Hearing health guide
Can You Have Tinnitus With Normal Hearing? What Research Shows
Imagine hearing a persistent ringing, buzzing, or hissing sound, yet having a hearing test that shows no measurable hearing loss.
Imagine hearing a persistent ringing, buzzing, or hissing sound, yet having a hearing test that shows no measurable hearing loss.
It might seem contradictory. If hearing is normal, why would tinnitus be present?
The answer is that tinnitus and hearing loss are related, but they are not the same thing.
According to the National Institute on Deafness and Other Communication Disorders (NIDCD), most people who experience tinnitus have some degree of hearing loss. However, scientific research also documents tinnitus among people whose conventional hearing tests fall within normal limits.
In a U.S. population study published in Hearing Research in 2018, 10.6% of participants classified as having normal hearing thresholds reported persistent tinnitus.
More recent studies have explored whether conventional hearing tests may miss subtle differences in how the auditory system functions.
A study published on October 12, 2026, found differences in several auditory measurements among participants with tinnitus and normal conventional audiograms. However, some of those differences were no longer statistically significant after accounting for hearing sensitivity at extended high frequencies.
These findings illustrate why the relationship between tinnitus and hearing remains an active area of research.
This article examines what scientists have established, how hearing tests are interpreted, and what remains uncertain about tinnitus in people with normal audiograms.
Research reviewed October 23, 2026.
Can You Have Tinnitus Without Hearing Loss?
Yes. Tinnitus can occur in people whose conventional hearing thresholds are within normal limits.
The NIDCD defines tinnitus as the perception of sound without a corresponding external sound source.
The perceived sound may resemble ringing, buzzing, hissing, roaring, humming, or whistling.
Tinnitus is strongly associated with hearing loss, but the relationship is not absolute.
Some people have hearing loss without experiencing tinnitus. Others experience tinnitus despite conventional hearing-test results that are considered normal.
This distinction has been documented in population-based research and controlled laboratory studies.
However, the phrase normal hearing requires careful interpretation.
Different studies use different hearing-test frequencies, threshold cutoffs, and measurement techniques.
A normal result using one definition does not necessarily mean every measurable characteristic of auditory function falls within typical limits.
Sources:
What Does a Normal Hearing Test Actually Measure?
A conventional hearing test commonly includes pure-tone audiometry.
This measures the softest sound level at which a person can detect tones at selected frequencies.
According to the American Speech-Language-Hearing Association (ASHA), conventional audiometry commonly assesses frequencies between approximately 250 and 8,000 hertz (Hz).
Results are displayed on a graph called an audiogram.
An audiogram provides useful information about hearing sensitivity, but it does not directly measure every aspect of auditory processing.
For example, conventional pure-tone testing does not fully describe:
- Hearing sensitivity above 8,000 Hz
- Speech recognition in complex noisy environments
- All aspects of cochlear sensory-cell function
- Auditory nerve responses to sound
- Every process involved in auditory perception
These functions involve different measurements and, in some cases, areas of continuing scientific investigation.
A normal audiogram therefore has a specific meaning: hearing thresholds met the criteria used for the tested frequencies.
It does not mean that the auditory system has been comprehensively measured in every possible way.
Source: ASHA — Hearing Loss in Adults
How Common Is Tinnitus Among People With Normal Hearing Tests?
A population-based study provides useful evidence.
In 2018, researchers published an analysis titled Self Reported Hearing Difficulty, Tinnitus, and Normal Audiometric Thresholds in the journal Hearing Research.
The researchers examined data from the U.S. National Health and Nutrition Examination Survey (NHANES), collected between 1999 and 2002.
The analysis included 2,176 adults ages 20–69 with complete relevant data.
For the primary analysis, normal hearing was defined using an average threshold of 25 dB HL or better across 500, 1,000, 2,000, and 4,000 Hz in each ear.
Of the participants:
- 2,015 met that particular normal-hearing definition.
- 15% of those classified as having normal hearing reported hearing difficulties.
- 10.6% reported persistent tinnitus.
What does the 10.6% figure mean?
It describes the proportion of participants meeting the study's definition of normal hearing who reported persistent tinnitus.
