Earlier quoted context omitted.
That office is mostly empty space, and with all the effort to noise damp one has to ask - why bother? Just add offices at that point. At Microsoft you could always chat in the halls and people would just close their doors.
Did you read the part about 'Library Rules'? It's a cultural leap, but that would make all the difference. Christ, I'm sitting in an open plan office right now with two telephone conversations going on in my right ear. Thank the hardware overlords for headphones ...
What causes people to whisper in libraries but talk loudly and disturb others in an open office plan?
Perhaps some segmentation of open office plans would also be interesting -- a "loud" zone, a semi-quiet zone and a silent zone. I don't know how workable this would be for teams unless you had hot-desking, which is something else people seem to hate, but still. Engineers who need to work on a difficult problem for a while can use the silent zone, while groups who need lots of communication and the perennial extroverts are free to use the louder spaces.