User's Manual

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PEQ (Parametric Equalizer): Center frequency range is 20Hz to 20kHz in .01Hz
increments. Bandwidth is .05 to 5 octaves in .01 octave increments. Level range is -
15 to +15dB in 0.5dB increments.
Gating Tab
l Max Number of Microphones: Max number of Microphones is 1-8 or All. If you are using
an INTERACTPRO All is equal to 8. If an INTERACT8i is linked to the PRO All is equal to 16.
l Gate Mode: Choose Auto, Manual On, Override On or PA Adaptive
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Select the Manual On radio button to gate the channel on, or Manual Off.
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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 ampli-
fier. 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.
l Adjust the sliders to modify Gate Ratio, Hold Time and Off Attn
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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.
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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 .1 to 8.0 seconds. The
default is .3 seconds.
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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.
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Decay Rate: Determines how fast a channel gates off after the Hold Time expires.
The default is Medium.
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Manual Off: Manually setting the channel to gate off, which applies the off atten-
uation level to that channel.
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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.
AEC Meter
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.
l 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.
l 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.
l 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.
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