Project Optional. Used for the PDF report header.
Room and frequency band
Layout
Drag a subwoofer or a seat in any view. Arrow keys nudge 10 mm, Shift 100 mm.
Subwoofers
| Sub | x | y | z | Delay (ms) | Gain (dB) | Polarity | Remove |
|---|
Seats
| Seat | x | y | Ear z | Reference | Remove |
|---|
Response at every seat
Every seat, relative to the across-seats average
Uncorrected field: no EQ, no optimiser. A rigid rectangle with typical drywall damping, point subwoofers and point ears. It shows where the room puts peaks and nulls and how placement, delay and gain move them, not a measured level in a furnished room.
Deviation from the reference seat
Seat-to-seat spread
Readouts
Seats on a modal null
Axial modes in the band
| Axis | Modes in band (Hz) |
|---|
How to read this
The chart
Each grey line is a seat. The shaded band is the range between seats. Red is the worst seat, bold is the average, and every curve is relative to it. The dashed markers are the room's axial modes, one colour per axis. The peaks and nulls land on them.
Try
Move the subwoofer: every seat changes. Add a second at the mirror position: the spread falls. Time-align at the reference seat: it rises again. Invert one: the cancellation flips. Lift one to the ceiling: the height modes change.
The Room Resonances Calculator gives the same room's modes and null positions.