the SDI signal by the camera. If a camera does not
insert this lag into the SDI stream or if it outputs PsF signal over HDMI, then the PIX seting
Video
Input PsF Detect
can be set to
Interpret 1080i as PsF
. This will force the PIX to treat all 1080i
signal as if it were PsF and deinterlace it accordingly.
Selecting a Video Codec
Setup Menu option:
Video
Codec
.
PIX has two families of intra-frame, DCT based codecs available: Apple ProRes and Avid DNxHD,
with four levels of data compression available for each. Both codecs are intermediate codecs that
assist the editing process by eliminating the need to transcode video before importing into Final Cut
(ProRes) or Avid (ProRes or DNxHD).
ProRes is a variable data rate codec; DNxHD is a ixed data rate codec. PIX recorders support all
compression levels and bit rates of DNxHD and ProRes and automatically record the correct bit rate
dependent upon the video input resolutions and frame rate. The data rates indicated in the Setup
Menu item
Video
Codec
indicate the maximum data rate at 1080p30.
DNxHD 36 Mb/s only supports 1080p signal. Standard deinition recording is only available for ProRes
422 HQ, ProRes 422, and ProRes 422 Proxy.
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