Thread: Room acoustics

Quote: Originally Posted by ccrome2 I suspect you have plenty of flutter echo (due to hard, parallel walls) -- it would help to hang some tapestries, add some sofa's, anything soft that will remove energy from the room. Fill your bookshelves with stuff. But... Don't stick absorbers right at the primary reflection points. That would probably damage the timber of the speakers. Thanks Caleb. It seems you're all on the same page -...

Quote: Originally Posted by gcurrie Putting panels on the walls is not a very effective way of correcting a room. You will absorb stuff, but will still have nodes and nulls which will make audio sound less than optimal. Depends on the room and what the problem is. In this room I think the main problem is lack of big windows, creating something akin to a recording booth... The bass just has nowhere to go. There are also a lot of hard,...

Great results! I'm a member of a/v/home theater and recording studio forums, and I see the same type of posts from people who finally (against their initial impulses) invest in room treatment. It's so much more 'fun' to discuss how an upgrade to speaker x or cryogenically-treated cables or processor y will transform your listening experience. But those who treat their room invariably come back as true believers. I...

Ah! Now I see the problem in that room! Everything's hard :-) The bookshelves will all resonate and absorb very little. It's like an echoic chamber in there. I believe Phil is absolutely correct: you don't want to treat your room like a recording studio. Recording studios are specifically to get clean, clear, reflection free sound to the microphone. Reverberation can always be added later as necessary, but it can't ever be...

On my browser the attached image makes the message too small, i repost the text only in case it's the same for others. jean

Ok I'm curious. Suspecting some serious audiophile/sound engineer type humour? Not understanding the joke though I suppose the chart might be indicating it would be impossible to hear your wife or be heard?

Quote: Originally Posted by gcurrie Wow. Is the higher frequency response the same? Is it a tiled room? :-) Bass traps, bass traps, bass traps. Looks like you have the same echo Steve.

Spend some time digesting all the stuff on room reflections here http://www.linkwitzlab.com Fascinating stuff. Keith

There can be a trade-off between frequency response linearity and overall perceived sound quality at the listening position even in well-behaved room. Issues include optimizing toe-in and distance from side and rear walls. There can be some iterative adjustment required bewteen positioning the speakers and the room treatments. The ceiling reflections are often overlooked but may stand out more as the rest of the room improves. One track I use...

For the benefit of those that found this thread interesting or are considering room treatments I've posted a few pictures showing what was done in the room over the weekend and the resulting low frequency response. It's not perfect, but a it is a hell of a big improvement in the acoustics of the room. Treatments applied: 10 absorptive panels (4 acting as corner bass traps) 8 diffusers targeting 700Hz to 3500Hz Further gains can...