[Freeswitch-users] mod_conference: recommended values for comfort noise and energy level?

[Frederic Jean]

Hello group,

We have setup a new conference service and it works well, except for 
some complaints here and there about the voice quality;

I was then wondering what are the recommended values for comfort noise 
and energy level as per your experience for conferences?

My feeling is that comfort noise should be disabled but I am unsure 
about the energy level; is this a try and see parameter, or should it 
ideally simply be set to 0 or a small value for a conference call 
system?

Presently:

<profile name="confmodreception">
       <param name="domain" value="$${domain}"/>
       <param name="rate" value="16000"/>
       <param name="ivr-dtmf-timeout" value="2000"/>
       <param name="interval" value="20"/>
       <param name="caller-controls" value="reception"/>
       <param name="moderator-controls" value="reception"/>
       <param name="energy-level" value="200"/>
       <param name="alone-sound" value="conference/conf-alone.wav"/>
       <!-- <param name="moh-sound" value="silence"/> -->
       <param name="comfort-noise" value="true"/>
       <param name="suppress-events" 
value="start-talking,stop-talking,energy-level,volume-level,gain-level,energy-level-member,play-file,floor-change,play-file-done,play-file-member"/>
       <param name="enter-sound" 
value="tone_stream://%(200,0,500,600,700)"/>
       <param name="exit-sound" 
value="tone_stream://%(500,0,300,200,100,50,25)"/>
       <param name="muted-sound" 
value="/usr/local/freeswitch/sounds/fr/ca/june/conference/16000/conf-muted.wav"/>
       <param name="unmuted-sound" 
value="/usr/local/freeswitch/sounds/fr/ca/june/conference/16000/conf-unmuted.wav"/>
       <param name="terminate-on-silence" value="120"/>
       <param name="locked-sound" 
value="/usr/local/freeswitch/sounds/fr/ca/june/conference/16000/conf-locked.wav"/>
       <param name="is-locked-sound" 
value="/usr/local/freeswitch/sounds/fr/ca/june/conference/16000/conf-is-locked.wav"/>
       <param name="is-unlocked-sound" 
value="/usr/local/freeswitch/sounds/fr/ca/june/conference/16000/conf-is-unlocked.wav"/>
     </profile>


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