33
Step 2:
The listener sits in the preferred listening position of the room with microphones in ears,
looking forward.
Step 3:
After having pressed
SPK
, press
OK
to proceed with the measurement. The signals are a series
of sweeps. The screen will say:
PERSONALISATION
IN PROGRESS
CH 1 LOOKING C
Through the speakers an announcer will say “Look centre.” The listener should look straight ahead
with head level (not up or down, 0° elevation), and keep head fixed while each speaker is sounded in
turn. In this basic procedure, do not look at the centre speaker if it is positioned above or below a
screen; look straight ahead.
Next, the announcer will say “Look left.” The listener should look directly at the left speaker, and
each speaker will again be sounded in turn. Again, do not look up or down.
Next, the announcer will say “Look right,” and the listener should look directly at the right speaker.
Each speaker again is sounded in turn.
When you look left or right, be sure to point your nose at each speaker. In looking left or right, people
tend, unconsciously, to turn their heads most of the way, but to do the last few degrees of pointing with
their eyeballs. Here we are concerned with ears, not eyeballs.
Step 4:
When the right channel sequence is complete, a screen showing numbers appears; press
OK
.
Then a second screen of numbers appears; press
OK
again. These screens are diagnostics which are
explained under PRIR Optimisation.
Then the channels off/on screen reappears. This screen allows the user to set which channels will be
saved in the PRIR.
For the default 5.1 measurement and all other measurements except stereo, the screen will show the
same
ON
and
OFF
settings as were chosen at the start of the procedure; simply press
OK
.
In the case of a stereo measurement (original settings
L
and
R
ON
, all others
OFF
), the
C
channel will
have changed from
OFF
to
ON
. This is because the Realiser has created a centre channel from the left
and right, for use in building multichannel virtual speaker systems from stereo pairs, as discussed in
the section on PRIR measurement modes and multiplying speakers. No harm is done by allowing this
virtual centre speaker to be saved in the PRIR; if stereo is played, the virtual centre speaker will be
silent. However, if you prefer to save only the two-channel emulation of the real stereo pair, turn
C
OFF
.
P
ress
OK
.
The screen will say:
ENTER PRIR DETAILS
ID:
EV:
Enter the listener’s name after
ID
, and a name for the location after
EV
(environment). Letters are
entered with the number keys on the remote control, pressing the keys multiple times to access the
letters associated with each key. Use the arrow keys to move the cursor; the cursor does not advance
automatically after a letter is entered. Capital letters are not accessible through the remote control.
For example, a filled-in screen might say:
