Animals are used in auditory research, music cognition studies, and noise exposure experiments with welfare implications that require careful oversight.
Sound research animal welfare involves both the welfare costs of experimental noise exposure and the welfare benefits of acoustic enrichment. Auditory research that deliberately induces hearing damage or exposes animals to aversive loud sounds causes welfare harm that requires strong scientific justification. In contrast, acoustic enrichment research that tests whether music or nature sounds improve animal welfare in captive settings can produce welfare benefits without significant welfare costs. Facility noise levels from equipment, alarms, and human activity can chronically stress laboratory animals even outside of formal experiments. Welfare-conscious facilities monitor ambient noise levels and implement noise reduction measures.