53
1 john doe
studio a
A 20:01 10-OCT-08
. .TON. .
The
BASS
and
TREBLE
settings apply only to the current preset. To save them, save or
re-save the preset.
The
ROLL OFF
and
HPF
(high pass filter) controls work together:
ROLL OFF
rolls off the low frequencies of the channel in question for bass
management. The crossover choices are
80
,
120
,
240
, and
480 Hz
.
80 Hz
is the
correct setting for almost all systems and is the frequency below which most people
cannot hear direction.
120
might be used for small speakers;
240
for extremely small
computer-style speakers.
480
is provided only as an easy-to-hear verification that the
filter is engaged.
HPF
(high pass filter) enables and disables
ROLL OFF
.
MIX BLOCK
is a method of combining channels It is implemented as follows.
Channels 1 and 2: no mix block
Channels 3 and 4: mix block and bass management
Channels 5 and 6: mix block
Channels 7 and 8: no mix block
There are two purposes for the mix block. If the speaker array in the PRIR does not match the
channels in a recording, some redirection is possible. For example, if a PRIR contained an
overhead virtual speaker and the recording to be played did not include an overhead channel, the
mix block could be used to direct some or all of the channels into the overhead virtual speaker.
(The channels could still play through their matching virtual main speakers.)
The other purpose for the mix block is that it allows bass management within the Realiser. Thus
an emulated speaker system which was not bass-managed in reality, can be heard as it is (non-
bass-managed), or as it
would
sound with bass management, with the low frequencies of the
main channels being directed to the virtual subwoofer. In many cases virtual bass management
will improve the sound for the same reason as it would in the case of real speakers, if, as is
usually true, the virtual subwoofer is superior to the virtual main speakers in the 20-80 Hz
range.
In this example, the standard 5.1 channel assignments will apply. To access the mix block,
press
MENU
, then the speaker button (
LS
in this example)
.
Then use the ^ and
v
keys to move
the cursor to
LS vSPKR SETUP1
. Press
OK
. The screen will say:
FILTERS
>MIX BLOCK
LFE GAIN: 0 dB
LPF MIX: NO
Press
OK
. The screen will say:
> (0.0 x L ) +
(0.0 x R ) +
(0.0 x C ) +
(0.0 x SW ) +
