opcode studio 4 Manual Do Utilizador

 

and new products. Also, you’ll receive 
Opcode’s periodic newsletter, which con-
tains advanced tips, troubleshooting 
techniques and more.

Opcode technical support hours (Pacific 
Time) are 9:00am to noon and 2:00 to 
5:00pm Monday through Friday.

Call (650) 429-2349 for technical support, 
but 

 

 try to find the answer in this 

manual first.

 

The operational portions of this manual 
assume you’re familiar with SMPTE Time 
Code, MIDI Time Code, and Direct Time 
Lock. If you’re not, you should read this 
section to develop a basic understanding 
of synchronization and the various time-
code formats. Consult music technology 
magazines or introductory books if you 
need more information about any of these 
topics.

 

SMPTE Time Code is an international 
timecode standard created by the Society 
of Motion Picture & Television Engi-
neers. It specifies a format for recording 
digital timing information onto magnetic 
tape; this timing information is divided 
into hours, minutes, seconds and frames. 
By using SMPTE Time Code (often 
referred to simply as “SMPTE”), you can 

synchronize the playback of separate 
audio decks, video decks and computers.

Using SMPTE requires two separate 
actions:

•

Generating the SMPTE Time Code 
and recording it onto tape (a process 
often referred to as “striping”).

•

Reading the SMPTE Time Code off 
the tape and using it as a master 
timing source for synchronizing play-
back of other tape machines and 
computers.

There are two types of SMPTE Time 
Code: Longitudinal Time Code (LTC), 
and Vertical Interval Time Code (VITC). 
LTC is recorded on tape tracks that run 
linearly across the length of the tape. This 
format is recorded on audio tape or on the 
audio track of a video tape. VITC is 
recorded within the video portion of a 
video tape.

Since different video systems run at differ-
ent speeds (or “frame rates”), the SMPTE 
format also specifies a number of different 
rates. 

The Studio 4 will both generate and read 
SMPTE Time Code in the LTC format. If 
you have a tape striped with VITC, you’ll 
need to use either a VITC-to-LTC con-
verter or a VITC-to-MTC converter such 
as Opcode’s Studio AV.

The Studio 4 supports five SMPTE frame 
rates. These rates are:

•

24 Frames/second—Film frame rate.

•

25 Frames/second—EBU (Euro-
pean) television frame rate.