What is Buffer Underrun? [closed]

It's difficult to tell what is being asked here. This question is ambiguous, vague, incomplete, overly broad, or rhetorical and cannot be reasonably answered in its current form. For help clarifying this question开发者_JAVA百科 so that it can be reopened, visit the help center. Closed 11 years ago.

Just what the title states - What does Buffer Underrun mean?

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It's when a buffer that's being read from (and should preferably always have data available) runs empty.

An audio output device is a good example. An audio device will read its buffer at a constant rate, and unless you keep supplying it data at a fast enough rate, the buffer will run out. And it'll sound nasty.