Because your day takes place in a peaceful park or in a loud restaurant, in a busy train station or on a relaxing beach, MED‑EL's unique technologies are designed to provide outstanding performance for real life – automatically.
Other processors require users to make frequent program or setting changes in order to enjoy an optimal listening experience. Superior front-end processing featuring Automatic Sound Management detects changing listening situations on the go, adapting automatically so you don’t have to.
How Automatic Sound Management Works
For cochlear implant sound processing to be effective, it is critical to compress the large (120 dB) acoustical dynamic range of normal hearing into an acceptable range for electrical stimulation (30 dB). To meet this challenge, all MED‑EL audio processors make use of the front-end processing strategy known as Automatic Sound Management (ASM). ASM consists of a dual stage Automatic Gain Control (AGC) providing a wide Input Dynamic Range (IDR) and automatic volume control.
Input Dynamic Range is one of the most important features in audio processor technology. Studies show that only a wide IDR allows for adequate speech perception in noise.1,2 All MED-EL behind-the-ear (BTE) processors feature an Input Dynamic Range of 75 dB. Therefore, all signals within the range of 25 dB and 100 dB SPL are processed. This allows for detailed processing of a very wide range of sound inputs.
Automatic volume control deals with the wide range of input levels occurring in everyday life, including soft speech and loud speech. Automatic volume control assures that speech perception in background noise is largely immune to variations in speech level, meaning that users of MED‑EL audio processors can understand soft and loud speech equally well as normal speech. Varying-level speech can be understood equally well as constant-level speech.3