A disturbing book set during WW2. A sound engineer is obsessed with recording all human sounds, not just the normal voices, but a person sleeping, even a soldier's death rattle at the front. He comes into contact with a large family, that of Goebbels's. The book goes right up to the last days in the bunker, even including Hitler as a patient in hospital eating only chocolates. Hermann, the engineer, and helga, the eldest of the siblings, are the book's two narrators telling us about the events leading up to and the last days in the bunker.
I suppose, an obvious comparison would be Perfume, another book about obsession, though of scent. I had a similar feeling of discomfort, yet grim fascination with the subject. Hermannfeels he was pushing the boundaries to get to the ultimate truth of human sounds, but his subjects sometimes paid the ultimate price.