Re: "laying a bass trap down"

Posted by Chris_F (A) on March 3, 2005 at 04:31:04

In Reply to: "laying a bass trap down" posted by David Aiken on March 2, 2005 at 23:31:37:

Here's my understanding...

Imaging is usually effected by coherent reflections and diffusion is applied to break up these coherent reflections. Our ears are situated on a horizontal plane and its the stereo effect the ear placement provides that creates the image. As a result it is only necessary to break up coherent reflections on the horizontal plane as those are the reflections which are detrimental to imaging. If we had three ears (one on the vertical plane) then it would be necessary to diffuse vertical coherent reflections as well.

The reflection point which is coherent in an audio system is going to be speaker-shaped (tall and thin) as it's a coherent reflection of the radiating speaker. Thus the diffuser need only be similarly shaped (tall and thin, though a wider diffuser won't hurt matters). Thus if you're diffusing a coherent reflection with a tube trap you should place it in an orientation that mimics the speaker's shape: the tall/thin way instead of the short/wide way.

This post is made possible by the generous support of people like you and our sponsors:

Follow Ups Full Thread

Topic - Room acoustics and bass trap question - tlenthe 07:16:13 03/02/05 (19)

Re: Room acoustics and bass trap question - Jon Risch 20:31:57 03/02/05 (9)

"laying a bass trap down" - David Aiken 23:31:37 03/02/05 (8)

Actual Reply - Jon Risch 09:13:33 03/05/05 (2)

Re: Actual Reply - David Aiken 12:53:50 03/05/05 (1)

Yup, those intangibles matter too (nt) - Jon Risch 20:13:18 03/05/05 (0)

Re: "laying a bass trap down" - Jon Risch 20:58:43 03/03/05 (1)

Thanks, Jon (NT) - David Aiken 22:05:37 03/03/05 (0)

Re: "laying a bass trap down" - Chris_F 04:31:04 03/03/05 (2)

I accept what you say, butâ€¦ - David Aiken 15:29:44 03/03/05 (1)

To quote Emily Litella "Oh... Nevermind..." nt - Chris_F 17:23:18 03/03/05 (0)

A different idea. Use both. - bartc 20:31:31 03/02/05 (0)

Re: Room acoustics and bass trap question - David Aiken 19:28:32 03/02/05 (0)

Suggestion: - Kal Rubinson 13:23:41 03/02/05 (3)

Why? (nt) - Jon Risch 20:26:34 03/02/05 (2)

Why - Kal Rubinson 11:13:22 03/03/05 (1)

Re: Why - Jon Risch 20:42:14 03/03/05 (0)

Listen - Chris_F 07:40:16 03/02/05 (2)

re: Thanks! - tlenthe 09:57:20 03/02/05 (1)

I really don't know - Chris_F 11:04:12 03/02/05 (0)

Follow Ups

Re: "laying a bass trap down" - Chris_F 04:31:04 03/03/05 (2)

I accept what you say, butâ€¦ - David Aiken 15:29:44 03/03/05 (1)

To quote Emily Litella "Oh... Nevermind..." nt - Chris_F 17:23:18 03/03/05 (0)

You can not post to an archived thread.