DigiDesign 1622 O Installatiehandleiding - Pagina 7
Blader online of download pdf Installatiehandleiding voor {categorie_naam} DigiDesign 1622 O. DigiDesign 1622 O 14 pagina's. I/o audio interface
Pagina afdrukken4. Sample Rate
These LEDs display the current sample rate
of the 1622 I/O internal crystal oscillator,
which can be either 44.1 kHz or 48 kHz. In
Pro Tools, this is set in the Session Setup
window or in the Hardware Setup dialog.
The 1622 I/O provides the following sam-
ple rates:
48 kHz This is a standard sampling rate of
many professional audio devices. It is rec-
ommended for use with devices that can-
not receive digital transfers at 44.1 kHz.
44.1 kHz This is the compact disc standard
sampling rate and the Pro Tools default
sample rate. To avoid the need for sample
rate conversion (which can degrade sound
quality) you should use this rate whenever
you are recording material that will ulti-
mately be published on a compact disc.
When you are using an external digital
source such as a DAT recorder, the front panel
of the 1622 I/O indicates only the internal os-
cillator sample rate, not that of the external
digital source.
5. Input Meters
These LEDs indicate whether or not signal
is present at a given channel's input.
Segment 1 (green) indicates –20.0 dB.
Segment 2 (yellow) indicates –3.0 dB.
Segment 3 (red) indicates –0.1 dB.
6. Output Meters
These LEDs indicate whether or not signal
is present at one of the two outputs. Seg-
ment 1 (green) indicates –20.0 dB. Seg-
ment 2 (yellow) indicates –3.0 dB. Seg-
ment 3 (red) indicates –0.1 dB.
7. Channel 15–16 Direct Inputs
These are balanced, 1/4-inch TRS jacks for
convenient front panel audio input con-
nections.
Inputs can be individually calibrated from
+4 dBu to –10 dBV line levels and higher
in 2 dB gain steps, using the Other Options
dialog (Setups > Hardware > Other Op-
tions). This allows the 1622 I/O to accom-
modate any standard, line-level input, in-
cluding synthesizers, samplers and effects
devices. Unbalanced connections are sup-
ported through the use of standard
1/4-inch TRS mono phone plugs.
The 1622 I/O is factory calibrated at
+14 dBu headroom, for a maximum out-
put level of +18 dBu when in +4 dBu oper-
ating mode. When set to –10 dBV operat-
ing mode, maximum output level is
+4 dBV.
Using the 1622 I/O 3