<div dir="ltr">Take a look at the Wait_For_Silence module and see if that gives you the required code for what you're trying to do. I haven't looked at it, but I suspect you can hack something together to make it work in more general terms. Calling the wait_for_silence module is one thing, since it doesn't generate any audio on its side, but unless you're looking for silence on both the A and B legs at the same time, I worry you'll have issues.<div><br></div><div>Anyways, my $0.02</div></div><div class="gmail_extra"><br clear="all"><div><div class="gmail_signature"><br><div>Nicholas Blasgen</div><div>Developer</div><div>Predictive Dialer Limited</div><div>+1 (724) 252-7436 (cell)</div><div>Skype: nblasgen</div><div><br></div><div><font color="#666666">24/7 Support available:</font></div><div><font color="#666666"><a href="http://www.hellohunter.com" target="_blank">www.hellohunter.com</a> | (800) 513-5555 | skype hello.hunter | <a href="mailto:support@hellohunter.com" target="_blank">support@hellohunter.com</a></font></div></div></div>
<br><div class="gmail_quote">On Thu, Jun 18, 2015 at 2:35 PM, Navin Agarwal <span dir="ltr"><<a href="mailto:agarwal.navin.rvce@gmail.com" target="_blank">agarwal.navin.rvce@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><span style="font-size:12.8000001907349px">Hello Everyone,</span><div style="font-size:12.8000001907349px"><br></div><div style="font-size:12.8000001907349px">I am working on a FreeSWITCH project where I need to detect some features of an on-going call such as a period of silence, low volume and high volume, and report it to the user on-the-fly.</div><div style="font-size:12.8000001907349px"><br></div><div style="font-size:12.8000001907349px">I found a function "is_silence_frame" in "switch_ivr_async.c" which detects if a frame is a silence frame relative to a given threshold. I tried using that but I did not find any difference in the energy levels of frames which were silent and ones in which someone was speaking, so I am not able to use it.</div><div style="font-size:12.8000001907349px"><br></div><div style="font-size:12.8000001907349px">Can someone please help me in understanding how this works or if there is any other code or module that I can use to detect silence, low volume and high volume in an on-going call. Basically the idea is to perform some live analysis of a call and the above three are the ones that I could come up with till now.</div><div style="font-size:12.8000001907349px"><br></div><div style="font-size:12.8000001907349px">Any pointers here will be really appreciated.</div><div style="font-size:12.8000001907349px"><br></div><div style="font-size:12.8000001907349px">Thanks,</div><div style="font-size:12.8000001907349px">Navin Agarwal</div></div>
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