Room Acoustics Forum by Rives Audio

RE: optimum room dimension ratios

124.177.135.18

In Reply to: RE: optimum room dimension ratios posted by KlausR. on May 31, 2008 at 11:56:21

"The only place where you excite ALL room modes fully is in a corner"

Not true. Corners are the places where all room modes are at their maximum strength. It does not matter where your speakers are located. If the speaker outputs a signal containing content at any of the room's modal frequencies that room mode will be excited and maximum excitation will occur in the corner. The only exception to this will be if the quarter wave cancellation associated with one of the the speaker to room surface dimensions happens to coincide with a modal frequency and the two cancel each other out.

You don't have to have the speaker in a corner in order to excite all modes and, regardless of where the speaker is placed, the only modes that will ever be excited are those associated with frequencies the speaker is actually outputting. It's highly unlikely that all room modes would ever be simultaneously excited while playing music, regardless of speaker placement.

"the only place where you perceive maximum amplitude of ALL modes is in a corner."

That is true, and it's true because of the reasons given above.

David Aiken

Follow Ups:

RE: It does not matter where your speakers are located. - KlausR. 21:24:08 05/31/08 (0)

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