Concierge audiology · London
Speech-in-noise tests, the real-world hearing test that reveals "hidden hearing loss".
Speech-in-noise tests (QuickSIN, HINT, LiSN-S) quantify how well you understand speech in background noise — the most common real-world hearing complaint, often missed by a normal pure tone audiogram. Reveals "hidden hearing loss" and guides hearing-aid choice.
Key facts
Speech-in-noise testing at a glance.
The essentials — what the test is, how long it takes, and where it fits in a hearing workup.
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Definition
Functional real-world hearing test
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Test duration
15–20 minute test
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Protocols
QuickSIN, HINT, LiSN-S protocols
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What it reveals
Reveals hidden hearing loss
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Clinical role
Foundation of hearing-aid recommendation
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Complements
Complements pure tone + speech audiometry
How the test is done
From consultation to structured plan — what happens, in order.
A structured seven-step pathway that turns a real-world complaint into a measurable score and a concrete plan.
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Audiology consultation
A consultant audiologist reviews your history, symptoms and any prior audiograms.
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Baseline pure tone audiometry
A standard pure tone audiogram establishes the threshold picture across frequencies.
- 03
Speech-in-noise protocol chosen
QuickSIN, HINT or LiSN-S — chosen for age, language and the clinical question.
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SNR loss calculated
Signal-to-noise ratio loss is measured in decibels — the functional score that matters.
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Interpretation vs age norms
Results are benchmarked against age-matched norms — not just against silent-room hearing.
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Structured report
A written report with SNR loss, pattern, and interpretation for your GP or ENT.
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Structured plan
A concrete plan — hearing aid, auditory training, onward referral — with next steps.
What it shows
The patterns SIN testing reveals.
Speech-in-noise testing turns a subjective complaint into a specific pattern — and each pattern points at a different next step.
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SNR loss (mild / moderate / severe)
The core measurement — how many extra decibels of signal you need to understand speech.
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Age-related speech-in-noise decline
Presbycusis pattern where quiet-room hearing looks preserved but noise tolerance drops.
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Auditory processing disorder pattern
Central pattern where the ear works but the brain struggles to parse noisy input.
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Cochlear synaptopathy (hidden hearing loss)
The classic "normal audiogram, poor in noise" picture — often missed for years.
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Central auditory processing disorder
Adult or paediatric CAPD — where SIN testing is diagnostic, not a screening tool.
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Post-noise trauma pattern
Musicians, industrial workers, veterans — noise exposure that hasn’t yet shifted thresholds.
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Post-blast injury pattern
Post-blast auditory injury with normal PTA but marked functional deficit.
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Red flag: severe SNR loss + normal PTA — audiology + neurology referral
A severe functional deficit with a normal audiogram warrants joint audiology and neurology input.
Treatment options
What SIN results actually change.
The test doesn’t exist for its own sake — it exists to choose between hearing aids, auditory training, remote-microphone systems and onward referral.
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Hearing-aid fitting with directional mic
Modern hearing aids with directional microphones and noise-reduction algorithms — the first-line answer for most SNR loss.
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Remote microphone systems
Roger and equivalent remote-mic systems — the single biggest gain for meetings and restaurants.
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Auditory training programmes
Structured LACE or clEAR-style auditory training to retrain top-down speech parsing.
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FM systems for classrooms
Paediatric FM systems in school — evidence-based support for CAPD and hidden hearing loss.
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Central auditory processing intervention
Multi-modal CAPD intervention — auditory, cognitive and educational support in parallel.
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Cochlear implant candidacy assessment
Severe SNR loss with limited hearing-aid benefit triggers formal implant candidacy assessment.
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Structured audiology follow-up
Re-testing at 6 and 12 months to check aid benefit and detect progression.
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Multi-disciplinary team review
ENT, audiology, neurology and, where relevant, psychology working from the same report.
Red flags
Presentations that push SIN testing up the priority list.
Nine patterns where a normal pure tone audiogram isn’t enough — and where SIN testing changes management.
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Severe SNR loss + normal PTA
The signature of hidden hearing loss — warrants audiology and neurology review together.
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Post-blast injury
Any blast exposure with persistent listening difficulty needs formal speech-in-noise testing.
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Post-COVID auditory processing deficit
New listening-in-noise difficulty after COVID is a recognised pattern and worth quantifying.
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Central auditory processing disorder in child
Suspected paediatric CAPD needs formal testing before school-based interventions are set.
