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I have had some experience with ceiling microphones in various
Polycom conference rooms, and have not really liked the results. When all
is working as desired, the quality and clarity is very nice, a few mics can
cover a 25 person room. The biggest thing that you have to watch out for
is the HVAC system in the room. With the units I have used, whenever
there is a conference in the room, the air exchangers need to be turned off so
that it does not sound as though there is a tornado in the room. Then,
all of the participants complain that they are getting hot and the whole thing
starts over again. As for what to do about your issue with not wanting
cords all over the room, I wish you luck. Derek Vine Communication Network Specialist The University of South Dakota 414 East Clark Street Vermillion, SD 57069 Office - (605) 677-5042 Cell - (605) 677-8215 ceddn@xxxxxxx From:
owner-ag-tech@xxxxxxxxxxx [mailto:owner-ag-tech@xxxxxxxxxxx] On Behalf Of John
I Quebedeaux Jr Jeremy, My 2 cents from experience is that wireless mics are an
extreme pain to maintain due to battery consumption and also to control the
appropriate use and placement and audio... balance? If at all possible, wire
them for lower maint. particularly if they receive a lot of use. Wireless is
much more expensive as well, but they are convenient (it would seem) until you
begin dealing with batteries. Also, if they're wireless and the mics are
not in a fixed point then you have audio issues to deal with with microphone
placement- including the famous picking up a wireless mic and holding it like a
"StarTrek" communicator... <shudder>. Perhaps it's just me, but
i like it if my users can NOT physically move the microphones that I've so
carefully balanced for the acoustics in the room they are in. I feel your pain on the wires though and in particular the
microphone situation. Newer rooms here they don't want to have
"fixed" mics on the tables and the tables themselves aren't fixed
either (i.e. can change room config in a few minutes). I know that Jason Bell
had demonstrated at SC Global his success at incorporating ceiling microphones
into his room infrastructure. Perhaps some audio folks can comment on
microphone placement and installation a bit for new installations. -John Q. -- John I. Quebedeaux,
Jr.; Louisiana State University Computer Manager LBRN; 131
Life Sciences Bldg. e-mail: johnq@xxxxxxx; web: http://lbrn.lsu.edu phone: 225-578-0062 / fax:
225-578-2597
On Feb 1, 2007, at 8:59 AM, Jeremy Mann wrote:
I've been assigned to design and install AG systems in
several existing conference rooms for different departments here on
campus. One design they all agree on, is the lack of or sparse use
of cables. The one portable AG node I built several years ago is not
pleasing to the eye at all because of all the cables. I'm interested to hear if anyone else has built or is using
wireless table top microphones, or
a combination of wireless microphones with built-in echo cancellation. Any brand recommendations? -- Jeremy Mann University of Texas Health Science Center Bioinformatics Core Facility Phone: (210) 567-2672 |