Smart Spaces / Sound, explored
Bass Lab.
A little play. A better feel for bass. Move the subs, rearrange the seating and explore phase in this fun, interactive guide. Every room is different, so use it to learn the principles rather than predict your room’s exact sound.
Interactive bass room
3–10m · whole metres only · height fixed at 2.6m
Add up to four couches. Drag one into the room, or tap to choose a quantity. Select a couch to rotate, swap or remove it.
Visual assumption: 20% energy loss per m² of couch footprint. Not measured foam data.
Frequency in hertz
Phase changes the balance between two subs. A single sub’s phase does not change this map.
Drag to move · select a couch for actions · arrow keys move 10cm
Move the couch or subwoofer and compare all three seats.
What the model can—and cannot—tell you
Calculated: a steady-state, damped room-mode approximation for a rectangular 5m × 7m × 2.6m room. Equal-output point sources, sound speed 343m/s, ear height 0.85m, source height 0.3m and assumed modal Q of 8. Each source’s phase is applied before the pressures are added.
Relative, not calibrated SPL. The colour scale is fixed from −24 to +6dB against a canonical single-sub, unfurnished-room reference for this room and frequency. It does not rescale when you move a sub, add furniture or change phase. A null is not a successful result just because every seat is equally quiet.
Furniture loss is illustrative. Each couch creates a local dip using an assumed 20% energy loss per reference square metre of footprint, with a soft 0.35m spatial fade outside its shape. The pressure multiplier is 0.8 raised to half the effective area in square metres. The same adjustment is applied to the heatmap and seat readings, and moves and rotates with the couch. This replaces the previous uniform furniture damping in the lab. It is not a measured average for medium-density foam, a frequency-dependent material model, or a prediction of sound behind a couch. Use real measurements for installation decisions.
Waves are illustrative: synchronized ripples at 100× slower than sound, with spacing λ = 343 / frequency and first-order wall reflections. Phase sliders affect the pressure map, not the decorative ripple timing. This tool is silent.