What is the frequency range considered typical for human speech?

The frequency range typical for human speech primarily falls between 500 and 2000 hertz. This range encompasses the fundamental frequencies and important harmonic components that enable the intelligibility of spoken language. Most consonants, which are crucial for understanding speech, occur in this frequency range, along with the vocal characteristics of the human voice.

In this range, the clarity and intelligibility of speech are optimized. Frequencies below 500 hertz are generally associated with low-frequency sounds that contribute less to the understanding of speech, while frequencies above 2000 hertz can enhance clarity but are not as critical for the fundamental aspects of speech recognition. Therefore, the choice reflecting 500 to 2000 hertz accurately represents the frequency range necessary for effective communication and understanding in human speech.