Tinnitus and white noise: masking vs habituation

Published 2026-05-18 · 9 min read

Informational reference, not medical advice. Tinnitus management benefits from individual audiology assessment. The American Tinnitus Association, British Tinnitus Association, and AAO-HNS clinical practice guideline are the primary clinical references.

The use of sound to manage tinnitus has two distinct clinical models that are often confused in consumer coverage. The older model is masking: external sound played loud enough to cover the tinnitus so it is less perceived in the moment. The newer model, more strongly supported by recent clinical guidance, is habituation: external sound used at sub-masking levels alongside cognitive and educational components, with the goal of teaching the brain to filter the tinnitus out of conscious awareness over months. The two share equipment (sound machines, hearing aids with masking features, app-based sound therapy) but have different aims and different recommended dB levels. This page lays out both models, the evidence for each, and how to choose what fits your situation.

The masking model

Masking is the older and more intuitive approach. The principle: tinnitus is the perception of an internal sound signal; external sound that overlaps the tinnitus spectrum reduces the salience of the internal signal in the auditory cortex. At sufficient volume, the external sound can fully cover the tinnitus (full masking); at lower volume, it makes the tinnitus harder to attend to without eliminating it (partial masking).

Full masking was the standard approach from the 1970s through the 1990s. Dr Jack Vernon at the Oregon Health and Science University Tinnitus Clinic popularised tinnitus maskers, including hearing-aid-mounted masking devices that produced broadband noise at the user's preference. Full masking provides immediate relief and is still useful for severe acute tinnitus, particularly at sleep onset.

The limitation of full masking is that it traps the user in a loop of acoustic dependence: tinnitus is only manageable when the masker is on, and the brain does not learn to filter the underlying signal. This is why current clinical guidance has shifted toward the habituation model.

The habituation model and TRT

Tinnitus Retraining Therapy (TRT), developed by Pawel Jastreboff in the late 1980s and elaborated through the 1990s, is the most-cited habituation framework. TRT combines two components: directive counselling (educational, helping the patient reframe tinnitus as a neutral signal rather than a threat) and sound therapy (low-level broadband sound used continuously to support neural plasticity).

The key acoustic principle in TRT is sub-masking volume: the sound is set just below the level that would cover the tinnitus, so the tinnitus is still partially perceived but the contrast is reduced. The brain's habituation circuitry requires the signal to be present (you cannot habituate to something you do not perceive); the broadband sound reduces salience without eliminating the signal. Over months, the brain progressively filters the tinnitus signal out of conscious awareness, and the perceived loudness diminishes.

TRT requires 12 to 18 months of consistent application and is typically delivered by audiologists trained in the Jastreboff protocol. The sound therapy component can use ear-level maskers, hearing aids with masking features, or environmental sound machines. The colour matters less than the consistency of use; pink and white noise are the most common choices, with brown and notched white as alternatives for specific tinnitus profiles.

The Cochrane review and its honest limits

The most rigorous evidence synthesis on tinnitus sound therapy is the Cochrane review by Hobson, Chisholm, and El Refaie, first published 2010, updated 2012 and again 2022. The review assessed randomised controlled trials of sound therapy (masking devices, hearing aids with masking features, environmental sound machines) versus no intervention or waiting list controls.

The summary finding: there is insufficient high-quality evidence to definitively recommend sound therapy over no intervention. The available studies are small, heterogeneous in design, and frequently lack blinded outcome assessment. This is a statement about the strength of the evidence, not the absence of effect. The review explicitly notes that sound therapy is widely used in clinical practice and that absence of strong randomised evidence is not the same as evidence of absence.

The 2014 AAO-HNS (American Academy of Otolaryngology - Head and Neck Surgery) Clinical Practice Guideline on Tinnitus (updated 2022) treats sound therapy as an option that clinicians may offer, with the caveat that the evidence base is weaker than for cognitive behavioural therapy (CBT, which has stronger evidence specifically for reducing tinnitus distress).

What settings actually help

For self-managed sound therapy at home, the practical guidance distilled from ATA and BTA materials looks like this.

