How have you determined that reflections from the room walls are the source of the perceptual problems?
To test for that, it might be best to try a temporary fix first. I have successfully used moving blankets to prototype room treatment. If moving blankets are installed away from the actual walls then they are extremely efficient absorbers, even down to low frequencies. This can be done using hooks and twine and the amount of absorption can make the room almost anechoic. Perhaps they can be attached to the outside of your rig. Moving blankets can typically be purchased for $10 each or about $80 for a dozen. On Tuesday, October 21, 2014 1:52 AM, Bo-Erik Sandholm <bo-erik.sandh...@ericsson.com> wrote: Covering the corners - floor and walls + roof and walls with something diffusing or absorbing is probably the most important, a corner is a perfect for reflecting incoming sound back in source direction. After the corners come the other 90 degrees angles bit hey are not as critical, but a soft longhaired carpet along the walls or on the walls up to around a meter height is good. Best Regards Bo-Erik -----Original Message----- From: Sursound [mailto:sursound-boun...@music.vt.edu] On Behalf Of Tommaso Perego Sent: den 21 oktober 2014 07:10 To: sursound@music.vt.edu Subject: [Sursound] Ambisonic Cube reverberation attenuation with foam Hello Everyone I was wondering if you could please help me solve the following problem. I have encountered reverberation issues with an Ambisonic installation, of dimension 5x5x2.5 meters (a squashed cube, so to speak). I have noticed that reverberation is due to the proximity to the surrounding walls (7x12x6), causing imperfect appreciation of the spatial sound designs when heard in the middle of the cube. Assuming that this is the correct understanding of the problem I was wondering if: - surrounding the cube with the following foam material http://www.anyfoam.co.uk/sheet-foam.php <http://www.anyfoam.co.uk/sheet-foam.php> (the acoustic foam) would significantly reduce reverberation effect to better the definition inside the cube? - where exactly would be best to put the foam? Would just the sides (excluding floor and ceiling) of the cube be enough ? - should reducing the overall sound power improve the situation? Looking forward to hear your opinion, I would greatly appreciate your help Thank you kind Regards Tommaso -------------- next part -------------- An HTML attachment was scrubbed... URL: <https://mail.music.vt.edu/mailman/private/sursound/attachments/20141021/7de23efb/attachment.html> _______________________________________________ Sursound mailing list Sursound@music.vt.edu https://mail.music.vt.edu/mailman/listinfo/sursound - unsubscribe here, edit account or options, view archives and so on. _______________________________________________ Sursound mailing list Sursound@music.vt.edu https://mail.music.vt.edu/mailman/listinfo/sursound - unsubscribe here, edit account or options, view archives and so on. -------------- next part -------------- An HTML attachment was scrubbed... URL: <https://mail.music.vt.edu/mailman/private/sursound/attachments/20141021/17073ca2/attachment.html> _______________________________________________ Sursound mailing list Sursound@music.vt.edu https://mail.music.vt.edu/mailman/listinfo/sursound - unsubscribe here, edit account or options, view archives and so on.
