Biamp NE-XIA VC User Manual

Nexia® VC

Videoconference DSP

Nexia VC is a digital signal processor with 8 wide-band AEC mic/line inputs, 2 standard mic/line inputs,
4 mic/line outputs, and a codec interface. Intended for a variety of videoconferencing applications,
Nexia VC uses Biamp’s proprietary Sona™ AEC algorithm for more natural sound and full-duplex
transmission of speech. Nexia VC includes a broad selection of audio components, routing options, and

signal processing. The internal system design is completely user denable via PC software, and can

be controlled via daVinci™ software screens, RS-232 control systems, and a variety of optional remote
controls. Multi-unit Nexia systems can be created utilizing Ethernet and NexLink digital audio linking.

FEATURES

• 8 wide-band AEC balanced mic/line inputs

• 2 standard balanced mic/line inputs

• 4 balanced mic/line outputs

• codec interface with balanced line input & output

• Ethernet port for software conguration/control

• serial port for third-party RS-232 remote control

• NexLink ports for multi-unit system designs

• Nexia software for Windows® XP Professional/Vista

• pre-congured I/O with denable processing

• RoHS compliance and AES grounding practices

• CE marked and UL/C-UL listed

• covered by Biamp Systems’ ve-year warranty

• Ability to select, view, and calibrate:

Mixers: standard, automatic, matrix, combiners

°

Equalizers: graphic parametric, feedback

°

Filters: HPF, LPF, high shelf, low shelf, all-pass

°

Crossovers: 2-Way, 3-Way and 4-Way

°

Dynamics: leveler, comp/limiter, ducker, ANC

°

Routers: 2x1 ~ 32x32

°

Delays: 0 ~ 2000ms

°

Controls: levels, presets, logic, RS-232, etc.

°

Meters: signal present, peak, RMS

°

Generators: tone, pink-noise, white-noise

°
° Diagnostics: transfer function

ARCHITECTS & ENGINEERS SPECIFICATION

The videoconference DSP shall provide eight wide-band Sona™ AEC balanced mic/line inputs, two standard balanced
mic/line inputs, four balanced mic/line outputs, and codec audio input/output on plug-in barrier-strip connectors.
Inputs and outputs shall be analog, with internal 24-bit A/D & D/A converters operating at a sample rate of 48kHz.
All internal processing shall be digital (DSP). NexLink connections shall allow sharing of digital audio within multi-unit
systems.
Software shall be provided for creating/connecting DSP system components within each hardware unit. Available

system components shall include (but not be limited to) various forms of: mixers, equalizers, lters, crossovers, dynamics/

gain controls, routers, delays, remote controls, meters, generators, and diagnostics. Ethernet communications shall be

utilized for software control and conguration. After initial programming, processors may be controlled via dedicated

software screens, third-party RS-232 control systems, and/or optional remote control devices. Software shall operate
on a PC computer, with network card installed, running Windows® XP Professional/Vista. The videoconference DSP shall
be CE marked, UL listed, and shall incorporate AES48-2005 Grounding & EMC practices. The videoconference DSP shall

be compliant with EU Directive 2002/95/EC, the RoHS directive. Warranty shall be ve years.

The videoconference DSP shall be Nexia® VC.

Biamp Systems, 10074 S.W. Arctic Drive, Beaverton, Oregon 97005 U.S.A. [phone] www.biamp.com

Nexia VC SPECIFICATIONS

24VDC @ 0.5A

term hi lo

Ethernet

NexLink Tx

NexLink Rx

2 14 3 4 36 58 710 9 2 1

outputs

CAUTION

RISK OF ELECTRICAL SHOCK.

DO NOT OPEN.

Remote

Control Bus

mic/line inputs AEC inputs

serial

codec
output

codec
input

U

L

R

CUS

52SJ

LISTED

Class 2

wiring

100-240V

~

50/60Hz

65 Watts, 1.0 A

BIAMP SYSTEMS

designed and assembled in the USA

www.biamp.com

MicroProcessor

DSP Cluster

RS-232

Remote

Control

Bus

Memory

TCP/IP
Control

Comms

Analog

Inputs

A/D D/A

Analog

Outputs

NexLink

Rx

NexLink

Tx

Frequency Response (20Hz~20kHz @ +4dBu): +0/-0.4dB

THD+N (20Hz~20kHz @ +4dBu):
line level < 0.006%
mic level < 0.05%

Equivalent Input Noise
(20Hz~20kHz, 66dB gain, 150 ohm): -125bBu

Dynamic Range (20Hz~20kHz, 0dB): > 105dB

Maximum Gain (input channels): 66dB

Crosstalk (channel-to-channel @ 1kHz):
line level < -80dB
mic level < -75dB

Input Impedance (balanced):
mic/line inputs 8k ohms
codec input 15k ohms

Input Gain Range (variable trim):
mic/line inputs 0dB ~ +66dB
codec input 0dB ~ +18dB

Maximum Input (mic/line): +24dBu

Nexia VC REAR PANEL DIAGRAM

Output Impedance (balanced): 200 ohms

Maximum Output (balanced): +24dBu

Full Scale Output Level (six selections) -31dBu ~ +24dBu

Tail Length: up to 300ms

Convergence: up to 100dB/sec

Sampling Rate: 48kHz

A/D - D/A Converters: 24-bit

Phantom Power: +48 VDC (7mA/input

Power Consumption (100~240VAC 50/60Hz): 65 watts

Dimensions:
height 1.75 inches (45mm)
width 19 inches (483mm)
depth 11.15 inches (283mm)

Weight: 8.6 lbs. (3.9kg)

Compliance: AES48-2005 Grounding & EMC practices

EU Directive 2002/95/EC, RoHS directive

CE marked

UL listed

Nexia VC BLOCK DIAGRAM

Biamp Systems, 10074 S.W. Arctic Drive, Beaverton, Oregon 97005 U.S.A. [phone] www.biamp.com

1Feb10