Dead Regions Detector
Unmask Hidden Hearing Gaps
Hearing loss does not always affect the inner ear evenly. In some cases, certain sound frequencies stop being processed effectively, creating “dead regions” within the cochlea. People may notice distorted sound quality, poor clarity despite amplification, or limited benefit from hearing aids. These changes often develop gradually and are not always obvious on standard hearing tests.
Identifying Cochlear Dead Regions Accurately
Pinpointing Where Hearing No Longer Responds Normally
The threshold equalising noise (TEN) Test is designed to identify areas of the inner ear where sound is no longer processed effectively, known as cochlear dead regions. During the test, tones are presented alongside a specialised masking noise. If a tone becomes much harder to hear in the presence of this noise, it suggests reduced or absent function in that frequency region.
At Harley Street Audiovestibular Clinic, TEN testing is carried out as part of a detailed hearing assessment and is non-invasive and well-tolerated. The test provides critical information for understanding sound distortion and guides safe, effective hearing management rather than relying on trial-and-error amplification.
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Trusted by Patients,
Proven by Results
Pinpointing the Cause
Clarity Before Intervention
Dead Zone Decoders
Assessment begins with a detailed history, ear examination, and comprehensive hearing tests, including Pure Tone Audiometry and speech-based measures. We recommend TEN testing when hearing quality, amplification benefit, or clarity does not match routine results.
Management is non-surgical. Findings guide hearing aid programming, frequency-specific strategies, or monitoring. Further investigation or referral is considered only when results suggest broader involvement of the auditory pathway or when hearing difficulties persist and affect daily communication despite appropriate support.
Revive Ruin with Our Rigour
At Harley AVM, TEN testing is interpreted by clinicians with physician expertise in complex hearing loss and cochlear function. Our focus on audiovestibular medicine allows us to integrate TEN findings with speech understanding, listening effort, and real-world hearing needs. We prioritise clear explanation and shared decision-making so patients understand what the results mean for their hearing options.
Testing, hearing planning, and follow-up are coordinated through one clinic, ensuring continuity of care. If hearing aids feel ineffective, sound quality remains distorted, or clarity continues to decline, we invite you to book an assessment, request a call back, or submit an enquiry to explore personalised next steps with our team.
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Conditions We Are Treating At Harley Street Audiovestibular Clinic
Expert Medical Care for Hearing, Tinnitus & Balance
Request An Appointment With One of Our Consultants
If you are living with dizziness, vertigo or unsteadiness, our team can help identify the cause. Your consultant will carry out the right combination of tests, explain the results in clear language and agree a treatment plan with you - so you know exactly what is happening and what can be done.