DigiDesign 1622 1 Instrukcja instalacji - Strona 6
Przeglądaj online lub pobierz pdf Instrukcja instalacji dla Akcesoria DigiDesign 1622 1. DigiDesign 1622 1 14 stron. I/o audio interface
Drukuj stronęInternal This is the 1622 I/O standard set-
ting. In this mode, the 1622 I/O sample
rate is generated by its internal crystal os-
cillator (whose frequency is determined by
the Sample Rate setting in the Session
Setup window). Internal mode should be
active whenever the 1622 I/O is not syn-
chronized to an external clock source.
Digital This setting indicates that a S/PDIF
word clock signal is the source for the
1622 I/O sample rate. This is the setting to
use for inputting material from DAT ma-
chines or other S/PDIF digital devices.
To use the 1622 I/O digital input and out-
put as an effects send and return to a digi-
tal effects device, set the 1622 I/O to Inter-
nal Sync Mode. Set the digital effects
device to accept an external digital clock
(the 1622 I/O) so it synchronizes with
Pro Tools.
In an expanded system, the system clock is
carried by the Audio Interface connected
to the first Pro Tools card in your system.
This Audio Interface will act as the master
interface in your system, and all other Au-
dio Interfaces will be slaved to it.
Because some digital audio devices do not
output proper clock when they are not playing
back, leaving the 1622 I/O in Digital Sync
Mode may cause Pro Tools audio playback
quality to suffer, or to play back at the wrong
pitch. If you are using digital I/O with the
Pro Tools hardware, reset the Sync Mode from
Digital to Internal after inputting material.
2
1622 I/O
Slave This LED is lit when the 1622 I/O is
synchronized to another Digidesign Audio
Interface or synchronization peripheral. In
this mode, the sample rate of the slave in-
terface is derived from the frequency of the
incoming master clock signal present at
the Slave Clock (256x) port. If the Sync
Mode is set to Internal, connecting a Slave
Clock Out signal from another Digidesign
Interface or synchronization peripheral to
the 1622 I/O Slave Clock In port will auto-
matically switch it to Slave mode.
In expanded Pro Tools systems, the Super
Clock output of the master Audio Interface
locks all other interfaces together with
sample accuracy, keeping all signals
phase-synchronous.
When slaving to a Digidesign Universal
Slave Driver, Video Slave Driver, or SMPTE
Slave Driver, set the clock source to Internal.
The Audio Interface will automatically switch
to Slave mode when it detects the 256x input
clock.
3. Ch 1-2 Input
This LED indicates the format (analog or
digital) of the audio input signal to chan-
nels 1 and 2. In Pro Tools, you choose ana-
log or digital input for these two channels
in the Session Setup window or the Hard-
ware dialog (in the Setups menu). Input
channels 3 through 16 of the 1622 I/O are
always analog.