Why do live events transmit faster to my digital radio than my TV? © Getty Images

Why do live events transmit faster to my digital radio than my TV?

Are you trying in vain to get the radio commentary in sync with the TV video?

Asked by: Mary Brooks, Totnes

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Digital audio or video is transmitted as a series of binary bits. Like a dam holding back water in a stream, broadcast equipment stores up a backlog, or cache, of data. Then, if there are dropouts in transmission, there’s a sufficient supply to maintain the signal without interruption. Some services buffer more than others, explaining the discrepancy between digital radio and digital TV.


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