Listening room workspace

Sountra

Room Acoustic Planner

Draw the room, place the speakers, and compare layouts before you move the furniture.

A dim listening room with two speakers and a cyan path toward the seat
Geometry first. The numbers come from the room you enter.

On the canvas

What the plan shows

A measured floor plan

Set width, length, and height, then drag speakers, a seat, furniture, and panels on a 2D canvas.

Geometric sound paths

Direct lines and first wall reflections use room coordinates, with travel time at 343 meters per second.

Layouts you can compare

Save more than one arrangement in the same room and read the numeric difference before you commit.

A printed summary

Export a PDF of the active plan, including distances, reflection delays, and treatment coverage.

From the app

Three views of one room

Sound Paths
Sound Paths
Room Plan
Room Plan
Treatment
Treatment
  • A bookshelf speaker in navy light
  • Overhead of a rectangular studio floor
  • An acoustic panel with a cyan bounce mark

Legal

Sountra does not collect personal data. Room names, dimensions, speaker positions, layouts, and settings you create are stored on your device. The app does not require an account, and it does not send those plans to a server.

Travel times use a fixed speed of sound, 343 meters per second. Reflection paths and reverberation figures are calculated on the device from the geometry and material choices you enter. They are estimates for planning, not recordings from a microphone.

If you export a PDF or a project file, that file stays where you save it. This policy is effective October 15, 2026. Questions about it can go to the address in Support.