Well I assume that is what it is. Scenario musician/s in a pub, ie non-ideal environment. , so hard wall surfaces, using a pair of speakers on tripod stands so about head height. Fine at low sound level, but sometime into the set they turn the level up. I'm guessing, that at some frequency about 2KHz, the room starts ringing, not microphony/ howl-round as its quite stable in level, whenever that pitch is being emitted. What is this effect called ? Again assuming this is associated with the separation between the wall in front of the speakers reflecting back to the wall behind the speakers, is there a way of calculating what this frequeny would be for a given room dimension and relative speaker position. And would it be possible to make up some device to ping short but high level bursts of various frequencies, in that range, via the PA and speakers , during sound-check, to determine what this frequency is and then ideally knotch-out but more likely attenuate using the graphic on the mixer ?
- posted
15 years ago