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M
AX I
M
U
M
LEVEL 0
(D11) Highest output level setting (when the AN-001T is used and ANC operation is set to ACTIVE)
Set the upper limit of the ANC-activated output level.
–15, –12, –9, –6, –3, 0 (default) dB
Note: Settable level is 3 dB or more above the lower limit (lowest output level).
Setting Range
SA
M
PLE T I
M
E 20
(D12) Sampling time setting (when the AN-001T is used and ANC operation is set to ACTIVE)
Set the required time to measure ambient noise. The ambient noise level is determined by being averaged over
the set measuring time. When the measuring time is long, the output level changes slowly with the ambient
level. However, the change in output level is not susceptible to a sudden change in ambient noise level.
10, 15, 20 (default), 30, 60, 120,180, 300 secSetting Range
(D13) Gain ratio setting (when the AN-001T is used and ANC operation is set to ACTIVE)
G
AIN RATI
O
3:3
Set the degree of change in the output sound level to that in ambient noise level, which is displayed as the
ratio "ambient noise level : output level."
6:3, 5:3, 4:3, 3:3 (default), 3:4, 3:5, 3:6, 6:–3, 5:–3, 4:–3, 3:–3, 6:–3, 5:–3, 4:–3, 3:–3, 3:–4,
3:–5, 3:–6
Setting Range
When the ratio of output level to ambient noise level is
great, the degree of change in output level becomes
greater than that in ambient noise level.
The greater the amount of change in output level is, the
faster the output level reaches the upper limit or lower
limit, causing the sound volume not to change any more.
Contrary, when the ratio of output level to ambient noise
level is small, the degree of change in output level
becomes smaller than that in ambient noise level.
When the ratio of output level is positive, the output level
increases as the ambient noise level increases.
When the ratio of output level is negative, the output level
decreases as the ambient noise level increases.
For example, when the ratio "3 : 3" is selected, the output
volume level increases by 3 dB as the ambient noise
level increases by 3 dB.
Amount of change in output level (dB)
Amount of change
in noise level (dB)
3
36
6
-
3
-
6
0
(Reference level)
3:3 (Default)
3:
-
3
6:3
6:
-
3
(D10) Lowest output level setting (when the AN-001T is used and ANC operation is set to ACTIVE)
M
INI
M
U
M
LEVEL –6
Set the lower limit of the ANC-activated output level.
–18, –15, –12, –9, –6 (default), –3 dB
Note: Settable level is 3 dB or more below the upper limit (highest output level).
Setting Range