Our Main Room - With video and audio.

[Pughouse Studios]

Hey guys,

Thought you might be interested in hearing the results of our main room.

Basically the space consists of no right angles at all, 4 panes of double glazed glass that are connections to the other rooms (covering two of the faces of the room), the remaining surfaces were treated as so:

We hung baffles of 2m x 1.3 m (approx) from frames that we constructed, which are connected to the walls. The reason for hanging them is so they provide less resistance to bass frequencies.

For the actual absorptive material of the baffles, we used Acoustisorb. At 250Hz the co-efficients range from 0.42 - 1.08 depending on what type you get.

(All types of Acoustisorb and their co-efficients can be seen here: http://www.soundblock.com.au/pdf/tontin ... sorb_2.pdf)

We then placed fabric over the frames mainly for aesthetic purposes, but the porous nature of the fabric also helps to dampen the higher frequencies.

The ceiling was exactly the same process as the walls.

We left the concrete flooring as it maintained the 'liveness' of the room. The advantage of this, is that if you do require a more 'dead' room, you can always lay a big rug. This makes the room very versatile.

We think this approach worked really well, hopefully it has helped you out!

Anyway, here's the video.

http://www.youtube.com/watch?v=PKxWANyUcoY

[Soundman2020]

Interesting. How about doing an analysis of that room using REW, and post the result here? It would be useful to see how it is behaving. It sounds like there is some ringing in there at some frequencies.

We hung baffles of 2m x 1.3 m (approx) from frames that we constructed, which are connected to the walls. The reason for hanging them is so they provide less resistance to bass frequencies.

Well.... actually no, that's not really what they are doing. Absorbent baffles provide more resistance to sound passing through them, not less resistance. That's the entire purpose of absorption: the fibers resist the passage of sound waves by converting some of the velocity component of the sound wave to low-grade heat, thus removing acoustic energy form the wave. The amount of absorption is dictated by the gas flow resistivity characteristics of the absorbent material. And spacing them away from the walls INCREASES bass absorption: it does not reduce bass absorption (unless you move them a very long way away from the walls). Absorbent bass traps show peak absorption to normally incident sound when spaced one quarter wavelength from a wall.

We then placed fabric over the frames mainly for aesthetic purposes, but the porous nature of the fabric also helps to dampen the higher frequencies.

Well, not really. Unless you used really heavy, thick, and dense fabric, then it has practically no effect on high frequencies.

Anyway, here's the video.

Nice drum kit, by the way!

(All types of Acoustisorb and their co-efficients can be seen here

There was something wrong with your link: it went to Google, for some weird reason. But I fixed it for you: it now goes to the right place.


- Stuart -

[Pughouse Studios]

I never said anything about baffles themselves providing less resistance. Nor did I mention anything about spacing.

Engineers used to stick tissue paper (very thin and light) over the tweeters of their original ns10's because the highs were too harsh. Which then lead Yamaha to put the grill over the later models.

But anyway thanks! It is a very nice kit.

[Soundman2020]

I never said anything about baffles themselves providing less resistance.

curiously, in your previous post you said "The reason for hanging them is so they provide less resistance to bass frequencies.".

The arrogance. And from a moderator too!

Ahhh! I get it! So only newbies can be arrogant?

[mikelol]

It will be much better to show us the concrete flooring so that we can see how you make it seem vertical with the rug. Why not try some other flooring materials such as sold wood flooring, vinyl flooring, laminate flooring, bamboo flooirng or ceramic tile?

[Soundman2020]

show us the concrete flooring so that we can see how you make it seem vertical with the rug.

What makes you think he made his floor "seem vertical"?

- Stuart -