Sound Therapy for Tinnitus: The Complete Evidence-Based Guide

“Sound therapy” covers several very different approaches with very different evidence behind them. This guide explains each one plainly, what the research actually shows, how to choose, and how to use sound therapy properly — with links to deeper guides on every method.

What “Sound Therapy” Actually Means

Sound therapy is an umbrella term. Under it sit at least five distinct strategies, and they are not interchangeable. Some aim only to make tinnitus less noticeable; others aim to change the underlying neural activity over months. Confusing them is the most common reason people conclude “sound therapy doesn’t work” — they tried one approach, briefly, expecting the result of another.

The five strategies covered here are: masking, notched sound therapy, ACRN, bimodal stimulation, and choosing a noise colour for comfort and sleep. The first and last are about immediate relief; the middle three are neuroplastic and slow.

Masking: Immediate Relief, Not Retraining

Masking plays broadband or environmental sound at a level that partially or fully covers the tinnitus. It works instantly and is genuinely useful for getting through a hard moment or falling asleep. What it does not do is retrain the brain — turn the sound off and the tinnitus returns unchanged. Treat masking as symptom relief, not treatment, and avoid masking so loudly that you never hear the tinnitus at all, which can slow habituation.

Notched Sound Therapy: The Best-Studied Retraining Method

Notched sound therapy removes a band of frequencies around your exact tinnitus pitch from broadband noise or music. Neurons next to the silenced band become more active and, through lateral inhibition, help quiet the over-active neurons producing the phantom sound. Controlled studies (Okamoto et al., 2010) show reductions in tinnitus loudness and related cortical activity over weeks of daily use. It works best for clear, tonal, high-frequency tinnitus, and accuracy of the notch is decisive.

Read the deep dive: How Notched Sound Therapy Works.

ACRN: Targeting Neural Synchrony

ACRN (Acoustic Coordinated Reset Neuromodulation) plays four tones at fixed ratios around your tinnitus pitch in a continually re-randomised order, aiming to break up synchronised neural firing (Tass et al., 2012). The theory is elegant and some trials are positive, but the evidence is more mixed and trial-dependent than for notched therapy, and it is slow — often three months or more.

Deep dive: ACRN Explained.

Bimodal Stimulation: Sound Paired With Touch

Bimodal stimulation pairs sound with precisely timed somatosensory input to drive plasticity in the dorsal cochlear nucleus. In Shore-lab trials using calibrated electrical stimulation (Marks et al., 2018; 2023 RCT), roughly half of participants improved significantly versus about a fifth on sham. App-based versions that use a voluntary, self-timed touch are a simplified analogue, so the expected effect is more modest than the clinical device.

Deep dive: The Shore Protocol.

Noise Colours: Pink, Brown and White

For comfort and sleep, the colour of the noise matters. Pink noise is the balanced clinical standard for notched therapy; brown noise is deeper and many find it easiest for sleep; white noise is bright and can be fatiguing. None of these “treats” tinnitus on its own — they make it less intrusive.

Deep dive: Pink, Brown & White Noise for Tinnitus.

The One Thing That Decides Whether It Works

Every frequency-targeted method (notched, ACRN) depends on knowing your tinnitus pitch accurately. An octave error places the therapy on the wrong part of the auditory map and quietly wastes weeks of effort. Do a careful pitch match with an octave-confusion check before committing.

Deep dive: Finding Your Exact Tinnitus Frequency.

How to Actually Use Sound Therapy

• Calibrate first. Match your pitch and validate it, ideally with a brief residual-inhibition check.
• Keep the volume low. A “mixing point” where the sound blends with the tinnitus — never loud enough to fully bury it.
• Be consistent. 1–2 hours daily for retraining methods; consistency beats marathon sessions.
• Give it weeks, not days. Measurable change typically takes 6–12 weeks for notched therapy and longer for ACRN.
• Address sleep and stress in parallel. They strongly modulate tinnitus perception.

See also: Tinnitus and Sleep and evidence-based options to reduce the ringing.

Realistic Expectations

Sound therapy is not a cure and no honest source should promise one. Realistic goals are reduced loudness, reduced intrusiveness, and faster habituation so the tinnitus stops commanding attention. Many people reach a point where it is still present but no longer distressing. Some respond strongly, some modestly, some not at all — and a careful, consistent, correctly-calibrated approach gives you the best chance.