Taiden hcs-8300, Installation And Operation Manual

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8
2. CongressMatrix technology
In an ordinary conference system, the audio signals of
the microphones converge into one audio (floor)
channel which is transmitted to a PA system with only
one channel. For this reason, all system loudspeakers
get the same floor channel sound level. Differing voice
levels of orators cannot be leveled out by simply
adjusting the microphone volume. Due to feedback
from a loudspeaker influencing delegates’ nearby
microphone, a positive feedback loop is formed and
produces howl.
But due to the amassment and their close spacing
arrangement, long stem microphones greatly affect the
visual overall picture within the venue.
Therefore, in many high-level meeting rooms (e.g.
Parliament Hall), media matrices and boundary
condenser microphones are implemented to solve this
problem.
In a media matrix, the audio signal from any
microphone can be transmitted at any ratio to any
loudspeaker, thus system transmission gain can be
increased by an appropriate configuration. All
microphones are star connected. But installation,
debugging and operation are highly complex. Such a
solution should usefully only be applicable if the
microphones are within a fixed installation, controlled
by professional technical staff. Furthermore, only
discussion function is available. A media matrix
solution does not feature conference sign-in, voting,
simultaneous interpretation, video tracking and
intercom function.
To solve above-mentioned shortcomings, TAIDEN
successfully developed the proprietary
CongressMatrix
TM
technology (utility patent:
200620054419.6). HCS-8300 Series Paperless
Multimedia Congress System is the first Paperless
Multimedia Congress System in the world to integrate
an nx8 audio matrix processor (n is the number of
microphones connected in the system) in the Congress
Main Unit.
■
8 discrete audio outputs, including:

Line Output 1 / AESOut 1: 15 band graphical EQ
+ 8 band parameterized EQ + DRC (dynamic
range compressor)

Line Output 2 / AESOut 2: 5 band graphical EQ
+ DRC (dynamic range compressor)

Group output 1~6: 5 band graphical EQ + DRC
(dynamic range compressor) + time delay
(maximum delay time for 32 kHz sampling rate
is 1.5 s, maximum delay time for 48 kHz
sampling rate is 1 s)
■
Connectable to a multi channel independent PA
system (up to 8 channels). Each channel is
supplied with its proper audio signal. The audio
signal of each microphone can be routed to any
speaker at any ratio, thus “N-1” function can be
realized easily: (when the microphone in one area
is turned on, its audio signal is only routed to all
areas except to its own) avoiding acoustic feedback
(howl) when audio transmission gain is increased
■
8 channels group output function
■
Recording by group function
■
Gain and EQ (5 band) of each microphone
adjustable separately, fitting the individual orator’s
voice to achieve perfect speech pickup any time
■
Integrated high-pass filter (low-cut switch) to cut low
frequency elements from the audio when needed
■
Displays audio signal spectrum to determine howling
frequency which can be suppressed by adjusting
EQ parameters
■
2 audio line in (analog, digital, CobraNet/Dante) or 1
audio line in (analog, CobraNet/Dante) + 1
microphone input, gain and EQ for each input
adjustable separately. +24 V phantom power supply
at microphone input, condenser microphone can be
connected directly
■
Connectable to multi channel audio input or output
devices for versatile expansion of the system