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NEDSP1061-KBD Operating Manual
Noise cancellation on/off:
Press and release the
button and the LED will go off indicating that the noise
cancellation is activated (green in 4 level mode). A short
beep will acknowledge the key press.
Changing the filter level:
Hold down the button. The
led will flash the filter level, and if the button is held it will
step through all the levels (4 or 8 depending on which
mode you are in), audio beeps also indicate the filter
level. Release the button to select a level. This new level
will be stored in memory and will be the default setting
the next time the unit is powered up (always powers up
with noise cancelling off).
6.3. Demonstration mode.
The NEDSP1061-KBD module features 2 preset
demonstration modes,
and the ability to select 4 or 8 filter
levels.
These demonstrate the noise cancellation abilities
of the NEDSP1061-KBD module and the filter level select
mode.
To listen to the demonstration modes, or change
the number of DSP levels it is necessary to put the module
into the set up mode:
6.3.1 Demonstration 1:
Hold down the button and switch on the equipment. After a
short time the unit will emit a 2 tone beep. Release the
button. The unit is now in demonstration mode 1.
The module will switch the noise cancellation on for 1.5
seconds, then off for 1.5 seconds. It will then move onto
the next level and repeat this continuously through all 4
levels.
This mode a particularly effective when the equipment is
just receiving static, as it demonstrates the attenuation of
white noise at all the levels.
Alternatively tune the equipment into a good quality FM
speech broadcast. This demonstration shows how little the
DSP alters the speech, at any of the levels.
6.
Operation.
