June 11, 2025

Our evidence based fitting process: from diagnosis to rehabilitation hearing aid fitting process; verification validation

When you’re facing hearing loss, the journey from your first appointment to successfully managing your hearing can feel overwhelming. Perhaps you’ve been putting off getting help, unsure of what the process involves, or maybe you’ve had a disappointing experience elsewhere and wonder if better outcomes are possible. At The Audiology Place, we believe that transparency about our clinical process helps patients feel confident in their care—and delivers better hearing outcomes.

Research consistently shows that following a structured, evidence-based fitting protocol significantly improves hearing aid satisfaction and real-world performance. Yet not all clinics follow best-practice guidelines. Understanding what a comprehensive hearing aid fitting process should look like empowers you to advocate for the quality care you deserve.

Why Process Matters in Audiology

The difference between a hearing aid that sits in a drawer and one that genuinely improves your quality of life often comes down to the fitting process. A 2016 study in the *International Journal of Audiology* found that proper verification using Real Ear Measurement (REM) increases the likelihood that hearing aids meet prescriptive targets by over 40% compared to first-fit programming alone. Similarly, structured follow-up care and rehabilitation significantly improve long-term outcomes and patient satisfaction.

Despite this evidence, industry surveys suggest that only 30-40% of audiologists routinely perform verification measurements, and comprehensive rehabilitation programs remain inconsistent across clinics. This gap between evidence and practice is precisely why we’ve built our clinical workflow around six core steps that reflect international best-practice guidelines.

The Six-Step TAP Workflow: What to Expect

Our evidence-based approach ensures nothing is missed and that your hearing aids are genuinely optimised for your individual hearing loss, lifestyle, and communication needs. Here’s what happens at each stage.

Step 1: Comprehensive Case History

Your journey begins before any testing equipment is switched on. We spend time understanding your hearing challenges in context: Which situations cause you the most difficulty? What are your communication priorities? Do you have concerns about background noise in restaurants, missing conversations with grandchildren, or struggling in meetings?

We also review your medical history, current medications, and any relevant health conditions. This is crucial because specific symptoms—such as sudden hearing loss, unilateral hearing loss, dizziness, or ear discharge—may indicate conditions that require a medical referral before hearing aids are appropriate. Our responsibility extends beyond fitting devices; it includes recognising when medical intervention takes priority.

During this consultation, we also discuss your technology comfort level, lifestyle factors, and expectations. This information shapes every subsequent decision, from the hearing aid style we might recommend to the rehabilitation approach we’ll use.

Step 2: Diagnostic Testing

Comprehensive diagnostics form the foundation of appropriate treatment. Our test battery goes beyond the basic hearing test you might remember from school.

**Standard diagnostic assessments include:**

– **Pure-tone audiometry**: Establishing your hearing thresholds across frequencies
– **Speech audiometry**: Measuring your ability to hear and understand speech at different volumes
– **Tympanometry**: Assessing middle ear function to rule out conductive issues
– **Otoacoustic emissions (where indicated)**: Evaluating inner ear function
– **Speech-in-noise testing**: Determining how well you understand speech against background noise—the most common real-world challenge

This diagnostic phase typically takes 60-90 minutes. The results tell us not just *if* you have hearing loss, but *what type*, *how severe*, and critically, *how it’s affecting your speech understanding*. These factors determine whether hearing aids are appropriate, which technology level might benefit you most, and what realistic outcomes to expect.

Step 3: Hearing Aid Selection and Initial Fitting

If hearing aids are recommended, we discuss options based on your specific hearing loss, lifestyle needs, and budget. We maintain a brand-agnostic approach, meaning our recommendations aren’t driven by manufacturer incentives but by what the evidence suggests will work best for you.

The initial fitting involves programming your hearing aids according to prescriptive formulas—validated methods like NAL-NL2 or DSL that calculate appropriate amplification based on your audiogram. However, this “first fit” is only the starting point, never the endpoint.

Step 4: Real Ear Measurement (Verification)

Here’s where evidence-based practice becomes tangible. Real Ear Measurement (REM) is the gold standard for verifying that your hearing aids are delivering the prescribed amplification *in your individual ear canal*.

Why is this critical? Because every person’s ear anatomy is different, these differences affect how sound is delivered. Factory settings or programming based solely on your audiogram cannot account for your unique ear shape, the depth of hearing aid insertion, or the acoustic characteristics of your ear canal. REM uses a tiny probe microphone to measure the actual sound levels reaching your eardrum, allowing us to fine-tune the programming until it matches evidence-based targets.

