ClearOne Due Diligence findings and other matters

©2007 ClearOne Communications. Confidential and proprietary.

ClearOne Due Diligence findings and other matters07/20/2005

Converge Pro PresentationJune 2007


Introducing Converge™ Pro Series

- Any Conference

- Any Room

- Any Media


Perfo

rman

ce

Price

PersonalConferencing

TabletopConferencing

ProfessionalConferencing

PremiumConferencing

ClearOne Solutions PortfolioDelivering superior audio performancein every conferencing space

Chat 50

Chat 150

MAX IP, Wired, & Wireless

RAV 600 & 900

Converge 560 & 590

XAP

Converge Pro

1-15 participants- Desktop- Executive offices- SOHO- Road warrior

1-30 participants- Executive offices- Conference rooms

8-30 participants- Conference rooms- Multimedia rooms- Video conferencing- Small classrooms- Boardrooms

20-200 participants- Board rooms- Training rooms- Courtrooms- Multimedia rooms- Distance learning- Auditoriums- Houses of worship


Professional Conferencing product line – Converge Pro Series

Key Benefits

+ Superior audio> ClearOne next generation algorithms

> Field proven technology

+ Configuration flexibility> More models

> Improved SR feature sets

+ Improved ease of use> Simplified programming

> Reduced installation times

+ World-class customer service> Tech support

> Field engineering

> Certification training

The ultimate solution for large-scale audio applications

Models+ Converge Pro 880+ Converge Pro 840T+ Converge Pro TH20+ Converge Pro 8i


Converge Pro Mixer Line – Channel Table

Product Mic/Line

Inputs

Line

Inputs

Processing

Channels

Fader

Channels

Output

Channels

Telco

Channels

Expansion bus

Converge Pro 880 8 4 8 4 12 0 Yes

Converge Pro 8i 8 4 8 4 0 0 Yes

Converge Pro 840T 4 4 4 4 9 1 Yes

Converge Pro TH20 0 2 0 0 2 1 Yes


Converge Pro Key Features – Connections & Communications

+ USB (Type B) Front Panel Control – connect to Console configuration software+ Dual Port Ethernet Connection

> PC Port – directly connect to Console configuration software> Network Port – remote connection for administration & SNMP/SMTP functions

+ Dual Port RJ-45 Expansion Bus Connection> Time Division Multiplexed Mix/Minus audio and control slots> Improved speed > Expanded distance to 200 feet (61 meters) between units

+ RS-232 Port> Up to 155 Kbaud> Dedicated to 3rd-party control connection (cannot connect with Console software)

+ GPIO Ports> Dual Port DB-25

+ Mini-Phoenix audio channels connectors> Color coded based on channel type> Differential inputs/outputs


Converge Pro Key Features – Signal Processing

+ Acoustical Echo Cancellation Feature Additions> Smoothing Filters to reduce artifacts

+ Automated Push-to-Talk microphone mode feature> AEC Freezing

> Microphone Threshold

+ Pre AEC Channels> Bypasses AEC processing (4 msec maximum delay)

+ Mixer feature additions> Cross Point Gain for channel volume control

> 4 Fader channels for simple mixes

+ Microphone Pre-Amp Gain > 7dB Sets for improved microphone gain matching

+ Automatic Gain algorithms> Automatic Level Control – fast-acting compander (compressor/expansion/

downward expander) – improved to eliminate noise floor pumping

> Automatic Gain Control



Processing flow diagram



+ Telco feature additions> Caller ID

- Type I & Type II (US/EU)

> Noise Cancellation on receive channel

> ClearEffect algorithm

> Receive Automatic Level Control (ALC)

> G-Link (TH20)

+ Call Management/Processing additions> Ringer selection

> Robust dial tone detection scheme

> Improved ringer detection

> International impedance matching

> Off-Hook DTMF Generation


Converge Pro Key Features – new 8i input-only box

+ Features 8 mic/line inputs & 4 line inputs+ Lower price point compared to Converge Pro 880+ Allows integrators to economically add more inputs without adding more outputs

> More closely match number of inputs & outputs required


Microphone Channels

Input Impedance 5Kohm

Analog Gain Selectable 0 to 57 dB in 7 dB steps

Frequency Response 20 Hz to 20 kHz

Noise (EIN) -126 dBu at max gain (R=150 ohm)

THD + Noise <0.02%

SNR 80 dB ref 0 dBu (A-weighted)

