<html><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">An easy way is to do an average of the absolute value of each L16 sample over a period of time. Im not quite sure how to access audio channels from within Lua but if you are in C you can use switch_core_session_read_frame() to get audio frames.<div><br><div apple-content-edited="true"> <span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-size: medium; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; "><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div><span class="Apple-style-span" style="font-size: 12px; "><div>Mathieu Rene</div><div>Avant-Garde Solutions Inc</div><div>Office: + 1 (514) 664-1044 x100</div><div>Cell: +1 (514) 664-1044 x200</div><div><a href="mailto:mrene@avgs.ca">mrene@avgs.ca</a></div><div><br></div><div><br></div></span></div></div></span><br class="Apple-interchange-newline"> </div><br><div><div>On 1-Mar-10, at 5:29 PM, Michael Collins wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><br><br><div class="gmail_quote">On Sun, Feb 28, 2010 at 3:36 AM, Matthew Fong <span dir="ltr"><<a href="mailto:mattdfong@gmail.com">mattdfong@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"> Is there anyway to detect energy levels on a channel that is being controlled by mod_lua? Please point me in the right direction if there is. Thanks.<div><br></div></blockquote><div>Is there a way to do it on a channel that is not controlled by Lua?!<br> -MC<br></div></div><br> _______________________________________________<br>FreeSWITCH-users mailing list<br><a href="mailto:FreeSWITCH-users@lists.freeswitch.org">FreeSWITCH-users@lists.freeswitch.org</a><br>http://lists.freeswitch.org/mailman/listinfo/freeswitch-users<br>UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users<br>http://www.freeswitch.org<br></blockquote></div><br></div></body></html>