R/E/P > Acoustics in Motion

Taming Desk Reflections

(1/2) > >>

eightyeightkeys:
I don't have a console, but, I have a wrap-around workstation desk with an exposed (unused area) horizontal, wooden surface that is playing it's part in what I hear.
What are some good materials for taming/elimination desk reflections ?

Thomas Jouanjean:
eightyeightkeys wrote on Mon, 08 November 2010 09:13
I don't have a console, but, I have a wrap-around workstation desk with an exposed (unused area) horizontal, wooden surface that is playing it's part in what I hear.
What are some good materials for taming/elimination desk reflections ?


There isn't really a particular one, best is to go via trial an error - and also consider what is healthy and will resist in the long term. Minimal desk design is your friend though... Think mastering desks.

You wouldn't believe how much 'flange' you get from the surface of a SSL 4000G+ for ex. But this is a given, no work-around.

What's even more annoying is that once you get a "minimal" table, then the floor effect kicks in full effect and that's a nasty one too.

And same same. Not really anything you can do about it.

AndreasN:
A large surface can be used to block the floor reflection if it intersects the path between speaker and listener. Speakers placed on stands some way behind the work surface may benefit from this approach.

Absorption is also an option. Thick chunks of foam is convenient.

http://recforums.prosoundweb.com/index.php/m/180996/7551/?sr ch=nordenstam#msg_180996

Thomas Jouanjean:
Depends on wavelength...

There are only compromises to be made with these issues. Pick your poison  

Bogic Petrovic:
For extremely small rooms (V<70m3), especially with some low frequency acoustic treatment, we found “no desk” is a probably best solution, if someone has prerequisites to do that. One of the conditions is to use only mouse/trackball and keyboard for working. Of course, some small DAW controller can be used too.

Idea is to split desk to two halves, and moves (reflecting) surfaces to left and right sides of the chair (above the racks, for example), and miss listener ears. In this case, it is revealed much more high frequency details than with any ordinary desk or/and desk treatments we already know (acoustic foam or cotton felt cover,  etc.).

Also, (now) uncovered floor reflections has much smaller bad contribution in overall subjective sound image, because different and longer path, they spoil different frequency range and has much smaller intensity (4-10dB) ... and possibly because we are more naturally immune/adapted to it.

And yes, I agree, this is a story about compromises...


p.s. Also, a big LCD HD TV can be used for computer display, mounted between left and right loudspeaker. This solution solves VGA display diffraction problems too.

Navigation

[0] Message Index

[#] Next page