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Eca 1 echo canceller module, Hw manual-10 – Rane ECS v2 Hardware (ECB 6 and ECM 8) User Manual

Page 10

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HW Manual-10

Warning: Proper static discharge measures must be

followed when installing or configuring this card.

Figure 11. ECA 1 Installation with ECM 82 Phantom Power and network termination jumper locations

AUX

ECHO CANCELLER

ECA 1 MODULE

TRANSMIT

IN

TRANSMIT

CTRL.

MIX

OUTPUT LED

DRIVER

+5V

+5V

SIGNAL

OL

E/C BYPASS

and

Suppressor

MIX

POST-GATE

PRE-GATE

OUT

OUT

CTRL.

Mixer Gate

INTERNAL

SELECT

OPTIONAL

IN

OUT

RECEIVE

301

301

-10dBu

-14dBu

Figure 10. ECA 1 Block Diagram (detail from Data Sheet Block Diagram).

ECA 1 ECHO CANCELLER MODULE

DESCRIPTION

The ECA 1 is a continually adaptive acoustic Echo

Canceller module for the ECM 82 Mixer using DSP technol-
ogy. Each ECM 82 Mixer allows the addition of an internal
acoustic Echo Canceller. Placing the Echo Canceller in each
Mixer reduces the number of acoustical echo paths for a
multi-microphone system, thereby improving the audio
quality of the system. This method of echo cancelling is
called MZEC™ MultiZone Echo Cancelling. See page HW
Manual-7.

Since the Echo Canceller automatically adapts to the

room, training is not required.

The ECA 1 installs by temporarily removing the top cover

of the ECM 82 and seating the module onto factory installed
standoffs on the motherboard.

After installing the Echo Canceller, disable

Echo Cancel-

ler Bypass in RaneWare (see the RaneWare Operators
Manual
).