It does not mean that 10.6% of everyone with tinnitus has normal hearing.
Nor is it a new prevalence estimate for 2026.
The study used historical survey data and specific measurement criteria.
Did the definition of normal hearing affect the findings?
Yes.
When researchers used a stricter definition that also considered individual thresholds at 6,000 and 8,000 Hz, the estimated prevalence of tinnitus among people with normal hearing decreased.
This is one of the study's most important findings.
How researchers define normal hearing can materially change the results of tinnitus studies.
Source: Spankovich, Gonzalez, Su & Bishop (2018) — Hearing Research
Why Might Someone Have Tinnitus With a Normal Audiogram?
Scientists are investigating several possible explanations.
None has been established as the universal cause of tinnitus in people with normal conventional hearing tests.
1. Hearing differences above the frequencies routinely tested
Conventional audiograms generally assess hearing sensitivity up to 8,000 Hz.
But auditory sensitivity extends beyond this range.
Researchers sometimes use extended high-frequency audiometry to assess frequencies between approximately 9,000 and 20,000 Hz.
Some studies have found that people with tinnitus and normal conventional hearing thresholds have poorer hearing sensitivity in these higher frequency ranges than people without tinnitus.
This raises the possibility that some auditory differences are simply not captured by conventional frequency-limited testing.
However, higher-frequency hearing differences do not necessarily explain every tinnitus experience.
2. Differences in auditory nerve signaling
Researchers have proposed that changes in the connections between cochlear sensory cells and auditory nerve fibers could play a role in tinnitus.
One mechanism under investigation is called cochlear synaptopathy.
Studies in animal models have demonstrated that some noise-related synaptic damage can occur without permanently elevated conventional hearing thresholds.
Whether comparable changes explain tinnitus in humans remains uncertain.
Human studies have produced differing findings.
3. Differences in auditory processing
Tinnitus involves the perception of sound, and auditory perception depends on neural processing as well as the detection of sound.
Researchers have studied relationships among tinnitus, auditory brainstem responses, speech recognition, and other processing measures.
Some studies identify group-level differences between people with and without tinnitus.
However, these findings do not establish that every person with tinnitus has a specific auditory processing disorder.
4. Other factors associated with tinnitus
The NIDCD identifies several recognized associations with tinnitus, including certain medications, ear conditions, head or neck injuries, and jaw-related problems.
These associations are not dependent on every individual having abnormal pure-tone hearing thresholds.
The presence of tinnitus alone cannot identify a particular underlying mechanism.
Sources: NIDCD — Tinnitus and ASHA — Tinnitus and Hyperacusis.
What Does Research Say About Extended High-Frequency Hearing?
Extended high-frequency hearing is one of the most extensively investigated explanations for tinnitus occurring alongside normal conventional audiograms.
In 2022, researchers published a systematic review and meta-analysis in Ear and Hearing.
The review examined studies comparing extended high-frequency hearing thresholds between people with tinnitus and people without tinnitus who had normal conventional audiograms.
From 261 potentially relevant articles, nine studies met the inclusion criteria.
The researchers found statistically significant differences in hearing thresholds at:
- 10,000 Hz
- 12,500 Hz
- 14,000 Hz
- 16,000 Hz
- 18,000 Hz
Across the studies, participants with tinnitus generally showed poorer extended high-frequency hearing sensitivity.
What does this finding establish?
It demonstrates an association between tinnitus and reduced hearing sensitivity at certain frequencies above the conventional testing range.
It does not demonstrate that extended high-frequency hearing loss causes tinnitus.
It also does not mean every person with tinnitus has abnormal extended high-frequency thresholds.
The review's conclusions apply to the study populations and measurement methods included in the analysis.
What Did the October 2026 Tinnitus Study Find?
A study published online on October 12, 2026, in the Journal of Speech, Language, and Hearing Research provides a particularly useful update.
The researchers examined auditory function among:
- 20 individuals with tinnitus and clinically normal conventional audiograms
- 25 age-matched participants without tinnitus
All participants were evaluated using multiple auditory measures.
These included:
- Conventional and extended high-frequency hearing testing
- Auditory brainstem responses
- Otoacoustic emissions
- Middle-ear muscle reflex measurements
- Measures of temporal sound processing
What were the initial findings?
