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<DIV><FONT face=Arial size=2>Hi again,</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>The main problem we have is that we arent able to
get complete full duplex, that means.. that from time to time the sound seems to
vanish, we have an even worse effect when two people (each one from each site)
try to speak at the same time.. when this occurs the sound of one of the nodes
starts to decrease and being distorted. </FONT><FONT face=Arial size=2>When
the mics of one of the sites are muted, there's no problem with the sound coming
from the other. </FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>It is quite an annoying problem so we are not happy
with the current configuration.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>I'll go through all ur advices in order to get a
good audio levels, maybe that's the origin of the problem.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<BLOCKQUOTE dir=ltr
style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B>
<A title=C.D.Osland@rl.ac.uk href="mailto:C.D.Osland@rl.ac.uk">Osland, CD
(Chris)</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A title=natalia@cesga.es
href="mailto:natalia@cesga.es">'Natalia Costas Lago'</A> ; <A
title=ag-tech@mcs.anl.gov href="mailto:ag-tech@mcs.anl.gov">ag-tech</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Monday, December 20, 2004 1:15
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> RE: [AG-TECH] Fw: Test to get
better XAP settings</DIV>
<DIV><BR></DIV>
<DIV><SPAN class=410530112-20122004><FONT face=Arial color=#0000ff size=2>This
is written in a bit of a hurry and without the software in front of me but
basically ...</FONT></SPAN></DIV>
<DIV><SPAN class=410530112-20122004><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=410530112-20122004><FONT face=Arial color=#0000ff size=2>Mute
the feed to your speakers.</FONT></SPAN></DIV>
<DIV><SPAN class=410530112-20122004><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=410530112-20122004><FONT face=Arial color=#0000ff size=2>For
each mic {</FONT></SPAN></DIV>
<DIV><SPAN class=410530112-20122004><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=410530112-20122004> <FONT face=Arial
color=#0000ff size=2>set the coarse gain as necessary (usually the -50 or is
it -55 dB)</FONT></SPAN></DIV>
<DIV><SPAN class=410530112-20122004> <FONT face=Arial
color=#0000ff size=2>turn its meter on and adjust fine gain on the mic until
loudish</FONT></SPAN></DIV>
<DIV><SPAN class=410530112-20122004>
<FONT face=Arial color=#0000ff size=2>speaking gets it above the halfway (0
dB) mark while normal</FONT></SPAN></DIV>
<DIV><SPAN class=410530112-20122004>
<FONT face=Arial color=#0000ff size=2>speaking has it just
below</FONT></SPAN></DIV>
<DIV><SPAN class=410530112-20122004> <FONT face=Arial
color=#0000ff size=2>turn off AGC (in my opinion)</FONT></SPAN></DIV>
<DIV><SPAN class=410530112-20122004> <FONT face=Arial
color=#0000ff size=2>turn off gating if you're going to be in a small or
medium meeting</FONT></SPAN></DIV>
<DIV><SPAN class=410530112-20122004>
<FONT face=Arial color=#0000ff size=2>but arguably leave it on if you're in a
monster meeting</FONT></SPAN></DIV>
<DIV><SPAN class=410530112-20122004> <FONT face=Arial
color=#0000ff size=2>make sure echo cancellation is on and the reference is to
the</FONT></SPAN></DIV>
<DIV><SPAN class=410530112-20122004>
<FONT face=Arial color=#0000ff size=2>feed to your
speakers</FONT></SPAN></DIV>
<DIV><SPAN class=410530112-20122004><FONT face=Arial color=#0000ff
size=2>}</FONT></SPAN></DIV>
<DIV><SPAN class=410530112-20122004><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=410530112-20122004><FONT face=Arial color=#0000ff size=2>Now
