[Asterisk-Dev] Voice energy detection: coder wanted

[John Todd]

I have a requirement from one of my customers (in the emergency 
services arena, I am told) to develop a voice energy detection system 
for Asterisk.  This would be to detect the difference between an 
answering machine, and a human.  This detection need only be very 
basic, and probably will hook into the existing routines in dsp.c 
(unless you have a cadence and tonal module already built.)

I am not a C programmer, so I post this here to see if anyone would 
want to provide to me a dollar estimate for development of an 
extension to Dial that would provide an alternate hangup cause of 
type "RECORDING" or something similar as an output into the CDR's. 
Of course, the system would be GPL'ed after development.

This is a first run at what hopefully will be an eventual integration 
of more sophisticated voice detection/recognition tools such as 
Sphinx into Asterisk.  However, one step at at time.

Replies to me privately, off-list.

JT