DE
Acoustics workbench

Room Acoustics Calculator

Find a useful starting point for your listening position, subwoofer and reverberation – directly from your room dimensions.

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Results: Room Volume 50.0 m³, RT60 (estimated) 0.38 s, Listening position start 1.90 m.

Results

Your room at a glance

Good range

A useful starting point for the listening position is 1.90 m from the front wall and centred in the room.

Room Volume
50.0 m³
RT60 (estimated)
0.38 s
First length mode
34.3 Hz
Placement

Top view of your room

A visual starting point. Fine-tune the listening position in small steps and compare by ear.

Top view of your roomTop view showing the front wall, speakers, suggested listening position and three subwoofer starting points.Front wallSpeakers123Listening positionWidth · 4.0 mLength · 5.0 m
Listening position Subwoofer starting point
01

Listening position start

1.90 m

Start centred at 38% of the room length. Moving only 10–20 cm can noticeably change bass nulls.

02

Reverberation Time (RT60)

0.38 s

The rough estimate is in a useful range. Fine-tune the listening and speaker positions next.

03

Height fundamental

68.6 Hz

This frequency is particularly affected by floor and ceiling. Use it as a clue during measurement and placement.

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Subwoofer Placement

Choose a starting point. The marker in the top view updates immediately.

Subwoofer Placement
For fine-tuning Room modes and technical details

This section contains the complete mode calculation. Axial modes are usually strongest; densely populated frequency bands deserve particular attention when measuring.

Length 34.3 Hz Fundamental mode
Width 42.9 Hz Fundamental mode
Height 68.6 Hz Fundamental mode

