Dynamic Level Adjustment; Best Mic On; Noise Detect; Expansion/Cascading - Harman AKG DMM14 U Manual Del Usuario

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Description
Level adjustment

Best Mic On

Noise Detect

Expansion for
cascading
DMM14 MANUAL
Noise Detect
5.5.1

Dynamic level adjustment

The master of all input channels is determined on an ongoing basis. This
value is used as the reference value.
If the input channel level is very close or over the reference value, this chan-
nel will be assessed as dominant and will be slightly attenuated. f the input
channel level is well below the reference value, this is assessed as ambient
noise and be severely attenuated.
If a channel is no longer assessed as dominant, this falls at 1 dB/second and
all other nondominant channels increase with the same constant so that the
master output level remains constant. The upward adjustment of a channel
takes between 3 ms and 5 ms.
5.5.2
Best Mic On
With two microphones that are positioned close together there is the
disadvantage that comb filter effects may arise by canceling the frequency
components To suppress these unnaturally dull or hollow signals, only the
microphone channel with the highest level is assessed as dominant and
switched on.
5.5.3
Noise Detect
Permanently present interfering signals, whose amplitude are large enough
to be assessed as dominant, but whose level and frequency changes are
too low, are not assessed as dominant.
Interfering signals such as noise from fans and air-conditioning units are
recognized and not used as activation criteria for microphone channels.
5.6

Expansion/cascading

Up to ten devices can be cascaded if the number of inputs on a single de-
vice are not sufficient.
The device has two 100 MBit/s Ethernet ports. These are used to exchange
control data and audio communication between cascaded devices.
This means that an automixing system can be realized with:
60 inputs
20 outputs
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