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Category Archives: Audio design

Dolby Atmos: Dispersion Requirements for Ceiling Speakers

In this blog article we look at the dispersion requirements for ceiling speakers in a Dolby Atmos system. We consider the example of a system with 4 ceiling speakers and two seating rows and show how dispersion requirements change for: Speakers firing straight down vs. angled at the listening area. Different ceiling heights (9’6″, 8’6″ and 7’6″). […]

Ten Speaker Layout Tips for Dolby Atmos, DTS.X & Auro

Dolby Atmos has been a big thing with our client base. Since the format was announced >80% of our theaters have been designed to support Atmos and other next-generation audio formats such as DTS.X and Auro. Here are some of our learnings and recommendations based on these experiences: Ensure there is a clear line of sight […]

Home theater speaker layout – 5.1 and 7.1 recommendations from Dolby, THX and ITU

Where do I put all these speakers in my 5.1 or 7.1 channel home theater? That’s the question we tackle in this article. There are three main organizations that provide guidance on speaker placement. They are THX, Dolby and the International Telecommunications Union (ITU). THX and Dolby guidance is directed principally for movie production and […]

CEA/CEDIA CEB22 – Home Theater Recommended Practice: Audio Design

“CEDIA and its certified Electronic Systems Contractors (ESCs) follow these practices to deliver high value to dedicated home theater environments, helping ensure full performance potential for the equipment and the room.”   The Consumer Electronics Association (CEA) and the Custom Electronics Design and Installation Association (CEDIA) created a partnership in 2009 to create a set […]

THX reference level explained

What is ‘THX Reference Level’? Reference level is a calibrated volume setting used for both movie production (in dubbing stages and post production houses) and reproduction (in screening rooms and theaters). The human hearing system is non-linear, especially in the bass, so having a consistent playback level – a reference – is critical if the […]