[Freeswitch-users] Mod_Conference Improvement (Denoise)

[William King]

That feature already exists, but appears to still be undocumented. Added
just over a year ago.
http://wiki.freeswitch.org/wiki/FS_weekly_2011_03_23

William King
Senior Engineer
Quentus Technologies, INC
1037 NE 65th St Suite 273
Seattle, WA 98115
Main:   (877) 211-9337
Office: (206) 388-4772
Cell:   (253) 686-5518
william.king at quentustech.com

On 01/16/2013 10:29 PM, Valer Nur wrote:
> I think the best way to solve this is by doing AGC first. This should
> make sure audio level is similar for all participants.
> 
> 
> ------------------------------------------------------------------------
> *From:* Anthony Minessale <anthony.minessale at gmail.com>
> *To:* FreeSWITCH Users Help <freeswitch-users at lists.freeswitch.org>
> *Sent:* Wednesday, January 16, 2013 6:23 PM
> *Subject:* Re: [Freeswitch-users] Mod_Conference Improvement (Denoise)
> 
> There is also the preprocess app which uses a media bug in the core for
> a variety of things but is incomplete it's using a bit of code from
> speex so we can certainly improve that as well.
> 
>  
> 
> 
> On Tue, Jan 15, 2013 at 8:58 PM, Michael Jerris <mike at jerris.com
> <mailto:mike at jerris.com>> wrote:
> 
>     If you wanted to implement something like this you could do so as a
>     media bug, it does not need to touch mod_conference in any way.
>      Take a look at mod_ladspa for an example of a similar module that
>     modifies audio using a media bug.  Give it a try and see if you can
>     get something working.
> 
>     Mike
> 
>     On Jan 15, 2013, at 8:03 PM, Michael Collins <msc at freeswitch.org
>     <mailto:msc at freeswitch.org>> wrote:
> 
>>     While I don't have a problem with the concept of noise filtering I
>>     have to point out that each member of the conference can have his
>>     or her own noise level setting. From fs_cli:
>>
>>     conference <conf name> energy <member_id|all|last|non_moderator>
>>     [<newval>]
>>
>>     You only need to apply it to the person who is in the noisy
>>     location. In fact, in the example configuration the user can dial
>>     9 to increase the energy threshold (for when he's in a noisy
>>     environment) or press 7 to decrease the threshold. Pressing 8 will
>>     reset the energy to normal, which I believe is 200.
>>
>>     -MC
>>
>>     On Tue, Jan 15, 2013 at 4:24 PM, Usama Zaidi <itsusama at gmail.com
>>     <mailto:itsusama at gmail.com>> wrote:
>>
>>         Hi,
>>
>>         I talked about this a while back on the channel, the way how
>>         energy-level is implemented in mod_conference isn't the right
>>         way to handle noise in my opinion because the participants
>>         that get bridged would have a different noise floor depending
>>         on where they are located, so if I set the value of
>>         energy-level too high to accommodate one participant, any
>>         other participant in a quite sitting would never get bridged,
>>         I proposed we should tackle this the way Asterisk does using a
>>         denoise dialplan function
>>         (https://wiki.asterisk.org/wiki/display/AST/Asterisk+10+Function_DENOISE),
>>         we can use libav for noise filtering on the muxed audio. I'm
>>         willing to contribute if one of the devs would help me out
>>         regarding implementation. Any comments?
>>
>>         -Regards
>>
>>
> 
> 
>     _________________________________________________________________________
>     Professional FreeSWITCH Consulting Services:
>     consulting at freeswitch.org <mailto:consulting at freeswitch.org>
>     http://www.freeswitchsolutions.com
> 
>     
>     
> 
>     Official FreeSWITCH Sites
>     http://www.freeswitch.org
>     http://wiki.freeswitch.org
>     http://www.cluecon.com
> 
>     FreeSWITCH-users mailing list
>     FreeSWITCH-users at lists.freeswitch.org
>     <mailto:FreeSWITCH-users at lists.freeswitch.org>
>     http://lists.freeswitch.org/mailman/listinfo/freeswitch-users
>     UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users
>     http://www.freeswitch.org <http://www.freeswitch.org/>
> 
> 
> 
> 
> -- 
> Anthony Minessale II
> 
> FreeSWITCH http://www.freeswitch.org/
> ClueCon http://www.cluecon.com/
> Twitter: http://twitter.com/FreeSWITCH_wire
> 
> AIM: anthm
> MSN:anthony_minessale at hotmail.com
> <mailto:MSN%3Aanthony_minessale at hotmail.com>
> GTALK/JABBER/PAYPAL:anthony.minessale at gmail.com
> <mailto:PAYPAL%3Aanthony.minessale at gmail.com>
> IRC: irc.freenode.net <http://irc.freenode.net/> #freeswitch
> 
> FreeSWITCH Developer Conference
> sip:888 at conference.freeswitch.org
> <mailto:sip%3A888 at conference.freeswitch.org>
> googletalk:conf+888 at conference.freeswitch.org
> <mailto:googletalk%3Aconf%2B888 at conference.freeswitch.org>
> pstn:+19193869900
> 
> _________________________________________________________________________
> Professional FreeSWITCH Consulting Services:
> consulting at freeswitch.org <mailto:consulting at freeswitch.org>
> http://www.freeswitchsolutions.com <http://www.freeswitchsolutions.com/>
> 
> 
>  </>
> 
> Official FreeSWITCH Sites
> http://www.freeswitch.org <http://www.freeswitch.org/>
> http://wiki.freeswitch.org <http://wiki.freeswitch.org/>
> http://www.cluecon.com <http://www.cluecon.com/>
> 
> FreeSWITCH-users mailing list
> FreeSWITCH-users at lists.freeswitch.org
> <mailto:FreeSWITCH-users at lists.freeswitch.org>
> http://lists.freeswitch.org/mailman/listinfo/freeswitch-users
> UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users
> http://www.freeswitch.org <http://www.freeswitch.org/>
> 
> 
> 
> 
> _________________________________________________________________________
> Professional FreeSWITCH Consulting Services:
> consulting at freeswitch.org
> http://www.freeswitchsolutions.com
> 
> 
> 
> 
> Official FreeSWITCH Sites
> http://www.freeswitch.org
> http://wiki.freeswitch.org
> http://www.cluecon.com
> 
> FreeSWITCH-users mailing list
> FreeSWITCH-users at lists.freeswitch.org
> http://lists.freeswitch.org/mailman/listinfo/freeswitch-users
> UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users
> http://www.freeswitch.org