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A <dfn>clock</dfn> determines the speet at which one or more systems
operate. In the audio world this is generally referred to as
- <a href="http://en.wikipedia.org/wiki/Word_clock" title="http://en.wikipedia.org/wiki/Word_clock">Word Clock</a>.
+ <a href="https://en.wikipedia.org/wiki/Word_clock" title="https://en.wikipedia.org/wiki/Word_clock">Word Clock</a>.
It does not carry any absolute reference to a point in time: A clock is
used to keep a system's sample rate regular and accurate.
Word clock is usually at the frequency of the sample rate —