MOTU Digital Timepiece User's Guide download pdf (Page 7)

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ABOUT THE DIGITAL TIMEPIECE

SONY 9-pin machine control

The Digital Timepiece includes support for the

SONY 9-pin machine control format. You can

connect a SONY 9-pin compatible video deck,

which can then be slaved to the Digital Timepiece.

This allows you to control the video deck, along

with all of your other gear, from your favorite

MMC-compatible computer software or any

MMC-compatible hardware controller.

Conversely, the Digital Timepiece can slave to the

9-pin video deck.

Advanced video features

The Digital Timepiece provides many other

essential video features. The rear panel has two

BNC video jacks (IN and OUT) in addition to its

SONY 9-pin connector. Internally, the Digital

Timepiece has a built-in video sync generator,

which can be synchronized with the Digital

Timepiece’s audio phase lock engine or run

independently of the Digital Timepiece’s synchro-

nization features. The VIDEO IN jack allows the

Digital Timepiece to slave to any NTSC or PAL

video source, such as house sync video or VTR

output. The VIDEO OUT jack can display

whatever is being received on the input, or it can

produce blackburst. In either case, the Digital

Timepiece can overlay up to twelve lines of text and

information on its video output signal, including a

large and small SMPTE time code burn-in, status

information (e.g. the Digital Timepiece’s current

sample rate output), MIDI sequencer triggered

streamers with punch, and numerous lines of user-

programmed text (such as client and project

names). Text lines can be positioned vertically as

desired.

44.1 and 48 kHz with pull up/down

The Digital Timepiece supports 44.1kHz and

48kHz sampling rates. It also supplies 0.1% pull-up

and pull-down at both rates, an essential feature for

those of you who work with ﬁlm cues that have

been temporarily transferred to video for music

scoring or audio post production. By using a pull-

down rate while working with ﬁlm in video format,

you can easily avoid synchronization and drift

problems that arise from the 0.1% speed difference

between the ﬁlm transfer rate of 30fps and the

NTSC video playback rate of 29.97fps.

Proprietary technology

The Digital Timepiece delivers pristine sound and

an extremely stable, high-resolution digital audio

time base with no dithering, rounding, or software

delays. This level of performance is made possible

by custom-designed VLSI technology and a

proprietary high-frequency phase engine.

Fast lockup time

Depending on the speciﬁc scenario in which the

Digital Timepiece is being operated, its lock-up

time can be as fast as one second. Fastest lockup

times are achieved by slaving the Digital Timepiece

to house sync video (“blackburst”) or by running

under its own internal clock. When slaving the

Digital Timepiece to SMPTE or MIDI time code

(without video as a time base), lock up time is

typically 2-4 seconds, depending on the overall

stability of the incoming time code.

Control track

A new, proprietary Mark of the Unicorn synchro-

nization format, called ‘Control Track’, is supplied

via two 8-pin circular DIN sockets on the Digital

Timepiece rear panel. By means of high-resolution

sample address information, Control Track can

synchronize two Digital Timepieces with sample-

accurate timing.

Stand-alone and computer-based operation

The Digital Timepiece can be operated in a

computer-based setup or as a stand-alone

synchronizer. The front panel supplies buttons and

status LEDs for making all of the necessary basic

operational settings. You can choose the overall

operating mode (called the ‘time base mode’), the

sample rate (44.1kHz or 48kHz), sample clock

pull-up or pull-down (0.1%), and SMPTE time

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MOTU Digital Timepiece User's Guide Page 7

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