It is true that hearing is not listening. Listening, like decent conversation "skills", is a learned perception. It takes practice no matter how keen, acute, fully functioning the hearing is, to listen to sound a person must put effort and attention to get better at hearing the abstract details. Without practice, and especially if the person has never heard the component, all is air. I have developed sophisticated listening skills over many years, composing, playing, and also developing a high end sound system. No doubt the trolls will love my comments.