What is the frequency range for most speech sounds?

The frequency range for most speech sounds falls between 250 Hz and 4000 Hz, making the selected answer accurate. This range encompasses the fundamental frequencies and harmonics that are critical for the intelligibility of speech.

Within this frequency range, consonant sounds, which typically reside in the higher frequencies (around 2000 Hz to 4000 Hz), provide essential cues for understanding speech. Vowel sounds, which are usually lower in frequency (around 250 Hz to 1000 Hz), contribute to the tonal quality of speech. Therefore, the range from 250 Hz to 4000 Hz is where most important speech information resides, allowing for effective communication and comprehension.

Other options either include frequencies that are either too low or too high for typical speech sounds, which are not as relevant for interpreting spoken language. Understanding this frequency range is crucial for hearing aid dispensers and audiologists when assessing hearing capabilities and fitting devices to enhance speech perception.