  • Spectrum: Pink or white noise as defaults. Brown for users who find brighter spectra unpleasant. Violet or notched white only on audiologist recommendation for narrow high-frequency tinnitus. See pink noise and violet noise.
  • Volume: Below masking level, at the “mixing point” where the external sound and the tinnitus are both perceived. Typically 35 to 50 dB at the listener's head. Going louder for full masking is acceptable for sleep onset relief but should not be the default daytime setting.
  • Duration: Consistent use, 6 to 8+ hours per day if tolerated, for habituation effect. The TRT protocol typically targets all waking hours during the initial 6 to 12 months.
  • Delivery: Environmental sound (machine, app, smart speaker) at home; ear-level sound therapy device or hearing aid masking feature outside the home. The continuity of exposure is more important than the precise hardware.
  • Pairing with counselling: Sound therapy works best paired with educational or cognitive behavioural components. The ATA, BTA, and AAO-HNS all recommend CBT-based programmes alongside sound therapy for moderate to severe tinnitus distress.

For sleep specifically, the existing tinnitus and white noise page covers the bedtime-specific setup. Sleep onset is often the moment tinnitus is most distressing because the silence makes the internal signal more salient. A sound machine at the mixing point or slightly above is reasonable for bedtime, with the volume eased back during the day to support habituation.

What may hinder progress

Three patterns that can prolong tinnitus distress despite sound therapy use.

One, consistent full masking. Always running the sound loud enough to cover the tinnitus blocks the brain's habituation circuitry from engaging with the underlying signal. Partial masking at the mixing point is the recommended default for sustained use.

Two, intermittent use. Sound therapy works through sustained neural exposure over months. Turning the machine on only when the tinnitus is loud, and off when it is quiet, does not support habituation; it reinforces the threat framing of the tinnitus signal.

Three, sound-therapy-only without counselling component. The cognitive reframing of tinnitus (it is a neutral auditory phantom, not a threat or a sign of damage) is the active ingredient in many TRT outcomes. Sound therapy supports this; it does not replace it.

When to see an audiologist

Self-managed sound therapy is reasonable for mild tinnitus that is not significantly impacting sleep, mood, or daily function. For moderate to severe tinnitus, formal audiology assessment is recommended. The AAO-HNS guideline names audiology referral as appropriate for tinnitus that is persistent (greater than 6 months), bothersome, or asymmetric (unilateral tinnitus deserves prompt evaluation to rule out specific causes).

An audiologist can characterise the tinnitus (pitch, loudness, mixing point, presence of hyperacusis), assess underlying hearing loss, recommend a specific spectrum and volume profile, and refer to a TRT-trained clinician or CBT-trained therapist if appropriate. They can also prescribe hearing aids with masking features when indicated, which addresses underlying hearing loss (a common contributor to tinnitus) in addition to providing sound therapy.

The American Tinnitus Association and British Tinnitus Association both maintain referral directories and patient education materials. Both also publish position statements on sound therapy that align with the AAO-HNS guideline framing.

Frequently asked

Is CBT really more evidence-supported than sound therapy?

Yes, by Cochrane and AAO-HNS standards. Cognitive behavioural therapy has multiple RCTs showing meaningful reduction in tinnitus distress (not the loudness, but the suffering). Sound therapy is widely used adjunctively but the controlled-trial evidence is weaker.

What is notched sound therapy?

A specific technique where a narrow band around the tinnitus pitch is removed (notched) from the masking sound. The principle is to provide neural stimulation in adjacent frequencies while not feeding the tinnitus pitch itself. Evidence is mixed; it is one of several spectrum-tailored approaches.

Can I use my baby's sound machine for tinnitus?

Yes, with the obvious caveat that the AAP 50 dB ceiling is for infants, not adults. Adults can run higher volumes if helpful, though the mixing-point principle suggests lower is often better for habituation.

Will tinnitus go away on its own?

Acute tinnitus (less than 3 months) often resolves spontaneously. Chronic tinnitus (greater than 6 months) typically does not, though the perceived distress often reduces with appropriate management. Habituation reduces awareness; it rarely eliminates the underlying signal.

Sources

Tinnitus and white noise overview →Pink noise →Violet noise →Brown noise →Sound machine buyer's guide →

Updated 2026-04-27