What is considered high and low frequency?

How are sounds measured? Frequency is measured in hertz (Hz) [hurts]. A low- frequency sound is about 500 Hz or lower. A high- frequency sound is about 2,000 Hz and higher .

High frequencies produce more oscillations. The units of frequency are called hertz (Hz). Humans with normal hearing can hear sounds between 20 Hz and 20,000 Hz . Frequencies above 20,000 Hz are known as ultrasound.3 Tem 2018

High-frequency oscillations in the range of 250–500 Hz have also been reported under pathological conditions such as interictal epileptic discharges.