"Midterm" Review and the Final Stretch

It has almost been a month since the last post and within that time I have had some promising results! 

I was able to compare the acoustic performance of three real courtrooms with my latest design. In short, my results were great. Here is the proof: 

The following tests show the Reverberation Time, Reflection patterns, STI, C50, and Total SPL of three real courtrooms. Hope everyone remembers what those metrics mean! 

As you can see the Marin Courtroom performs better than the other two...all of the metrics are where we want them to be for Speech Intelligibility. Next up, the test results from my latest layout:

I have shown the results as a three step process, showing how the shape (section) of the room greatly improves the desired metrics.

You can see that my Reverberation Time is well below the desired 1 sec...even across the target frequency range. My C50 is also above 0 over the entire range. Lastly, my STI at the furthest point from a sound source in the room is a .86, this is great considering the highest rating is a 1. 

Next up are the plan, section, and layouts of my latest design. 

What I liked most about this layout was the addition of another witness stand to accompany the double lectern. This gives, in my opinion, a unique cross and direct examination process. The main purpose of the double witness layout is to minimize bias and provide equal distances and views to both attorney teams. 

I only have about 4 more weeks to construct an acoustic model, compile a "coherent" report, and produce a presentation which gets all of this information across... :/ 

Hopefully the next few posts will document the progress of the model, look for this progress very soon!