Soundman2020 - Studio Design Forum

Your list of usefull documents is great. A suggested addition is Schultz. It provides great information on perforated panels
This is of particular interest to people wanting to retain high end ambience in a space (and are not terrified of mathematics). It still has some pretty drawings and diagrams. It goes on where Dantonio stops.

I am not certain if you have it so here it is again.

I had the wrong title and corrected it

Thanks, Andre. That's another good book. One of the things I do like about it, is the many practical examples he gives, and the simple explanations... for those who don't like the math.

- Stuart -

Bert mentioned Olson in the Long thread. It is a fantastic physics text. Sound has not changed in over 70 years.

Thank you for the reminder Bert

Cool! That's one I didn't have yet. Thanks Andre and Bert! Now I have some fun bedtime reading!

- Stuart -

Glad you enjoy it. Another classic is Acoustics by Beranek. First published in 1954 then reprinted 1996. Not a new edition, REPRINTED!

Another classic is Acoustics by Beranek.

The one and only! Still a great book, even after all these years. Some things don't change much... And basic acoustic theory is one of those. We might be able to tweak and refine and improve with modern tools, but the basic underlying stuff still holds true, and Beranek is one of the classics for that.

- Stuart -

Introduction to Laminated Glass Interlayers

A British government department has produced this PDF which explains the different laminated glass interlayers, what types there are and what applications they are most suited to. In particular, Polyvinyl Butryl (PVB) can be modified to achieve a range of structural properties, impact resistance and acoustic performance.

Starlight wrote:Introduction to Laminated Glass Interlayers

A British government department has produced this PDF which explains the different laminated glass interlayers, what types there are and what applications they are most suited to. In particular, Polyvinyl Butryl (PVB) can be modified to achieve a range of structural properties, impact resistance and acoustic performance.

Fantastic! Thank you!

Starlight wrote:Introduction to Laminated Glass Interlayers

A British government department has produced this PDF which explains the different laminated glass interlayers, what types there are and what applications they are most suited to. In particular, Polyvinyl Butryl (PVB) can be modified to achieve a range of structural properties, impact resistance and acoustic performance.

Very interesting! I just learned some new stuff I didn't know about laminated glass manufacture. Thanks!

- Stuart -

Continuing in the spirit of Starlight's post, here's the UK government "Domestic Ventilation Compliance Guide" from 2010. In many ways it is also a "howto" document and very useful in that capacity. It certainly helped me avoid a couple of detailed mistakes in my design, such as this gem;

"Perforated insulated flexi duct, used to minimise airborne acoustic transmission, should not be used between the fan unit and external discharge terminal to prevent condensation occurring within the insulation material."

Cheers,
Jennifer

I have not seen an upload in a week or so. A classic before flush mounting and still apparent in Griffin speakers

Avare wrote:Source of the post I have not seen an upload in a week or so.

I know! I've been sort of tied up fighting spammer wars here... for some reason the forum became the target of a very persistent and even vindictive spammer, apparently from the Ukraine or Russia (that's where he attacked from mostly). Every time I blocked him in one way, he'd find another way, even down to sending private messages... hundreds of fake new members (now deleted), many more hundreds of spam messages (also now deleted). It kept me on my toes for many days, but thankfully he seems to be fully suppressed now... Hopefully! It was good, though: It forced me to update some security stuff on the forum, and implement some new anti-spam measures... and there's more stuff to come, that I'll be adding shortly. Mostly behind the scenes. But it sure did distract me from other things on the forum, and from other stuff too!

So thanks for adding new document. That's an "oldie but goldie". Some good stuff in there on speaker cabinet shapes. And to think all of that was know and documented 70 years ago.... yet even today, lots of people don't know about it... (even some so-called experts, who should!).



(You must be reading my mind, Andre: I was just preparing a new article on speakers... to be posted shortly. )

- Stuart -

(You must be reading my mind, Andre: I was just preparing a new article on speakers... to be posted shortly. )

Done! Now available....

The equilateral triangle myth explained...

- Stuart -

I was reading the calibration thread and the section on microphones and it reminded me of Bruel's semi-autobiographical piece attached.

So what reminded me of it? Stuart's reference to the Beyerdynamic MM1 at around $300 being high end. Bruel and Kjaer mics are are world class measurement microphones and BSWA makes mics at one third price that Bruel refers to. The price range is $600 vs $1800 for these units. Like a Rolls-Royce for only $150,000.

Enjoy!

It has been over a week. One the informal standards that is hinted at in standards is a rising low end with a decreasing high end. One of the earliest references to this and its origins is in the attached Bruel and Kjaer document.