Option Controls: Helium Speech Unscrambler/26Dsp3 - Amron AMCOM III series User Manual

4.6

OPTION CONTROLS: HELIUM SPEECH UNSCRAMBLER/26DSP3

The controls for the DSP3 Helium Speech Unscrambler (HSU) are located in the options
panel on the right side of the front panel as shown below.
ON/OFF SWITCH – Allows the selection of air (OFF) or helium (ON) operation. In
4.6.1
the OFF position, the divers' microphone signal bypasses the HSU. In the ON
position, the microphone signals are routed to the HSU and the tender can adjust
the controls as necessary.
TREBLE BOOST – Selects the amount of gain added to the High Frequency (HF)
4.6.2
portion of the divers' microphone signals. This compensates for the HF drop-off in
the sensitivity of most microphones. The TREBLE BOOST feature allows for
optimum frequency enhancement and improved intelligible speech from the diver's
voice.
2830A-UM
2830A THREE DIVER COMMUNICATOR USER MANUAL
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REV 5.0