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Spectra VX
3
User’s Guide
Target Volume setting cannot be less than or equal to the Audio
Threshold setting or targets will not be heard.
VX
3
attempts to
maintain a minimum 8dB loudness separation between them.
That is, if you try to increase the Audio Threshold setting too
close to a corresponding Target Volume setting, the Target Vol-
ume will automatically increase in order to maintain an 8dB
loudness difference.
Modulation
Audio
Search Audio
Modulation
allows you to enable tar-
get audio modulation and to adjust its effect. Modulation is a
technique where progressively deeper targets have a progres-
sively weaker audio response (the
beep
). A shallow target pro-
duces a loud response, and a deep target produces a soft
response. If modulation is disabled, then
VX
3
attempts to pro-
duce the same response loudness regardless of target depth.
With modulation enabled, you can also adjust the
Range
set-
ting, which affects the strength of the modulation. A low setting
makes shallow and deep responses more similar in loudness,
and a high setting makes the modulation more pronounced.
Tip:
Modulation is most effective when you want to distin-
guish between deep and shallow targets of similar type.
For example, if shallow coins are likely to be clad and deep
coins are likely to be silver, then modulation will give you
that information in the audio response.
