CEDIA/CTA-RP22 — immersive audio design for private cinemas

CEDIA and the Consumer Technology Association identify RP22 as an immersive audio design recommended practice. CTA lists the document as published in September 2023 and describes its subject as audio design for private listening experiences. CEDIA explains that its four performance levels provide a framework for discussing the experience a system should deliver. Source records: https://www.cta.tech/standards/cediacta-rp22/ and https://cedia.org/en-us/smart-home-professionals/advocacy/standards-best-practices/immersive-audio-design-excellence/.

Begin with the listening brief

For a private cinema, the useful starting question is which seats must share the intended experience. A room used by one listener and a room used by a family across several seats create different design constraints. Give the designer the room dimensions, proposed seating, intended uses and architectural restrictions before selecting the equipment. Ask which decisions remain open and which would be expensive to change once the room is finished.

Agree a performance level and its evidence

The four RP22 performance levels let a designer describe an audio ambition in a more structured way than a list of expensive products. Naming a level in a proposal is only the beginning of a project discussion. Ask the designer to identify the applicable requirements, the assumptions behind the design and how the completed system will be assessed. A generic label such as premium room does not establish that a particular level has been achieved.

Coordinate the room and the system

Our practical planning advice is to review the seating layout, loudspeaker positions, available equipment space and acoustic treatment together. Share ceiling limitations, concealed-installation requirements and the finishes proposed by the architect. If an architectural decision changes, return it to the audio designer before procurement. A documented change is easier to assess than a late substitution whose effects nobody has reviewed.

Keep design, commissioning and calibration distinct

An audio design defines the intended system and its assumptions. Installation delivers that design on site. Commissioning checks the completed work, while calibration adjusts the system within its capabilities. The commissioning scope should identify the checks, measurement methods, listening positions, records and acceptance criteria agreed for the project. Neither an equipment list nor a reference to RP22 alone is a measurement report.

RP22 should not be used as the attribution for projector brightness, screen luminance or ambient-light targets. Those belong to a separately specified video and room-lighting scope. Likewise, this article does not publish a substitute numerical table for the recommended practice. Technical requirements should be checked against the source document and the agreed project design by the responsible specialist.

What an owner can request before signing off

Request a short design brief that states the intended listening experience, the seats covered, the room constraints and the outstanding decisions. Ask for an equipment proposal that explains how it serves that brief, and a written commissioning plan that identifies what evidence will be supplied. Keep approved changes alongside those records so a future service engineer can understand why the installed system differs from an earlier drawing.

Where an existing cinema is being reviewed, begin with its available drawings, equipment records and the symptoms the owner wants resolved. The specialist can then determine an appropriate investigation and calibration scope. Access, room condition, system complexity and the required evidence determine the programme; this article makes no fixed-duration promise or claim that a particular room has achieved an RP22 level.