Tinnitus is not always a constant ringing. While roughly two-thirds of people with tinnitus experience it continuously, about one-third have intermittent episodes that come and go. The sound itself also varies widely: it can ring, buzz, roar, whistle, hum, click, hiss, or squeal. Some people hear a steady tone, others a rhythmic pulsing, and still others notice their tinnitus shifts in volume or pitch throughout the day.
What Tinnitus Actually Sounds Like
Ringing is the most commonly reported description, which is why the word “ringing” dominates the conversation around tinnitus. But the phantom sound takes many forms. Some people hear a low roar or hum, others a high-pitched whistle or hiss. A few describe clicking or buzzing. The sound can appear in one ear, both ears, or seem to come from inside the head with no clear direction.
The type of sound you hear sometimes points to its underlying cause. A steady high-pitched tone, for instance, is often linked to damage in the inner ear or auditory nerve. Clicking sounds can come from involuntary contractions of two tiny muscles in the middle ear, a condition called middle ear myoclonus. These clicks tend to be rhythmic but don’t match your heartbeat. A whooshing or thumping sound that keeps pace with your pulse is a distinct form called pulsatile tinnitus, which has its own set of causes.
Constant vs. Intermittent Tinnitus
In a study of over 300 tinnitus patients, 67.8% reported constant, daily tinnitus, while 32.2% described it as intermittent. So while constant tinnitus is more common among people who seek help for it, a significant share experience episodes that fade in and out. Some people notice tinnitus only in quiet rooms at night. Others have stretches of days or weeks without it before it returns.
Tinnitus that appears briefly after a loud concert or a stressful day and resolves within hours or days is extremely common and usually not a sign of a lasting problem. Clinically, tinnitus is considered potentially chronic when symptoms persist for six months or longer. Mild, short-lived episodes often improve on their own without any intervention.
Why the Volume Changes
Even people with constant tinnitus notice that the perceived loudness fluctuates. Several factors drive these shifts.
Sleep plays a surprisingly direct role. Research from the University of Oxford found that tinnitus-related brain activity appears to be suppressed during deep, slow-wave sleep. As that deep sleep pressure drops later in the night or after poor sleep, the abnormal neural signals behind tinnitus regain their strength. This helps explain why many people report louder tinnitus after a bad night’s rest or first thing in the morning.
Stress and fatigue are two of the most reliable amplifiers. They don’t create the tinnitus, but they lower the brain’s ability to filter it out, making the sound more noticeable. Background noise matters too: tinnitus tends to feel louder in silence because there’s nothing to mask it. Intense noise exposure can trigger temporary spikes that last hours to days.
Somatic Tinnitus
Some people can literally change their tinnitus by moving their body. In somatic tinnitus, clenching the jaw, turning the head, or tensing neck muscles alters the pitch or loudness of the sound. This happens because nerve fibers from the jaw and neck feed into the same brain areas that process sound. When those nerves fire differently due to muscle tension or joint problems, they can dial the tinnitus up or down. If you notice your tinnitus changes when you clench your teeth or look sharply to one side, a somatic component is likely involved.
Pulsatile Tinnitus: A Different Category
Pulsatile tinnitus stands apart from the more common “ringing” type. Instead of a steady tone, you hear a rhythmic swooshing or thumping that matches your heartbeat. You’re essentially hearing blood flowing through vessels near your ears, and the sound gets louder when blood flow increases, like during exercise or when lying down.
This form has identifiable vascular or structural causes: high blood pressure, anemia, atherosclerosis (narrowed arteries), abnormal tangles of blood vessels near the ear, or elevated pressure of the fluid surrounding the brain. Because these causes are often treatable, pulsatile tinnitus warrants medical evaluation. Unlike most forms of tinnitus, it can sometimes be heard by a doctor using a stethoscope.
Tinnitus Without Hearing Loss
A common assumption is that tinnitus only affects people with obvious hearing damage, but that’s not the case. Studies consistently find that 20 to 50% of tinnitus patients have hearing that falls within normal limits on a standard hearing test. One clinic reported about a third of their tinnitus patients had normal or near-normal audiograms.
This doesn’t necessarily mean nothing is wrong. Standard hearing tests only measure a limited range of frequencies and can miss subtle damage to the hair cells of the inner ear or to the nerve fibers connecting the ear to the brain. But for the person experiencing tinnitus with “normal” hearing, it’s worth knowing that this is well documented and not unusual. Across the U.S. population, roughly 11% of adults, an estimated 27 million people, experience some form of tinnitus.
What Shapes Your Experience
Two people with the same audiogram and the same underlying cause can have vastly different tinnitus experiences. One might barely notice a faint hiss during quiet moments. The other might struggle with a loud, intrusive tone that disrupts concentration and sleep. The difference often comes down to how the brain’s attention and emotional networks respond to the signal, not just the signal itself.
This is why tinnitus that starts as intermittent can sometimes feel like it becomes constant. As the brain learns to monitor the sound, it gets better at detecting it, which paradoxically makes it seem louder and more persistent. The reverse is also true: many people with chronic tinnitus find that over months or years, their brain gradually turns down the volume as it stops treating the sound as important. This process, called habituation, is the basis of most tinnitus management strategies, including sound therapy and cognitive behavioral approaches.