First sample sounds from a MAX/MSP implementation of 1973 David Tudor Microphone patch under development (P. Edelstein, Oct 2013). Examples generated using convolution reverb rather than real acoustic spaces and microphone feedback in the space. Credits:  tconvolve~ Thomas Resch, impulse recordings done by Matt Rogalsky using Rainforest Installation objects  (Edelstein, Driscoll, Rogalsky) from Governors Island 2010 and other room resonances.  Beware of some high gain and raucus passages. The sound is the result of a modulated feedback loop through a convolution.