It was in a collection of short stories in an Alfred Hitchcock anthology I believe. In the story, the guy uses this listening device that can hear things below and above human hearing (he can hear the flowers being cut by a neighbor because they scream). Any help would be greatly appreciated.
Roald Dahl's The Sound Machine
It was part of an anthology he wrote called "Someone Like You" which he published in 1953.
I remembered it as an episode of the 80s TV series "Tales of the Unexpected" which used a lot of his short stories.
People familiar with Dahl's kids books tend to be surprised that he also a write of adult fiction, including horror.