[AG-TECH] RAT : "Monodirectional" sound ?

Michael Miller mimiller at ncsa.uiuc.edu
Fri Mar 27 09:30:29 CDT 2009

Also, check the echo cancellation checkbox in RAT options.  In the past when I had this inadvertently checked, RAT used half-duplex behavior to cancel echo.  Best to use an outboard device like an XAP or echo-cancelling mic.

hope this helps,


"If you're clear in your vision and trust the people in your team with clear objectives, they will invariably do their best to achieve everything desired, and usually deliver everything you could have hoped for and even more." -Paul Debevec

----- Original Message -----
From: "Douglas Kosovic" <douglask at itee.uq.edu.au>
To: "Thibault Daoulas" <thibault.daoulas at canterbury.ac.nz>
Cc: ag-tech at mcs.anl.gov
Sent: Thursday, March 26, 2009 11:34:21 PM GMT -06:00 US/Canada Central
Subject: Re: [AG-TECH] RAT : "Monodirectional" sound ?


In the past it was sometimes due to the soundcard being only half-duplex
instead of full-duplex.


> -----Original Message-----
> From: ag-tech-bounces at lists.mcs.anl.gov [mailto:ag-tech-
> bounces at lists.mcs.anl.gov] On Behalf Of Thibault Daoulas
> Sent: Friday, 27 March 2009 11:34 AM
> To: ag-tech at mcs.anl.gov
> Subject: [AG-TECH] RAT : "Monodimensional" sound ?
> Hello everybody,
> I have been looking up into the archives, but couldn't find anything
> about it :
> Yesterday I had a meeting precisely to test a few things about the
> media tools, and it happened that only one person at a time could
> transmit sound, and like a walkie-talkie we had to tick/untick
> "talk" in the RAT interface to be almost able to discuss.
> Has anyone experienced it before ?
> Thanks,
> Thibault.

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