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Forum: Audio theory, Setup and Chat   10-24-2014, 05:06 PM
Replies: 7
Views: 286
Posted By localhost127
diffusers create more reflections which create...

diffusers create more reflections which create more comb-filtering (more dense and closely spaced "comb-filters").

sparse specular reflections (eg, incident off that of a flat, rigid boundary)...
Forum: Audio theory, Setup and Chat   10-24-2014, 05:03 PM
Replies: 7
Views: 286
Posted By localhost127
1-dimensional reflection phase grating diffusers...

1-dimensional reflection phase grating diffusers (of the QRD or PRD variety) with the wells oriented vertically generate diffraction lobes (spatial dispersion) in the horizontal plane and vice-versa....
Forum: Audio theory, Setup and Chat   09-14-2014, 07:39 AM
Replies: 21
Views: 1,063
Posted By localhost127
this depends on the reproduction environment...

this depends on the reproduction environment (2ch, surround, etc) and what the goal is? goal meaning how do you want indirect energy to impede the listening position over time. one cannot provide...
Forum: Audio theory, Setup and Chat   09-14-2014, 06:42 AM
Replies: 73
Views: 2,001
Posted By localhost127
LF absorption (be it of velocity-based porous...

LF absorption (be it of velocity-based porous absorbers or pressure-based resonant absorbers) is typically deployed in a small reproduction room to do (2) things:

first, used to attenuate a...
Forum: Audio theory, Setup and Chat   09-05-2014, 02:48 PM
Replies: 104
Views: 3,205
Posted By localhost127
the physical sound-field between Large and Small...

the physical sound-field between Large and Small acoustical spaces are "wildly different" - enough to warrant being entirely different sub-categories of acoustics; each with their own representative...
Forum: Audio theory, Setup and Chat   09-05-2014, 02:43 PM
Replies: 48
Views: 1,508
Posted By localhost127
what consumer? this is the Audio Theory...

what consumer? this is the Audio Theory sub-forum and the OP is asking questions specifically related to the theory of line arrays and subsequent "comb-filtering".




what do these statements...
Forum: Audio theory, Setup and Chat   09-03-2014, 08:35 PM
Replies: 21
Views: 1,063
Posted By localhost127
it's a common misconception (or lack of...

it's a common misconception (or lack of awareness) to equate the speaker-listener response with the listener-room response as one in the same. a "dead room" doesn't tell you much as it lacks context...
Forum: Audio theory, Setup and Chat   09-03-2014, 07:54 PM
Replies: 104
Views: 3,205
Posted By localhost127
there is a great difference between small...

there is a great difference between small acoustical spaces (residential rooms) and large acoustical spaces (concert halls, auditoriums) - and this is specifically why the vocabulary exists for both....
Forum: Audio theory, Setup and Chat   09-03-2014, 07:46 PM
Replies: 48
Views: 1,508
Posted By localhost127
sure they do; although it's a bit backwards to...

sure they do; although it's a bit backwards to discuss it with such terminology.

a "comb-filter" does not exist in the real world in this context; it is merely a name given to an interference...
Forum: Audio theory, Setup and Chat   03-20-2014, 06:16 PM
Replies: 12,051
Views: 325,730
Posted By localhost127
Quote:Originally Posted by...

Quote:Originally Posted by markus767 http://www.avsforum.com/img/forum/go_quote.gif...
Forum: Audio theory, Setup and Chat   03-20-2014, 06:03 PM
Replies: 12,051
Views: 325,730
Posted By localhost127
Quote:Originally Posted by...

Quote:Originally Posted by jim19611961 http://www.avsforum.com/img/forum/go_quote.gif...
Forum: Audio theory, Setup and Chat   03-19-2014, 06:48 PM
Replies: 12
Views: 692
Posted By localhost127
assuming an "anechoic chamber" is created when...

assuming an "anechoic chamber" is created when one merely wishes to minimize room contributions from the source at a given receiver position within the bounded acoustical space is merely a form of...
Forum: Audio theory, Setup and Chat   03-19-2014, 06:19 PM
Replies: 12,051
Views: 325,730
Posted By localhost127
Quote:Originally Posted by...

Quote:Originally Posted by AustinJerry http://www.avsforum.com/img/forum/go_quote.gif...
Forum: Audio theory, Setup and Chat   03-07-2014, 04:21 AM
Replies: 12,051
Views: 325,730
Posted By localhost127
Quote:Originally Posted by...

