The typical range of human hearing is 20 to 14,000 hz
Around 20 Hz to 20 kHz is the range of frequencies that humans can hear. However, as they become older, human infants lose some of their high-frequency sensitivity; the highest limit in ordinary adults is frequently closer to 15–17 kHz. Human neonates can actually hear sounds somewhat higher than 20 kHz. Although most speech frequencies fall between 100 and 4,000 Hz, the human ear can detect sounds between 20 Hz to 20,000 Hz (20 kHz).
Ultrasonic frequencies are those that are higher than 20,000 Hz. Many animals can hear ultrasonic frequencies even though they are outside the range of human hearing. A person with typical hearing may hear noises between 20 and 20,000 hertz (Hz). For voice processing, frequencies between 500 and 4000 Hz are crucial.
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