Intracochlear pressure in response to high intensity, low frequency sounds in chinchilla

In both human and chinchillas, intracochlear pressures increased with applied sound pressure up to about 120 dB SPL, but began to saturate at higher intensities. The exact saturation point and the saturation pressures showed a strong frequency dependence. Intracochlear pressure magnitudes in chinchillas show some similarities with those measured in humans, but also significant differences, particularly at very high intensity levels such as those found in a blast. These differences should be taken into account when conducting blast studies in chinchillas.