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Category Archives: Acoustics

Audyssey XT32 vs. Parametric EQ: A Comparison of Manual vs Automagic Calibrations

Setting the Stage for Battle! Earlier this year Acoustic Frontiers had the opportunity to improve a two channel and home theater system in Tucson, Arizona.  Our client owned a Polk / Onkyo system which incorporated the latest Audyssey XT32 ‘room correction’ algorithms. However he was unhappy with overall sound quality and wanted to know how […]

Building the Acoustic Frontiers Demo Room: Part 1

Let me present to your our latest project – the Acoustic Frontiers demo room! I have been carefully piloting the course to a dedicated demonstration facility for at least 18 months now. This demo room will encapsulate and explain all the things we can do as a company. Here are some of the key details:

  • Dedicated ‘media’ room, supporting a world class two channel listening room and home theater
  • Four power circuits feeding the room – two dedicated to audio (one 20A 120V and one 20A 240V). The 240V is to feed a nice big balancing Torus isolation transformer.
  • Sound isolated using double drywall, Green Glue, isolation clips / hat channel and rubber underlayment
  • Featuring high efficiency, compression driver / constant directivity horn speakers by Procella (we just signed up as a dealer, blog post to follow on these amazing devices)
  • Incorporating at least one and possibly two DEQX HDP-4s for speaker and room correction
  • Highlighting an electrically retractable 4K Seymour Screen Excellence screen
  • 4 subwoofers in a mode cancelling layout
  • Projector in a hush box (hopefully the RED one!)
  • And of course acoustic treatment and final system calibration by our good selves

The Schroeder / Transition Frequency Explained

Brent Butterworth, a writer over at Sound & Vision, has written a very easy to understand explanation of what the ‘Schroeder’ frequency is. The Schroeder or ‘transition’ frequency is a critical concept to understand because it explains a lot about how sound behaves in rooms, how we measure / analyze them and how we treat […]

Four approaches to room acoustic measurement

This article covers the four main ways in which you can measure your room’s acoustics. In decreasing ease of use order these are: Integrated software / hardware packages such as XTZ Room Analyzer and Dayton Audio Omnimic Standalone software packages and your choice of measurement microphone, cabling and soundcard such as Room EQ Wizard Hardware devices such […]