Hildegard Westerkamp is a composer, educator, and radio artist whose career began when she joined the influential World Soundscape Project under the direction of R. Murray Schafer. She has written prolifically on soundscapes and listening and has given lectures and conducted soundscape workshops around the world. The majority of her compositional output deals with aspects of the acoustic environment, including soundscapes, voices, noise, silence, music, and the sounds of different cultures.