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6 - Appendix
Technical Specifications
E-MU Digital Audio System 81
DIGITAL I/O
S/PDIF
• 2 in/2 out coaxial (transformer coupled output)
• 2 in/2 out optical
• AES/EBU or S/PDIF (switchable under software control)
MIDI
1 in, 1 out (16 MIDI channels)
SYNCHRONIZATION
Internal Crystal Sync:
44.1kHz, 48 kHz, 88.2 kHz, 96 kHz, 176.4 kHz, 192 kHz
• S/PDIF (optical or coaxial)
• Word Clock (sync card only) - (75 ohm termination,
switchable)
RMS JITTER @ 44.1K
(Measured via Audio Precision 2)
SRSync SourceRMS jitter in picoseconds
44.1 Internal Crystal 596ps
44.1 Optical Input 795ps
SYNC CARD
SMPTE
Converts to/from longitudinal time code (LTC) to MIDI time
code (MTC) and vice-versa
Frame Rates
24, 25, 30 drop, 30 non-drop frames/second.
Compatible with 29.97 fps timecode
Modes
Regeneration, stripe and conversion modes
Input Level:
0.5 - 4V p-p
Output Level:
+4 dBu, -10 dBV (software selectable)
Input Impedance:
10K ohm
Dimensions & Weight
0404 PCI Card
Weight:
0.25lb / 0.10kg
Dimensions:
L: 156mm H: 107mm
Sync Daughter Card
Weight:
0.25lb / 0.10kg
Dimensions:
L: 5.04" / 128mm