Adverteerders
EASY NOISE CONTROL
#wijzijnakoestiek
Akoestiek en Geluidsisolatie
FAQ
ZOEKEN
Gebruikers
Registreer (NIET verplicht!)
Profiel
Inloggen
Geluidforum.nl forum index
->
Akoestiek
Plaats reactie
Gebruikersnaam
Onderwerp
Gastcode
Voer
"e3bbb"
in om uw gast-bijdrage te plaatsen
Bericht
Emoticons
Meer emoticons
Letter kleur:
Standaard
Donkerrood
Rood
Oranje
Bruin
Geel
Groen
Olijf
Cyaan
Blauw
Donkerblauw
Indigo
Violet
Wit
Zwart
Letter grootte:
Heel klein
Klein
Normaal
Groot
Erg groot
Sluit tags
[quote="Eric Desart"][quote="Greatday"]No problem, will do![/quote] Greatday & Geluidforum With many thanks for the articles and help ..... Much appreciated [/quote]
Opties
HTML is
AAN
BBCode
is
AAN
Smilies staan
AAN
Schakel HTML uit in dit bericht
Schakel BBCode uit in dit bericht
Schakel smilies uit in dit bericht
Indien je de code niet kan lezen of blind of slechtziend bent, neem dan contact op met de
Administrator
.
Bevestigingscode: *
Voer de code in exact zoals je die ziet. Let op hoofdletters, een nul heeft een diagonale lijn.
Tijden zijn in GMT + 2 uur
Ga naar:
Kies forum
Bedrijfsmatig
----------------
Geluid op de werkplek
Geluid naar de omgeving
Particulier
----------------
In het huis
Om het huis
Hobby en vrije tijd
Geluid en Geluidregelgeving
----------------
Akoestiek
Expert-forum
Forumgerelateerd
----------------
Informatie over dit forum
Off Topic
Feedback
Onderwerp
<table border="0" cellpadding="3" cellspacing="1" width="100%" class="forumline"> <tr> <th class="thCornerL" width="22%" height="26">Auteur</th> <th class="thCornerR">Bericht</th> </tr> <tr> <td width="22%" align="left" valign="top" class="row1"><span class="name"><a name=""></a><b>Eric Desart</b></span></td> <td class="row1" height="28" valign="top"><table width="100%" border="0" cellspacing="0" cellpadding="0"> <tr> <td width="100%"><img src="templates/subSilver/images/icon_minipost.gif" width="12" height="9" alt="Bericht" title="Bericht" border="0" /><span class="postdetails">Geplaatst: Vr Apr 05, 2013 11:27 am<span class="gen"> </span> Onderwerp: </span></td> </tr> <tr> <td colspan="2"><hr /></td> </tr> <tr> <td colspan="2"><span class="postbody"></span><table width="90%" cellspacing="1" cellpadding="3" border="0" align="center"><tr> <td><span class="genmed"><b>Greatday schreef:</b></span></td> </tr> <tr> <td class="quote">No problem, will do!</td> </tr></table><span class="postbody"> <br /> <br />Greatday & Geluidforum <br /> <br />With many thanks for the articles and help ..... Much appreciated <br /> </span></td> </tr> </table></td> </tr> <tr> <td colspan="2" height="1" class="spaceRow"><img src="templates/subSilver/images/spacer.gif" alt="" width="1" height="1" /></td> </tr> <tr> <td width="22%" align="left" valign="top" class="row2"><span class="name"><a name=""></a><b>Geluidforum</b></span></td> <td class="row2" height="28" valign="top"><table width="100%" border="0" cellspacing="0" cellpadding="0"> <tr> <td width="100%"><img src="templates/subSilver/images/icon_minipost.gif" width="12" height="9" alt="Bericht" title="Bericht" border="0" /><span class="postdetails">Geplaatst: Do Apr 04, 2013 11:56 am<span class="gen"> </span> Onderwerp: </span></td> </tr> <tr> <td colspan="2"><hr /></td> </tr> <tr> <td colspan="2"><span class="postbody">Al gebeurd! / Done!</span></td> </tr> </table></td> </tr> <tr> <td colspan="2" height="1" class="spaceRow"><img src="templates/subSilver/images/spacer.gif" alt="" width="1" height="1" /></td> </tr> <tr> <td width="22%" align="left" valign="top" class="row1"><span class="name"><a name=""></a><b>Eric Desart</b></span></td> <td class="row1" height="28" valign="top"><table width="100%" border="0" cellspacing="0" cellpadding="0"> <tr> <td width="100%"><img src="templates/subSilver/images/icon_minipost.gif" width="12" height="9" alt="Bericht" title="Bericht" border="0" /><span class="postdetails">Geplaatst: Do Apr 04, 2013 11:33 am<span class="gen"> </span> Onderwerp: </span></td> </tr> <tr> <td colspan="2"><hr /></td> </tr> <tr> <td colspan="2"><span class="postbody">Geluidforum, <br /> <br />Wil of kan jij mijn emailadres door emailen aan Greatday? <br />a.u.b.?