- NOM is deactivated. - Only one microphone unmuted. Each time I check "Enable Acoustic Echo Canceller (AEC)" or set Non Linear Processing (NLP) to "Soft" (instead of "Off") I get this effect. Cant speak on my node at the same time a PIG is playing an audio file.
Mi question is, has someone done the same test? I cant really appreciate the problem that much just with normal speech. It must be a continuous sound (playing music por example). Maybe this is normal? ----- Original Message ----- From: "Natalia Costas Lago" <nata...@cesga.es> To: <pei...@maine.edu> Cc: "ag-tech" <ag-t...@mcs.anl.gov> Sent: Tuesday, December 28, 2004 9:34 AM Subject: Re: Fw: [AG-TECH] XAP setup > > I've read about mics gain adjustment, but i am unsure about what is best > about gain from "Rx from Codec" input (it is better to send the loudest > level from PC audio, so I will have a strong signal on the XAP input? or > that doesnt matter?) > > I'll think about NOM parameter, that is something i missed to think about. > > ----- Original Message ----- > From: <pei...@maine.edu> > To: "Natalia Costas Lago" <nata...@cesga.es> > Sent: Monday, December 27, 2004 9:47 PM > Subject: Re: Fw: [AG-TECH] XAP setup > > >> Natalia, >> The XAPs (I use XAP800's in other projects) are capable of full >> duplex with AEC. >> You might start by checking what your AEC reference for the >> microphones is comprised of. It should be made up of the lines >> sources coming into the room (remote sites, locally reinforced line >> inputs like VCRs). I'm wondering if you may have the microphones >> themselves included. >> >> You should also check your gain staging (using the meters) so that >> the levels are appropriate at every input and output stage. >> >> Might you have NOM enabled on the outputs to remote sites? >> This might be altering output levels as the number of mics changes. >> >> Have you tried contacting ClearOne support? >> >> >> On 27 Dec 2004 at 20:29, Natalia Costas Lago wrote: >> >>> >>> I think we have identified when the problem occurs,... when setting >>> the AEC or NLP (not neccesarily AEC selected) the full duplex >>> capabilities are lost (i play a sound with a PIG and talk at the same >>> time... my voice is completely atenuated!). >>> >>> Is this all I can get from the XAP?. There's no way to get _complete_ >>> full duplex and AEC free?. Our users have noticed the effect (when >>> people talk at the same time one is atenuated). >>> >>> Any hint about this? Can any site have a test with us? >>> >>> ----- Original Message ----- >>> From: "Natalia Costas Lago" <nata...@cesga.es> >>> To: <ag-t...@mcs.anl.gov> >>> Sent: Monday, December 27, 2004 7:32 PM >>> Subject: [AG-TECH] XAP setup >>> >>> >>> > >>> > >>> > >>> > Hi, >>> > >>> > I was wondering wether someone out there could help me to solve some >>> > issues regarding the XAP. It would be good if he/she had the VNC on >>> > the control PC, so i can have a look at the audio levels on the >>> > different stages. I think part of the current problem might be >>> > missconfigured audio levels (i know about theory in mics level.. but >>> > i am unsure about the input audio theory). >>> > >>> > We've been working hard on these issues and we are still having >>> > trouble. I would greatly appreciate some more help and patience from >>> > AG community... >>> > >>> > Kind regards and thanx in advance, >>> > Natalia. >>> > >>> > >>> > ----------------------------------- >>> > Natalia Costas Lago >>> > mailto: nata...@cesga.es >>> > >>> > Centro de Supercomputacion de Galicia (CESGA) >>> > Avenida de Vigo, s/n Campus Sur >>> > 15705 Santiago de Compostela - SPAIN >>> > Tel: +34 981 56 98 10 >>> > Fax: +34 981 59 46 16 >>> > http://www.cesga.es/ >>> > >>> > >>> > >>> > >>> >> >> >> Garry Peirce pei...@maine.edu 1-207-581-3539 >> ============================================ >> == Network Analyst >> == UNET Technology Services, Network Operations >> == University of Maine System >> ============================================ >> >> >> >> > >
