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48 Technical Support: 800-283-5936
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• Max Number of Microphones : Max number of Microphones is 1-8 or All . If you are using an
INTERACT Pro the All setting is equivalent to 8. If an INTERACT Pro 8i is linked to the INTERACT Pro, the
All setting is equivalent to 16.
• Gate Mode : Choose Auto , Manual On , Override On or PA Adaptive
° Select the Manual On radio button to gate the channel on, or Manual Off .
° PA Adaptive Mode : A gating configuration setting that uses the audio level on a specified output
as the new ambient level when audio is present at the power amplifier. This prevents loudspeaker
audio from gating on the mic while still allowing people in the room to gate on microphones when
they speak (provided that their voices are louder than the loudspeaker audio). For example, you
might decide to play background music from a CD player during a presentation. PA Adaptive Mode
allows you to use the output routed from the CD player as the ambient reference to prevent the CD
player’s audio from gating on microphones. The default is OFF.
• Adjust the sliders to modify Gate Ratio , Hold Time and Off Attn
° Gate Ratio : Specifies how much louder than the ambient level the audio level must be before the
channel automatically gates on. The Gate Ratio Range is from 0 to 50dB, the default is 15dB.
° Hold Time : Determines how long the channel stays gated on after the audio falls below the Gate
Ratio threshold. The Hold Time Range is from 0.1 to 8.0 seconds, the default is 0.3 seconds.
° Off Attenuation : Sets the amount of level reduction applied to a channel when it is gated off. The
Range is from 0 to 60dB, the default is 12dB.
° Decay Rate : Determines how fast a channel gates off after the Hold Time expires. The default is
Medium.
° Manual Off : Manually setting the channel to gate off, which applies the off attenuation level to that
channel.
° Check the Chairman Override box to provide gating priority of the selected mic over any of the
others. When a mic with Chairman Override enabled gates on, all mics which do not have Chairman
Override enabled will gate off.
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This tab provides monitoring information for the INTERACT Pro AEC functionality. The three graphs report
AEC levels for
Echo Return Loss , Echo Return Loss Enhancement and Total Echo Reduction on each
Mic channel. This tab also provides a mute/gating led on each mic channel. If the LED is lit Red, that channel
is muted.
• Echo Return Loss ( ERL ): Shows the difference between the reference signal level and the input level to
the echo canceller. This is an average meter that updates when a receive-only signal is present.
• Echo Return Loss Enhancement ( ERLE ): Shows the loss through the echo cancellation and non-
linear processing chain—the difference of the two levels. This is an average meter that updates when a
receive-only signal is present.
• Total Echo Reduction : Shows the total ERL and ERLE reduction. This is an average meter that updates
only when a Receive-Only signal is present.