Audio signal levels in vpp and dbu, Interfaces and sockets – codec 6000 mxp – TANDBERG 6000MXP User Manual
Page 32
32
D 13887.08
MAY 2008
TANDBERG 3000
MXP
&
6000
MXP
REFERENCE GUIDE FOR SYSTEM INTEGRATORS
Interfaces and Sockets – Codec 6000
MXP
Audio Signal Levels in Vpp and dBu
Audio Inputs 4, 5 & 6
Signal levels
Signal
levels
Clipping levels
Nominal
level
Input
menu level
setting
[dB]
[Vpp]
[dBu]
[dBu]
0.0
15.5
17.0
–1.0
1.5
13.0
15.5
–2.5
3.0
11.0
14.0
–4.0
4.5
9.2
12.5
–5.5
6.0
7.8
11.0
–7.0
7.5
6.5
9.5
–8.5
9.0
5.5
8.0
–10.0
10.5
4.6
6.5
–11.5
12.0
3.9
5.0
–13.0
13.5
3.3
3.5
–14.5
15.0
2.8
2.0
–16.0
16.5
2.3
0.5
–17.5
18.0
2.0
-1.0
–19.0
19.5
1.6
-2.5
–20.5
21.0
1.4
-4.0
–22.0
22.5
1.2
-5.5
–23.5
Microphone Inputs 1, 2 & 3
Signal levels
Signal
levels
Clipping levels
Nominal
level
Input
menu level
setting
[dB]
[mVpp]
[dBu]
[dBu]
0.0
83.0
–28.4
–46.4
1.5
69.8
–29.9
–47.9
3.0
58.8
–31.4
–49.4
4.5
49.4
–32.9
–50.9
6.0
41.6
–34.4
–52.4
7.5
35.0
–35.9
–53.9
9.0
29.4
–37.4
–55.4
10.5
24.8
–38.9
–56.9
12.0
20.8
–40.4
–58.4
13.5
17.5
–41.9
–59.9
15.0
14.8
–43.4
–61.4
16.5
12.4
–44.9
–62.9
18.0
10.4
–46.4
–64.4
19.5
8.8
–47.9
–65.9
21.0
7.4
–49.4
–67.4
22.5
6.2
–50.9
–68.9
This specification is always valid for mic 1 and 2, and
for mic 3 if mic level setting is selected.
Microphone Input 3
Line level mode signal levels
Signal
levels
Clipping levels
Nominal
level
Input
menu level
setting
[dB]
[Vpp]
[dBu]
[dBu]
0.0
15.5
17.0
–1.0
1.5
13.0
15.5
–2.5
3.0
11.0
14.0
–4.0
4.5
9.2
12.5
–5.5
6.0
7.8
11.0
–7.0
7.5
6.5
9.5
–8.5
9.0
5.5
8.0
–10.0
10.5
4.6
6.5
–11.5
12.0
3.9
5.0
–13.0
13.5
3.3
3.5
–14.5
15.0
2.8
2.0
–16.0
16.5
2.3
0.5
–17.5
18.0
2.0
–1.0
–19.0
19.5
1.6
–2.5
–20.5
21.0
1.4
–4.0
–22.0
22.5
1.2
–5.5
–23.5
This specification is valid for mic 3 if line level setting is
selected.
Audio Outputs 1, 2 & 3
Signal levels
Signal
levels
Absolute max output
level
Nominal
level
Input
menu level
setting
[dB]
[Vpp]
[dBu]
[dBu]
0.0
1.2
–5.5
–23.5
1.5
1.4
–4.0
–22.0
3.0
1.6
–2.5
–20.5
4.5
1.9
–1.0
–19.0
6.0
2.3
0.5
–17.5
7.5
2.8
2.0
–16.0
9.0
3.3
3.5
–14.5
10.5
3.9
5.0
–13.0
12.0
4.6
6.5
–11.5
13.5
5.5
8.0
–10.0
15.0
6.5
9.5
–8.5
16.5
7.8
11.0
–7.0
18.0
9.2
12.5
–5.5
19.5
11.0
14.0
–4.0
21.0
13.0
15.5
–2.5
22.5
15.5
17.0
–1.0
This specification is always valid for output 2 and 3,
and for output 1 at volume setting 15.
Default levels are denoted as follows:
–31.4
NoTe:
The input clipping levels and the
absolute max output levels all assume
sinusoidal signals for the dBu values.
Tip:
To convert dBu values to dBV, subtract
2.2 dB from the dBu value.
example:
–10 dBu ≡ –12.2 dBV
Microphone
inputs 1–3
Audio outputs 1–3
Audio inputs 4–6
NoTe:
Audio inputs 4–6 are referred to as Line
input 1–3 in the API.