User`s manual

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7.12 Pass Thru Filter
Application:
The Pass Thru Filter is used to pass audio through the MicroDAC IV without applying any filtering
algorithms within the stages (except by the bandwidth limitations of the sampling frequency). An
easy way to bandlimit the audio is to configure a Mono Single or Stereo-Linked Stage Mode. The
audio is only affected by the Limiter, Input Highpass Filter, Output Lowpass Hiss Filter, and the
Output AGC. These features can be used in conjunction with the Pass Thru filters for signal level
adjustment.
Figure 7-27: Pass Thru Filter Selection
There are no control options for a Pass Thru filter.and the Control button is deactivated when the Pass
Thru filter is selected for a stage.
7.13 Two Channel Adaptive Filter
Application:
The 2CH Adaptive filter is used to automatically cancel from the Primary (Left) input any audio which
matches the Reference (Right) input. For example, the Primary (Left) input is microphone audio with
desired voices masked by radio or TV sound. The radio/TV interference can be cancelled in real-
time if the original broadcast audio, usually available from a second receiver, is simultaneously
connected to the Reference (Right) input.