If you’ve used the NASA TWA Calculator Noise Exposure Dose Trainer, we’d like your feedback and some help over the several weeks as we work toward a release of v2. The upgraded TWA Calculator will enable the application to read user-developed input files in the form of exposure scenarios and calculation properties tabulated in spreadsheet

The NASA Auditory Demonstration Laboratory has produced TWA Calculator, a computational and visual tool for teaching noise exposure dose concepts in an occupational hearing conservation context. TWA Calculator enables the user to easily create daily noise exposure scenarios from a series of component exposure events. TWA Calculator demonstrates the relationship between sound level, duration, and