I'm not sure whether you actually want all the words, or the actual sounds traces..
It's typically considered adequate that the major parties to the investigation support a summary of the words and cite what they feel are important sounds in a written report. If you as a reader feel that you have something significant to offer in support of the investigation after reviewing the reports then you can petition on your own.
If on the other hand significant information is left out, you might hear about this from the parties themselves in their comments on the final report..
I'm not trying to be complete here,I'm just trying to understand what you really want. and why.