Bernie Krause: The voice of the natural world

Bernie Krause has been recording wild soundscapes -- the wind in the trees, the chirping of birds, the subtle sounds of insect larvae -- for 45 years. In that time, he has seen many environments radically altered by humans, sometimes even by practices thought to be environmentally safe. A surprising look at what we can learn through nature's symphonies, from the grunting of a sea anemone to the sad calls of a beaver in mourning.

Surrounded by Soundscapes

Composer Charles Amirkhanian, soundscape ecologist Bernie Krause, and film editor and sound designer Walter Murch consider the environmental implications and artistic possibilities of aural soundscapes and ambient sounds.