Which frequency range corresponds to optimal human hearing sensitivity?

Optimal human hearing sensitivity is typically found within the frequency range of 2000 Hz to 4000 Hz. This range is crucial for understanding speech and other critical sounds in our environment. During this frequency range, the human ear is most adept at detecting soft sounds and discerning speech, which is essential for effective communication.

Research shows that many of the phonetic elements of human speech, especially consonantal sounds that are important for distinguishing between different words and meanings, often fall within this frequency range. This heightened sensitivity is significant for hearing aid fitting and audiological assessments, as it underscores the frequencies that should be emphasized when developing amplification strategies to assist individuals with hearing loss.

The frequencies surrounding this optimal range may still contribute to overall hearing ability, but they are not as critical for speech perception, hence the focus on the 2000 Hz to 4000 Hz spectrum in both hearing assessments and interventions.