Setting Intellimix; Intellimix Parameters; Mixer Mode Descriptions - Shure IntelliMix SMC820 Manual Del Usuario

The SCM820 uses IntelliMix to select channels to open in a mix, while attenuating the gain of closed channels. IntelliMix is available in three presets and
can be customized to excel in any application where multiple microphones are used at once. In all modes (except Manual), MaxBus ensures that only one
channel is opened per sound source.

IntelliMix Parameters

Gating Style
Determines the way gain is applied to open channels.
Full
Channels open at full gain (as adjusted by the NOMA factor).
Relative
Channels open at a gain level that varies with the input signal level—
quieter signals receive less gain than loud signals. As the input signal
level increases, more gain is applied to the channel.
Gain Scaling
Determines off attenuation and its effect on the total system gain.
Fixed
Off attenuation is a fixed amount. Total system gain varies with the
number of open channels.
Adaptive
Off attenuation is adjusted to maintain a uniform system gain
comparable to that of a single open channel.

Mixer Mode Descriptions

The SCM820 features five mix modes: Classic, Extreme, Smooth, Custom or Manual.
Classic
Classic mode emulates the classic Shure SCM810 automixer (in its default
settings). It is renowned for fast-acting, seamless channel gating and
consistent perceived ambient sound levels. The Classic mode excels in
most applications, specifically sound reinforcement and teleconferencing.
Gating Style:
Gain Scaling:
Off Attenuation:
Last Mic Lock On:
Smooth
Smooth dynamically balances system gain between open and closed
channels. The system gain remains consistent by distributing gain across
channels to equal one open channel. It incorporates IntelliMix operating
principles into a gain sharing mixing style, making it ideal for broadcast and
recording applications.
Gating Style:
Gain Scaling:
Off Attenuation:
Last Mic Lock On:
Tip: Unroute all unused channels to the mix bus. This will ensure the
most consistent noise floor in Smooth mode.
All manuals and user guides at all-guides.com

Setting IntelliMix

Off Attenuation
The amount of attenuation applied to closed channels.
Last Mic Lock On
Avoids ambient dropout by keeping at least one channel open at all times.
The last channel opened remains open until another takes its place.
Number of Open Microphones Attenuation (NOMA)
System gain is attenuated as additional channels are opened in a mix. This
is configured per doubling of open channels, adjustable from 1– 6 dB for
each mix that has Gain Scaling set to Fixed.
Maximum Number of Open Microphones (Max NOM)
Restricts the number of microphones that can be open at a time in a mix.
This is adjustable from 1 ("filibuster mode") to maximum (unlimited).
Hold Time
Determines the minimum amount of time that a channel is gated open.
Full
Fixed
−15 dB
Enabled
Relative
Adaptive
Disabled
Disabled
Channel Gain in Classic Mixer
1 Talker
-15 dB
Full gain is applied as the
channel opens; off attenuation
gain is applied to all channels.
-15 dB
-15 dB
Channel Gain in Smooth Mixer
1 Talker
-15 dB
-15 dB
Relative gain is applied to the
open channel; all channels
adaptively attenuate to maintain
system gain.
-15 dB
2+ Talkers
-15 dB
As additional channels open,
NOMA factor decreases the
level of all channels.
-15 dB
-15 dB
2+ Talkers
-15 dB
-15 dB
As additional channels open,
gain is adaptively distributed
across all channels to
maintain system gain.
-15 dB
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