</span></td> </tr> </table></td> </tr> <tr> <td colspan="2" height="1" class="spaceRow"><img src="templates/subSilver/images/spacer.gif" alt="" width="1" height="1" /></td> </tr> <tr> <td width="22%" align="left" valign="top" class="row2"><span class="name"><a name=""></a><b>Greatday</b></span></td> <td class="row2" height="28" valign="top"><table width="100%" border="0" cellspacing="0" cellpadding="0"> <tr> <td width="100%"><img src="templates/subSilver/images/icon_minipost.gif" width="12" height="9" alt="Bericht" title="Bericht" border="0" /><span class="postdetails">Geplaatst: Do Apr 04, 2013 6:55 am<span class="gen"> </span> Onderwerp: </span></td> </tr> <tr> <td colspan="2"><hr /></td> </tr> <tr> <td colspan="2"><span class="postbody">No problem, will do!</span></td> </tr> </table></td> </tr> <tr> <td colspan="2" height="1" class="spaceRow"><img src="templates/subSilver/images/spacer.gif" alt="" width="1" height="1" /></td> </tr> <tr> <td width="22%" align="left" valign="top" class="row1"><span class="name"><a name=""></a><b>Eric Desart</b></span></td> <td class="row1" height="28" valign="top"><table width="100%" border="0" cellspacing="0" cellpadding="0"> <tr> <td width="100%"><img src="templates/subSilver/images/icon_minipost.gif" width="12" height="9" alt="Bericht" title="Bericht" border="0" /><span class="postdetails">Geplaatst: Do Apr 04, 2013 6:31 am<span class="gen"> </span> Onderwerp: </span></td> </tr> <tr> <td colspan="2"><hr /></td> </tr> <tr> <td colspan="2"><span class="postbody">Greatday, <br /> <br />Can you email me that paper if Geluidforum (the administrator of this site) emails you my personal email address? <br /> <br />With many thanks ...</span></td> </tr> </table></td> </tr> <tr> <td colspan="2" height="1" class="spaceRow"><img src="templates/subSilver/images/spacer.gif" alt="" width="1" height="1" /></td> </tr> <tr> <td width="22%" align="left" valign="top" class="row2"><span class="name"><a name=""></a><b>Greatday</b></span></td> <td class="row2" height="28" valign="top"><table width="100%" border="0" cellspacing="0" cellpadding="0"> <tr> <td width="100%"><img src="templates/subSilver/images/icon_minipost.gif" width="12" height="9" alt="Bericht" title="Bericht" border="0" /><span class="postdetails">Geplaatst: Wo Apr 03, 2013 7:36 pm<span class="gen"> </span> Onderwerp: </span></td> </tr> <tr> <td colspan="2"><hr /></td> </tr> <tr> <td colspan="2"><span class="postbody"></span><table width="90%" cellspacing="1" cellpadding="3" border="0" align="center"><tr> <td><span class="genmed"><b>Eric Desart schreef:</b></span></td> </tr> <tr> <td class="quote">Can you upload this Louden Paper somewhere please?</td> </tr></table><span class="postbody"> <br /> <br />Eric, <br /> <br />Thanks for all you valuable hard work which you have posted which I have ran into and have been referencing extensively. While I would be glad to make the paper available to you (I deem your previous work puts you well within fair usage) I’m hesitant to openly post copyrighted materials. Perhaps it would be useful to write a short summary with some of the main results/details? <br /> <br />PS: I finally got a username!</span></td> </tr> </table></td> </tr> <tr> <td colspan="2" height="1" class="spaceRow"><img src="templates/subSilver/images/spacer.gif" alt="" width="1" height="1" /></td> </tr> <tr> <td width="22%" align="left" valign="top" class="row1"><span class="name"><a name=""></a><b>Eric Desart</b></span></td> <td class="row1" height="28" valign="top"><table width="100%" border="0" cellspacing="0" cellpadding="0"> <tr> <td width="100%"><img src="templates/subSilver/images/icon_minipost.gif" width="12" height="9" alt="Bericht" title="Bericht" border="0" /><span class="postdetails">Geplaatst: Wo Apr 03, 2013 8:46 am<span class="gen"> </span> Onderwerp: </span></td> </tr> <tr> <td colspan="2"><hr /></td> </tr> <tr> <td colspan="2"><span class="postbody">Can you upload this Louden Paper somewhere please?</span></td> </tr> </table></td> </tr> <tr> <td colspan="2" height="1" class="spaceRow"><img src="templates/subSilver/images/spacer.gif" alt="" width="1" height="1" /></td> </tr> <tr> <td width="22%" align="left" valign="top" class="row2"><span class="name"><a name=""></a><b>Today's Guest</b></span></td> <td class="row2" height="28" valign="top"><table width="100%" border="0" cellspacing="0" cellpadding="0"> <tr> <td width="100%"><img src="templates/subSilver/images/icon_minipost.gif" width="12" height="9" alt="Bericht" title="Bericht" border="0" /><span class="postdetails">Geplaatst: Wo Apr 03, 2013 6:38 am<span class="gen"> </span> Onderwerp: </span></td> </tr> <tr> <td colspan="2"><hr /></td> </tr> <tr> <td