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ChurchVideo / Video in Worship... Blogs, Resources, Guides and Tips for anyone using video, specificly for using video and technology in Churches and similar events.
We have 2 blog streams: Tips and Guides, as well as other resources, links & downloads
Welcome to Video in Worship // ChurchVideo
Lots of free resources
This site is still under construction
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Latest Guides

Video Projector Calibration
Setting up a video projector isn't as easy as you first may think. Leaving the settings on the default values may not give you the best image possible. by using Test Patterns along with the colour/brightness/contrast and other settings on your... Read This Article
Scan Converters
If you'd like to know about Scan Converters (or Down Converters) then take a look at our scan converter page. This talks about converting a computer signal in to composite video and how it can be mixed with other composite signals Read This Article
Mixing Composite and Computer Video Signals
Many times you want to mix a computer signal (eg a presentation or song words) with a set of video cameras and/or dvd players. Video cameras etc, generally use Composite video (the little phono connector) and a computer will use higher resolution... Read This Article
High Definition Church
Throughout 2006 High Definition has grown, and it's set to grow even faster in 2007/8. at the begining of 2006 you could by a High Definition TV, but there was noone broadcasting High Definition programs, by the end of 2006, you could purcase High... Read This Article
Matrox DualHead2Go - in use for video playback
We have used the Martox DualHead2go device at a couple of youth event in Reading - What this provided was a cheap and simple way to have a 16 by 6 foot screen! -that’s pretty wide. The reason behind all this is to provide a far cheaper alternative... Read This Article
Video Resolution Chart
This is a table of the popular video formats and their resolution   Read This Article
Reducing Feedback
What is Feedback? Feedback is the screeching/squealing/hooting sound heard when there is an accidental loop in the PA system. That is when the sound from a microphone is amplified and fed to the speakers and then picked up again by the microphone,... Read This Article
Guides - More in-depth Information


Reducing Feedback PDF Print E-mail
Written by Andrew   
Friday, 15 February 2008 18:54

What is Feedback?

Feedback is the screeching/squealing/hooting sound heard when there is an accidental loop in the PA system. That is when the sound from a microphone is amplified and fed to the speakers and then picked up again by the microphone, this sound then carries on round and round resulting in the nasty noise. The feedback frequency depends on a number of factors such as: the resonant frequency of the room, distance of microphone and speakers, frequency response of the microphone, characteristics of musical instruments.

To reduce or eliminate feedback this loop needs to be broken, here are a few ways of doing that.

 

Last Updated ( Monday, 18 August 2008 12:31 )
Read more... [Reducing Feedback]
 


 

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