SONNET audio processor
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THE CONCEPT OF EAS
Cochlear implant users with low frequency hearing benefit from additional acoustic
stimulation in the implanted ear as has been demonstrated in various scientific studies. This
combination of cochlear implant and acoustic stimulation is known as combined electric-
acoustic stimulation, or EAS. The term electric stimulation refers to the cochlear implant,
while acoustic stimulation refers to the acoustic amplification unit.
Especially in listening situations with background noise (background conversations, street
noise etc.), EAS can greatly improve speech understanding. Users of combined electric-
acoustic stimulation have also reported that sound quality and music perception are improved
compared to cochlear implant use alone.
Studies have also shown that it may take time for EAS use to show its full benefit. If you are
an EAS user and do not experience an immediate benefit, do not be discouraged.
