3D Room Modes Acoustic Visualizer

3D Acoustic Room Modes

Interactive volumetric visualization of standing waves.

Red Cloud: High Pressure (+)
Blue Cloud: Low Pressure (-)
Transparency indicates nodes.

Room Dimensions (m)

Mode Orders

1
0
0

Calculated Frequency

-- Hz

--

👆Touch Drag to Rotate | 🤏Pinch to Zoom

Length (X)
Height (Y)
Width (Z)

User Guide: Room Modes Visualizer

This web application is an educational and technical tool designed for visualize standing waves in a rectangular space. It allows sound engineers, musicians, and acoustics students to understand how bass frequencies behave in a specific room, showing the areas of high and low sound pressure.

1. What is this tool used for?

"Room modes" are natural resonances that occur in any enclosed room. These resonances cause certain bass notes to sound much louder (peaks) or almost completely disappear (nulls) depending on where you stand.

This app helps you to:

  • Identify problematic frequencies: Calculate at what Hz these resonances will occur based on the size of your room.

  • Visualize sound pressure: See in 3D where energy accumulates (corners, walls, center) to know where to place acoustic panels or where to avoid putting your mixing chair.

  • Understanding acoustic theory: Observe the difference between axial, tangential, and oblique modes.

2. How to use the application (Step by step)

The interface is divided into a control panel on the left (or at the top on mobile devices) and an interactive 3D display.


Step 1: Enter the Room Dimensions

In the section "Room Dimensions (m)"Enter your room measurements in meters:

  • Length (X): The length of the room (depth).

  • Width (Z): The width of the room.

  • Height (Y): The height of the ceiling.

Tip: Measure the distances from hard wall to hard wall (not including baseboards or acoustic foam).


Step 2: Select the Mode Orders

In the section "Mode Orders"You define which harmonic or "mode" you want to visualize. The values "n", "m" Y "p" represent the X, Z and Y axes respectively:

  • Axial Modes (the strongest): Put a value of 1 (or 2, 3...) in a only one box and leave the others at 0 (e.g., 1-0-0).

  • Tangential Modes: Put values in two boxes (e.g., 1-1-0).

  • Oblique Modes: Put values in the three boxes (e.g., 1-1-1).


Step 3: Interpret the Frequency

Below the controls you will see "Calculated Frequency".

  • This number (in Hz) is the exact frequency at which the room will resonate with the setting you just entered.


Step 4: Interact with the 3D Visualization

The central cube represents your room. The colored "clouds" show the sound pressure:

  • 🔴 Red Cloud: High Positive Pressure (+).

  • 🔵 Blue Cloud: Low Negative Pressure (-).

  • ⚪ Transparency: Nodes (silence or neutral pressure zones).


Navigation controls:

  • Rotate: Click and drag the mouse (or swipe your finger on mobile).

  • Zoom: Use the mouse wheel (scroll) or the "pinch" gesture on mobile devices.

3. Practical Use Cases

  1. Subwoofer Positioning: If you visualize the first axial mode (1-0-0) of your length, you'll see red pressure on the front wall and blue on the back. If you sit in the center (transparent), you'll be in a "null" position and won't hear those bass frequencies correctly.

  2. Acoustic Treatment: When visualizing the modes, you'll notice that the corners (where three surfaces meet) tend to have high pressure in almost all modes. This visually confirms why "bass traps" are most effective in the corners.