ABSTRACT
Or is silence the absence of noise? Even noise is hard to define: is it insects on a quiet summer’s day, waves on rocks, wind in trees or over snow? But there’s plenty more noise than that around us. The average house is full of noise-producing equipment – from freezers, furnaces and pumps to barely audible electric clocks and lamps, all dead mechanical sounds, not sounds of life like speech, music, crackling fire, wind in chimney, rain on glass.