This step typically adds 20-30 minutes to your appointment but dramatically improves outcomes. Research published in *Trends in Hearing* (2018) demonstrated that REM-verified fittings resulted in significantly better speech understanding, sound quality ratings, and overall satisfaction compared to non-verified fittings.

Step 5: Speech-in-Noise Assessment

Verification ensures your hearing aids are programmed correctly, but validation confirms they’re actually improving your hearing in meaningful ways. We conduct aided speech-in-noise testing—assessing your ability to understand speech against background noise while wearing your hearing aids.

This objective measure provides a baseline for comparison at future appointments and helps set realistic expectations. If results show minimal improvement in challenging listening situations, it prompts meaningful conversations about realistic limitations, additional strategies (like assistive listening devices), or whether different technology might be beneficial.

Step 6: Rehabilitation and Follow-Up Care

The fitting appointment is not the finish line—it’s the starting point of your rehabilitation journey. Your brain needs time to adjust to amplified sound, particularly if you’ve had untreated hearing loss for years. This neurological adaptation process, called auditory acclimatisation, typically takes 3-6 months.

Prospective patients often ask: “How long does this process take?” The honest answer is that quality hearing care requires investment of your time.

The initial diagnostic and fitting process spans approximately 2-3 appointments over 4-6 weeks. The complete rehabilitation journey, including acclimatisation and outcome validation, extends 3-6 months. While this may seem extensive, research consistently shows that structured follow-up and rehabilitation dramatically improve long-term success and satisfaction.

The Limits of Remote and Abbreviated Care

The rise of over-the-counter hearing devices and teleaudiology has expanded access to amplification, which can be valuable for some individuals. However, it’s essential to understand the limitations. Remote fittings cannot include Real Ear Measurement, comprehensive diagnostic testing may be limited, and the hands-on support for troubleshooting and rehabilitation is reduced.

For individuals with complex hearing loss, significant speech understanding difficulties, or medical concerns, comprehensive in-person care following best-practice protocols remains the evidence-based standard. There is no substitute for thorough diagnostics and verified, validated fittings when optimal outcomes matter.

Transparency and Independence Matter

We believe patients deserve to understand not just *what* we do, but *why*—and how our approach compares to alternatives. Our evidence-based protocol follows guidelines from the American Academy of Audiology and Audiology Australia. We maintain independence from hearing aid manufacturers, allowing recommendations based solely on clinical evidence and your individual needs.

When research shows that a particular approach improves outcomes, we implement it. When evidence suggests limitations—whether of specific devices, fitting approaches, or what hearing aids can realistically achieve—we communicate that honestly.

If you’re experiencing hearing difficulties, the path to better hearing begins with understanding what quality care looks like. You now know that evidence-based hearing care extends well beyond simply purchasing devices—it involves comprehensive diagnostics, verified fitting using Real Ear Measurement, validated outcomes, and structured rehabilitation.

We encourage you to book a comprehensive hearing assessment if you’re noticing communication difficulties, if family members have expressed concerns, or if it’s been more than two years since your last hearing evaluation.

**Important disclaimer**: This article provides general information about hearing care processes and should not be considered personal medical advice. If you experience sudden hearing loss, ear pain, discharge, dizziness, or unilateral hearing changes, seek prompt medical evaluation. These symptoms may indicate conditions requiring urgent medical attention.

author avatar
Dr Signe Steers Audiologist
Welcome to my clinic. With nearly 20 years of experience, I have dedicated my career to enhancing the hearing health of individuals across all stages of life, from infants to the elderly. My passion for Speech and Hearing Science was sparked early on, driven by the understanding that improved hearing significantly enhances education, behaviour, and overall well-being. My career has taken me from presenting research at the World Health Organization to working in rural communities in the Philippines, where I helped developed systems that improved health and educational outcomes for disadvantaged populations. Last year I completed a Doctorate in Audiology at A.T. Still University in Arizona. Dr Signe Steers (Peitersen) holds a Bachelor of Speech and Hearing science from Macquarie University, Sydney, A Masters in Clinical Audiology from Macquarie University Sydney, and a Doctor of Audiology from A.T. Still University Arizona. Signe is a full member of Audiology Australia and Independent Audiologists Australia.