[Freeswitch-users] Detecting Energy Levels on a Channel with mod_lua

Peder peder at networkoblivion.com
Mon Mar 1 16:31:14 PST 2010

What's a "media bug"?


From: freeswitch-users-bounces at lists.freeswitch.org
[mailto:freeswitch-users-bounces at lists.freeswitch.org] On Behalf Of Michael
Sent: Monday, March 01, 2010 6:15 PM
To: freeswitch-users at lists.freeswitch.org
Subject: Re: [Freeswitch-users] Detecting Energy Levels on a Channel with



On Mon, Mar 1, 2010 at 2:59 PM, Mathieu Rene <mrene_lists at avgs.ca> wrote:

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.

Show off! :) Related question: do media bugs allow you to access this kind
of information? Just curious...


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