Hearing Aids & Cochlear Implants

Amplification from the inside out — styles and signal processing, prescription and real-ear verification — and the implantable spectrum beyond the hearing aid.

Hearing aids are the most common — and most under-used — treatment for hearing loss. This atlas builds the device from its components, through the signal processing that shapes sound, to the prescription and verification that make a fitting correct, then steps beyond to bone-conduction, middle-ear and cochlear implants.

Use the Reading level control in the sidebar to switch between Foundation, Trainee and Clinician depth.

Hearing aids

Beyond hearing aids

Practice & assessment

Test yourself against the clinical cases, self-assessment quiz and interactive tools. Your progress is saved locally and surfaced on the progress dashboard.