go to the Outputs frame and turn on the meter of the feed to
the</FONT></SPAN></DIV>
<DIV><SPAN class=410530112-20122004><FONT face=Arial color=#0000ff
size=2>audio computer. Adjust its gain until it is like the mics' (just
below 0 dB</FONT></SPAN></DIV>
<DIV><SPAN class=410530112-20122004><FONT face=Arial color=#0000ff size=2>for
normal speech, just above for loud speaking).</FONT></SPAN></DIV>
<DIV><SPAN class=410530112-20122004><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=410530112-20122004><FONT face=Arial color=#0000ff size=2>Now
go to RAT and get it so that normal speaking is usually green
with</FONT></SPAN></DIV>
<DIV><SPAN class=410530112-20122004><FONT face=Arial color=#0000ff size=2>a
few yellows, and loud speaking just occasionally hits a red. Make
sure</FONT></SPAN></DIV>
<DIV><SPAN class=410530112-20122004><FONT face=Arial color=#0000ff size=2>RAT
silence suppression is OFF - let the Gentner do everything or
it</FONT></SPAN></DIV>
<DIV><SPAN class=410530112-20122004><FONT face=Arial color=#0000ff size=2>will
get confused and sulk.</FONT></SPAN></DIV>
<DIV><SPAN class=410530112-20122004><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=410530112-20122004><FONT face=Arial color=#0000ff size=2>Now
turn your speakers back on and, in RAT, get the incoming
level</FONT></SPAN></DIV>
<DIV><SPAN class=410530112-20122004><FONT face=Arial color=#0000ff size=2>from
a trusted source into the same region (green/yellow normal,
yellow/red</FONT></SPAN></DIV>
<DIV><SPAN class=410530112-20122004><FONT face=Arial color=#0000ff
size=2>occasionally).</FONT></SPAN></DIV>
<DIV><SPAN class=410530112-20122004><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=410530112-20122004><FONT face=Arial color=#0000ff size=2>Now
back to the Gentner and look at the Line input from the computer -
get</FONT></SPAN></DIV>
<DIV><SPAN class=410530112-20122004><FONT face=Arial color=#0000ff size=2>that
straddling 0 dB as above.</FONT></SPAN></DIV>
<DIV><SPAN class=410530112-20122004><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=410530112-20122004><FONT face=Arial color=#0000ff
size=2>Now go to the Outputs frame and get the same result on the
output(s)</FONT></SPAN></DIV>
<DIV><SPAN class=410530112-20122004><FONT face=Arial color=#0000ff
size=2>feeding the speakers.</FONT></SPAN></DIV>
<DIV><SPAN class=410530112-20122004><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=410530112-20122004><FONT face=Arial color=#0000ff
size=2>Finally go the the speakers (if active) or amps (if passive) and set
the sound</FONT></SPAN></DIV>
<DIV><SPAN class=410530112-20122004><FONT face=Arial color=#0000ff
size=2>level to a comfortable level; if you have a sound level meter 70 dBA
on</FONT></SPAN></DIV>
<DIV><SPAN class=410530112-20122004><FONT face=Arial color=#0000ff
size=2>A-weighting is conventional.</FONT></SPAN></DIV>
<DIV><SPAN class=410530112-20122004><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=410530112-20122004><FONT face=Arial color=#0000ff
size=2>Never be in a hurry to adjust audio when you first get into a venue;
the echo</FONT></SPAN></DIV>
<DIV><SPAN class=410530112-20122004><FONT face=Arial color=#0000ff
size=2>canceller takes time to settle (say 2 mins) so let things ride for that
amount</FONT></SPAN></DIV>
<DIV><SPAN class=410530112-20122004><FONT face=Arial color=#0000ff size=2>of
time while you get seating, lighting and camera angles sorted out,
THEN</FONT></SPAN></DIV>
<DIV><SPAN class=410530112-20122004><FONT face=Arial color=#0000ff size=2>fix
the audio if there's still a problem.</FONT></SPAN></DIV>
<DIV><SPAN class=410530112-20122004><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=410530112-20122004><FONT face=Arial color=#0000ff
