sounds of the studio

[larrye]

I just made an mp3 of some sounds in my studio, vocal check and hand claps. It is only 21 sec. long. Could some of you listen and tell me what you think.

If you crank up the volume you can really hear a ring on the hand clap, which I think is extended reverb at about 1300 Hz. This clip was made with the mic centered in the room.

Just go to my site and click on the link, studio sounds.

thanks,
Larry
http://pages.prodigy.net/ltucker45/index.html

 

[Henrik]

Isn't that ringing what is referred to as "flutter echo"? Anyway, I don't like it. To my limited understanding, putting some diffusion in that room will get rid of it.

What say the experts?

Cheers
/Henrik

 

[Dan Merrill]

Yeah, you got a flutter echo problem there. It's caused by parallel walls. The sound just bounces back and forth between them. With those front wall baffles you put up i wouldn't have thought you'd have this problem, but you do. So, what does the rest of the room look like in terms of walls and layout? Can you put up some more pix?

You can deal with flutter in a couple of ways- foam the offending walls, and/ or add some diffusion, depending on how much "liveness" you want the room to maintain. I just spent the past week building and installing acoustic panels to treat a massive flutter echo problem in a 70' x35' church, so I can probably give you some pointers

 

[John Sayers]

yup - flutter echo

cheers
John

 

[larrye]

Thanks for the info, I can't believe how much I am learning off you guys at this great site. From what John has said it looks like I will be building the wall units he posted. Do you think one four foot unit on each side and the rear wall absorber will do the trick?

Dan here is a sketch of my floor plan.

Thanks,
Larry

 

[Dan Merrill]

By the looks of things, I don't think the back wall is causing much, if any, of the flutter echo, as it takes 2 parallel walls to make it flutter ( Flutter= multiple repeats- like a cue ball bouncing back and forth between bumpers) Assuming the floor is carpeted you're not getting a floor to ceiling flutter, so that means the flutter is being produced between those side walls. I think absorbtion panels would do a fine job, although you may want to experiment with how many of them you put up, and where you put them. For instance, If you put one panel on each side wall just behind the mix position, you'd break up the flutter there, but going 6 feet back into the room the bare walls would still produce a flutter in that position.

I might suggest this if you are tracking acoustic instruments in this room too: put up side panels on both walls as I just described ( to the sides of the the mix position) to insure that the mix position has no flutter. Then I would experiment with staggering the panels on the opposing walls in the back of the room. this would allow for a bit of ambience in the rear of the room while still breaking up the flutter.

 

[larrye]

Hows this look?

Dan and anybody else,

Here is how I plan on treating the flutter echo problem. I redrew it to scale and show where I plan on placing the wall units that John so kindly posted.

Do you think this will solve the problem?

Larry

 

[Bushice]

Since they are wall units, and movable, I think the trick is to put them in place, run a sound test to see if the problem persists, then move them until you get the best possible room sound.

Their placement will all depend on where your sound problem is.

BTW - what size are those absorbers Height and Width ?

Bushice

 

[John Sayers]

I'd try for something like this Larrye. I'd make the back wall as dead as pos but you need to break up the flutter waves around the console area plus throughout the room. I agree with Dan that it's the long parallel walls that are your main problem plus that low ceiling over the console which we've talked about before.

so try this

cheers
JOhn

 

[larrye]

Thanks gentlemen,

Thanks for your input, and John I REALLY appreciate the drawing.

I now know what I NEED to do, now it's just a mater of time and money. When I get them built and installed I will post a picture or two. It will probably be a month though, before I am finished.

Thanks again,
Larry