Skyline

Overview
Interfering reflections can be controlled by absorption or diffusion. In small rooms, it is often desirable to control interfering reflections and provide an ambient sound field using diffusion instead of absorption. When the room’s surfaces are relatively close to the listener, a very efficient diffusing surface is needed. To solve this problem, RPG® patented the Skyline. It is the industry’s first — and most efficient — omnidirectional primitive root number theory two dimensional diffusor. The Skyline® scatters incident sound uniformly so that the acoustic glare in all directions is minimized.

Diffusion
The uniformity of diffusion is characterised by the standard deviation of the 1/3 octave polar response for a given angle of incidence. For each of the 37 angles of incidence, 37 backscattering impulse response measurements are made at 5° increments between 0° and 180°. The Diffusion Coefficient is the mean standard deviation for all angles of incidence, normalised to the standard deviation of a delta function (1 equals ideal diffusion). The data illustrate the exceptional uniformity of diffusion above the diffraction limit (565 Hz = 1130 ft/sec/2’), which is related to the 600 mm dimension of the panel. The Diffusion Coefficient of a flat reflective panel is shown for comparison.

Absorption
The solid expanded polystyrene core of the Skyline provides useful low frequency absorption.

Skyline

Interfering reflections can be controlled by absorption or diffusion. In small rooms, it is often desirable to control interfering reflections and provide an ambient sound field using diffusion instead of absorption. When the room’s surfaces are relatively close to the listener, a very efficient diffusing surface is needed. To solve this problem, RPG® patented the Skyline®. It is the industry’s first — and most efficient — omnidirectional primitive root number theory two dimensional diffusor. The Skyline® scatters incident sound uniformly so that the acoustic glare in all directions is minimized.

Problem
Small rooms like project studios need a very efficient surface to diffuse interfering rear wall reflections and provide a diffuse sound field.

Solution
To solve this problem, RPG utilised advanced primitive root number theory to design the most powerful and aesthetic two dimensional omnidirectional diffusing surface in the acoustical industry. Interfering reflections can be controlled by absorption or diffusion. In small rooms, it is often desirable to control interfering reflections and provide an ambient sound field using diffusion instead of absorption. When the room’s surfaces are relatively close to the listener, a very efficient diffusing surface is needed. To solve this problem, RPG patented the Skyline®. It is the industry’s first — and most efficient — omnidirectional primitive root number theory two dimensional diffusor. The Skyline scatters incident sound uniformly so that the acoustic glare in all directions is minimized.

Features

  • Patented optimized primitive root reflection phase grating
  • 156 distinct phase blocks
  • Suppressed specular scattering
  • Universal mounting design
  • Portable, lightweight construction
  • Unique acoustic sculpture
  • Lightweight and easy to install with RPG’s impaling clip.
  • All components are Class A Fire Rated.

Options:
600 x 600 x 140
600 x 600 x 180

Finish Choices:
Natural or RAL colours

Acoustic Data
The uniformity of diffusion is characterized by the standard deviation of the 1/3 octave polar response for a given angle of incidence.
For each of the 37 angles of incidence,37 backscattering impulse response measurements are made at 5° increments between 0° and 180°.The Diffusion Coefficient is the mean standard deviation for all angles of incidence, normalized to the standard deviation of a delta function (1 equals ideal diffusion).The data illustrate the exceptional uniformity of diffusion above the diffraction limit (565 Hz = 1130 ft/sec/2’),which is related to the 610mm dimension of the panel. The Diffusion Coefficient of a flat reflective panel is shown for comparison. The solid expanded polystyrene core of the Skyline® provides useful low frequency absorption.

The Skyline is very easy to install on walls or ceilings. For permanent mounting you may wish to also apply construction adhesive. Skylines can also be inserted into a T-bar ceiling grid.

Mounting:
Aluminium battens
Direct mounting into ceiling grid