Clear One Converge Pro Manuel utilisateur

Converge Pro

White Paper

Converge Pro

Professional Conferencing Systems

White Paper

ClearOne Part Number 803-151-880 Rev 1.8. August 2009.

rights reserved. No part of this document

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ClearOne Communications, Inc. Printed

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subject to change without notice.

TABLE OF CONTENTS

CHAPTER 1: Introduction ..............................................1

Overview.......................................................................................................1

Converge Pro 880 Product Description .......................................................3

Converge Pro 880T Product Description ....................................................4

Converge Pro 840T Product Description ....................................................5

Converge Pro 8i Product Description .........................................................6

Converge Pro TH20 Product Description ....................................................7

Converge SR 1212 Product Description......................................................8

Converge Console Description ...................................................................9

Controls and Connections .........................................................................11

CHAPTER 2: Echo and Noise Cancellation ................15

Echo Cancellation .....................................................................................15

Noise Cancellation ....................................................................................16

CHAPTER 3: Processing Blocks..................................17

Filters..........................................................................................................17

CHAPTER 4: Inputs and Outputs ................................19

Mic\Line inputs ..........................................................................................19

Line Inputs .................................................................................................20

Outputs ......................................................................................................20

CHAPTER 5: Automatic Mic Mixing .............................21

Intelligible, Reliable Audio .........................................................................21

Microphone Parameters and Modes .........................................................22

CHAPTER 6: Audio Routing ........................................25

Matrix Mixing ..............................................................................................25

CHAPTER 7: System Control .......................................29

CHAPTER 8: Applications ...........................................33

Distance Learning .....................................................................................33

Courtroom ..................................................................................................33

Boardroom .................................................................................................34

APPENDIX: Specifications ...........................................37

Converge Pro 880 Specifications ..............................................................37

Converge Pro 880T Specifications ............................................................39

Converge Pro 840T Specifications ...........................................................41

Converge Pro 8i Specifications .................................................................43

Converge Pro TH20 Specifications ...........................................................45

Converge SR 1212 Specifications ............................................................46

Glossary .......................................................................49

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CHAPTER 1: INTRODUCTION

OVERVIEW

The Converge Pro™ product line provides a complete sound system for collaboration, presentation, distance

communications and any other multimedia audio event.

The Converge Pro audio system is extremely flexible allowing it to be used in a wide range of applications, with superior

audio quality. This is the result of combining ClearOne’s proprietary Distributed Echo Cancellation and ClearOne’s

advanced adaptive algorithms with powerful audio digital signal processing for automatic microphone mixing, signal

routing, equalization, automatic level control, compression and other audio processing functions. The Converge Pro

system uses a rapid configuration user interface for system setup, minimizing the time it takes to get a system up and

operational. The Converge Pro is the heart of custom installed audio systems.

For ease of use, Converge Pro systems facilitate local and remote PC setup, control, and diagnostics in addition to

compatibility with ClearOne Tabletop Controller and integration with popular control systems.

New Converge Pro Enhancements

Next generation ClearOne• ®Distributed Echo Cancellation®— improves full-duplex performance and remove

echo in the most difficult acoustic environments.

New PTT (Push-to-Talk) microphone compatibility provides greater design and configuration flexibility.•

Advanced noise cancellation reduces background noise caused by fans, HVAC systems, and other relatively•

constant background noise sources.

Signal processing with user-configurable filters (including all pass, low pass, high pass, low shelving, high•

shelving, and parametric), delay, and compression. ClearOne®’s unparalleled processing power enables

you to use all of these features simultaneously in any combination, allowing you to deliver optimized audio

configurations.

Enhanced expansion bus capabilities—connect up to twelve Converge Pro units together and use up to 96•

microphones and 16 phone lines for a single site.

Graphical, user-configurable routing matrix allows you to route any input channel to any output, processing, or•

fader channel (or combination thereof) on any Converge™ Pro unit, or across the expansion bus.

Front panel control of mute and gain for all input and output and output channels.•

ClearOne• ®’s DSP (Digital Signal Processing) technology ensures crystal-clear audio.

