SoundClear Enables Echo Free, Noise Free PerformanceMesa, AZ, October 4, 2006--Acoustic Technologies, a leading developer of high quality full-duplex speakerphone solutions today announced Spracht's Aura Mobile BT Bluetooth conferencing device is based on Acoustics' SoundClear® solution. Spracht utilized the SoundClear technology to provide echo cancellation, noise reduction, and sound