Tascam MMR-8 Manuel D’Utilisation
Tascam MMR-8 Owner’s Manual • Appendix E • Glossary
106
Abbreviations
and Terms
Definitions
Control Mode
The mode (menu 000) which sets how the MMR-8 is being controlled.
Control Track
The VTR speed control signal recorded onto the tape. It typically also has time
code recorded in it.
code recorded in it.
DF
Drop Frame. A type of time code that compensates for color video tape (which
runs at 29.97 frames per second) having 108 less frames per hour than black
and white video (which uses 30 frames per second). Since most video
productions are in color, 108 frames must be “dropped” each hour from the
audio in order to keep audio and video in sync. 29.97 DF is the normal time
code used in the majority of video applications.
runs at 29.97 frames per second) having 108 less frames per hour than black
and white video (which uses 30 frames per second). Since most video
productions are in color, 108 frames must be “dropped” each hour from the
audio in order to keep audio and video in sync. 29.97 DF is the normal time
code used in the majority of video applications.
Dubber
An audio transport that uses film sprockets as its timing device.
Edit
The process of modifying the tracks in a project using the EDIT key and one of
the edit functions (cut, copy, paste, clear, insert, open).
the edit functions (cut, copy, paste, clear, insert, open).
Error
An LCD display that indicates a problem with the MMR-8 or with the last
operator key entry.
operator key entry.
Frame
Each image on a film strip is a frame. In video, a frame consists of two
interlaced fields. In film there are 24 frames per second (fps). In video there are
25 fps in the PAL and SECAM systems (European broadcasting) and 29.97 fps
in the NTSC system (USA and Japan). Older black and white video and audio-
only applications use 30 fps.
interlaced fields. In film there are 24 frames per second (fps). In video there are
25 fps in the PAL and SECAM systems (European broadcasting) and 29.97 fps
in the NTSC system (USA and Japan). Older black and white video and audio-
only applications use 30 fps.
Frame Reference
The timing signal for each frame of video.
Groups
There are four Sync Groups in the MMR-8. This allows multiple MMR-8s to
be shared between up to four film transports or video systems.
be shared between up to four film transports or video systems.
HH:MM:SS:FF
SMPTE/EBU time code stated as Hours:Minutes:Seconds:Frames.
Head
The start of a project.
Input Monitor
Applies the MMR-8 track Input to the Output in lieu of the audio from the hard
drive. Typically used to check Input levels before recording.
drive. Typically used to check Input levels before recording.
Interlock
Refers to synchronizing film transports, audio dubbers and audio transports via
the biphase bus.
the biphase bus.
Jam Sync
When discontinuous time code is found on a tape, jam sync will ignore the gaps
to create continuous time code on another tape.
to create continuous time code on another tape.
Jog
Also called scrub, this function uses the Wheel to manually control the speed of
forward and reverse play.
forward and reverse play.
KCU
Keyboard Control Unit. TimeLine’s external machine controller. Provides
remote control for up to six machines (MMR-8s or tape machines).
remote control for up to six machines (MMR-8s or tape machines).