Monday, December 20, 2010
Weak current College】 【feedback suppressor to problems and troubleshooting.
Feedback suppressor: feedback suppressor's main function is to prevent the system produces a transfusion, protect the speaker device, following that adjust the electronic divider need to pay attention to some problems and troubleshooting:
1, in the use of microphone for feedback point suppression, it is best to find a few frequently used the microphone, but when you want to continue to transform the location of the handset, you can also place the point when the adjustment of background music or microphone to speak some words, which can make the sound more active, more precise and fast find acoustic feedback frequencies.
2. the system if you have to press the device, also note the compressor for pass-through, and adjust the completed and then restored. Whereas the system of other audio processing equipment such as a mixer, equalizer, Exciter, divider, amplifier, etc, to adjust to normal working condition.
3. takes note of the detection of a system in the feedback suppressor on the music signal and microphone feedback signal detection method of resolution is: turn off all the microphone, the feedback suppressor thread in any of the music signal channel, it is best to put a disco music, constantly increasing volume of this channel, if it is found that the feedback suppressor started working and serious impact on the sound quality, it proves that this feedback suppressor is not perfectly.
4, there is one thing to note: If you have to readjust the feedback suppressor, the on-site performance, do not press the Reset button, as this will give you a previously set all parameters in the clear, the feedback suppressor into just the factory's original state, it is very dangerous, the system will probably appear strong screech, serious but also equipment.
5. some of the feedback suppressor with automatic and manual work mode, if you think you have a perfect adjustment of the system does not occur with acoustic feedback, then you can leave feedback suppressor on manual or lock mode, so that both preserves the device in the original parameters, not because the device error detection and false starts and change the parameters have been adjusted well.
6, there's one more thing: feedback suppressor is impossible both inhibit acoustic feedback and adjusting the sound field, adjust the sound field need to have a dedicated simulation multi-segment room equalizer or professional digital parametric equalizer. Feedback suppressor failure examples:
Previously a lot of sound Division complaining about the feedback suppressor sound but not after, is actually the above issues. Of course we do not naive to think that with several pieces of feedback suppressor can 100% avoid transfusion, also don't expect current feedback suppressor can 100% tell what is what is microphone music signal feedback sound, the truth is good music signal often give feedback suppressor suppression, and harmful microphone feedback sound but not very good control. There are also some audio system acoustic feedback point too much feedback suppressor per channel 10 several filter is simply not enough. So for feedback suppressor use and evaluation or benevolent see benevolence Moses.
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