ClearOne Due Diligence findings and other matters 07/20/2005 Converge Pro Presentation Confidential For Rep Use (internal only)

RAV 600/900 ClearOne Solutions Portfolio Price Performance Premium Conferencing Delivering superior audio performance in every conferencing space Professional Conferencing Converge Pro Converge 560/590 Personal Conferencing Chat 50 Tabletop Conferencing MAX IP, Wired & Wireless Chat Participants Desktop Executive Offices SOHO Road warrior 1-30 Participants Executive Offices Conference Room 8-30 Participants Conference Rooms Multimedia Rooms Video Conferencing Small Classrooms Boardrooms Participants Boardrooms Training Rooms Courtrooms Multimedia Rooms Distance Learning Auditoriums House of Worship

Introducing Converge Pro Series - Any Conference - Any Room - Any Media PRELIMINARY

Professional Conferencing product line – Converge Pro Series 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 Large-scale audio applications Models +Converge Pro 880 +Converge Pro 840T +Converge ProTH20 +Converge Pro 8I

Converge Pro Key Features- Connections & Communications  USB (Type B) Front Panel Control  Dual Port Ethernet Connection  PC Port  Network Port  Dual Port RJ-45 Expansion Bus Connection  Time Division Multiplexed Mix/Minus audio and control slots  Improved speed  Expanded distance to 125 feet between units  RS-232 Port  Up to 155 Kbaud  Cannot connect with console  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  Improved Adaption and Suppression routines  Automated Push-to-Talk microphone mode feature  AEC Freezing  Microphone Threshold  Pre AEC Channels  Bypasses AEC processing (4msec maximum delay)  Mixer feature additions  Gain/Gating control tracking  Cross Point Gain for channel volume control  4- Fader channels  Microphone Pre-Amp Gain  7dB Sets for improved microphone gain matching  Automatic Gain algorithms  Automatic Level Control  Automatic Gain Control

Converge Pro Key Features- Signal Processing  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- Console 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 C1  Create custom channel objects  Improved preset presentation  Automatically sets input row  Simplified check box on all frames

Converge Pro Key Features- System Diagnostics  Improved Signal Generator  White/Pink Noise Generator  Sweep Generator  Timed terminations  System Checks  Telco verification  Microphone checks  Output Checks  Clip/Presence Indications  Improved Metering  Peak & Hold Indications  Faster streaming

Converge Pro Key Features- Management  Timed Events  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 Key Features- Other  Convert/Compare Utility  Converts XAP site files to Converge files  Compare Converge files for parameter differences  Firmware Updates (XAP Net is built into the unit)  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 Mixer Line- Channel Table ProductMic/Line Inputs Line Inputs Processing Channels Fader Channels Outputs Channel Telco Channels G-Link Converge Pro Yes Converge Pro 8I Yes Converge Pro 840T Yes Converge Pro TH Yes

ClearOne Audio Experience  ClearOne uses advanced audio technologies to enhance user experience Gentner® Distributed Echo Cancellation for natural sounding conversations Noise cancellation technology to filter ambient noise and produce cleaner transmitted audio Advanced microphone gating for greater mic control EQ’s and filters and enhanced sound