DARE™ Feedback Eliminator (880TA).•

AEC (Acoustic Echo Cancellation) Enhancements

Full-bandwidth (20Hz to 22kHz) echo cancellation•

Smoothing filters to reduce artifacts•

Pre-AEC bypass channels•

Improved AEC adaption and noise suppression algorithms•

Automated Push-to-Talk microphone mode•

Gain and gating control tracking•

Cross-point gain adjustments•

AGC (Automatic Gain Control) algorithm•

ALC (Automatic Level Control) algorithm•

2 www.clearone.com

Telephone Hybrid Enhancements (880TA, 880T, 840T, and TH20)

Custom telephone line settings for international teleconferencing and in-country localization

Type I & Type II auto-sensing telephone interface (U.S./E.U.)•

International impedance matching•

Improved TEC (Telco Echo Cancellation) with 31 millisecond tail time•

Continual TEC adaptation to telephone line conditions•

ClearEffect™ wideband audio emulation algorithm•

Digital anti-alias filter minimizes CO switching noise and hum•

ALC (Automatic Level Control) on telco receive channel•

Improved call management and processing•

Adjustable dial tone, DTMF attenuation•

Off-hook DTMF generation•

Robust dial tone detection•

Ringer selection•

Caller ID•

Touch-tone dialing capability (40 character dial string)•

Analog telephone line compatibility•

Product Line Features

Remote and local setup and diagnostics from any PC•

32 programmable presets for instant configuration changes•

Connect multiple Converge Pro’s to create a single system.•

Logic ports for external control and status monitoring•

Distributed Echo Cancellation on each mic input for greater echo cancellation flexibility and effectiveness•

Noise cancellation on each mic input to reduce unwanted ambient noise•

Advanced automatic mixer functions that minimize false activation of microphones including: Adaptive Ambient,•

First Microphone Priority and PA Adaptive Mode. Up to ten automatic mixer microphone groups can operate

across a single system

Telephone hybrid uses digital signal processing (DSP) to separate the transmit and receive audio, eliminating•

distortion, weak signals, and feedback as well as continually filters low and high frequency noise to provide pure

sound.

Increased distance (up to 200 feet) between each connected Converge Pro unit•

Fully configurable matrix which allows you to route any input to any output or combination of outputs•

Create up to 255 macros per unit•

3 www.clearone.com

CONVERGE PRO MIXER LINE - CHANNEL TABLE

*Power Amp wattage is based on 8ohm load.

Product

Mic/Line

Inputs

Line

Inputs

Power

Amp

Processing

Channels

Fader

Channels

Output Telco E-Bus

Converge Pro

880TA (New)

4 4 (35W) 8 0 8 1 Yes

Converge Pro

880T

4 1 (5W) 8 4 12 1 Yes

Converge Pro

880

4 8 4 12 0 Yes

Converge Pro

4 8 4 0 0 Yes

Converge Pro

840T

4 4 1 (5W) 4 4 8 1 Yes

Converge Pro

TH20

0 2 0 0 2 1 Yes

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CONVERGE CONSOLE DESCRIPTION

The Converge Console software provides a powerful, intuitive interface for configuring and controlling your Converge

Pro system. While you can use LCD Programming for some simple configuration tasks, you must use Console for the

advanced configuration tasks required to customize Converge Pro units for your application.

Rapid System Configuration

Console provides powerful Drag and Drop Configuration capabilities that allow you to quickly configure Converge Pro

devices and perform advanced system configuration tasks.

AV Devices

AV Devices are pre-configured input or output channel settings that can be dragged from a menu of devices and

dropped on to a channel to rapidly configure the channel. AV devices represent devices like microphones, DVD players,

video conferencing systems, amplifiers, etc. ClearOne provides numerous pre-configured AV devices, with settings that

optimize the performance of the device for a typical room. Beside ClearOne provided pre-configured AV devices, custom

AV devices can be created by the user of Converge Console.

Object Database

In addition to using AV devices, Converge Console allows you to create, save and apply, Channel, Matrix, Control,

Macro, and Preset Objects. Saved objects can be imported/exported between different computers. Types of objects are

described below.

Channel Objects

Channel objects allow you to save customized Channel configurations into the Database and reuse them. This

enables you to instantly re-configure the entire channel and to rapidly configure additional Converge Pro units

using drag and drop configuration.

Matrix Objects

Matrix objects allow you to save customized matrix configurations into the database and reuse them. This

enables you to instantly re-configure the entire matrix to accommodate changes in conferencing or venue

configuration requirements, and to rapidly configure additional Converge Pro units using drag and drop

configuration.

Control Objects

Control objects allow you to save control port objects into the database. After saving the control port object, it

appears in the object pane of Console. To apply a control object after saving it to the database, drag it from the

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