MOTU Digital Timepiece User's Guide download pdf (Page 53)

100

101

CHAPTER

7 Striping Time Code

OVERVIEW

The Digital Timepiece can be used to stripe

(record) both forms of SMPTE time code (LTC and

VITC). It can also be used to stripe LTC while

resolved to video, ensuring that time code does not

drift out of sync with the video frames.

The Digital Timepiece can stripe time code while

locked to another external SMPTE time code

source or when it is running under its own clock as

the address master. To ensure accurate results, we

recommend striping time code from the Digital

Timepiece when it is either running under its own

time base (Internal time base mode) or resolved to

an accurate video source, such has a house sync or

blackburst generator.

When the Digital Timepiece is in Internal mode,

you can initiate striping from the front panel

STRIPE button, which always starts at zero hours,

minutes, seconds and frames (0:00:00:00). Or you

can initiate striping from ClockWorks™, the

software console for the Digital Timepiece. Or you

can initiate striping from any MMC control surface

or MMC-compatible software program, which you

have set up as a transport control master over the

Digital Timepiece.

When the Digital Timepiece is locked to an

external address source, you initiate striping by

rolling the external time code source.

Note that the Digital Timepiece always generates

fresh time code while reading existing time code.

You can use this capability to:

■ Regenerate fresh time code that is based on

existing time code, and eliminate drop-outs in the

original code

■ Lengthen existing time code tracks

For information about regenerating time code, see

“Regenerating fresh time code” on page 55 and

“Lengthening a SMPTE track” on page 56.

General procedure . . . . . . . . . . . . . . . . . . . . . . . . .54

Striping frame-locked LTC onto video. . . . . . . .55

Striping SMPTE on a multitrack tape deck. . . .55

Regenerating fresh time code. . . . . . . . . . . . . . . .55

Lengthening a SMPTE track. . . . . . . . . . . . . . . . .56

Regeneration and time code bits. . . . . . . . . . . . .57

Recording VITC . . . . . . . . . . . . . . . . . . . . . . . . . . .57

Recording burn-in & other graphics . . . . . . . . .58

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MOTU Digital Timepiece User's Guide Page 53

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