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Ear Devices for Children With Audio Processing Difficulties

The central audio processing function is responsible for localizing and discriminating sound as well as prioritizing acoustic signals. Central audio processing disorder -- or CAPD -- in children can be present with or without a hearing disorder. Children diagnosed with CAPD are not treated with hearing aids unless a hearing disorder is also present. Regardless, the child may be fitted with an assistive learning device, or ALD. These amplify sound and can be used with hearing aids or as a standalone device.

  1. Personal Frequency Modulators

    • Personal frequency modulation systems provide a speaker with a transmitter microphone. The child with CAPD uses a receiver to pick up speech. This device works in the same manner as a radio station. These systems can be used wherever background noise is present, such as in a classroom or daycare center, and can be connected to a hearing aid to provide optimal hearing and understanding. These systems are the most commonly used for CAPD.

    Infrared Systems

    • In infrared systems, sound is transmitted with the use of infrared light waves. These devices are often used in the home setting to pick up television sound. While the television is adjusted to a normal comfortable sound level for other family members, the child with CAPD receives sound through an individual receiver. The child has the ability to adjust the sound to a comfortable volume.

    Induction Loop Systems

    • The induction loop system is most commonly provided by businesses such as museums and activity centers to help visitors with audio processing difficulties. Individual systems are also available. The speaker uses a microphone, which creates a current. This creates an electromagnetic field throughout the room, which is picked up and transmitted to the listening device. Induction loop systems can be connected to hearing aids, which are used to adjust volume.

    One-to-One

    • A one-to-one communicator uses a microphone to amplify sound. The sound travels directly into a hearing aid or headset, where the volume is adjusted. This enables the speaker to use a normal voice rather than needing to shout in order to be understood.

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