sometimes, voice-tracking is done so that people can do other jobs. for example, a dj may also have a job as a program director or general manager. voice-tracking allows that person to record a three-hour shift in less than a half-hour, leaving him or her time to do office work. a popular live weekday morning radio host can record parts for a saturday show, allowing him or her to be on the air six days a week without spending more time at the station. it is also helpful during holidays such as christmas or easter, when people are off spending time with their families.