I watched an old episode of Cops last night and heard the distinctive heterodyning and a clarifier being used on dispatch to a Atlanta PD patrol car ?.....Anyone shed any light on this ?.
Sure it was "real" audio? Cops uses some "added in" radio traffic in the background. If you have ever listened carefully, there is a mix of actual dispatch audio (e.g. what was incidentally captured in real time during the shoot) and a set of reused filler audio.