[robomartin]

Many years ago I was involved in the design of several very high end listening environments. At that time I built a series Excel-based tools to analyze room acoustics and design wall, ceiling and floor treatments in order to fix problems.

I remember one room where we ended-up custom fabricating 150 Helmholtz resonators to tame the beast. If I remember correctly it had a 2,000 W sound system with an array of various speakers. The walls has six layers of drywall glued and screwed together. The concrete floor was isolated from walls and floated on hard rubber.

We ran impulse tests with specialized software as we went along to fine tune the resonators and other treatments. The speaker system manufacturer sent their acoustics expert to help. As an EE you sometimes get to work on projects far outside your area of expertise. I have always embraced those opportunities and usually come of of them having learned a ton of new and interesting stuff.

Interestingly enough I was showing these Excel tools to my oldest son the other day. He is getting into Excel and this workbook has examples of doing things with VBA one does not normally see on normal Excel spreadsheets. At that time I thought it could be interesting to re-code this with Python and build a neat little website around it. The comment on this thread by acqq made me come back to that thought. Could be interesting.