roomModes
Solve the eigenmodes of a rectangular room.
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Solve the eigenmodes of a rectangular room.
The identical function that renders /lab/room-modes/{w}x{l}x{h}. Dimensions are in feet and are converted at 0.3048 m/ft. Returns every mode below maxFreq, the three axial fundamentals, mode pile-ups (three or more modes within 5 Hz, capped at 200 Hz because dense modes above the Schroeder crossover are desirable rather than a defect), the widest axial gap below 200 Hz, and Schroeder frequencies at RT60 = 0.3 s and 0.6 s. The full mode list is omitted unless include=modes is passed; counts are always present.
Every result carries provenance.canonicalUrl — the published page for these exact inputs, or the lane hub when they are off the published grid.
Input schema
| Property | Type | Required | Description |
|---|---|---|---|
| width | number | yes | Room width in feet. |
| length | number | yes | Room length in feet. |
| height | number | yes | Ceiling height in feet. |
| maxFreq | number | no | Highest mode frequency to solve for, in Hz. Defaults to 300. Mode count scales with volume × frequency³, so a large room and a high maxFreq together are refused with a 400 once the enumeration would exceed 100,000 modes; the error names the maxFreq that would have worked. |
| include | string | no | Optional heavy block to include, omitted by default. "modes": Every solved mode and the axial subset, with their (nx, ny, nz) orders. |
Raw JSON schema
{
"type": "object",
"properties": {
"width": {
"type": "number",
"minimum": 3,
"maximum": 100,
"description": "Room width in feet."
},
"length": {
"type": "number",
"minimum": 3,
"maximum": 100,
"description": "Room length in feet."
},
"height": {
"type": "number",
"minimum": 3,
"maximum": 40,
"description": "Ceiling height in feet."
},
"maxFreq": {
"type": "number",
"minimum": 20,
"maximum": 1000,
"default": 300,
"description": "Highest mode frequency to solve for, in Hz. Defaults to 300. Mode count scales with volume × frequency³, so a large room and a high maxFreq together are refused with a 400 once the enumeration would exceed 100,000 modes; the error names the maxFreq that would have worked."
},
"include": {
"type": "string",
"enum": [
"modes"
],
"description": "Optional heavy block to include, omitted by default. \"modes\": Every solved mode and the axial subset, with their (nx, ny, nz) orders."
}
},
"required": [
"width",
"length",
"height"
],
"additionalProperties": false
}