Compliance and guest experience answer different questions. A project should meet the requirements that apply to it, while the operator and design team also agree what conversation, music and atmosphere should feel like in use.
A project needs to satisfy the requirements that apply to its building, location and use. The operator also needs a practical brief for conversation, music, staff control and changes through service. Meeting a documented requirement does not remove the need to review that intended experience.
Be specific about the requirement. Approved Document E is guidance for defined building types and elements in England, not a universal restaurant conversational-comfort specification. Formal acoustic assessment, sound insulation, environmental noise and statutory reporting belong to the relevant specialist scope.
SDS develops the audio system and the acoustic considerations that inform it. Where CLI is relevant, it is a proprietary observational framework alongside conventional measurement. It is not a regulatory pass/fail tool, a neurological diagnostic or proof that occupants will become fatigued within a fixed hour.
For a project review, bring the applicable reports, room uses, plans, finishes and operating needs. Agree who is responsible for each assessment and what the audio commission will deliver. Then review the finished space against both its documented requirements and the intended use, without promising that one score captures every aspect of comfort.
Source: GOV.UK, Approved Document E
Source: SDS, The Cognitive Load Index: Scope and status
Sources
Selected work
Bisushima
Architectural audio consultancy. Pequod Acoustics custom specification. Architecture by Ben Adams Architects.
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