VENUE Profile Guide22
Enabling a Second Stage Rack
To enable and confirm communication with the second Stage
Rack:
1 Put the system in Config mode.
2 Go to the Options page and click the System tab.
3 Click Edit.
4 Select Enable Stage 2, and click Apply. The system restarts.
5 Go to Options > Devices to view hardware status. The con-
nection to the second Stage Rack should be displayed in the
FOH Rack graphic.
Digital Inputs and Sample Rate
Conversion
This section describes how to connect and clock external dig-
ital devices to VENUE systems.
Overview
The types of digital I/O and connectivity available varies de-
pending on your system components and their configuration:
Mix Rack The VENUE Mix Rack provides a pair of digital (AES)
2-Track inputs and outputs. The Mix Rack can also be ex-
panded to include an XO16 card, to add 8 channels of analog
output and 8 channels of digital (AES) output. Mix Rack also
provides Word clock I/O.
FOH Rack VENUE FOH Racks provide numerous digital inputs
and outputs, which can be expanded further by adding an IOx
card. FOH Rack also provides Word clock I/O.
Stage Rack VENUE Stage Racks can be expanded by adding a
DSI Digital Input card to add 8 channels of digital (AES or
ADAT) input, and by adding a DSO Digital Output card for 8
channels of digital (AES or ADAT) output. DSI cards also pro-
vide Word clock I/O.
VENUE digital I/O (such as the DSI card) operates at the
VENUE system sample rate of 48 kHz. The DSI card provides
auto-detection and sample rate conversion on input, letting
you connect a wide variety of digital sources without having
to be concerned with synchronization and clock connections.
Sample Rate Conversion Latency
When sample rate conversion is enabled on DSI or other
VENUE digital inputs, input signal paths will incur a small
amount of latency. The following table illustrates the sample
rate conversion processing delay at various sample rates.
Sample rate conversion (SRC) can also be disabled (DSI card
only). This provides the lowest possible input path latency,
but requires that care be taken to synchronize the source and
other devices accordingly (see “Synchronizing External Digi-
tal Source Devices” on page 23).
Enabling the second Stage Rack
Detail of Devices page showing connection to second Stage Rack
The second Stage Rack must be enabled for the Devices tab
to display the correct number of input and output cards in
that unit.
Minimum Additional Latency due to Sample Rate Conversion
External Sample Rate SRC Process Delay
32 kHz 1.50 ms
44.1 kHz 1.09 ms
48 kHz 1.00 ms
88.2 kHz 0.848 ms
96 kHz 0.833 ms
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