The ear’s 120-dB and 20 Hz-20 kHz working range exceeds man-made devices

Evidence

This chapter has drawn a picture of the first processing steps conducted in our hearing. The ear has a certain working range limited in frequency and in SPL. The range is actually very impressive, as the 120-dB range in SPL with the lowest levels very low and the frequency range starting from 20 Hz and ending at 20 kHz are hard to achieve with man-made devices. — Ville Pulkki, Matti Karjalainen, Communication Acoustics- An…, 1060

Categorization

• corroborated: 2 independent passages support this claim — Ville Pulkki, Matti Karjalainen, Communication Acoustics- An…, 1060