Synchronization
Large control systems often require a number of different pieces of equipment to operate
within strict timing constraints. For example, an exhibit can use a video display with an
associated multi-channel audio playback system, in which audio playback must match the
video display (“lip sync”). To support complex system timing requirements in multi-unit
configurations, the JMP 9600 supports the following synchronization timing references:
•
Linear timecode (LTC)
— A stream of coded time stamps encapsulated in an audio
signal. The frequency of these time stamps matches video rates for the various video
standards. There are three common standards in use that the media player supports:
•
SMPTE 12M-1-2008
— Including all of the frame rates supported by the player,
including:
•
EBU
— Matches the video rate of 25 frames per second of the PAL specification
that is used in the United Kingdom.
•
Film
— Matches the video rate of 24 frames per second used in the motion
picture industry.
NOTE:
The Drop Frame timecode standard is
not
supported.
•
Traditional genlock
— A standard NTSC, PAL, or HDTV blackburst timing reference
•
Proprietary genlock
— Two timing references that are non-standard and unique to
Electrosonic products that have been acquired by Extron:
•
MSGEN genlock
— A timing reference that is native to the legacy Electrosonic
MS9200 series HD Player.
•
ESGEN genlock
— A timing reference that is native to most other former
Electrosonic products.
NOTE:
Only JMP 9600 2K units support MSGEN genlock and ESGEN genlock.
JMP 9600 Media Player • Detailed System Interaction
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