Gemini 4:4:4 User Manual
021313
www.Gemini444.com
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P a g e
Firmware Version 1.1.2
Version 1.1.2 Features, 25-May-12
Added “Camera” Record Trigger ( Record > Trigger > Camera ). This enables compatible cameras
to send Record Start and Record Stop signals to the Gemini via the camera’s menu.
Added support for 1080p29.97 and 1080p30 4:4:4 10-bit DPX recording. Recording is split (RAIDED)
across two SSD’s (due to the high data rate), recorded at the full frame rate. The “Odd” numbered
files are placed on SSD1 and the “even” numbered files are placed on SSD2. Any audio is placed on
SSD2. Playback is from the two SSD’s at the full frame rate. Before editing, combine the two sets of
files into a single folder when copying onto a computer to obtain the entire clip in a single,
descending file format folder.
Added support for 1080p50/59.94/60 4:4:4 10-bit DPX recording. Recording is split (RAIDED) across
two SSD’s (due to the high data rate), recorded at the full frame rate. The “odd” numbered files are
placed on SSSD1 and the “eve” numbered files are placed on SSD2. Any audio is placed on SSD2.
Playback is either combined from both SSD’s at half speed (by choosing the “RAID” checkbox in the
Playlist) with no audio, or played as just the “even” frames (SSD2, with audio) or “odd” frames
(SSD1, no audio) at regular speed. Before editing, combine the two sets of files into a single folder
when copying onto a computer, to obtain the entire clip in a single folder. (For 1080p59.94/60 two
512 GB SSD’s required.)
Due to the high data rate of 1080p59.94/60 DPX files, the DPX data is stored as “packed”. To
un=pack the data (required for compatibility with most computer software), use our free un-
packing tool, Gemini Transfer, available on our website on the Downloads page. All other DPX
formats are recorded as un-packed on the Gemini, and are directly accepted by all DPX compatible
software. Both packed and un-packed DPX data retain full quality.
Convergent Design has received formal ARRI Certification, and added support for ARRIRAW
recording and playback for ALEXA Series cameras (16:9). Support includes:
o
Recording ARRIRAW progressive video formats at p23.98/24/25/29.97/30 (.ari) to single
SSD (frame counter for files is based on the timecode), 2-channel audio recorded as .wav
(if audio is present on the incoming SDI stream).
o
Recording ARRIRAW progressive video formats at p48/50/59.94/60 (.ari). Two SSD’s are
required.as data files alternate between two SSD’s (frame counter for files is based on the
timecode). No audio is available for p59.94/60.
o
Playback of ARRIRAW.
o
Support for Gemini “Camera” Record Trigger setting with ALEXA (on ALEXA: Menu >
Recording > Rec Out > SDI Remote > set to On).
NOTE: Due to changes in formatting in the firmware release, any SSD to be used
for recording with the new firmware will first require a fresh formatting within the Gemini
Recorder (with the new firmware installed). Additionally, clips recorded with
previous firmware may not play out of Gemini with newer firmware.
