Monitor & Mixing Desk Placement - Reflection Issues

[localhost127]

Originally Posted by DanDan

If you can see the tweeter in the mirror you have an ACTUAL path.

this is entirely false.. simply seeing the tweeter (more correctly, the acoustic center) in the mirror does not mean that there is high-gain indirect energy being dispersed to that reflection path.

if you're referring to light (electromagnetic radiation within the visible spectrum), then yes - seeing the tweeter in the mirror is an ACTUAL path

do you understand the difference between POSSIBLE and ACTUAL in the context of this thread?

POSSIBLE = a geometric reflection path from source to listening position (X-order reflection)

ACTUAL = measured, high-gain reflection via the geometric reflection path --- based on speaker's dispersion/radiation pattern, acoustical impedance of boundary, total flight path, etc - of which determine whether such a reflection path is a source of high-gain indirect energy impeding the listening position (thus, requiring treatment).

is this confusion the reason why this thread is in such disarray??

[Jens Eklund]

Originally Posted by DanDan

If you can see the tweeter in the mirror you have an ACTUAL path.

Only the geometrical path. Not possible ones caused by diffraction (not saying that it necessarily always exist but why gamble and use an ineffective method that might not give you the complete picture?).

[John White]

Originally Posted by Jens Eklund

Only the geometrical path. Not possible ones caused by diffraction (not saying that it necessarily always exist but...

(Reasonably well stated. It seems you guys have chance after all.)

Jens,
Out of curiosity, how often would yousay this occurs? Also, what would you say is the primary source, if any, common to diffraction? Speakers themselves?

[Jens Eklund]

Originally Posted by John White

(Reasonably well stated. It seems you guys have chance after all.)

Jens,
Out of curiosity, how often would yousay this occurs? Also, what would you say is the primary source, if any, common to diffraction? Speakers themselves?

Speaker edges/stands (or the desk itself if placed on it), monitors (screens), mixing desk (naturally), gear racks and other obstacles.

[Whitecat]

I am going to close this thread because the bickering just won't cease.

The problem is: everyone is complaining about everyone else and I don't know who is right.

This is an esoteric argument to a layperson... only people with some pretty good grounding in physics are going to "get it."

Until we can find a moderator who has a better understanding of the minutiae of this stuff then posts are going to be deleted and these threads are going to be locked when they fall into disarray like this.

I suggest that all of you put each other on your ignore lists: then maybe this stuff won't happen.