'The Sound Machine' by Roald Dahl

I just read a tale of Roald Dahl titled ‘A sound Machine’ and I would like to share with you the plot of this narration:

This text is about a man who invented a machine to hear what the human ear cannot perceive. It’s known that there are sounds with too many vibrations or with too few vibrations which are out of the range of the human ear. Nonetheless, others animals have better ears (better: hearing) than we (do or have) and can hear some of those sounds, for instance, dogs.

When the main character of this tale uses his machine, he notices that the flowers and the trees scream when somebody cuts their stems. He tries to tell that to a friend. His friend uses the earphones of the machine and he blows the trunk of a tree besides his friend. However, immediately after the hit, the tree falls over the machine and the friend has to move away from the machine so he would not get squashed. Because of this, the friend couldn’t listen to anything with the machine and went out of there thinking that the main character was a mad. or was a madman.

In my opinion, this tale is interesting because it offers a vision about a man obsessed with the sense of the hearing in the same way that the novel ‘Perfume: The Story of a Murderer’ tells the story of a man who has a particular relation with the sense of the taste.