Specifications

Pro Tools Reference Guide82
Configuring 192 I/O and
192 Digital I/O Controls
To configure controls for a 192 I/O:
1 With the 192 I/O selected in the Peripherals list,
click the Analog In tab for the following op-
tions:
• You can set your operating level on a channel-
by-channel basis by selecting Reference Level
+4 dBu or –10 dBV. These settings correspond
to two different input connectors on the back of
the 192 I/O. See the 192 I/O Guide for more in-
formation.
• Each of the analog channels in the 192 I/O has
two Input Trims, labeled A and B, for precisely
calibrating and switching levels. You can select
Input Trim A or B on a channel-by-channel basis.
See the 192 I/O Guide for more information.
• You can select
Soft Clip on a channel-by-channel
basis. The Soft Clip limiter attenuates the in-
coming analog signal, providing extra protection
from temporary clipping transients that can
cause digital distortion when they exceed the
maximum input of the unit. With Soft Clip en-
abled, 192 I/O supports an additional 4 dB of
headroom by rounding off the top 4 dB to the
clip point. This is useful for eliminating stray
transients.
2 Click the Analog Out tab. Each of the analog
channels in the 192 I/O has two Output Trims,
labeled
A and B, respectively. You can select
Output Trim A or B on a channel-by-channel
basis.
To configure controls for a 192 Digital I/O or
192 I/O with an optional Digital I/O card:
 On the 192 Digital I/O or a 192 I/O with an op-
tional Digital I/O card, click the Digital tab to
set the Input Format (AES/EBU, TDIF, or
ADAT Optical) and enable real-time sample
rate conversion (in channel pairs, with the SR
Conversion option).
Hardware Setup for 192 I/O, Analog In page
Hardware Setup for 192 I/O, Analog Out page
At session sample rates above 48 kHz, sam-
ple rate conversion for the TDIF and Opti-
cal (ADAT) inputs on the Digital I/O card is
automatically enabled on all eight inputs of
the selected format.
Hardware Setup for 192 I/O, Digital page