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Synchronizing connected audio devices.
Making connections between the H8000FW and the computer.
All recent Macs and many PCs support FireWire. Those PCs that do not support FireWire
can usually be upgraded with an inexpensive plug-in card.
The H8000FW is connected to the computer using an IEEE1394A FireWire cable which
is widely available from computer stores and typically ranges in length between 3 and 15
feet. Cables longer than 15 feet (4.5m) are not supported by FireWire without the use of
special adaptors. This cable can be connected to either FireWire connector on the
H8000FW, allowing the other one to connect to a following FireWire device if desired.
While FireWire is designed to be hot-pluggable (meaning that it can be connected to
powered-on systems), Eventide recommends that where possible it be connected between
units when their power is switched off. The reason for this is to avoid certain rare
conditions which can damage the unit being connected.
Setting the sample rate and buffer size for the system
A number of settings can be made that affect the performance of your system. The first of
these is
sample rate
, which is the rate at which the audio is converted from the analog world
to discrete digital values (or the other way around). This is usually expressed in kHz or
samples per second.
The sample rate is normally defined by the computer operating system or by the
workstation application and can be set from a menu or dialog box. See the manual for
your application to find out how to change the sample rate. You should not change the
sample rate directly from the H8000FW when it is connected to the computer as this can
cause problems for some applications – change it on the computer and the computer will
automatically change the H8000FW setting where necessary. Higher sample rates give
better audio performance but use more disk space for recording and place heavier
demands upon the computer.
The
buffer size
setting determines the
latency
of the system. Latency in this context is a
measure of the delay introduced by sending audio to and from a computer and an external
device such as the H8000FW.
To help explain this, an analogy may be helpful. Picture a large pile of coal representing
the digital information stored in the computer. Each piece is one digital value. The job
Содержание H8000FW
Страница 6: ......
Страница 140: ...134 Now the program has the new name new Voice ...
Страница 183: ...177 Click Restart to restart your computer and conclude the installation ...
Страница 186: ...180 The Sound options screen now displays ...
Страница 195: ...189 ...