The researchers identified several differences between the tinnitus and control groups.
Participants with tinnitus showed:
- Higher extended high-frequency hearing thresholds
- Reduced auditory brainstem response Wave I amplitude
- Differences in certain cochlear and reflex measurements
- Poorer performance on some temporal-processing measures
What happened when researchers accounted for extended high-frequency hearing?
This was the study's most important finding.
After statistical adjustment for extended high-frequency hearing thresholds, the initially identified group differences were no longer statistically significant.
This suggests that some differences originally attributed to tinnitus may be related to hearing sensitivity at frequencies not measured by conventional audiograms.
What are the limitations?
The study included only 45 participants.
Its analyses were exploratory, and the results cannot establish a universal explanation for tinnitus.
A statistically nonsignificant finding also does not prove that no biological difference exists.
The findings instead demonstrate how accounting for additional hearing measurements can change the interpretation of tinnitus research.
Does Tinnitus With Normal Hearing Mean Hidden Hearing Loss?
Not necessarily.
The term hidden hearing loss is used in scientific literature to describe certain hearing-related difficulties that may not be apparent on a conventional audiogram.
It is sometimes discussed in connection with cochlear synaptopathy, a proposed mechanism involving the connections between cochlear inner hair cells and auditory nerve fibers.
However, these concepts are not interchangeable.
A person reporting tinnitus with normal hearing thresholds does not automatically have proven cochlear synaptopathy.
A 2017 study found no evidence of synaptopathy using its measurements
Researchers from the University of Manchester published a study in Hearing Research involving young adults with tinnitus and matched controls.
The groups were closely matched for age, sex, and hearing sensitivity, including measurements extending to 14,000 Hz.
The tinnitus group reported greater lifetime noise exposure.
However, the researchers found no evidence of cochlear synaptopathy using the auditory brainstem response and envelope following response measurements included in the study.
The authors emphasized that their results did not rule out synaptopathy in every human population.
They concluded only that the expected evidence was absent in the group they studied.
A 2023 study reported findings suggesting a possible role
Research published in the Journal of Speech, Language, and Hearing Research in November 2023 examined physiological measurements among U.S. veterans and non-veterans.
The researchers studied participants with normal audiograms, grouped by military service and tinnitus history.
Certain auditory measurements, particularly envelope following responses, differed among the groups.
The authors concluded that cochlear synaptopathy may contribute to tinnitus among noise-exposed veterans.
However, the physiological measures were indirect indicators of synaptic function.
They were not direct observations of lost synapses in living participants.
What is the scientific conclusion?
Different studies have produced different findings.
The evidence does not justify stating that every person with tinnitus and a normal hearing test has hidden hearing loss.
Nor does it establish that cochlear synaptopathy is absent from all such cases.
The role of cochlear synaptopathy in human tinnitus remains an active research question.
Can Tinnitus Occur Without Any Measurable Hearing Abnormality?
Conventional audiological measurements do not always identify differences between people with and without tinnitus.
Research demonstrates that tinnitus can be reported in individuals whose measured hearing thresholds fall within normal limits.
However, proving that a person's auditory system has absolutely no measurable abnormalities is a much broader claim.
No single hearing test evaluates every structure and process involved in hearing.
Furthermore, the precision and sensitivity of auditory measurements continue to develop.
The most scientifically accurate distinction is between:
Normal results on the tests performed, and
Evidence that every aspect of auditory function is normal.
The first can be established under defined testing conditions.
The second cannot be concluded from a conventional audiogram alone.
Sources: ASHA — Hearing Loss in Adults and Sevmez et al. (2026).
Can People With Tinnitus and Normal Hearing Have Difficulty Understanding Speech?
Yes. Scientific studies have investigated speech-understanding difficulties among people with tinnitus, including participants whose conventional hearing thresholds fall within normal limits.
Understanding speech in background noise involves several processes.
These include hearing sensitivity, auditory processing, attention, and the acoustic characteristics of the listening environment.
In 2024, researchers published a systematic review and meta-analysis in the European Archives of Oto-Rhino-Laryngology.