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Post-concussion auditory issues
Concussion-related listening difficulty in noise, even with a normal audiogram.
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Post-chemotherapy auditory processing
Ototoxic chemotherapy can produce central and peripheral SIN deficits — track objectively.
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ADHD comorbidity
ADHD and CAPD overlap significantly — SIN testing helps separate the auditory contribution.
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Autism spectrum disorder comorbidity
Sensory processing issues in ASD often include speech-in-noise difficulty — worth measuring.
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Non-organic hearing loss
Where audiogram and function don’t match, SIN testing is part of the objective picture.
Frequently asked
Everything we get asked about speech-in-noise testing.
Quick answers on protocols, hidden hearing loss, paediatric use, and how SIN fits with pure tone audiometry.
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What is a speech-in-noise test?
A speech-in-noise test measures how well you understand speech when there is background noise — the real-world scenario most people with hearing difficulty actually struggle with. It gives a functional score (SNR loss in decibels), where a standard pure tone audiogram only gives a threshold picture in silence.
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What are QuickSIN, HINT and LiSN-S?
They are the three most widely used speech-in-noise protocols. QuickSIN is a fast six-sentence test that produces an SNR loss score. HINT (Hearing In Noise Test) measures adaptive sentence thresholds in noise. LiSN-S (Listening in Spatialised Noise – Sentences) uses spatial cues and is especially useful in paediatric central auditory processing disorder.
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What is "hidden hearing loss"?
"Hidden hearing loss", or cochlear synaptopathy, is a pattern where pure tone thresholds look normal but the person genuinely can’t follow speech in noise. It is thought to reflect damage at the cochlear synapse and is one of the clearest indications for speech-in-noise testing.
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Why isn’t a normal audiogram enough?
A pure tone audiogram tests threshold hearing in a quiet booth. It does not test the auditory brain’s ability to separate speech from background noise. Two people with identical audiograms can have very different real-world hearing — SIN testing is what tells them apart.
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How long does the test take?
The speech-in-noise portion itself is typically 15–20 minutes. In practice most people have it as part of a full audiology assessment lasting around an hour, alongside pure tone audiometry and speech audiometry.
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When should a child have SIN testing?
When there is a persistent listening-in-noise difficulty, a suspected central auditory processing disorder, or unexplained classroom or language difficulty despite normal audiogram results. LiSN-S is the paediatric protocol of choice.
Sources
The guidance and literature behind this page.
Reviewed 2026-07-30. Next scheduled review 2027-07-30. Reviewed by Pulse Atlas Editorial Board ().
- British Society of Audiology. Recommended procedures for speech audiometry and speech-in-noise testing.
- American Speech-Language-Hearing Association. Guidelines on (central) auditory processing disorders.
- European Federation of Audiology Societies. Clinical recommendations on functional hearing assessment.
- Ear and Hearing. Peer-reviewed literature on SNR loss, cochlear synaptopathy and speech-in-noise outcomes.
Related tests
Looking for a different test?
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Pure tone audiometry
The standard threshold audiogram — the baseline before SIN testing.
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Speech audiometry
Speech recognition in quiet — the classic complement to SIN testing.
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Private audiology assessment
A full consultant audiology workup — history, PTA, speech and SIN together.
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All tests
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In practice, in London
The London pathway for speech in noise tests
With speech in noise tests, the London question is usually about report turnaround and the radiologist reading it — not whether the scan is available. Public provision for speech in noise tests is competent but constrained by capacity. Private London clinics tend to have shorter diaries and longer appointment slots, so you get the same specialists with more time. For people who’ve been going round in circles with primary care, that first proper conversation is often what shifts things.
A private speech in noise tests pathway in London usually looks like this: an initial consultation, any diagnostics booked at a nearby facility (most within Zone 1 or 2), and a written report sent to you and your GP within a few days. The consultants we work with hold NHS posts alongside their private lists, which keeps the standards consistent across both settings. For speech in noise tests specifically, the difference between a routine report and a sub-speciality read is where private care earns its keep.
Honesty about expectations is part of the job. A private speech in noise tests appointment in London won’t change the underlying medicine — the guidelines, the consultants, and the equipment are largely the same as on the NHS. What it changes is speed, continuity, and the amount of time you get to actually talk through the findings. Everyone we route to is GMC-registered and works within CQC-regulated facilities.