|
|
| Lose the
Feedback |
| By Kent Margraves,
Sennheiser |
Improving Gain-Before-Feedback in Worship
*This discussion focuses on the processing and optimization of miked sources on the worship stage, using the
equalization available in the PA console channels strips or outboard equalization inserted into these channels.
It does not discuss overall system processing or "tuning" and assumes appropriate system installation and
optimization.*
Have you ever experienced a case of microphones squealing feedback before they are loud enough in your PA mix?
Even with great mics and a wise layout, sometimes you could still use more GBF (gain-before-feedback). We'll
take choir miking as our example for discussion. We usually mic choirs with several cardioid condenser
microphones, right?
The feedback that occurs here is caused by the microphone(s) hearing itself being amplified in the PA system.
The microphone picks up the source in front of it (good) and also picks up itself coming out of the PA (bad).
So, since we wish to have the mics "hear" less of themselves from the loudspeakers, several ideas seem fairly
straightforward for increasing GBF:
Turn it down Use fewer microphones Use directional mics aimed at the choir (and away from the loudspeakers) Move the mics closer to the choir (and further from the loudspeakers) Use directional loudspeakers, placed and aimed away from the mics Use parametric equalization
For more detailed information, click
|
|
|
 |
|
| Kent Margraves, Sennheiser |
|
|
 |
|
|
 |
|
| Wes Hartley, Lake Pointe Church |
|
|
|
|
|
| Kent Margraves, Sennheiser |
|
|
|
 |
|
| Damon Faulk, Lake Pointe Church |
|
|
|
|
|
| Kent Margraves, Sennheiser |
|
|
|
|
|
|
|
|
| Kent Margraves, Sennheiser |
|
|
|
|
|
| Kent Margraves, Sennheiser |
|
|
|
|
|
|
|
|
| Sennheiser Home |
|
| Dealer Locator |
|
| Trade-In Rebate Offer |
|
| Modular Podium Microphones |
|
| Wireless Microphones |
|
| Wired Microphones |
|
| Assistive Listening |
|
| Wireless Monitoring Systems |
|
| What does the ruling
mean to you? |
| and a Sennheiser RF specialist will call you with answers. |
| We
understand that the anticipation of the changes in the US Spectrum has caused a great deal of anxiety for many.
With the recent ruling announced by the FCC we have a much clearer outlook of the future landscape for wireless
microphones. In order to help understand what these changes mean to each user individually, Sennheiser offers
personal consultation. Users can to receive a phone call from one of our RF specialists. |
|
|
| Find
Wireless Freqencies: |
| Knowing
which frequencies are available in a geographic area is key to successful wireless operations. Click below for our
convenient frequency finding tool.
|
|
|
|
|
| Worship Technology Events |
| Click to
view events, dates and locations. |
|
|
Tips and Tricks
for Houses of Worship: |
Learn how Sennheiser equipment can help you achieve flawless live, recorded and
broadcast services, day after day.
|
|
|
| Learn more about our ew wireless Microphones |
| Click to watch video |
|
|
| Questions? Comments? Or want to provide a tip? |
| Send us an email. Just click |
|
|
| What worship ministries are saying about Sennheiser... |
| "I also would like to thank you and Sennheiser for not only your
assistance with the whole TVBD fiasco, but your support of the H.O.W. market in general. It is truly
remarkable these days to have a manufacturer of the size of Sennheiser that allows its personnel to
interact with the end-user not only through outlets such as CSC, but the rapid personal response to
crazy tech guys like me! It is why I can recommend using your products so readily." |
|
Jay Ballard, Director of Technical Ministries, First Baptist Church of Plant City, Florida
|
|
|