The review examined 32 studies investigating tinnitus and speech perception in noise.
The pooled findings identified poorer speech-in-noise performance associated with tinnitus.
However, the studies included different participant populations, hearing characteristics, and research designs.
These limitations make it difficult to isolate the role of tinnitus itself from other auditory and cognitive factors.
What has newer research suggested?
A study published in Ear and Hearing in 2026 examined speech-in-noise difficulties using observational measures and genetic epidemiological methods.
The researchers studied 216 young adults, including 87 with chronic tinnitus, with conventional hearing thresholds of 20 dB HL or better between 250 and 8,000 Hz.
The authors concluded that tinnitus and speech-in-noise difficulties may share genetic influences rather than a simple direct causal relationship.
This is a research interpretation based on the methods used, not definitive proof that tinnitus never influences speech understanding.
Together, the studies suggest that tinnitus and speech-understanding difficulties can coexist, but the mechanisms remain incompletely understood.
Sources:
- Madhukesh et al. (2024) — The Impact of Tinnitus on Speech Perception in Noise
- Bhagavan et al. (2026) — Can Tinnitus Cause Speech-in-Noise Deficits?
What Is the Difference Between Conventional and Extended High-Frequency Audiometry?
These tests examine different frequency ranges.
| Measurement | What it evaluates | Important limitation |
|---|---|---|
| Conventional pure-tone audiometry | Hearing sensitivity at selected frequencies, commonly 250–8,000 Hz | Does not cover frequencies above the conventional range |
| Extended high-frequency audiometry | Hearing sensitivity at approximately 9,000–20,000 Hz | Results can be influenced by technical and individual factors |
| Speech recognition in quiet | Ability to identify spoken words under controlled conditions | May not reflect complex noisy environments |
| Speech-in-noise testing | Recognition of speech with competing sound | Performance reflects several auditory and non-auditory factors |
| Auditory brainstem response | Electrical responses arising along auditory pathways | Indirect measurement; cannot by itself prove synaptic loss |
| Otoacoustic emissions | Certain aspects of cochlear outer hair-cell function | Does not measure every component of cochlear or neural function |
These measurements serve different research and audiological purposes.
The presence of tinnitus does not automatically mean that every test will show an abnormal result.
Sources: ASHA — Hearing Loss in Adults and ASHA — Tinnitus and Hyperacusis.
Does Tinnitus Always Indicate Damage to the Inner Ear?
No single scientific finding establishes that tinnitus always indicates a particular form of inner-ear damage.
The NIDCD explains that tinnitus has several recognized associations, including hearing loss, noise exposure, medications, ear conditions, and other factors.
Researchers have proposed multiple biological explanations for tinnitus perception.
These include altered auditory input, changes in neural activity, and interactions among brain systems involved in hearing, attention, and emotion.
However, demonstrating an association between tinnitus and an auditory measurement is different from establishing that a specific mechanism caused tinnitus.
The 2017, 2023, and 2026 studies discussed above illustrate this challenge.
Some identify differences in proposed physiological markers; others do not.
The evidence therefore does not support interpreting every experience of tinnitus as proof of permanent cochlear damage.
Source: NIDCD — Tinnitus
What Does the 2026 Tinnitus Clinical Guideline Establish?
The American Academy of Otolaryngology–Head and Neck Surgery Foundation published an updated tinnitus clinical practice guideline in October 2026.
The guideline focuses primarily on adults with persistent, bothersome tinnitus.
It distinguishes tinnitus perception from its effects on quality of life.
It also discusses audiological evaluation and the importance of characterizing hearing function in people who experience tinnitus.
The guideline does not establish that every person with tinnitus has measurable hearing loss.
Nor does it identify cochlear synaptopathy as a universally proven explanation for tinnitus with a normal conventional audiogram.
Its framework reflects the complexity of tinnitus and the continued importance of evidence-based interpretation.
Source: AAO-HNSF — Clinical Practice Guideline: Tinnitus Update (2026)
What Scientists Still Don't Know
Despite progress, several questions remain unanswered.
Why do some people experience tinnitus with normal conventional hearing thresholds?
Researchers have documented this phenomenon but have not established one universal biological explanation.
