Statistical properties of natural acoustic environments
University of California, San Francisco
Traditionally we have characterized the auditory response of animals by subjecting them to simple, isolated stimuli such as pure tones or white noise in a sound isolation booth. In the real world, animals and humans are subjected to a continuous barrage of complex sounds generated from many different sources. These sounds usually occur simultaneously over a wide range of intensities. In this talk, I will explore the statistical properties of a number of different natural acoustic environments. Linear recordings with a minimum of processing have been made in both natural and manmade environs. Amplitude, spectrotemporal and scaling properties of the sounds will be discussed and we will contrast these properties with those of natural images.