This is likely because of his "echoic" memory.
Echoic memory is the part of sensory memory utilized by the auditory framework. The term 'echoic' is gotten from the word 'reverberate', and alludes to the continuation of the sound or the tangible contribution from the sound-related framework.
Echoic memory is equipped for holding a lot of auditory data, however just for 3– 4 seconds. This echoic sound is replayed in the brain for this concise measure of time quickly after the introduction of the auditory upgrade.