Convention Paper
The Inaudible World: Measuring Sounds Perceived by Non-Human Life
AES Convention 152 · Paper 10572 · May 2022
Abstract
The deleterious effects of audible and inaudible sounds on human and non-human life are becoming self-evident. Surveying hearing ranges across species show perceptual capabilities that extend into the infrasonic <20Hz and ultrasonic >20kHz ranges. This is far beyond the limited bandwidth of sounds perceived by human hearing mechanisms. Human-centric metrics and standards are insufficient to measure sounds perceived by other living beings who co-inhabit earth’s acoustic environments. Such measurements are band limited to the 20Hz-20kHz human frequency range and audibility thresholds. These include the dBA weighting curve which form the majority of current health and safety standards and policies. Explorations of this area are currently creating new knowledge systems, opening up new areas of research in audio perception and facilitating the creation of new measurement devices and scales.
