> For the complete documentation index, see [llms.txt](https://docs.acestudio.ai/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.acestudio.ai/project/mixing/effects/room-effect.md).
# Room Effect
The **Room Effect** places AI Voices in a shared physical space, mainly for positioning multiple voices together. It is **not** part of the FX chain and is available on **vocal tracks only** — it sits apart from [Built-in Effects](/project/mixing/effects/built-in-effects.md) and [Third-Party Effects](/project/mixing/effects/third-party-effects.md).
The Room Effect relies on a separately installed component. You're prompted to install it the first time you use it.
### Position voices
At the center of Room Effect, you see the virtual recording space.
Each coloured marker represents one voice.
* Drag a marker to move that voice in the room.
* Distance from the dashed line controls how close that voice is to the mic.
### Choose a room size
Use the control in the top-right corner to switch room size:
* **8 m × 8 m** — Studio room.
* **16 m × 16 m** — Choir hall.
* **30 m × 30 m** — Church.
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