 In the 1970s, Thomas Stockham of the University of Utah developed an early digital reprocessing technique called "Soundstream" to remaster Caruso's recordings for RCA.This computer process removed or reduced some of the undesirable resonances and surface noise typical of the early acoustically recorded discs.These early digitised efforts were issued in part on LP, beginning in 1976 and were issued complete by RCA Victor on compact disc (in 1990, again in 2004 and a third time, in 2017).