Does extended high-frequency hearing loss cause tinnitus?
Studies have found associations, but a causal relationship has not been conclusively demonstrated.
Does cochlear synaptopathy explain tinnitus with normal hearing?
It may contribute in certain populations, but studies have produced mixed results, and direct confirmation in living humans remains challenging.
Can auditory processing differences exist without an abnormal conventional audiogram?
Yes. Studies have identified group-level differences in selected auditory-processing measurements among participants with otherwise normal conventional hearing thresholds.
Does tinnitus directly cause difficulty understanding speech in noise?
An association has been documented. Newer research suggests that shared underlying factors may contribute, and a simple causal explanation is not established.
Can scientific testing identify the exact cause of tinnitus in every person?
No. The mechanisms of tinnitus remain incompletely understood, and no single test establishes its cause in every case.
Frequently Asked Questions
Can you have tinnitus with perfect hearing?
Tinnitus can occur in people with normal conventional hearing-test results. However, the term perfect hearing is not a precise audiological classification and does not mean every auditory function has been measured.
Why do I have ringing in my ears if my hearing test is normal?
Research documents tinnitus among people with normal conventional audiograms. Possible explanations under investigation include extended high-frequency hearing differences and other auditory processes, but the experience alone cannot establish a cause.
Is tinnitus always associated with hearing loss?
Tinnitus is strongly associated with hearing loss, but not everyone who experiences tinnitus has recognized or measurable hearing loss on conventional testing.
Does a normal audiogram rule out tinnitus?
No. An audiogram measures hearing sensitivity at specified frequencies. Tinnitus is a perceived sound and is not excluded by normal pure-tone thresholds.
Can tinnitus be a sign of hidden hearing loss?
Some studies have investigated this possibility, particularly in relation to cochlear synaptopathy. However, tinnitus does not establish a diagnosis of hidden hearing loss, and the underlying mechanisms remain uncertain.
What is extended high-frequency hearing loss?
It refers to reduced hearing sensitivity at frequencies above the range commonly measured in conventional audiometry, generally above 8,000 Hz.
Can people with tinnitus have hearing loss above 8,000 Hz?
Yes. A 2022 meta-analysis identified elevated extended high-frequency hearing thresholds in some groups of adults with tinnitus and normal conventional audiograms.
Does everyone with tinnitus have damaged auditory nerve connections?
No. Human research on cochlear synaptopathy and tinnitus has produced mixed results. It has not established that every person with tinnitus has this form of damage.
Can tinnitus affect speech understanding even with normal hearing thresholds?
Research has documented speech-in-noise difficulties among some people with tinnitus, including participants with normal conventional audiograms. However, the causal relationship remains uncertain.
Is tinnitus without hearing loss unusual?
It is a recognized phenomenon in scientific literature. One U.S. population analysis found that 10.6% of participants meeting its primary normal-hearing definition reported persistent tinnitus.
Does tinnitus with normal hearing mean it is psychological?
No. Normal conventional hearing thresholds do not establish a psychological cause. Tinnitus involves auditory perception, and its biological mechanisms are complex and incompletely understood.
Can a normal hearing test miss certain auditory differences?
Yes. Conventional hearing tests measure selected functions and frequency ranges. Research has documented differences in extended high-frequency thresholds and other auditory measurements among some participants with tinnitus.
Has research identified one cause of tinnitus with normal hearing?
No. The evidence supports several hypotheses and associations, but no single explanation has been established for every case.
Final Thoughts: Normal Hearing Tests and Tinnitus Can Coexist
Tinnitus and hearing loss are closely related, but they are not identical.
Research clearly demonstrates that tinnitus can occur in people whose conventional audiograms fall within normal limits.
The 2018 NHANES analysis documented persistent tinnitus among adults classified as having normal hearing thresholds.
A 2022 systematic review identified differences in extended high-frequency hearing sensitivity.
And an October 2026 study demonstrated how accounting for these higher frequencies can change the interpretation of other auditory measurements.
At the same time, studies investigating cochlear synaptopathy have produced mixed results.
The most accurate conclusion is that a normal conventional audiogram does not rule out tinnitus, but tinnitus alone does not prove hidden hearing loss, nerve damage, or any other specific mechanism.
