18 Aug
2006
18 Aug
'06
7:22 p.m.
On Friday 18 August 2006 23:07, Stephen Cameron wrote:
[...]
xruns are, I think, JACK's equivalent of my
deadline-missed
message. It calls such tardiness an "xrun". JACK is the
Jack Audio Connection Kit, an app that is useful for sync'ing
and communicating audio data between various audio apps that
know how to talk to JACK.
Actually, I think xrun is just audio hacker shorthand for "overrun or
underrun". :-)
An overrun is when your application is too late to read imput data
before buffers are full and data is lost.
An underrun is when your application is too late to write data before
the output buffer runs out of data, thus causing a glitch in the
output. (Often heard in CD burning discussions, where a buffer
underrun will ruin the CD being written, unless the CD writer can
pause writing instantly in a controlled fashion.)
//David Olofson - Programmer, Composer, Open Source Advocate
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