colspan="2"><span class="postbody">Success!! My librarian came through and somehow did manage to get me a copy of Louden’s paper despite the bleak outlook. It is amazing how the details can fix everything! The key thing was to use the Rayleigh asymptotic formula of eigentones as a reference/ideal spacing when finding the standard deviation of modal frequency spacings. Reproducing Louden’s results was then trivial. I was surprised though to find much lower standard deviation than Louden once the gird mesh size was reduced. This is certainly meaningless when ratios have multiple decimal places but I wonder if anyone is aware of some smoothing/interpolation scheme that is suitable? A gradient weighted smoothing seems appropriate…. I still would love to hear from folks who have experience with this approach and can give me some further insight! <br /> <br />Now, time to address the Cox paper and the image source model. Still no progress on building the proper energy impulse response so I can FT to the power spectrum. Help would be great here as well!</span></td> </tr> </table></td> </tr> <tr> <td colspan="2" height="1" class="spaceRow"><img src="templates/subSilver/images/spacer.gif" alt="" width="1" height="1" /></td> </tr> <tr> <td width="22%" align="left" valign="top" class="row1"><span class="name"><a name=""></a><b>Geluidforum</b></span></td> <td class="row1" height="28" valign="top"><table width="100%" border="0" cellspacing="0" cellpadding="0"> <tr> <td width="100%"><img src="templates/subSilver/images/icon_minipost.gif" width="12" height="9" alt="Bericht" title="Bericht" border="0" /><span class="postdetails">Geplaatst: Di Apr 02, 2013 7:30 pm<span class="gen"> </span> Onderwerp: </span></td> </tr> <tr> <td colspan="2"><hr /></td> </tr> <tr> <td colspan="2"><span class="postbody">I Googled this: <a href="http://forum.studiotips.com/viewtopic.php?t=3148" target="_blank">http://forum.studiotips.com/viewtopic.php?t=3148</a> <br /> <br />Eric is a regular contributor here, so he'll most likely be able to explain more! <br /> <br />The article should be in Acustica issue 25-5 (1971)</span></td> </tr> </table></td> </tr> <tr> <td colspan="2" height="1" class="spaceRow"><img src="templates/subSilver/images/spacer.gif" alt="" width="1" height="1" /></td> </tr> <tr> <td width="22%" align="left" valign="top" class="row2"><span class="name"><a name=""></a><b>Today's Guest</b></span></td> <td class="row2" height="28" valign="top"><table width="100%" border="0" cellspacing="0" cellpadding="0"> <tr> <td width="100%"><img src="templates/subSilver/images/icon_minipost.gif" width="12" height="9" alt="Bericht" title="Bericht" border="0" /><span class="postdetails">Geplaatst: Di Apr 02, 2013 6:03 pm<span class="gen"> </span> Onderwerp: Small room ratio calculations</span></td> </tr> <tr> <td colspan="2"><hr /></td> </tr> <tr> <td colspan="2"><span class="postbody">What started as a search for a good practice room design is ending up to be an interest to create a dynamic calculation comparing various established methods. In particular I’m trying to replicate the geometric modal approach by M.M.Louden (71) results as well as the Cox&Antonio (2000) paper using the image source model approach. Off to a bad start with the unfortunate reply from my research librarian: "Your request has been cancelled by the interlibrary loan staff for the following reason: We have exhausted all possible sources. No library is able to supply this item." I have essentially given up on tracking down Louden’s paper and I’m trying to piece together what I can from online forums such as this one! I have been able to get a fairly good qualitative reproduction of the results but the quantitative results are off. At this point I assume details are important as I have noticed significant variations in the standard deviation of the modal spacing’s as a function of the frequency cutoff as well as the choice of “spacing metric”. If anyone has some ideas, comments, anything I’d appreciate it!! At this point I’m just about ready to try anything! <img src="images/smiles/icon_wink.gif" alt="Wink" border="0" /></span></td> </tr> </table></td> </tr> <tr> <td colspan="2" height="1" class="spaceRow"><img src="templates/subSilver/images/spacer.gif" alt="" width="1" height="1" /></td> </tr> </table>
Powered by
phpBB
© 2001, 2005 phpBB Group.
FAQ
ZOEKEN
Gebruikers
Registreer (NIET verplicht!)
Profiel
Inloggen