Quote:Originally Posted by markus767 http://www.avsforum.com/img/forum/go_quote.gif...
Forum: Audio theory, Setup and Chat   03-06-2014, 03:22 PM
Replies: 12,051
Views: 325,730
Posted By localhost127
Quote:Originally Posted by...

Quote:Originally Posted by markus767 http://www.avsforum.com/img/forum/go_quote.gif...
Forum: Audio theory, Setup and Chat   02-28-2014, 06:52 AM
Replies: 302
Views: 9,508
Posted By localhost127
Quote:Originally Posted by...

Quote:Originally Posted by 3ll3d00d http://www.avsforum.com/img/forum/go_quote.gif (http://www.avsforum.com/t/1515874/advanced-room-eq-acoustics-and-optimization/240_60#post_24418700)

I've been...
Forum: Audio theory, Setup and Chat   02-21-2014, 05:11 AM
Replies: 7
Views: 481
Posted By localhost127
http://www.audiocheck.net/audiotests_ledr.php

http://www.audiocheck.net/audiotests_ledr.php
Forum: Audio theory, Setup and Chat   02-19-2014, 07:04 AM
Replies: 302
Views: 9,508
Posted By localhost127
Quote:Originally Posted by...

Quote:Originally Posted by markus767 http://www.avsforum.com/img/forum/go_quote.gif (http://www.avsforum.com/t/1515874/advanced-room-eq-acoustics-and-optimization/180#post_24378833)

It is. After...
Forum: Audio theory, Setup and Chat   02-19-2014, 04:41 AM
Replies: 302
Views: 9,508
Posted By localhost127
Quote:Originally Posted by...

Quote:Originally Posted by markus767 http://www.avsforum.com/img/forum/go_quote.gif (http://www.avsforum.com/t/1515874/advanced-room-eq-acoustics-and-optimization/180_60#post_24378387)

No, there...
Forum: Audio theory, Setup and Chat   02-18-2014, 03:31 PM
Replies: 302
Views: 9,508
Posted By localhost127
Quote:Originally Posted by...

Quote:Originally Posted by jim19611961 http://www.avsforum.com/img/forum/go_quote.gif (http://www.avsforum.com/t/1515874/advanced-room-eq-acoustics-and-optimization/180_60#post_24374384)

Is there...
Forum: Audio theory, Setup and Chat   02-17-2014, 08:53 PM
Replies: 302
Views: 9,508
Posted By localhost127
Quote:Originally Posted by...

Quote:Originally Posted by sdurani http://www.avsforum.com/img/forum/go_quote.gif (http://www.avsforum.com/t/1515874/advanced-room-eq-acoustics-and-optimization/120_60#post_24367760)

Notice that...
Forum: Audio theory, Setup and Chat   02-17-2014, 07:28 PM
Replies: 302
Views: 9,508
Posted By localhost127
Quote:Originally Posted by...

Quote:Originally Posted by sdurani http://www.avsforum.com/img/forum/go_quote.gif (http://www.avsforum.com/t/1515874/advanced-room-eq-acoustics-and-optimization/180_60#post_24371085)

"The" goal...
Forum: Dedicated Theater Design & Construction   02-17-2014, 05:01 PM
Replies: 10,504
Views: 1,355,786
Posted By localhost127
Quote:Originally Posted by...

Quote:Originally Posted by mtbdudex http://www.avsforum.com/img/forum/go_quote.gif (http://www.avsforum.com/t/255432/acoustical-treatments-master-thread/9960_60#post_24295978)

Visual on porous...
Forum: Audio theory, Setup and Chat   12-29-2013, 08:44 AM
Replies: 20
Views: 438
Posted By localhost127
Quote:Originally Posted by...

Quote:Originally Posted by amirm http://www.avsforum.com/img/forum/go_quote.gif (http://www.avsforum.com/t/1508194/floor-reflections/0_60#post_24130355)

As I said, research does show it to be...
Forum: Audio theory, Setup and Chat   12-28-2013, 07:53 PM
Replies: 20
Views: 438
Posted By localhost127
Quote:Originally Posted by...

Quote:Originally Posted by amirm http://www.avsforum.com/img/forum/go_quote.gif (http://www.avsforum.com/t/1508194/floor-reflections/0_60#post_24129768)

Listening test show that audibility...
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