Coming soon: TWA Calculator v2 (requesting user input)

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 format.   Similarly, an exposure/calculation scenario developed while using TWA Calculator may be saved in a spreadsheet format and later read as an input file.  This new capability will enable instructors to easily prepare and save example cases ahead of time and will facilitate the use of TWA Calculator as a self-study and homework tool.

We’re looking for the following input:

  • Have you discovered any bugs or problems in your use of TWA Calculator to date?  If so, please contact us before 8/13, since we have the opportunity to fix them now.
  • Do you have any examples that you’d be willing to contribute to a collection that would be offered on the EARLAB website as downloadable input files?   These examples would consist of numerical data in spreadsheet format with a short accompanying narrative on its intended use (teaching notes).  For instance, an example might consist of one or more 8-hour (or other-length) scenarios, each comprising a series of exposure events (sound levels and associated durations) that illustrate a particular concept or teaching point.  Teaching points could cover the effects of criterion/exchange rate, sound level threshold or rounding schemes as well as the effects of level/duration combinations on total exposure/dose.  Please contact us and let us know if you have a favorite example or teaching case you can share.
  • Would you be willing to beta-test v2, particularly this new import/export capability, in early September (est. 9/1 – 9/10), with a quick (~ 1 week) turnaround time?   Please contact us if you can help!
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