Introduction to Soundfield Systems Trouble shooting cochlear implants: day-to-day management, including FM systems   Richard Vaughan Connevans Ltd

Enhance the Listening Experience

Benefits the Tutor

Benefits the student

What is soundfield? A Soundfield is an amplification system which provides an even spread of sound around the room. A typical 'soundfield' consists of a microphone worn by the teacher, a wall mounted amplifier and wall mounted speakers around the classroom.

CLASSROOM WITHOUT SOUNDFIELD SYSTEM INSTALLED Teacher raises their voice level attempting to be heard at back of class, risking voice strain.   Clarity deteriorates over distance resulting in students at the back of class not hearing as well as those at the front. Students may loose concentration.

CLASSROOM WITH SOUNDFIELD SYSTEM INSTALLED Teacher speaks at normal voice level, avoiding voice strain.   Soundfield amplification means that all students hear at the same level wherever seated in the classroom, maintaining interest and attention of the students and providing a better learning environment.

What is soundfield? clarity not volume!

Integration with existing multimedia For NDCS Internal Use Only

Two channel receivers A second transmitter may be added for student participation or teaching assistant  For NDCS Internal Use Only

Connecting to radio aids “Most deaf children who wear hearing aids or cochlear implants continue to need the superior S/N ratio provided by personal FM systems” (Crandell et al, 2004). For NDCS Internal Use Only

Infra-red technology No radio licensing required No interference with radio aids Any number of IR systems may be used on a site For NDCS Internal Use Only

The IR Swift Excellent speech clarity Virtually no installation Stylish design Very low profile ‒ non intrusive unit For NDCS Internal Use Only

irSwift installation For NDCS Internal Use Only

A single speaker solution Wide angle of sound dispersion using flat panel speaker technology, creating an effective soundfield from a single speaker For NDCS Internal Use Only

Best quality sound coverage in a secure wall unit IR Classmate Best quality sound coverage in a secure wall unit

IRR-30P A conventional easy to use value system with two transmitters as standard

Transmitter types SwiftTX pendant microphone Lavalier microphone Collar-worn microphone Lavalier microphone Handheld microphone For NDCS Internal Use Only

Building Bulletin 93 www.teachernet.gov.uk/acoustics Section 6: Acoustic design and equipment for pupils with special hearing requirements www.teachernet.gov.uk/acoustics

Thank you www.connevans.com/soundfield richard@connevans.com