Help with Studio Design Assignment

[TheChemistTree]

Hi All,

I am new to this forum so hello to everyone.

I am on here out of desperation. I am just about to finish my B.A. in Creative Studio Production and am down to my last assignment.

It is for designing a studio and i really have no idea where to begin.

My biggest issue is working out the axial modes. Although i know that you divide 2 x length/width/height with the speed of sound, how would i go about doing this when all the dimensions are odd? I know i can do lots of calculations but i need to work out the Mean Free Path and critical frequencies, where the first part of the calculation needs me to work out the volume and area of the room.

Does anybody have any ideas where i could start?

TCT

[AVare]

I am on here out of desperation. I am just about to finish my B.A. in Creative Studio Production and am down to my last assignment.

It is for designing a studio and i really have no idea where to begin.

You have no idea where to start and you are in your final year? Start here. Two great documents are John's Recording Manual and Rose's Guide To Acoustic Practice. At free they are truely priceless.

Andre

[Death By Darwin]

That BBC document seems to encourage triple leaf construction! Maybe it is just outdated, or only applies to concrete or brick leaves.
I like how they use the term "howlround" for feedback, never heard that before...

[AVare]

That BBC document seems to encourage triple leaf construction! Maybe it is just outdated, or only applies to concrete or brick leaves...

I do not understand the remark. Triple leaf, if designed for the isolation required, is quite effective. Rose defines the isolation requirements before discussing construction methods. BBC RD 1987 01 in fig 8 on pdf page 12 shows 5 wall constructions, all of which have the equivalent of over 90 STC. Look at fig 9 to see how 2 of those partitions were built and supported. Hardly home studio design, or even normal do it yourself professional studio owner doing their own sedign stuff.

For others following this thread Rose's first paragraph in 2.3(ii) pdf page 39 clearly qualifies when lightweight partitions are used. In short form,don't unless other factors do not let heavy parititns be built.

Andre

[TheChemistTree]

Thanks for the help guys.

Acoustic design only appeared in our third year, and as i am pretty strong on the production and mixing side of things i got all this work out of the way first knowing that i would struggle with this.

I now have 2 days to do this and at least have a better understanding now of how to go about things.

Cheers

TCT

[Soundman2020]

Does anybody have any ideas where i could start?

Maybe this will help a bit:

http://www.bobgolds.com/Mode/RoomModes.htm

- Stuart -

[AVare]

Stuart:

As read the first post, the OP had not even defined what the studio constraints and goals are. That is why I started with our "please read before you post." I was not expecting the OP to post the responses here, but to use the questions to guide his design exercise. I wonder how well the OP did in three days, starting from scratch...

Andre

[Soundman2020]

I hear you, André! I agree totally. I was intending to reply to where he said "My biggest issue is working out the axial modes. Although i know that you divide...", but I quoted the wrong snippet in my response. If all he is after is a quick way to calculate axials for a room without even understanding what they are, then Bob Gold's will do that for him. But you are right: that's kind of like giving a slide rule to a Kalahari Bushman: not a whole lot of use (until he learns how to use it! )


- Stuart -