Categories
UK Delivery

 UK mainland 
1-3 working days delivery for in stock items (unless stated otherwise on the product page); may be longer for rural postcodes. For more information
click here

Diffractal Diffusor

Diffractal Diffusor
Product Code: GRG DIF
Availability: Contact Us POA
Download Description: For Registered Users Only
Price: Request Quote
Qty:        

RPG Diffractal Diffusor

Features
  • Amplitude modulated QRD
  • Recording studios
  • Post production studios
  • Practice rooms
  • Home theatres
  • Mastering studios
Benefits
  • Wide range of wood finishes
  • Can be surface or flush mounted
  • 230mm deep
  • Attractive finish

RPG DFR Fractal GenerationIn an effort to provide full spectrum sound diffusion in a single integrated diffusor, the self similarity property of fractals was combined with the uniform scattering property of the number theoretic reflection phase grating to produce the Diffractal.

The bandwidth of a QRD 734 is limited at high frequencies by the well width and at low frequencies by the maximum depth. Additionally, wide area coverage with periodic arrays focuses energy into certain diffraction directions. A full spectrum diffusor offering wide area coverage is needed.

The Diffractal is the first diffusing fractal. It consists of nested self-similar scaled diffusors, each of which covers a specific frequency range and offers wide area coverage without lobing effects. A second generation Diffractal (DFR72) contains two nested QRD®s, thus forming a diffusor within a diffusor. Each diffusor provides uniform scattering over a specific range of frequencies so that the effective bandwidth is extended. The DFR72 can be nested within a larger low frequency diffusor to provide wide area coverage, extended low frequency diffusivity, and also minimum lobing associated with periodic arrays. This third generation Diffractal® (DFR73) offers low, mid, and high frequency diffusion over an extended bandwidth, limited only by the depth available.

 

Absorption

Diffusors essentially scatter sound, but absorption may occur from wave resonances within the wells when they are narrow and deep and viscous losses due to pressure gradient induced air particle flows between adjacent wells. The Diffractal provides high frequency diffusion without adding additional absorption by replacing the mid frequency QRD wells with nested reduced scale high frequency QRDs.

Diffusion

The nested diffusors comprising the Diffractal extend the high frequency diffusive performance beyond that of the QRD 734. The graph illustrates how the Diffractal mid frequency and high frequency nested components essentially boot strap the uniform diffusion from 500 Hz to 20 kHz. The diffusion coefficient is also compared to a flat reflective panel which exhibits decreasing diffusivity with increasing frequency

Write a review

Your Name:


Your Review: Note: HTML is not translated!

Rating: Bad           Good

Enter the code in the box below:



Custom Audio Designs - Soundproofing and Acoustics © 2017
View Mobile / Standard