You might also want to consider the Vincent Voice Library at Michigan State University in East Lansing. It's about 70 miles from the Detroit airport, but they have a large collection of spoken word recordings: http://vvl.lib.msu.edu/
Project Assistant, Sound Direction
Archives of Traditional Music
From: Association for Recorded Sound Discussion List [mailto:[log in to unmask]] On Behalf Of Sabine Gruffat
Sent: Friday, May 07, 2010 5:32 PM
To: [log in to unmask]
Subject: [ARSCLIST] sound archives for detroit, mi and brooklyn, ny
Hi everyone my name is Sabine Gruffat and I am an Asst. Professor at
UW-Madison in the Communication Arts department.
I am doing two projects and I am looking for field recordings from
both Detroit (MI) and Brooklyn (NY).
Specifically, I am looking for archival sounds. Do you know where I
might start doing research on this topic?