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The sound pressure p changes with 1 / r of the distance. So, if we double the distance, we reduce the sound pressure by a ratio of 2 and the sound intensity by a ratio of 4. In other words, we reduce the sound level by 6 dB. If we increase r by a ratio of 10, we decrease the level by 20 dB. Damping of sound level with distance - decibel dB damping calculation calculator distance versus sound reduction free field loss - decrease drop fall in sound over distance versus dB sound at different distances microphone calculator distance drop ratio -
Calculation method of absorption of sound by the atmosphere air damping dissipation absorbtion - Attenuation of sound during propagation outdoors outdoor
Room acoustics and how to treat a room is a HUGE topic, this page only a scratches the surface of Room acoustics as there are so many different variables that effect sound. Only the main topics will be discussed here and should form a good starting point for learning what you want in this topic. This page concentrates mainly on improving the sound of a room, NOT sound proofing a room which is completly different. By sound proofing a room, your not only keep the sound out, you also keep sound in the room which can cause problems such as large RT60 and slap echos. FAQ on Room Acoustics and Treatment.
Above is a rhombicosidodecahedron, one of the Archimedean solids. It is "uniform on its vertices" , which means that every vertex is equivalent. At each vertex there is a pentagon, a square, a triangle, and another square. There are 60 vertices. Above is the dual to the rhombicosidodecahedron. It has 60 faces. Playing Card Polyhedral Construction
How to build a paper geodesic dome model
Absorption coefficients of building materials and finishes RT60 alpha coefficient acoustic absorbing material absorbtion
Henning Larsen Architects' new Harpa Concert & Conference Centre was conceived of as part of Reykjavik's harbour-development project; photo © Osbjørn Jacobsen Given the digital times in which we live, there's something reassuring about the fact that intelligent, relevant and inspiring performing-arts venues are still managing to be designed and built. In all their glorious materiality, they cock a cultural snook at the ever-growing disembodied consumption of online and downloaded music, dance and other art forms. High Performance Spaces: concert halls and opera houses that hit the right note
The word diorama [ˌdaɪəˈrɑːmə] can either refer to a 19th-century mobile theatre device, or, in modern usage, a three-dimensional full-size or miniature model, sometimes enclosed in a glass showcase for a museum. Dioramas are often built by hobbyists as part of related hobbies such as military vehicle modeling, miniature figure modeling, or aircraft modeling. Etymology The word "diorama" originated in 1823 as a type of camera device, from the French in 1822. The word literally means "through that which is seen", from the Greek di- "through" + orama "that which is seen, a sight". Diorama
Mapping Your Room Through Sight and Sound
TrueRTA Audio Spectrum Analyzer Software TrueRTA's Quick Sweep employs a short digitally generated sweep (chirp) to measure the frequency response of electronic and acoustical systems. Below is the measured response of an E-MU 0404 USB audio interface at 96 kHz sampling frequency. TrueRTA Quick Sweep WITHOUT Sound Card Calibration (self test of E-MU 0404, dark gray background)
Revit Reverberation Time Calculator Demo
RT60 Acoustic Reverb Calculator
Mass Form Model - Berkeley Model - Howard Models
Contour Models - Kingston Contour Model - Howard Models
Wassily Kandinsky. Yellow-Red-Blue
BAUHAUS & MUSIC « ADRIANA SASSOON The Bauhaus was initially supported and funded by the Weimar Government, but in 1925, the support was withdrawn and the School moved to Dessau. In Dessau, the Bauhaus used many of its ‘modernist’ principles to design functional housing for the Government.
Kandinsky: Composition IV
Yuko Nishimura - Optical paper folding Wednesday, 16 August 2006 The simple act of folding paper gives rise to sculptural forms that with particular lighting can produce architectural forms and geometric patterns of subtle contrast. I’m impressed with paper-folding’s extreme technological economy – requiring no specialist equipment other than a pair of functional hands. Yuko Nishimura produces complex optical paper works and space-structures with undulating folds and creases.
Excerpted from "Kandinsky: Compositions", by Magdalena Dabrowski Kandinsky and Music "The term "Composition" can imply a metaphor with music. Kandinsky was fascinated by music's emotional power. Because music expresses itself through sound and time, it allows the listener a freedom of imagination, interpretation, and emotional response that is not based on the literal or the descriptive, but rather on the abstract quality that painting, still dependent on representing the visible world, could not provide. "Kandinsky's special understanding of the affinities between painting and music and his belief in the Gesamtkunstwerk, or the total work of art, came forth in his text "On Stage Composition," his play "Yellow Sound," and his portfolio of prose poems and prints Klange (Sounds, 1913). Wassily Kandinsky
Bill Mack- World's Preeminent Relief Sculptor