<p dir="ltr">Hi Gabbe, <br>
To my understanding this would have a positive effect. There are actually some commercial products that are designed "your" way. But </p>
<div class="gmail_quote">בתאריך 24 ביול 2014 09:21, "Gabriel Nordeborn" <<a href="mailto:gabbe.nord@gmail.com">gabbe.nord@gmail.com</a>> כתב:<br type="attribution"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div dir="ltr"><div><div><div>Time to revive this old thread... Thank you for all of your messages and thoughts! After what feels like ages, I finally have time to start this project for real.<br><br></div>A question about low frequency absorption/bass traps:<br>
<br></div>- One of the best ideas I've seen around for doing DIY bass traps is to cut triangles from the rock wool, and then place the triangles in the corners, from bottom to roof. I won't be able to do it that way just yet, BUT, I wonder whether it would be an idea to just stack rock wool panels on top of eachother in the corners, and achieve at least some low end frequency absorption? This wouldn't cover the entire area of the corner, but would still make some I guess. My monitors are very small and don't produce a lot of low end, and I won't be recording a lot of bassy stuff either, so maybe this could suffice as a starting point? See image attached.<br>
<br></div>Thoughts? thanks again for all the info!<br></div><div class="gmail_extra"><br><br><div class="gmail_quote">On Sun, May 25, 2014 at 10:07 PM, Moshe Werner <span dir="ltr"><<a href="mailto:moshwe@gmail.com" target="_blank">moshwe@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><br><div class="gmail_quote"><br><div dir="ltr"><br><div class="gmail_extra"><br><br>Hi,<div class="gmail_quote">
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<div><div><div><div><div><div><br>I recently moved to a new flat, and I've just got my studio properly setup in one of the rooms. </div></div></div></div></div></div></div></div></div></blockquote></div><div>Congrats! I hope we get a lot of your beautiful music out of this room:) <br>
</div><div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr"><div><div><div><div><div><div><div><div>Problem is, the room is rather horrible acoustically. As this is the room I've got to play with, I'm going to have to make the best of it acoustically.<br>
<br>So, my question is about DIY acoustic absorbers. I'm most likely looking to build absorbers both for mid/hi-end (I'm thinking the classical rock wool ones you place spaced out a bit form the walls) and for the lower end, but I am very much open for suggestions. Here's some specs of my setup:<br>
</div></div></div></div></div></div></div></div></div></blockquote><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr"><div><div><div><div>
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<br></div>- The room is roughly 3.60m wide, 3.40m long and 2.50m high. I think at least one wall is concrete.<br></div></div></div></div></div></div></div></div></blockquote></div><div>As first step I would consider to mix facing the narrow side of the room<br>
<img style="margin-top:82px;margin-right:0px" src="http://realtraps.com/art_symmetry.gif" height="154" width="116"></div><div> Plus always keep everything nice and symmetric.<br></div><div>Also I would recommend to measure the room to see what problems you're dealing with. <a href="http://www.roomeqwizard.com/" target="_blank">http://www.roomeqwizard.com/</a> is available for Linux AFAIK.<br>
</div><div><div><br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr"><div><div><div><div><div><div><div></div>- My mixing position/monitors is in the middle of the front wall. I sit about 1.20m out from the wall.<br>
</div></div></div></div></div></div></div></blockquote></div><div>Have you heard about the 38% rule? If not read up on this <a href="http://realtraps.com/art_room-setup.htm" target="_blank">http://realtraps.com/art_room-setup.htm</a>, also covers early reflection points.<br>
</div><div><div><br> </div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr"><div><div><div><div><div><div>
</div>- My monitors are small, a set of Adam A3X (so 3" elements I guess). It basically gives very low bass response, so I can hear fairly OK down to about 80hz, rapidly declining down to 60hz where there's nothing left.<br>
</div></div></div></div></div></div></blockquote></div><div>Less low energy buildup, but as you mentioned you won't know whats down there so I would recommend you to treat for lower frequencies in case you upgrade your speakers in the future. <br>
</div><div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr"><div><div><div><div><div>
</div><div>- I am not terribly dependent on mixing at high volumes, if that matters.<br></div></div></div></div></div></div></blockquote></div><div>It matters a bit as there is less energy to be absorbed, but again I would treat properly just in case you want to listen with higher SPL's, so it doesn't totally change the EQ of your mix (anyway it will change with sound pressure level because of <a href="http://en.wikipedia.org/wiki/Equal-loudness_contour" target="_blank">equal loudness contour</a>) <br>
</div><div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr"><div><div><div><div><br></div>What I currently have is:<br>- Two large bookshelves along the wall right behind my mixing position acting as diffusors. These go almost all the way up to the ceiling, and has stuff unevenly stacked at different heights/positions in the bookshelf. They cover 1.60m in the middle of the back wall.</div>
</div></div></div></blockquote></div><div>I've got good experience with bookshelves in homestudios, given they aren't to close behind the listening position. <br></div><div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
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- I also have a fairly large carpet on the floor in the middle of the room. It probably doesn't do that much, but maybe it does a little.<br></div></div></div></div></blockquote></div><div>It does a little in preventing flutter echo of high frequencies. <br>
</div><div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr"><div><div><div><br></div>My question then is; are there any effective ways of acoustically treating this room? Of course, given the topic of the e-mail, I'm very much willing to do my own DIY solutions, if that's a viable option. What I have been thinking is doing what I mention above; classical absorber "panels", and bass traps.<br>
</div></div></div></blockquote></div><div>I would treat the corners and early reflection points first.<br></div><div>In a homestudio of a friend we filled the corners with rockwool made a wooden frame and covered them with fabric.<br>
</div><div>Early reflection points can be treated with 10-15cm thick "classical absorber panels".<br></div></div></div><div>For our live room we've done something else, we made wooden slat covered frames and filled the cavity with rockwool .<br>
</div><div><div>I like what it does to the room as it doesn't make it dead but tames the response quite nicely.<br></div><div><div><br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<div dir="ltr"><div><div>
<br></div>But, before I start anything, I'd very much like input from people who actually know what they're talking about (I'm looking at you on this list ;) ). So, does anyone have thoughts/suggestions for me? Any recommended way of doing this?<br>
<br></div>Thank you very much for any help and any replies!<br></div></blockquote></div><div>Best of luck!<span><font color="#888888"><br></font></span></div><span><font color="#888888"><div>
Moshe <br></div></font></span></div></div><br></div></div>
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