Grass Valley Maestro Master Control Installation v.2.4.0 - Manual (Page 422)

422 MAESTRO Installation and Service Manual
Appendix A — Specifications
Meter Levels: Compared to Analog and Digital Signal Levels
The image shown below may be used as a comparison to Analog and
Digital Signal levels.
Figure 307. Meter Levels
–126.25 dBu
?
+8 dBu
?
–70.09 dBu ?
–94.17 dBu
?
–118.25 dBu
?
–12 dBu ?
+28 dBu
?
–10 dBu
?
+10 dBu
?
–88.09 dBu ?
–112.17 dBu
?
–136.25 dBu
?
– 30 dBu ?
–3 dBu
?
+17 dBu
?
–81.09 dBu ?
–105.17 dBu ?
–129.25 dBu
?
–23 dBu ?
+20 dBu
?
0 dBu
?
–78.09 dBu ?
–102.17 dBu
?
–20 dBu ?
+4 dBu
?
+24 dBu
?
–74.09 dBu ?
–98.17 dBu
?
–122.25 dBu
?
–16 dBu ?
?
0 dBFS
?
–10 dBFS
?
–20 dBFS
?
–30 dBFS
? –40 dBFS
?
–50 dBFS
?
–60 dBFS
? –70 dBFS
?
–80 dBFS
?
–90 dBFS
17 Bits –104.11 dBFS
?
16 Bits –98.09 dBFS ?
18 Bits –110.13 dBFS
?
19 Bits –116.15 dBFS
?
20 Bits –122.17 dBFS
?
22 Bits –134.21 dBFS
?
24 Bits –146.25 dBFS
?
Ref. Level
(SMPTE)
(Recommended)
Digital Noise Floor
Max Digital Level
? –100 dBFS
?
–110 dBFS
?
–120 dBFS
? –130 dBFS
?
–140 dBFS
0 VU
?
+3 VU
?
–20 VU
?
(Consumer Reference Level)
–3 dBu
Analog Reference
(Recommended Pro Reference Level)
+8 dBu
Analog Reference
Selectable
Selectable
Digital Audio
Dynamic
Range
0 dBu
Analog Reference
–10 dBu
Analog Reference
+4 dBu
Analog Reference
VU Meter Display
PPM Meter Display +4 PPM ?
0 PPM ?
–4 PPM ?
–8 PPM ?
–12 PPM ?
–16 PPM ?
–20 PPM ?
071848206_Meter Levels