801 calculated modes between 20 and 500 Hz 96 logarithmic frequency bands

Room Modes ChartComplete density distribution of all calculated axial, tangential and oblique room modes between 20 and 500 hertz in logarithmic frequency bands.203050801001502003005001 Axial · 34.2–35.4 Hz1 Axial · 41.8–43.2 Hz1 Tangential · 54.7–56.6 Hz2 Axial · 66.9–69.2 Hz1 Tangential · 76.5–79.1 Hz2 Tangential · 79.1–81.8 Hz1 Axial · 84.6–87.4 Hz1 Oblique · 87.4–90.4 Hz1 Tangential · 90.4–93.5 Hz1 Tangential · 96.7–100.0 Hz1 Axial · 100.0–103.4 Hz1 Oblique · 103.4–106.9 Hz2 Tangential · 106.9–110.6 Hz1 Tangential · 110.6–114.4 Hz1 Oblique · 114.4–118.3 Hz1 Tangential · 122.3–126.5 Hz1 Axial · 126.5–130.8 Hz1 Oblique · 126.5–130.8 Hz2 Tangential · 130.8–135.2 Hz1 Oblique · 130.8–135.2 Hz2 Axial · 135.2–139.8 Hz3 Tangential · 139.8–144.6 Hz2 Tangential · 144.6–149.5 Hz1 Oblique · 144.6–149.5 Hz2 Tangential · 149.5–154.6 Hz2 Oblique · 149.5–154.6 Hz2 Oblique · 154.6–159.9 Hz3 Tangential · 159.9–165.4 Hz1 Oblique · 159.9–165.4 Hz1 Oblique · 165.4–171.0 Hz2 Axial · 171.0–176.8 Hz3 Tangential · 171.0–176.8 Hz3 Oblique · 171.0–176.8 Hz1 Oblique · 176.8–182.9 Hz5 Tangential · 182.9–189.1 Hz1 Oblique · 182.9–189.1 Hz2 Tangential · 189.1–195.5 Hz3 Oblique · 189.1–195.5 Hz1 Tangential · 195.5–202.2 Hz4 Oblique · 195.5–202.2 Hz2 Axial · 202.2–209.1 Hz1 Tangential · 202.2–209.1 Hz1 Oblique · 202.2–209.1 Hz1 Axial · 209.1–216.2 Hz3 Tangential · 209.1–216.2 Hz4 Oblique · 209.1–216.2 Hz8 Tangential · 216.2–223.6 Hz3 Oblique · 216.2–223.6 Hz3 Tangential · 223.6–231.2 Hz6 Oblique · 223.6–231.2 Hz1 Tangential · 231.2–239.1 Hz6 Oblique · 231.2–239.1 Hz1 Axial · 239.1–247.3 Hz4 Tangential · 239.1–247.3 Hz3 Oblique · 239.1–247.3 Hz6 Tangential · 247.3–255.7 Hz8 Oblique · 247.3–255.7 Hz1 Axial · 255.7–264.4 Hz1 Tangential · 255.7–264.4 Hz8 Oblique · 255.7–264.4 Hz6 Tangential · 264.4–273.4 Hz3 Oblique · 264.4–273.4 Hz2 Axial · 273.4–282.8 Hz6 Tangential · 273.4–282.8 Hz11 Oblique · 273.4–282.8 Hz7 Tangential · 282.8–292.4 Hz8 Oblique · 282.8–292.4 Hz1 Axial · 292.4–302.4 Hz5 Tangential · 292.4–302.4 Hz11 Oblique · 292.4–302.4 Hz1 Axial · 302.4–312.7 Hz8 Tangential · 302.4–312.7 Hz14 Oblique · 302.4–312.7 Hz5 Tangential · 312.7–323.3 Hz11 Oblique · 312.7–323.3 Hz7 Tangential · 323.3–334.4 Hz15 Oblique · 323.3–334.4 Hz3 Axial · 334.4–345.8 Hz9 Tangential · 334.4–345.8 Hz16 Oblique · 334.4–345.8 Hz10 Tangential · 345.8–357.6 Hz20 Oblique · 345.8–357.6 Hz11 Tangential · 357.6–369.8 Hz17 Oblique · 357.6–369.8 Hz1 Axial · 369.8–382.4 Hz5 Tangential · 369.8–382.4 Hz27 Oblique · 369.8–382.4 Hz1 Axial · 382.4–395.4 Hz11 Tangential · 382.4–395.4 Hz24 Oblique · 382.4–395.4 Hz12 Tangential · 395.4–408.9 Hz29 Oblique · 395.4–408.9 Hz2 Axial · 408.9–422.8 Hz14 Tangential · 408.9–422.8 Hz28 Oblique · 408.9–422.8 Hz1 Axial · 422.8–437.2 Hz13 Tangential · 422.8–437.2 Hz37 Oblique · 422.8–437.2 Hz1 Axial · 437.2–452.2 Hz14 Tangential · 437.2–452.2 Hz39 Oblique · 437.2–452.2 Hz15 Tangential · 452.2–467.6 Hz41 Oblique · 452.2–467.6 Hz3 Axial · 467.6–483.5 Hz14 Tangential · 467.6–483.5 Hz44 Oblique · 467.6–483.5 Hz22 Tangential · 483.5–500.0 Hz57 Oblique · 483.5–500.0 Hz

First calculated room modes

  1. 1 34.3 Hz Axial (1, 0, 0)
  2. 2 42.9 Hz Axial (0, 1, 0)
  3. 3 54.9 Hz Tangential (1, 1, 0)
  4. 4 68.6 Hz Axial (0, 0, 1)
  5. 5 68.6 Hz Axial (2, 0, 0)
  6. 6 76.7 Hz Tangential (1, 0, 1)
  7. 7 80.9 Hz Tangential (0, 1, 1)
  8. 8 80.9 Hz Tangential (2, 1, 0)
  9. 9 85.8 Hz Axial (0, 2, 0)
  10. 10 87.9 Hz Oblique (1, 1, 1)
  11. 11 92.4 Hz Tangential (1, 2, 0)
  12. 12 97.0 Hz Tangential (2, 0, 1)

Reproducible calculation contracts: sabine-average-v1 frequency-derived-axis-bounds-v1