Phantom Power 24V DC

AES48 Compliant Spec for grounding & shielding of connectors in audio equipment


+ Acoustical Echo Cancellation> Tail Time: 130 msec

> 4 Virtual Reference Buses

> Selectable NLP - 6,12,18 dB

+ Noise Cancellation> Selectable 6-15dB

> Effective on wideband sources

+ Pre-AEC Channel> Synchronized Controls

> Additional 16msec delay if ALC enabled

+ Auto Gain Modes> AGC – Range: -30 to 20dB

> ALC – Compander with adaptive knee

+ Filters> 4 Nodes

> PEQ, LP, HP, AP, Notch

Microphone Channels


Input/Output Channels

+ Input Impedance: 5Kohm+ Line Level+ Adjustable AGC

+ Output Impedance: 50 ohm+ Line Level+ NOM Attenuation


Processing Channels

+ 8 or 4 processing channels+ Filter bank

> Cross-over (4 max): Butterworth, Linkwitz-Riley, Bessel > Other: LP, HP, HS, LS, Notch, All

+ Delay> 0-250 msec

+ Compressor> Adjustable targets, thresholds, attach> Compressor group control


Fader Channels

+ 4 channels on each unit+ Simple mixes+ Gain Control: -65 to +20+ Mute+ Meter


Expansion Bus Channels

+ High speed TDM bus+ Mix-minus bus structure+ 12 mix bus channels

> O-R : NOM

> S-Z : Auxiliary Mix

+ 4 expansion bus reference + 4 global mixer groups

> 1st mic priority

> Max mics


Auto Mixer

+ Maximum Number of Microphones - 64+ 1st Mic Priority+ Adaptive Ambient+ PA Adaptive + Chairman Override+ Gating Groups

> 4 Internal Gating Groups

> 4 External Gating Groups

> 1st Mic Priority, Max Mics, Last Mic

GATERATIO

OFFATTENUATION

LEVEL

M ICROPHONEON

M ICROPHONEGATED OFF

HOLDTIM E

DECAY RATE

AM BIENTLEVEL

M ICROPHONEAUDIO

FAS

T

ME

D.

SLOW


Matrix Mixer

+ 24 x 24 I/O matrix+ Mic channels selectable

> Gated

> Non-gated

> Pre-AEC (gated)

+ Cross-Point Gain> -60 to +12 dB


Converge Pro Programming

+ Enhanced Views> Unit View

- Route indications/table- Drag & drop A/V devices- High level audio controls

> Channel View- Access to all signal processing- Set cross point- Channel object drag & drop

+ Database Builder> Create custom A/V devices or use

ClearOne-defined devices

> Create custom channel objects

+ Improved preset presentation> Automatically sets input row

> Simplified check box on all frames


Converge Pro Configuration/Control

+ Presets – Configure full unit or individual areas> 32 Presets

> Audio routes

> Channel properties

> GPIO

> Macro

+ Macro – Create command scripts quickly> 255 Macros with ~150 commands each

> Macro recorder

+ GPIO> Inputs: Active low

> Outputs: Open collector, 40Vdc, 40mA

> Power: +3.3V

> Serial Command Activation (new)

+ Strings> 7 string-based command strings


Converge Pro – System Diagnostics

+ Improved signal generator> White/pink noise generator

> Sweep generator

> Selectable time-out

+ System checks> Telco verification

> Microphone checks (based on AEC references)

> Output checks

> Clip/presence indications

+ Improved metering> Peak & hold indications

> Faster streaming


Converge Pro – Management

+ Timed events> 12 per unit, obtain timing from NTP server or local clock

+ Simple Network Management Protocol (SNMP) agent> ClearOne MIB with traps & get/set> Interface with enterprise management consoles (HP OpenView)

+ Simple Mail Transport Protocol (SMTP)> Send emails to maintenance personnel

on traps

+ Embedded web server> Remote maintenance from web pages> Audio control/monitoring of channels> Site wide dial & control page> Site firmware updates> Access from standard web browser

+ Control API improvements> GPIO status command> Delay command> System checks

+ Event/device logging


Converge Pro – Other

+ Convert/Compare utility> Converts XAP site files to Converge files

> Compare Converge files for parameter differences

+ Firmware Updates> Point to Point mode

> Point to Multipoint mode (Expansion Bus)

> Update from Web or Console application

+ Security> Three access levels

> Administrator, Maintenance, End User

> Password verification

+ Front Panel Control> Channel Gain/Mute control

> Configuration Settings

> Preset & Macro execution


Converge Pro – Pricing

Product MSRP Pricing

Converge Pro 880 $5445

Converge Pro 8i $4350

Converge Pro 840T $4250

Converge Pro TH20 $1195


Converge Pro – Availability

+ Market beta units and beta software shipping – week of June 18+ Beta period ends – early August 2007+ Converge Pro production begins – early August 2007+ Converge Pro begins shipping – early September 2007


Converge Pro Programs & Promotions

+ Demo Equipment Purchase Program> Obtain a single Converge Pro at up to 65% off list price

+ XAP to Converge Pro Upgrade Program> Obtain attractive discount for trade-in of any ClearOne or competitive products when

replaced with a Converge Pro equivalent


ClearOne Due Diligence findings and other matters07/20/2005

ClearOne Due Diligence findings and other matters

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