Scientists continue to investigate how peripheral hearing, auditory nerve signaling, and brain processing contribute to the tinnitus experience.
Understanding the difference between established findings and developing hypotheses is essential for interpreting this research accurately.
Explore More Hearing Health Research
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Our nationwide directory also helps visitors discover audiologists, hearing aid specialists, and hearing care clinics throughout the United States.
Related reading:
10 Early Signs of Hearing Loss in Adults (and What to Do Next)
References and Research Sources
1. National Institute on Deafness and Other Communication Disorders (NIDCD). Tinnitus. U.S. National Institutes of Health. Definitions, recognized associations, and research into auditory mechanisms.
2. Spankovich, C., Gonzalez, V. B., Su, D., & Bishop, C. E. (2018). Self Reported Hearing Difficulty, Tinnitus, and Normal Audiometric Thresholds, the National Health and Nutrition Examination Survey 1999–2002. Hearing Research, 358, 30–36. Population-based analysis of 2,176 adults.
3. Jafari, Z., Baguley, D., Kolb, B. E., & Mohajerani, M. H. (2022). A Systematic Review and Meta-Analysis of Extended High-Frequency Hearing Thresholds in Tinnitus With a Normal Audiogram. Ear and Hearing, 43(6), 1643–1652. DOI: 10.1097/AUD.0000000000001229.
4. Sevmez, H. S., Sendesen, E., & Türkyilmaz, M. D. (2026). Multidomain Auditory Differences in Tinnitus With a Clinically Normal Audiogram: Accounting for Extended High-Frequency Hearing. Journal of Speech, Language, and Hearing Research. Published online October 12, 2026. DOI: 10.1044/2026_JSLHR-26-00071.
5. Guest, H., Munro, K. J., Prendergast, G., Howe, S., & Plack, C. J. (2017). Tinnitus With a Normal Audiogram: Relation to Noise Exposure but No Evidence for Cochlear Synaptopathy. Hearing Research, 344, 265–274. DOI: 10.1016/j.heares.2016.12.002.
6. Bramhall, N. F., Theodoroff, S. M., McMillan, G., Kampel, S. D., & Buran, B. N. (2023). Associations Between Physiological Correlates of Cochlear Synaptopathy and Tinnitus in a Veteran Population. Journal of Speech, Language, and Hearing Research, 66(11), 4635–4652.
7. Madhukesh, S., Palaniswamy, H. P., Ganapathy, K., Rajashekhar, B., & Nisha, K. V. (2024). The Impact of Tinnitus on Speech Perception in Noise: A Systematic Review and Meta-Analysis. European Archives of Oto-Rhino-Laryngology, 281, 6211–6228. DOI: 10.1007/s00405-024-08844-1.
8. Bhagavan, S. G., et al. (2026). Can Tinnitus Cause Speech-in-Noise Deficits?. Ear and Hearing, 47(5), 1406–1421. DOI: 10.1097/AUD.0000000000001836.
9. American Speech-Language-Hearing Association (ASHA). Hearing Loss in Adults. Conventional audiometry, extended high-frequency testing, and audiological measurements.
10. ASHA. Tinnitus and Hyperacusis. Scientific and clinical terminology concerning tinnitus, hearing, and auditory assessment.
11. American Academy of Otolaryngology–Head and Neck Surgery Foundation (2026). Clinical Practice Guideline: Tinnitus Update. Otolaryngology–Head and Neck Surgery, 175(Suppl. 1), S1–S62. DOI: 10.1002/ohn.70417.
Editorial disclosure
This article is based on publicly available material from the NIH, ASHA, and peer-reviewed scientific publications.
Audiology Digital did not conduct the studies discussed or independently collect audiological measurements.
Research findings are attributed to their original investigators. Observational associations are not presented as proof of causation, and proposed mechanisms such as cochlear synaptopathy are distinguished from established findings.
Medical information disclaimer
This article is intended solely for general education and the explanation of published tinnitus research. It does not provide medical advice, interpret individual hearing-test results, establish a diagnosis, recommend testing or treatment, or determine the cause of any individual's tinnitus.