Mackie TT24 Owner's Manual - 5.1
Mackie TT24 Digital Live Console Owner’s Manual
51
Chapter 5: DSP and Internal Effect Allocation
TECH NOTE:The TT24 uses 12 SHARC DSP chips with embedded algorithms. This DSP approach
differs from conventional digital audio workstations in that the algorithms are
programmed as firmware on the DSP chips. The incoming audio signal is digitized
by its ADC and then routed through the DSP chip whether or not processing is
engaged. This ensures equal latency for all incoming audio sources.
This chapter discusses how the TT24 allocates its DSP and Internal Effects
resources.
See Chapter 6:
Touchscreen and TT Control
for specific information about the
DSP and Effects Touchscreens.
See
Tabular Summary of DSP and Effects
on page 58 for parameter reference.
5.1
Analog, Digital, and Line Inputs
Analog Inputs
Analog input channels 1–24 route to their DSP block immediately after the ADC
and before routing to outputs, groups, and auxes. The signal flow is: variable-
frequency high-pass filter, adjustable gate, EQ and compressor (the EQ and
compressor order can be switched for each channel), channel fader, pan and
assign sections.
Digital Inputs
The ADAT Optical digital input channels 25–48 have no DSP. Their signals
enter the board, pass through the channel meter and can be routed to the
Mains, Aux Sends, and Groups/Matrix as needed.
NOTE:
The UFX II expansion card provides additional DSP for these inputs.
Line Inputs
Each Line Input can access a four-band parametric EQ. Odd/even adjacent
inputs can be stereo linked (see page 27).