Feedback - Emerson WM340 User Manual

FEEDBACK

Feedback happens when a microphone is placed close to a speaker. The amplified sound waves
coming from the speaker enter the microphone which sends that sound back for more amplification.
Amplification rises quickly and creates annoying howl or screach.
Feedback is caused by the following conditions:
• Placing microphone too close to the speaker(s).
• Having too many open and active microphones.
• High-frequency tone controls adjusted too high.
• Performing in environments with high ratios of hard and reflective room surfaces.
Prevent feedback by:
• Requesting the singer or speaker project their voice louder into the microphone allowing for a lower
master volume.
• Reduce the distance from microphone and lips. Each time this distance is halved, the sound system
output will increase approximately 6dB, mostly in the low-frequency range.
• Reduce the number of open microphones.
• Move the speaker(s) closer to the listeners.
• Use an equalizer/feedback reducer to cut the offending frequency bands.
Important: Every wireless microphone installation is a unique situation and can present a variety of
problems. Never attempt a live performance without first testing entire system in the performing area.
If changes are made, retest system again. Audiences are always more receptive if the show starts on
time without technical difficulties.
6365 53rd Street North Suite B Pinellas Park, FL 33781 USA
http://www.emersonkaraoke.com
1-800-800-8466
EMERSON AND THE G-CLEF LOGO ARE REGISTERED TRADEMARKS
OF EMERSON RADIO CORP .,
PARSIPPANY, NEW JERSEY, U.S.A.,
USED UNDER LICENSE
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