DARWIN Signal Flow
Input
A signal connected to one of the analog inputs of DARWIN passes
through the PAD which matches the gain of the input to accommo-
date either -10 dB or +4 dB signal levels. The analog signal is next
converted to digital by the Sigma/Delta ADCs and the digital signals
fed to the Routing section.
Routing Section
The routing section is analogous to a patchbay where the inputs,
located on either side of the routing screen are connected to any of
the eight track inputs of the hard disk recorder at the bottom of the
screen. Four analog inputs are provided (eight with the optional
input expander) on the left side of the routing screen. Two channels
of S/PDIF digital input and the outputs of the submixer are on the
right side of the routing screen. Like the analog inputs, these input
sources can also be routed to any of the eight tracks. There are
several factory programmed routings (1->8, 2->8, 4->8, 8->8, &
ADAT) and one user programmable routing. The eight channel
output of the router feeds the eight input, internal submixer as well
as the inputs to the recorder.
Submixer
The stereo output of the submixer drives the stereo headphone jack,
and the S/PDIF output. In addition, the stereo submix outputs,
called MIX L & MIX R in the routing screen, feed back as inputs to
the router so that several tracks can be submixed and bounced down
into one or two new tracks. Submixing is performed entirely in the
digital domain to preserve sonic integrity.
Digital Audio Recorder
The recorder is controlled by familiar tape recorder controls (Stop,
Play, Fast Forward, Rewind, Record, and Return to Zero), as well as
the eight Record Enable buttons. Editing of recorded material is
accomplished using the soft key menus under Edit. The Audio SCSI
disk drives, which store the digital audio data, interface here.
Digital to Analog Converters
The eight outputs of the digital audio recorder are fed to the digital
to analog converters and then through the output pad which
outputs the signal at either a -10 dB or +4 dB level (as programmed
in the routing section). The eight outputs of DARWIN are normally
connected to inputs of your mixer.
1 - General Instructions13 |