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Add a bit of documentation (thanks, I-MOD) on what the silence threshold

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constant actually does and what values are valid for it.


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@158857 65c4cc65-6c06-0410-ace0-fbb531ad65f3
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Tilghman Lesher
2008-11-24 21:52:34 +00:00
parent 926eb0940b
commit 455284ebc1
1 changed files with 7 additions and 0 deletions
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7
main/dsp.c
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@@ -105,6 +105,13 @@ static struct progress {
{ GSAMP_SIZE_UK, { 400 } }, /*!< UK */ { GSAMP_SIZE_UK, { 400 } }, /*!< UK */
}; };
/*!\brief This value is the minimum threshold, calculated by averaging all
* of the samples within a frame, for which a frame is determined to either
* be silence (below the threshold) or noise (above the threshold). Please
* note that while the default threshold is an even exponent of 2, there is
* no requirement that it be so. The threshold will accept any value between
* 0 and 32767.
*/
#define DEFAULT_THRESHOLD 512 #define DEFAULT_THRESHOLD 512
enum busy_detect { enum busy_detect {