A cue tone is a message consisting of audio tones, used to prompt an action. In broadcast networks, a DTMF cue tone or subaudible tone was traditionally used to prompt insertion of a local TV commercial or radio advertisement by the broadcast automation equipment at the broadcast station or cable headend.
A cue tone is a message consisting of audio tones, used to prompt an action. In broadcast networks, a DTMF cue tone or subaudible tone was traditionally used to prompt insertion of a local TV commercial or radio advertisement by the broadcast automation equipment at the broadcast station or cable headend.
Source: Wikipedia "Cue tone" · CC BY-SA 4.0
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