Monday, November 29, 2010

Acoustic feedback suppressor microphone in a multi-application support.

Most of the sound engineer in the use of acoustic feedback suppressor, have such an experience: when using a single microphone, microphone, use occurred whistling sound feedback suppressor (such as insert) can be more ideal to squealing voice Bate. However, when using multiple microphones, you receive the screech effect is often less than ideal, often appears only some or even single microphone inhibition effect is good, the rest of the microphone in large volume, squealing voice has not been suppressed. So, the problem does occur where? the following author on the subject to talk about the causes of and solutions. We all know that, because of the structure and characteristics of the microphone, the microphone in different brands, impedance, frequency, nature and sensitivity of indicators is not consistent, even if the same brand of microphones in these targets also exist in different degrees of difference, plus the various branches of the microphone in the actual use of the use and placement of different factors, such as the objective branch of the microphone feedback whistling frequency is not in the same volume. If we use conventional method for FSK, often first occurred screech of the microphone will trigger a suppressor for point by point shift, the remaining number is not yet happening screech of the receiver has not been effectively shift. When a large, the microphone will still occur in Whistler, the suppressor is powerless. If we use multiple acoustic feedback suppressor use the Insert method, respectively, for each branch of the microphone by point shift, then these many issues can be resolved, this results in the improvement of the equipment cost. If you hold a comprehensive dance party, this configuration is in the installation and commissioning, second on the expenditure of time and is also in cost is not practical. In fact, the solution is very simple, as long as we use the correct debug methodology with a feedback suppressor can be more ideal frequency suppression effect.

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