Mackie TT24, Quick Start Manual

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TT24 DIGITAL LIVE CONSOLE
TT24 DIGIT
AL LIVE C
ONS
OLE
Center or L/R. However, it can also be routed to LCR
by assigning it to both Center and L/R simultaneously,
resulting in a true LCR pan.
In LCR mode, a stereo group receives its stereo signal
such that channel pan is interpreted as left-right. This
results in a true LR group, maintaining the stereo im-
age throughout the signal path. After processing, the
Group’s
MUTE switch, and fader, the group can only be
routed to the LEFT and RIGHT or MATRIX outputs.
If a group is configured as LCR, it receives a post-pan
channel signal, such that the pan is interpreted as LCR.
The group maintains a true LCR image through the
signal path: assignable DSP,
MUTE switch, and fader.
The LCR group can be routed to the LEFT , RIGHT , and
CTR/MONO
outputs.
NOTE: Assigning the group to LR or C automatically assigns it to the
other; it cannot be routed to just LR or C or Matrix.
VCA Mode
A VCA group allows assigning channels, each at its
own relative level, to a group whose overall level is
controlled by a single fader. Any input channel can be
assigned to a VCA group.
The VCA group fader modifies the level of assigned
channels
at the channel fader
. This means that all
post-fader sends for these channels are also affected by
the VCA group fader. Both the VCA and channel faders
modify the channel’s output. For example, if the channel
fader is set to +5 dB and the VCA fader is set to -15 dB,
the cumulative output of the channel is -10 dB.
However, any fader at negative infinity or muted is not
affected by a VCA fader. For example, if channel 1 is set
to negative infinity, the output of the channel is muted
regardless of the VCA fader setting. Likewise, if the VCA
fader is at negative infinity or muted, the assigned chan-
nels are muted, regardless of their fader position.
A single input can be assigned to multiple VCA groups
and it will be affected by all VCA faders. The resultant
signal is the sum of the channel and its VCA faders. The
maximum gain from summation is 10 dB.
The VCA group fader has MUTE , SOLO , and SELECT
buttons. When the VCA Group is muted or soloed, the
channels assigned to the VCA group are also muted or
soloed. The channel’s
MUTE and SOLO buttons blink and
the VCA Group’s
MUTE
and
SOLO
buttons are lit solid.
5.4.2 Group DSP Allocation
Mono, stereo, and LCR groups can access DSP but
VCA groups cannot. Eight units of group DSP are avail-
able and each Group mode requires a different number
of units: Mono = 1, Stereo = 2, LCR = 3. Since the TT24
can have up to 8 LCR groups, there is not enough DSP to
cover all group routing in all cases.
The Group OVERVIEW Touchscreen has a
GRP DSP
AVAILABLE meter that displays the group DSP (in 1
unit increments) available (see page 37 for more infor-
mation).
When a group’s mode is changed, the DSP is automati-
cally updated if necessary. If there is insufficient DSP
available to make the adjustment, a warning appears:
“There is not enough DSP to change the mode of the
selected group. Change the mode and remove group pro-
cessing?” Touch
REMOVE to remove group processing
and change the group mode, or touch CANCEL to leave
the group in its current mode and DSP allocation.
Four-Band Parametric EQ
The Group’s four-band parametric EQ operates identi-
cally to the channel’s (see
Four-Band Equalizer
on
page 38).
The Group mode setting determines the number of
EQ sections: Mono = 1, Stereo = 2, LCR = 3. Stereo and
LCR groups have linked EQ sections to implement their
multichannel format. The Group EQ applies to all group
channels.
The Group Parametric EQ can be viewed from the
Group OVERVIEW Touchscreen and is adjustable from
the Group’s 4 BAND EQ Touchscreen.
Compressor
The Group’s compressor operates identically to the
channel’s (see Compressor on page 40).
The Group mode setting determines the number of
Compressor sections and DSP units required: Mono = 1,
Stereo = 2, LCR = 3. Stereo and LCR groups have linked
Compressor sections to implement their multichan-
nel format. The Group Compressor applies to all group
channels.
The Group Compressor can be viewed from the Group
OVERVIEW Touchscreen and adjusted from the COM-
PRESSOR Touchscreen.