Direct answer
Atmos speakers should be placed by angle relative to the listening area, with clear separation between the listener-level bed and the height layer. They should not simply be distributed evenly wherever joists leave space. The design must account for the main seats, ceiling height and slope, speaker dispersion, obstructions, and whether speakers are in-ceiling, on-ceiling, or upward-firing modules. Upward-firing designs depend on a flat, reflective ceiling; Dolby says they generally work best with ceilings roughly 7.5 to 14 feet high. Direct-radiating overhead speakers provide more predictable results when construction permits.
Mark positions from the actual seated ear location and verify the manufacturer's coverage before cutting. Dolby's speaker-setup guide supplies layout diagrams, but final placement should be checked against the room rather than copied from a generic plan.
Sources and technical references
Use the organizations responsible for a product, platform or standard to confirm current specifications and compatibility.
How this answer was prepared
Camelback Smart Homes publishes this FAQ library for homeowners, design professionals, builders and property teams comparing integrated technology. Answers begin with the practical conclusion, then explain the factors that can change it.
Limitations: This is general educational information, not a site-specific design, quote, code determination or compatibility guarantee. Final requirements depend on the property, construction, infrastructure, equipment versions and project goals.