[Freeswitch-users] Buzzing when people speak in conference

[Chris Burns]

Try turning off comfort noise completely in the conference profile? My 650s 
sound great in conference w/ PCMU and G722

On April 1, 2009 03:10:35 pm Giovanni Maruzzelli wrote:
> To make a long story short, a ground loop is when an electric circuit
> is made between different audio device that are connected to the same
> electric power grid with badly grounded connections.
>
> This is an electrical problem generating noise, nothing to do with
> software.
>
> To test if this is the origin of your problem, try to use the devices
> unplugged from the electrical grid and check if the noise still there
>
> Sincerely,
>
> Giovanni Maruzzelli
> =========================================
> www.celliax.org
> via Pierlombardo 9, 20135 Milano
> Italy
> gmaruzz at celliax dot org
> Cell : +39-347-2665618
> Fax : +39-02-87390039
>
> 2009/4/1 Stromin Normin <stormin.normin at hotmail.co.uk>:
> > Cheers for the replies.  I'm not sure if I'm replying properly but here
> > goes.
> >
> > I'm using Polycom 650 phones.
> >
> > I'm not really sure what a 60hz ground loop is so will need
> > clarification, sorry I'm new to this.  The phones are all on the same LAN
> > and the conferencing is done on internal calls.
> >
> > Cheers
> >
> > ________________________________
> > From: stormin.normin at hotmail.co.uk
> > To: freeswitch-users at lists.freeswitch.org
> > Date: Wed, 1 Apr 2009 22:09:03 +0100
> > Subject: [Freeswitch-users] Buzzing when people speak in conference
> >
> > Hi,
> >
> > I've been asked to do some testing on Freeswitch by work, we currently
> > use Asterisk.  I'm quite new to telephony so please go easy.
> >
> > I have FS setup on a windows box and at the moment I'm testing internal
> > calls only, when I transfer calls or call extensions everything sounds
> > great.  The problem occurrs when I setup conferencing, people can log in
> > ok and we can talk, the trouble is as people start to talk a buzzing
> > sound is heard in the background, once the talking stops the buzzing
> > stops.  If the person goes on mute there is no buzzing.
> >
> > Hopefully this is enough info cheers for any help.
> >
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