September 2005
Intermediate to advanced
408 pages
16h 20m
English
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Name
BackgroundDetect() — Plays a file in the background and detects talking
Synopsis
BackgroundDetect(filename[,sil[,min[,max]]])
Similar to Background(), but
attempts to detect talking.
During the playback of the file, audio is monitored in the
receive direction. If a period of non-silence that is greater than
min milliseconds yet less than
max milliseconds and is followed by silence
for at least sil milliseconds occurs, the
audio playback is aborted and processing jumps to the talk extension, if available.
If unspecified, sil,
min, and max
default to 1,000 ms, 100 ms, and infinity, respectively.
Returns -1 on hangup, and
0 on successful playback completion
with no exit conditions.
exten => 123,1,BackgroundDetect(tt-monkeys)
exten => 123,2,Playback(im-sorry)
exten => talk,1,Playback(yes-dear)See Also
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