Adding Scent to a Home Theater: A Guide for AV Integrators

Short answer: a home theater scent system adds a synchronized scent layer to the room without touching the picture. With Olorama BASIC, an Apple TV feeds the Immersion Controller PRO over HDMI, the controller passes 4K video straight through to the TV or projector, and one or more scent generators release the right scent at the right moment of the film. No programming is required.

This guide is for integrators and designers who already deliver home cinema, residential AV and automation, and want to know what adding digital scent technology involves: what goes in the rack, what goes on the network, how many generators a room needs and what to tell the client.

What a home theater scent system is (and what it is not)

Digital scent technology means releasing scents under software control, in sync with content. In a home theater we call the functional result scent simulation: the room smells of what is on screen, scene by scene, following a scent timeline created for the film.

It is not a diffuser that scents the room continuously. Each scent is triggered and removed on cue, and Olorama's cold-air technology does not heat the essences, so they do not degrade, leave no residue and do not need to be cleared between scenes.

Where it fits in the rack: Apple TV as the source

Olorama BASIC is designed around the Apple TV. The signal chain is short:

• Apple TV is the source and runs the streaming apps (Apple TV, Disney+, HBO and Netflix).
• Olorama Immersion Controller PRO sits between the Apple TV and the display on HDMI. It performs a 4K pass-through, so the video reaches the TV or projector without loss of quality.
• Local network: the controller connects by Ethernet or Wi-Fi and communicates with the scent generators over UDP.
• Scent generator(s): placed in the room, each with 10 replaceable scent cartridges.

The controller identifies the film, downloads its scent timeline and works autonomously, so there is nothing for the integrator to program or for the client to operate.

If the client's system is not built around an Apple TV, this product is not the right fit, and it is better to say so at the proposal stage.

One generator or several?

For most rooms, one 10-scent generator is all you need. It covers a room of up to 30 m², and 10 scents are enough for most films.

Add a second generator only if the client wants more scents: two generators give 20 scents, and a 30-scent configuration is also available. For larger rooms, the set can be duplicated, which covers twice the space. All generators communicate with the Immersion Controller PRO over the same local network.

Installation checklist for integrators

• HDMI path: Apple TV to controller, controller to TV or projector. Plan the controller position in the rack like any other HDMI device.
• Network: Ethernet is preferable in a dedicated cinema room; Wi-Fi is supported. The controller and the generators must be on the same local network.
• Generator placement: the generators are separate units in the room, connected by network. Power supplies and cables are included in the kit.
• Self-installable: the kit includes the cables needed, so the installation does not require special tools.
• Commissioning: check that the picture passes through at full quality and that the controller recognizes a test film.

Designing the scent experience

A palette of 10 scents is enough for most films, because the scents are designed to be combined and sequenced. Two practical criteria help:

• Be selective. Each cartridge provides up to about 90 activations depending on the intensity chosen, so timing scents on the moments that matter makes the experience stronger and the cartridges last longer.
• Match intensity to the room. The same scent at lower intensity gives more activations and a more subtle effect.

For clients who want more, the catalog includes more than 50 films ready to be experienced, and AI-based software lets them create the scent timeline for their own films.

What to tell the client

• The picture and sound stay exactly as they are; the scent layer is added alongside.
• Cartridges are consumables and are replaced when empty.
• The system includes a 2-year warranty.
• It requires an Apple TV as the source.

Frequently asked questions

Can you add scent to an existing home theater?

Yes. A scent system such as Olorama BASIC sits alongside the existing AV chain: an Apple TV feeds the Olorama Immersion Controller PRO over HDMI, the controller passes the 4K video through to the TV or projector, and one or more scent generators are placed in the room. The cables needed are included.

What does a home theater scent system need to work?

An Apple TV, a local network (Ethernet or Wi-Fi), the Immersion Controller PRO and at least one Olorama scent generator. The system is designed for use with Apple TV and works with the Apple TV, Disney+, HBO and Netflix apps.

Does the scent system reduce picture quality?

No. The Immersion Controller PRO performs a 4K pass-through: it reads the information needed to trigger the scents and lets the video signal go through to the TV or projector without loss of quality.

Does it need programming or a control system?

No. The Immersion Controller PRO identifies the film, downloads its scent timeline and works autonomously. The controller communicates with the scent generators over UDP on the local network.

How large a room does the scent system cover, and when are more generators needed?

One 10-scent generator covers a room of up to 30 m², which is enough for most home theaters. A second generator is only needed if the client wants more scents: two generators give 20 scents, and a 30-scent configuration is also available. For larger rooms, the set can be duplicated, which covers twice the space.

How long does a scent cartridge last?

Each cartridge provides up to about 90 activations, depending on the intensity chosen for each scent. Cartridges are replaceable consumables.

Do I need to create a scent track for each film?

No. More than 50 films are ready to be experienced: the Immersion Controller PRO identifies the film and downloads its scent timeline automatically, with no programming. For other films, Olorama provides AI-based software to create the scent timeline.

Next step

See the full specification of Olorama BASIC – 10 Scents, explore our movies and videos with smells, or read the professional scent generator guide. If you are an integrator and want to discuss a project, contact us.

For the background of home cinema with scent, see our earlier article on scent in home theaters.