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Tone Decay Test – Acoustic Reflex Assessment

A swift, painless way to reveal hidden auditory

tone decay test

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What Is the Tone Decay Test?

The Tone Decay Test is a gentle yet powerful evaluation that measures how long your auditory nerve can hold a continuous tone at the softest audible level. If the tone “fades” too quickly and must be raised to stay audible, it signals auditory fatigue, often linked to nerve-related hearing problems. Paired with an Acoustic Reflex Assessment – which checks the automatic middle-ear muscle response to louder sounds – this dual test uncovers subtleties a routine audiogram can miss, giving a fuller picture of your hearing health.

 

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Why Are These Tests So Important?

Hearing is more than detecting beeps; it is sustaining sounds and processing them reliably. A normal audiogram might show that you hear faint tones, yet if your nerve cannot keep those tones alive for long, speech will seem to drop out in real-life conversations. Identifying tone decay early helps distinguish cochlear issues from nerve or brainstem disorders, guiding accurate medical or audiological care. Likewise, abnormal acoustic reflexes can pinpoint middle-ear stiffness, auditory-nerve disorders, or even early signs of an acoustic neuroma. Early detection lets you seek treatment before minor frustrations become major obstacles.

 

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Audiocare’s Personalised Approach

At Audiocare we never rely on one test alone. Our highly qualified audiologists combine the Tone Decay Test and Acoustic Reflex Assessment with a full case history, otoscopy and, where relevant, speech-in-noise testing. We use state-of-the-art calibrated immittance analysers that detect the tiniest reflex changes, ensuring precision while keeping stimulus levels within safe diagnostic limits. Every step is explained in plain UK English. Should you feel uneasy at any point, we pause, readjust and proceed at your pace. After the test, results are translated into everyday language and woven into a plan tailored to your lifestyle – whether that means referral for medical imaging, bespoke hearing-aid settings, or simple monitoring.

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Benefits to your care

Undergoing the Tone Decay Test and Acoustic Reflex Assessment at Audiocare gives you far more than raw numbers on a chart; it delivers diagnostic certainty that distinguishes inner-ear damage from nerve or brain-stem disorders, ensuring the treatment you receive truly matches the source of the problem. Armed with this precision, our audiologists can programme your hearing aids to amplify gentle sounds while controlling sudden peaks, sparing you discomfort and clarifying everyday speech.

Just as important, seeing objective evidence that validates your listening difficulties provides real psychological reassurance—patients often leave feeling heard, understood and empowered to take control of their hearing journey. Finally, your results serve as a reliable baseline for monitoring progressive conditions such as Ménière’s disease; by detecting subtle shifts early, we can adapt your care plan long before major changes affect your quality of life.

Book your appointment today and take a proactive step toward maintaining and improving your hearing health.

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Our Approach

01

Initial Consultation

At first, an anamnesis is carried out by a health professional with the patient, which is intended to be an initial point in the diagnosis.

02

Diagnosis

Primary and complementary tests are carried out to diagnose the type of hearing loss that will explain why it is difficult to hear.

03

Recommendation

According to the results of these tests, if hearing loss is proven, a hearing aid will be recommended, which may vary in type and model.

Testimonials

GLAUCO DAMAS
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GLAUCO DAMAS
28/10/2016
Silvia Klein
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Silvia Klein
12/02/2018

Super Service. Sehr gute Betatung

Mykhailo Moisei
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Mykhailo Moisei
18/03/2021
David Grasmeijer
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David Grasmeijer
17/12/2020

Great physiotherapist. My Family has been going there for years.

Johno Lelliott
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Johno Lelliott
30/03/2023

Great service

Bob Saarloos
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Bob Saarloos
11/04/2023

Uitstekende manueel therapeut.

Sally Beale
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Sally Beale
27/08/2021

My husband is very pleased with his new ears.

Graham Dexter
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Graham Dexter
13/05/2022

Very professional service. Kate was very pleasant. Unfortunately too expensive for my budget.

Lucinda Santos
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Lucinda Santos
17/06/2022
Catarina Ventura
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Catarina Ventura
18/08/2023

Excelentes profissionais!

William Caldeira
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William Caldeira
13/12/2020
Rakesh Gupta
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Rakesh Gupta
30/11/2021

Robert cleared my ear wax. Perfect

LÚCIA BRAGA
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LÚCIA BRAGA
26/10/2019
Christine Wollschlager Monteiro de Almeida
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Christine Wollschlager Monteiro de Almeida
15/06/2022
luis freitas
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luis freitas
27/01/2022

Uma simpatia e com muito conhecimento do assunto . Fácil estacionar e gratuito.

Sealtortie
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Sealtortie
13/04/2023

Extremely knowledgeable and friendly people gave fantastic advice & reasonably priced.

Antonio Nery
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Antonio Nery
31/01/2018
Norbert Gajetzki
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Norbert Gajetzki
21/03/2018

Sehr freundliche Bedienung und Hilfreiche Betreuung. Mir wurde mein Hörgerät trotz anderen Fabrikates repariert. Sprachliche Verständigung auch in Deutsch möglich. Kann ich nur empfehlen.

Richard Barnard
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Richard Barnard
18/07/2021

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Frequently Asked Questions

Whether you’re exploring our bespoke services, our approach, or how we can elevate your hearing experience, here are answers to the questions we’re asked most often.

No. The test involves listening to tones at safe sound levels through headphones. If a tone must be raised, it is still within clinically approved limits and lasts only a short time. Most patients describe it as no more bothersome than a standard hearing test.

Including discussion, baseline audiometry, Tone Decay testing, Acoustic Reflex measurements, and results counselling, expect about forty-five minutes to one hour. If you have a complex history or many questions, we schedule extra time so you never feel rushed.
Simply avoid loud noise exposure—such as power tools or concerts—on the day of your test, and bring any hearing aids you currently use. No fasting, medication changes or other preparations are required.
Our audiologist will explain the finding in plain language and, if appropriate, refer you to an ENT specialist for further imaging or medical assessment. Early detection means earlier intervention and typically better outcomes.
Yes. The Tone Decay Test relies on pressing a button or raising a hand when the tone fades, so it works well with children old enough to cooperate. Our staff also speak multiple languages common in the Algarve and can guide non-English speakers comfortably through the procedure.

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