-Voicetracking is when a station pre-records material that is later going to be broadcast. For example, at any given radio station, a DJ that is live from 10pm to 1 am may also voicetrack the overnights, but not be in studio. You can tell the difference, because the sound quality is much worse.
- Another form of voicetracking is called "mass voicetracking", when there is the same material, but different songs, being broadcast on many different radio stations. One of the most notorious for that is Clear Channel, which owns many of the nation's Top 40s. The ones in the top 100 markets ordinarily do not use this (with some exceptions, like Pittsburgh's WKST and Chicago's WKSC), but many stations in smaller markets do.
VOICETRACKING harms YOU!