Exposure to loud noise can increase the risk of tinnitus, but the exact cause may be unclear. A person may also hear hissing, roaring, or whistling sounds, which may be high or low pitched.

“These sounds can take various forms, ranging from subtle background noise to more pronounced and bothersome sensations, and are often unique to each individual. Ringing, buzzing and hissing are ...

Hissing is also part of the cockroach's mating ritual, and can be used as an effective alarm cry. Most insects that make noise do so by rubbing their body parts together or by employing vibrating ...