Various websites , including Extron mention 15ft, 45ft and 75ft as the possible limits of HDMI cable length, based on quality of cable, amount of data sent and type (power specs) of the graphic card of the device sending the signal.
Category Archives: Facilities
Microphone Feedback
Aside from the cell phone-caused speaker interference, there are additional sources of noise/interference in an audio system, including mic feedback. Here are some more resources that describe ways to reduce feedback:
http://toonz.ca/bose/wiki/index.php?title=Microphone_Feedback
http://www.google.com/search?q=mic+feedback
http://en.wikipedia.org/wiki/Audio_feedback#Directivity
http://www.mediacollege.com/audio/howto/feedback.html
http://www.audiocourses.com/article113.html
http://proavmagazine.com/acoustics/designing-a-mix-minus-distributed-sound-system.aspx
http://en.wikipedia.org/wiki/Microphone#Microphone_polar_patterns
http://www.ccisolutions.com/worshiptools/learn-about-microphone-feedback
http://www.shure.com/idc/groups/public/documents/webcontent/us_pro_mics_for_music_sound_ea.pdf
http://www.shurenotes.com/issue23/article.html
http://www.shurenotes.com/issue27/article.html
http://www.dt4u.com/dtsystems/feedback.php
http://boards.straightdope.com/sdmb/archive/index.php/t-34057.html
http://www.behringer.com/EN/Products/FBQ2496.aspx
http://www.mp3backingtrax.com/article56.htm
Good Resources for Planning Video Projection
Projector Central to help you pick a projector: http://www.projectorcentral.com/
Calculate screen size and projector distance based on seating arrangement and aspect ration: http://myhometheater.homestead.com/viewingdistancecalculator.html
Figure out aspect ratios: http://en.wikipedia.org/wiki/Aspect_ratio_(image)
Mounting computers and monitors
Here’s a nice computer (aka CPU) mount:
http://www.chiefmfg.com/productdetail.aspx?AccessoryID=1021
Securing laptops to a desk or a podium
Some options:
https://www.smartdesks.com/laptop-labs.asp
https://www.smartdesks.com/mfi-lectern-podium.asp
https://www.smartdesks.com/PDF/SPECS-MPLEX/MFP-302642-LKF.pdf
Freedom podium/lectern with Freedom link cart (actually the cart may be more useful for us than the podium!):
http://www.youtube.com/watch?v=K1L5GS29mB8
For example we could lock a laptop to podiums where there isn’t enough space to attach a swing arm and desktop mount:
Kensington Laptop Locking Station ($80).
Probably the best would be a monitor swing arm (FWD110B Chief monitor wall arm mount,$80) with a Mac Mini mount / bracket such as the MacCuff, $50.