Focal FOCAL MANAGER, Руководство пользователя

Страница: 6 / 28

• "Delays" sub-menu (fig. 8)
In a 5.1 or 2.1 system, it is essential that the sound radiated by each speaker
reaches the listener at the same time: the "
Delays " window can easlily
manage this.
One just has to enter the time delays
(in milliseconds)
to be applied to the
different loudspeakers. Given the speed of sound, " Focal Manager " will
automatically translate those values into equivalent distances, in metres
and feet.
The picture (fig. 8) shows the example of an 0.85ms delay intended to
compensate for the fact that the " Center " speaker is located 29 centimetres
(0.95 feet) closer than the left and right ones, with respect to the listener.
In a multi-speaker system, one will always have to take the most remote
speaker as reference, then calculate the time delay appropriate for each
one of the other speakers.
• "Sweet spot" sub-menu
The unique " Sweet spot " function allows optimising the sound at the listener
position according to his location relative to the speakers.
This function actually achieves a precise phase alignment between the various
drive units of a loudspeaker according to the listener’s position, therefore
giving the best possible "
imaging
".
There are 2 different cases:
- The one of a stereo system (fig. 9)
- And that of a 5.1 system (including a Center speaker- fig. 10)
Remark: this software being shared by several models of loudspeakers, the
user must not be puzzled if the "
Focal Manager
" windows do not show the
correct shape of his cabinets.
In both cases clicking the " Edit " button will call a window including data fields
for various parameters; namely, the distance between the L/R speakers and the
listener, the height of his ears relative to the tweeters, the spacing between the
left and right speakers, the distance between the "
Center " speaker and
the listener…
Both pictures are explicit enough in explaining which parameter is expected in
each data field.
6
Figure 8
Figure 9
Figure 10
FOCAL MANAGER
PC/MAC VERSION
notice focal manager 6 19/03/04, 16:32:44