Audio and Acoustics Research HOME COMPANY RESEARCH & DEVELOPMENT PRODUCTS Consumer Audio Pro Audio & Broadcast Microphone Technologies Stereo to 5.1 Surround Upmix Surround Transmission as Stereo Signal Voice & Telephony SERVICES CONTACT US Enhance your horizons. Pro-Audio & Broadcast These technologies enhance microphone functionality and performance by means of digital signal processing and ease the upgrade to surround in broadcasting. The three categories of Illusonic's pro-audio and broadcast technologies are: – Microphone Technologies – Stereo to 5.1 Surround Upmix – Surround Transmission as Stereo Signal   Copyright © Illusonic LLC, Switzerland, 2006-2010. All Rights Reserved.