Both "StarSpangledBanner.*" sound files are from the United States
Air Force (http://www.bolling.af.mil/band/index.htm) and contain
the following notice:

NOTE: These audio selections are approved by the Department of the Air
Force for use in public service broadcasting, recruiting, educational
activities, and troop morale and retention. They are not for sale and
are to be used only within the scope of these Department of the Air
Force activities.

The ssb-22khz-stereo.wav file is from www.boston.org and its
distribution is covered by the statements in
ssb-22khz-stereo-copyright.html in this directory.