Simple Room Calcs

Over at AudioKarma I wrote a guide on how to do a calculation to estimate the octave-band RT60 values for a simple room. That guide follows a spreadsheet called Simple-Room-Calcs.xls, which can be downloaded by clicking here:



I am A Video Game Addict Working Towards the Ultimate High

I love video games so much, but I can’t remember the last time I really got into a video game. It may have been Bad Company 2. But I have watched several versions of my favorite games come and go. That is because I have this addiction under control, after a long, destructive battle. I […]

Life Is A Comical Game of One-Upsmanship.

Between self-replicating molecules.  It started out very simple, then cells were invented, then multi-cell combos, and so on and so forth. It’s reminiscent of a scene from a cartoon where adversaries continue to produce larger and more outrageous weapons from their pockets in rapid alternating succession. Only a lot less rapid. Think on this and you […]

I really enjoyed World’s Greatest Dad

Also I watched GI Joe Rise of Cobra last night and it was all kinds of terrible. I still haven’t decided whether the way they committed larceny against Star Wars was just terrible or worthy of some kind of respect for their brashness. I look forward to the next installation in the series. I don’t […]

Spare the Nerves by Preventing Noise

It is thus possible to decorate for quietness as well as building for the same cardinal hygienic virtue which is too commonly overlooked. The introduction of sound absorbing materials will help, but cannot compensate for the noise telegraphing construction of many houses built without consideration of the fact that human beings, as well as the […]

We Are All Delusional

Every one of us has a separate point of view. They are all different. What’s the justification for calling any one of them “reality”? There is no standard for comparison. Some are more similar than others, but that’s hardly the same thing as right. Reality is whatever you find in common with the person you are […]

At Long Last, The Sock Drawer Has Been Subdued

I regained control of my sock drawer tonight. It has been a struggle but I now have control and I don’t intend to give it up. Sometime last year I embarked on a bold experiment. I had a theory that it would be better to put all clean socks into the drawer unsorted, and save the […]

List of Tapping Machines for Impact Isolation Class Measurement

I am attempting to create the most complete list of acoustic tapping machines for impact isolation class (IIC) testing. Please let me know if you know of any I’m missing. Acoustic Associates Brüel & Kjær 3207 Brüel & Kjær 3204 Norsonic NR277 Norsonic 211A BSWA Tech TM003 Cesva MI005 Lookline EM 50 GeoNoise TM002 01dB Mac001

Notice: “On Four” is the New Standard For Cooperative Efforts

Starting now, the new standard of counting for the purposes of synchronizing ad-hoc human cooperative efforts is “On four.” The previous standard, “On three,” suffered from ineffeciency due to the unfortunate existence of two separate sub-standards, both referred to by the same name. This necessitated clarifying which interpretation of the standard was to be used […]

Dogs and People Are Co-Evolving Towards Symbiosis

Every generation, dogs have a stronger desire to please people. We select against aggressive or disobedient dogs because we usually choose to breed the dogs we like most. Their species is already fairly dependant on us, but would still be able to function alone should we turn all the dogs loose tomorrow. Eventually, though, their natural […]