Bernie Krause
http://www.ted.com/talks/bernie_krause_the_voice_of_the_natural_world#
The world soundscape project:
http://www.sfu.ca/~truax/wsp.html
Hildegard Westerkamp
http://www.sfu.ca/~westerka/bio.html
John Cage about silence
https://www.youtube.com/watch?v=pcHnL7aS64Y
Raymond Murray Schafer
http://en.wikipedia.org/wiki/R._Murray_Schafer
Pauline Oliveros
http://en.wikipedia.org/wiki/Pauline_Oliveros
Maryanne Amacher
http://en.wikipedia.org/wiki/Maryanne_Amacher
Tomoko Sauvage
http://o-o-o-o.org
Tori Vrånes
http://www.toriwraanes.com
Paul Payhuysen
http://www.paulpanhuysen.nl/
Gordon Monahan
http://www.gordonmonahan.com/pages/home.html