ClearOne Converge Pro - Manual (Page 114)

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NC (NOISE CANCELLATION)
NC (Noise Cancellation) is a process in which ambient (background) noise is removed from an input signal, with
no noticeable degradation in signal quality. NC is available on Mic Input (excluding SR 1212 and SR 1212A) and
Telco/VoIP Rx channels.
Accessing NC
With the Channel tab selected in the Center Pane, select the desired Mic Input channel on the Tree View tab in
the Site Pane, and press the NC button (located just below the Coarse Gain slider).
The Channel Property Configuration screen appears with the NC tab selected as shown below.