Pratt is a highly specialized scientific tool designed for those involved in the study of linguistics. The Pratt tool permits a researcher the ability to analyze spectrograms.
Pratt garners high marks in part because it is capable of importing a diverse and broad range of audio formats. In addition, Pratt is capable of analyzing sound in detail. It also is able to automize analysis through the use of scripts.
Pratt really is intended for linguists. As a result, it is not readily accessible to individuals who are not linguists. On the other hand, non-linguists would likely not have a meaningful need for this tool.