Alesis ADAT-HD24 Reference Manual page 5

Introduction/Safety Instructions
Everything you need is built-in:
The HD24 comes complete with 24 channels of
analog and digital inputs and outputs—there are no
cards or extras to buy to get audio in or out of the
recorder. Superb sonic performance was a base-line
objective for Alesis. The HD24 provides 24 tracks of
high-resolution 24-bit uncompressed linear
recording at standard sample rates of 44.1kHz or 48
kHz. It supports 12 tracks at sample rates of
88.2kHz and 96kHz when slaved to external digital
products such as A/D, D/A converters, and a
forthcoming 96 kHz option will allow high-sample
rate analog I/O right from the back panel. An
external BNC word clock input is provided for
slaving to external clock sources. The HD24 also
provides powerful editing capabilities with CUT,
COPY, PASTE and multiple UNDO functions across
any or all tracks simultaneously.
Connects easily to over 150,000 ADAT
systems worldwide:
The rear panel of HD24 includes 24 channels of
ADAT Optical inputs and outputs and ADAT Sync
IN and OUT connectors to allow HD24 to sample-
accurately synchronize with other ADATs, a BRC
remote controller, and products from over 100
manufacturers. When connected to a BRC, the
HD24 emulates three traditional ADATs. Up to five
ADAT HD24 units can be synchronized to make up
to 120-track systems, simply by chaining 9-pin
cables from the Sync Out of one HD24 to the Sync In
of another.
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Provides multiple methods of file
transfer:
The HD24 allows you to move data to and from
the recorder in THREE convenient ways:
• The hard drives used by the HD24 are so
affordable that drive caddies can be stored
on the shelf just like tape, and instantly hot-
plugged into the front panel when you want
to change projects. The ADAT FST drive
format establishes removable hard drives as
the most reliable, easiest-to-use multitrack
media for pro applications. Two front-panel
drive bays allow quick retrieval and fast
back up of projects. Drives are hot-
swappable, and fast back-up (a few minutes
for an entire drive) is possible between two
front-panel drive bays.
Industry-standard ADAT Optical I/O
•
allows transfer of up to 24 tracks of 24-bit
audio simultaneously in real-time using
inexpensive fiber-optic cables. The HD24
can easily send digital audio to and from
devices such as tape-based ADATs, digital
mixing consoles, and computer cards or
interfaces.
A rear-panel Ethernet port allows the HD24
•
to be connected as a stand-alone FTP server
with its own IP address that can be accessed
from a computer network, even over the
Internet! Songs appear as folders on any
Web browser, containing individual .WAV
or AIFF files for each track.
download and upload files from any HD24
connected to a network. Files can then be
processed using computer-based editing
applications and moved back to the HD24.
ADAT HD24 Reference Manual
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