icListen AF User Guide
© December, 2017
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5.1.3
Gain
In
icListen AF
, gain may optionally be applied to 16-bit waveform data. Applying gain affects the
dynamic range of the instrument, by increasing the minimum amplitude signal which can be detected by
an instrument, and decreasing the maximum amplitude signal which can be measured by the
instrument. This behavior makes increasing gain desirable in quiet environments where important
information could be otherwise lost, but undesirable in loud environments where data would be lost
due to “clipping” of the signal if gain were applied
.
icListen AF
samples waveform data at 24bits, and makes use of gain to allow access to the low 8bits of
data which would otherwise be lost when returning only 16bits.
5.1.4
Duty Cycling
When storing waveform data,
icListen AF
can also perform duty cycling, to reduce the amount of data
logged internally. The cycle length, and active portion of the duty cycle can be configured with 1 minute
resolution, and the first active phase of logging will begin when the configured start time has been
reached.
