Les_creative_edge has put into words the fascinating phenomenon of enhanced enjoyment of analog tape recordings with their ever present but still unobtrusive background hiss.
This has long been noted by myself and another family member who feel many CD's can have a sterile or cold quality due to the background of total silence, unlike the real world in which we live and listen.
Thanks to Les_creative_edge for explaining why when tape recording he chooses either Dolby B or C noise reduction in order to better match the source material.