LC2000/LC2000-IQ/LC4000/LC4000-IQ
Technical Specification
Issue 1 Rev 6
Page 23
© 2015 SAM
Audio Functions
Analog audio
Four pairs of analogue inputs, individually available to any or all processing channels
Two groups (two pairs) of analogue outputs, separately assignable to any processing
channel
Headroom: +24 dBu, balanced connection
AES audio
Four AES audio inputs, individually available to any or all processing channels
Four AES audio outputs (48 kHz), separately assignable to any processing channel
AES input is auto-detected as PCM (32 to 96 kHz) or non-PCM (48 kHz locked to
relevant video input)
Embedded audio
Each processing channel includes 16-channel embedded audio processing
PCM audio processing includes channel level gain and delay compensation, as well
as pair level routing with L/R swap and phase invert feature
Non-PCM processing features pair level routing and delay compensation. Dolby E
data is passed with a delay to match the video and with co-timed audio frame drop or
repeat
Dolby E
LC2000/LC2000-IQ: Optional single channel Dolby E decode/transcode
LC4000/LC4000-IQ: Optional one or two channels of Dolby E decode/transcode
Throughput delay
Video processing delay
field = 16.7 or 20 ms
frame = 33.3 or 40 ms
With scaling active in same frame rate:
Ref lock / Free run between 3 and 5 ~200 us, Input lock (SDI) 3 1 ms
With same standard in & out and Sync mode = Enabled:
Ref lock / Free run between ~200us and 1 frame + ~200 us, Input lock (SDI) ~1 ms
Frame rate conversion:
Any lock mode, 110 ms typical
Audio processing delay
(Audio delay = 0 ms)
With scaling active in same frame rate:
Ref lock / Free run 1.5 frames, Input lock 1 frame + 1 ms
With same standard in & out and Sync mode = Enabled:
Ref lock / Free run 0.5 frames, Input lock ~3ms
Frame rate conversion:
Any lock mode, 110 ms typical
