(In fact, the ratio is a number that begins 1.32472… and carries on forever). It turned out that the ratio 1.325, which gives you the rectangle that creates the Harriss spiral has been written about – it is known as the “ plastic number” – but Harriss could find no previous drawings of the spiral. His first concern was that maybe someone else had had, in fact, drawn the spiral “One thing about mathematical discoveries and mathematical art is that even if the process is completely new there is no guarantee that someone else has not already explored it.” “It’s more difficult to make something mathematically satisfying that people haven’t seen before.” “It’s not hard to make something that no one has seen before,” he said. Its the gold standard of ratios A golden ratio, also known as a golden section, golden mean, and divine proportion is related to fibonaccis sequence of nu. But he was particularly delighted because he arrived at the spiral using a very simple mathematical process. Not ideal, but at least not evenly divisible.Harriss was overjoyed when he first saw the spiral because it was aesthetically appealing – one of his primary aims was to draw branching spirals like you might find in Islamic art or the work of Gustav Klimt. Dividing the length and width by 8, we can see that the ratio of this room is 1 x 1.06 x 2.06. 16.5 feet long by 8.5 feet wide with an 8-foot ceiling. For example, take the room this article is being written in. An existing room is hard to make bigger, but it may be possible to make the room slightly smaller by adding a false wall on one or two sides, or even a false ceiling. Of course, it is possible to adjust a room’s dimensions – at least to some degree. This is why learning a bit about smart acoustic treatment is so crucial. Unfortunately, most existing rooms are not built to these specs, and are often built with evenly divisible ratios, which is a headache for amateur and professional acousticians alike. It’s not common to have that much space, so some of the other ratios are often used, for example 8 feet by 9.12 feet by 11.12 feet – a much more normal size. Many rooms built to spec opt for 10-foot ceilings instead, which would yield a room 16 feet wide by 25.6 feet wide when using the classic ratio. So for example, a room built to the classic golden ratio would be 8 feet high by 12.8 feet wide by 20.48 feet long. 1 x 1.60 x 2.56 – The classic “golden” acoustic ratio.Īny of these room ratios will prove much better for minimizing acoustic issues, and in some cases could nearly eliminate the need for acoustic treatment – depending on your usage.įor the most part, we consider the fixed number the height of the ceiling, which is normally 8 feet.It turns there are more than one set of ratios that have proven useful to acoustics experts over the years, besides the classic golden ratio – they’re all related to the golden ratio – here are a few: Knowing these ratios can help you to look for the best room in a house to put your studio or rehearsal space and are especially useful if you’re building a new space and can control the dimensions of the room. It's the gold standard of ratios A golden ratio, also known as a golden section, golden mean, and divine proportion is related to fibonacci's sequence of nu. Instead, this ratio is related to set of ratios that tend to lead to the best acoustic response in a room, with a minimum of acoustic interference anomalies such as comb filtering, nodes, peaks, or dips. The “golden ratio” in sound – more specifically in acoustics, doesn’t require you to understand the mathematical term and all its implications. In mathematics, if two numbers have the same ratio as the ratio of their sum to the larger of the two numbers, they’re said to be in the “golden ratio.” If that sounds like Greek, don’t worry.
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