What type of noise is narrow band noise typically used for?

Narrow band noise is commonly utilized in audiometry, primarily when assessing an individual's hearing sensitivity across specific frequencies. This type of noise consists of a limited range of frequencies centered around a particular frequency, which allows for more accurate testing results. In this context, narrow band noise serves as an effective tool for masking pure tones during hearing assessments. By creating a sound environment that minimizes the influence of outside noise or competing sounds, it isolates the specific pure tones that need to be evaluated.

Using narrow band noise can help in determining thresholds for hearing by ensuring that the test subject focuses solely on the specific tones being presented, rather than being distracted by ambient noise. This is essential for obtaining precise audiometric results, particularly in cases of hearing loss where accurate measurements are critical for developing appropriate treatment plans.