Introduction/Safety Instructions
Welcome!About the ADAT HD24
Thank you for making the Alesis ADAT HD24a aAlesis, the company that revolutionized
part of your studio. Since 1984, we've beenmultitrack recording with the introduction of
designing and building creative tools for the audiothe ADAT, now offers the ADAT HD24 hard
community. We believe in our products, becausedisk recorder. The HD24 writes to hard disk in
we've heard the results that creative people like youa special way to provide 24 tracks of 24-bit
have achieved with them. One of Alesis' goals is toaudio on low-cost IDE hard drives, and offers
make high-quality studio equipment available todrop-in compatibility with over 150,000 ADAT
everyone, and this Reference Manual is an importantsystems world wide. The ADAT HD24 shatters
part of that. After all, there's no point in makingthe cost-per-track price barrier for professional
equipment with all kinds of capabilities if no onequality audio recording.
explains how to use them. So, we try to write our
manuals as carefully as we build our products.Important features of your ADAT
HD24
The goal of this manual is to get you the information
you need as quickly as possible, with a minimum of3 Uses affordable, hot-swappable hard
hassle. We hope we've achieved that. If not, pleasedrives as removable media:
drop us an email and give us your suggestions onTo allow the use of affordable IDE hard drives
how we could improve future editions of thisas removable recording media, on a cost and
manual.
performance par with tape, Alesis had to
overcome limitations such as data fragmentation
We hope your investment will bring you many years
that occurs in traditional hard disk recording
of creative enjoyment and help you achieve yourformats. In order to achieve this, Alesis
goals.engineered a new method of writing on hard
drives called ADAT FSTa, specifically designed
Sincerely,for music recording. Unlike the writing schemes
The people of Alesis Studio Electronics
employed by computer-based systems, this new
method keeps tracks of a given song in adjacent
sectors of the hard disk, reducing the required
"seek time" for the drive, providing a much
greater level of stability in recording and
playing back data. Using ADAT FST, seek-to-
play functions are virtually instantaneous, and
the data fragmentation that can cause hard disk
crashes is greatly diminished. As a result, very
low-cost, widely available, low-RPM IDE hard
drives can be used with exceptional results. For
the first time, at about $4 per gigabyte, the cost
of the hard disk storage medium is less than that
of ADAT tape. Entire 24-track projects can be
stored on a single removable drive. Alesis
engineered custom drive caddies and protective
storage cases to establish today's affordable IDE
drives as the new exchange medium for music
recording. The HD24 ships with two drive
caddies, one loaded with a 10-gigabyte hard
drive which will yield approximately 45 minutes
of 24-track recording time at 24-bit/48 kHz, and
the other ready for you to install your own drive
in.
ADAT HD24 Reference Manual3 |
ACEC