size=2>Cheers</FONT></SPAN></DIV>
<DIV><SPAN class=410530112-20122004><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=410530112-20122004><FONT face=Arial color=#0000ff
size=2>Chris</FONT></SPAN></DIV>
<DIV> </DIV>
<P><FONT face=Arial
size=2>____________________________________________________________________</FONT>
<BR><I><FONT face="Comic Sans MS" color=#ff0000 size=4>Chris
Osland</FONT><B></B></I><B></B><B></B><B><FONT face=Arial size=2></FONT></B>
<FONT face=Arial
size=2> </FONT><I>
<FONT face=Arial size=2>Office tel:</FONT></I><FONT face=Arial size=2> +44 (0)
1235 446565</FONT> <BR><FONT face=Arial size=2>Digital Media and Access
Grid </FONT><I> <FONT
face=Arial size=2> Medialab tel:</FONT></I><FONT face=Arial size=2> +44 (0)
1235 446459</FONT> <BR><FONT face=Arial size=2>BIT
Department </FONT><I></I><I>
<FONT face=Arial size=2>Access Grid room tel</FONT><FONT face=Arial
size=2>:</FONT></I><FONT face=Arial size=2> +44 (0) 1235 445666</FONT>
<BR><I><FONT face=Arial size=2>e-mail:</FONT></I><FONT face=Arial
size=2>
C.D.Osland@rl.ac.uk </FONT><I>
<FONT face=Arial size=2>Fax:</FONT></I><FONT face=Arial size=2> +44 (0) 1235
445597</FONT> <BR><B><FONT face=Arial size=2>CCLRC Rutherford Appleton
Laboratory</FONT></B><FONT face=Arial size=2> (Bldg. R18)</FONT> <BR><FONT
face=Arial size=2>Chilton, DIDCOT, Oxon OX11 0QX, UK</FONT> <BR><I><FONT
face=Arial size=1>[The contents of this email are confidential and are for the
use of the intended recipient only.<BR>If you are not the intended recipient
do not take any action on it or show it to anyone else,<BR>but return this
email to the sender and delete your copy of it.]<BR></FONT><BR></I></P>
<BLOCKQUOTE dir=ltr
style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #0000ff 2px solid; MARGIN-RIGHT: 0px">
<DIV class=OutlookMessageHeader dir=ltr align=left><FONT face=Tahoma
size=2>-----Original Message-----<BR><B>From:</B> owner-ag-tech@mcs.anl.gov
[mailto:owner-ag-tech@mcs.anl.gov]<B>On Behalf Of </B>Natalia Costas
Lago<BR><B>Sent:</B> 20 December 2004 10:25<BR><B>To:</B>
ag-tech<BR><B>Subject:</B> [AG-TECH] Fw: Test to get better XAP
settings<BR><BR></FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>I had to resend this email.. it doesnt reach
the list!! Maybe with this second try?</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV style="FONT: 10pt arial">----- Original Message -----
<DIV style="BACKGROUND: #e4e4e4; font-color: black"><B>From:</B> <A
title=natalia@cesga.es href="mailto:natalia@cesga.es">Natalia Costas
Lago</A> </DIV>
<DIV><B>To:</B> <A title=ag-tech@mcs.anl.gov
href="mailto:ag-tech@mcs.anl.gov">ag-tech</A> </DIV>
<DIV><B>Sent:</B> Monday, December 20, 2004 11:04 AM</DIV>
<DIV><B>Subject:</B> Test to get better XAP settings</DIV></DIV>
<DIV><BR></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Hii..</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>I need someone to help me to improve my XAP
settings for a better audio quality.. anyone out there? Or just to help me..
I can try to guess the better ones...</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Thanx in advance,</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Kind regards,</FONT></DIV>
<DIV><FONT face=Arial size=2>Natalia.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>-----------------------------------<BR>Natalia
Costas Lago<BR>email: <A
href="mailto:natalia@cesga.es">natalia@cesga.es</A><BR> <BR>Centro de
Supercomputacion de Galicia (CESGA)<BR>Avenida de Vigo, s/n Campus Sur
<BR>15706 Santiago de Compostela - SPAIN<BR>Tel: +34 981
56 98 10 <BR>Fax: +34 981 59 46 16<BR><A
href="http://www.cesga.es/">http://www.cesga.es/</A></FONT></DIV></BLOCKQUOTE></BLOCKQUOTE></BODY></HTML>