Just what is a wordclock?

Fojar

New member
I don't know a lot about digital recording, and I see this word around a lot. What does it mean?
 
Here is one definition pulled from one of the many recording dictionary/glossaries on the net:

Wordclock - The precise and accurate timing of digital audio samples is critical to the correct operation of interconnected digital audio equipment. The 'metronome' that governs sample timing is called the Word Clock (sometimes conjoined to 'Wordclock', or abbreviated to 'Wclk'). However, word clock does more than merely beat time; it also identifies the start and end of each digital word or sample, and which samples belong to the left or right channels. Digital interfaces such as the AES-EBU and S/PDIF embody clock signals within the data stream, but it is often necessary to convey a discrete word clock between equipment as a square wave signal running at the sampling rate. Dedicated word clock inputs and outputs on digital equipment generally use BNC connectors (the kind of terminals commonly used for video).

Or, Like Yogi says on the AFLAC commercials, its the thing that if you don't have one you don't need one; but if you have more than one you need one.
 
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