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I N S T A L L A T I O N
16
DIGITAL MULTITRACK TAPE DECKS
This section explains how to use the Digital
Timepiece with modular digital multi-track
(MDM) tape recorders such as the following:
■
Alesis ADAT and ADAT XT
■
Tascam DA-88 and DA-38
■
Fostex RD-8 and CX-8
■
Panasonic MDA-1
■
SONY PCM-800
■
Other devices that support the ADAT sync
protocol, such as the Darwin hard disk recorder
from E-mu Systems
ADATs and DA-88s have their own proprietary
synchronization format, which is supported
directly by the Digital Timepiece. MDMs from
other manufacturers have, in some cases, adopted
either the Alesis or Tascam sync format. One
example is the Fostex RD-8. The RD-8 has adopted
the Alesis ADAT sync format and, as a result, can be
connected directly to the Digital Timepiece in the
same fashion as an ADAT. Check with the
manufacturer of your device for compatibility.
Modular digital multi-track systems have their
own means of chaining multiple units and
synchronizing them with single-sample accuracy
to form, in effect, one large system that functions as
a whole. The Digital Timepiece synchronizes
multiple unit systems just as easily and effectively
as a single unit. In fact, the connections and
procedures for the Digital Timepiece are the same
for single- and multiple-unit systems. The Digital
Timepiece can even sync ADATs and DA-88s with
each other with single-sample accuracy.
Modular digital multi-tracks also provide a way to
synchronize to SMPTE time code. For example,
ADATs and ADAT XTs require an Alesis BRC to
synchronize to SMPTE or to follow MMC
transports commands from computer software (or
other MMC controller). The Digital Timepiece has
many of the same capabilities as a BRC, making it
unnecessary for basic synchronization and MMC
remote control of ADATs. The Tascam DA-88
synchronizes with other devices via an SY-88 add-
on card. See “ABS time versus SMPTE offset with
an SY-88” on page 18 for details.
How proprietary synchronization works
ADATs, DA-88s and any other devices that support
the ADAT or DA-88 proprietary sync protocols are
connected directly to the Digital Timepiece via the
ADAT and DA-88 Sync ports. This connection
provides both a sample-accurate time base and
frame-accurate address information (Figure 3-6).
In addition, the multi-track recorders to be either
master of or slave to the Digital Timepiece.
Figure 3-6: How modular digital multi-track recorders like the ADAT,
DA-88, DA-38 and RD-8 synchronize with the Digital Timepiece.
Refer to the sections below for specific information
about each device, including important consider-
ations if you are also using an Alesis BRC or Tascam
SY-88 sync card.
New MDM systems are frequently being
introduced. If you have a device other than the
ones discussed in the following sections, contact
Mark of the Unicorn technical support as
described in “Technical Support” on page 98.
Digital Timepiece
proprietary,
sample-accurate
time base
and
address
ADAT, DA-88, DA-38, RD-8
or other
modular digital multi-track