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<blockquote data-quote="Ivan Beaver" data-source="post: 140629" data-attributes="member: 30">Re: Infocomm???But a simple understand of things like wavelength and phase can help reduce the possibilities of feedback.A system that has a smooth phase response will have less tendency to feedback, and it will also sound clearer-so less gain is needed-so again less of a chance for feedback.Something most people don&#039;t get is that wavelenght has SIZE and it takes SIZE to control it.Speakers with small horns will NOT &quot;keep the energy off the wall or direct the sound where you want it&quot;.&nbsp; They will simply spray the sound everywhere-NO MATTER what the specs say.&nbsp; Usually the specs on pattern size is only for the top octave or two.&nbsp; Not down in the vocal range-where most feedback occurs.I bet if you asked most audio professionals how large 100 or 1KHz is-they would not even have a clue or a wild guess.So they would not have any idea how large of a horn it takes to control those wavelengths.The interesting thing I found out this last week is the LARGE number of people who have no idea what a line array is-what it looks like (other than a vertical stack) and even less what the basic principals are.It seems as if you are considered a &quot;professional&quot; if you can hook up the gear and get sound to come out. And what is even SCARIER is the number of &quot;designers&quot; who don&#039;t understand the basic principals.</blockquote>

[QUOTE="Ivan Beaver, post: 140629, member: 30"] Re: Infocomm??? But a simple understand of things like wavelength and phase can help reduce the possibilities of feedback. A system that has a smooth phase response will have less tendency to feedback, and it will also sound clearer-so less gain is needed-so again less of a chance for feedback. Something most people don't get is that wavelenght has SIZE and it takes SIZE to control it. Speakers with small horns will NOT "keep the energy off the wall or direct the sound where you want it". They will simply spray the sound everywhere-NO MATTER what the specs say. Usually the specs on pattern size is only for the top octave or two. Not down in the vocal range-where most feedback occurs. I bet if you asked most audio professionals how large 100 or 1KHz is-they would not even have a clue or a wild guess. So they would not have any idea how large of a horn it takes to control those wavelengths. The interesting thing I found out this last week is the LARGE number of people who have no idea what a line array is-what it looks like (other than a vertical stack) and even less what the basic principals are. It seems as if you are considered a "professional" if you can hook up the gear and get sound to come out. And what is even SCARIER is the number of "designers" who don't understand the basic principals. [/QUOTE]

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