Manual Aqua M300D
page 17
When working in the field, the setting for the low-pass filter is ideal when all the high-frequency sounds lie within the
selected range and the high-pass filter is set so that the bottom left-hand sector of the selection box is on the right-hand
sloping flank of the biggest part of the spectrum.
Press the Cancel key or the lower frequency display (1) to leave the window.
Activating the Headphones during Filter Adaptation
The Aqua M300 features a function for the activation of the headphones while the filters are being set.
This function can be switched on or off by pressing the key on the left (2). The status symbol for the acoustic activation in
the window (4) will indicate the current status of the function.
When this function is active, the sound from the microphone is passed on through to the headphones while the filter is being
adapted.
This means that you can either enter numerical values to set the limits for the frequency ranges you wish to select or you
can set the limits using the acoustic method.