Hi Matthew, One point to remember is that if you are picking up audio from a 3 metre radius, that you will also pick up ALL extraneous noise within that range, including room acoustics, air-con, projectors, other possibly unwanted voices etc etc. So the audio quality is bound to diminish. It's worth checking the setup to see if it's acceptable before going "live" and getting complaints. If possible ask to try out the equipment. If the company you're purchasing from is any good they will understand and may even help with a solution.
(that's my tuppenceworth) Regards, Paul Kuchar AGSC, Collaborative Working Developments Research Computing Services University of Manchester, M13 9PL, United Kingdom t: +44(0)161-275 0668 f: +44(0)161-275 0637 / 6040 e: paul.kuc...@manchester.ac.uk<mailto:paul.kuc...@manchester.ac.uk> w: http://www.rcs.manchester.ac.uk/about/people/kuchar http://www.manchester.ac.uk<http://www.manchester.ac.uk/> http://www.rcs.manchester.ac.uk<http://www.rcs.manchester.ac.uk/> _____ From: owner-ag-t...@mcs.anl.gov [mailto:owner-ag-t...@mcs.anl.gov] On Behalf Of Jason Bell Sent: 13 August 2008 00:03 To: Matthew Leszczenski; Jimmy Miklavcic; ag-t...@mcs.anl.gov Subject: RE: [AG-TECH] Equiptment ideas? G'day Matthew Can I suggest you have a look at the chat150, as I have used it within the range of 3 meters and I find it works reasonably well. Obviously you will have to adjust the mixer settings to increase the gain, but I think it might be acceptable. The other benefit of this device is that it has 3 microphones for pickup, which assists with picking up audio from different directions. Obviously an open area is more difficult and that having the mic on a table which allows the audio to absorbed and picked up better will assist. Anyway, I guess it cannot hurt to try one and if it doesn't work, use it for another application. My 5 cents worth. Cheers, Jason. From: Matthew Leszczenski [mailto:mxl9...@rit.edu] Sent: Tuesday, 12 August 2008 5:59 AM To: 'Jimmy Miklavcic'; ag-t...@mcs.anl.gov Subject: RE: [AG-TECH] Equiptment ideas? I have also considered USB based devices, such as the iChat, and the Duet. They do not have a very good range for microphone pickup from my experience with them, they are good for very close range (~ 4 ft, after that it doesn't pick up anything very well). Unless do you know of a USB microphone that has a better range, and gain, so it can pickup sound decently in an open area from more then 6-8 ft? Matthew Leszczenski - Technical Assistant and Eagle Scout - Undergraduate NSSA Major @ RIT - Collaboration Technology Developer @ RIT Research Computing department From: Jimmy Miklavcic [mailto:jimmy.miklav...@utah.edu] Sent: Monday, August 11, 2008 3:32 PM To: Matthew Leszczenski; ag-t...@mcs.anl.gov Subject: RE: [AG-TECH] Equiptment ideas? Did you consider the USB mics, Duet PCS or ClearOne iChat series? Each mic does its own EC. Jimmy -- Jimmy Miklavcic Multimedia Specialist jimmy.miklav...@utah.edu<mailto:jimmy.miklav...@utah.edu> UNIVERSITY OF UTAH CTR FOR HIGH PERFORM COMPUTING 155 SOUTH 1452 EAST RM 405 SALT LAKE CITY, UT 84112-0190 Office: 801.585.9335 Fax: 801.585.5366 http://www.anotherlanguage.org<http://www.anotherlanguage.org/> _____ From: owner-ag-t...@mcs.anl.gov [mailto:owner-ag-t...@mcs.anl.gov] On Behalf Of Matthew Leszczenski Sent: Monday, August 11, 2008 12:20 PM To: ag-t...@mcs.anl.gov Subject: [AG-TECH] Equiptment ideas? Hello all, One of my current projects is a public AG kiosk-like setup, in which people will be able to walk up to the node, choose a stream and start to talk directly with that stream. The area is about a 12' X 12' square area, with drop-tile ceiling, it will consist of 1x HD camera, 1x DV camera, 2x 52" HD LCD TV's, 1x high quality microphone, some sort of directional speakers, and an echo cancellation system. It seems that I would only need one microphone input for this project. However I have mostly worked with the ClearOne XAP400, which is a dual line-in echo cancellation system, and the XAP does not seem to come in a single line-in version. Is there some other echo cancellation unit that people would suggest for a setup like this? Or have I missed a single line-in version of the XAP? Also any other suggestions for the node would be nice to hear, in case others have ideas that haven't been thought of, or others are thinking of building a node such like this. As always all help is appreciated! Matthew Leszczenski - Technical Assistant and Eagle Scout - Undergraduate NSSA Major @ RIT - Collaboration Technology Developer @ RIT Research Computing department
