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Sabine Rt60

Calculates room reverberation time using the Sabine formula RT60 = 0.161 V / A, where A is the equivalent absorption area. The template uses explicit floor, wall, and ceiling areas and absorption coefficients for a deterministic room acoustics calculation.

inputs

7 fields

context

2 archetypes

engine

with-tool

outputs

3 scored fields

contract fields

Parameter Map

7 inputs to 3 scored outputs

  • room_volume_m3

    float

    Room volume

    10 to 100000m3

  • floor_area_m2

    float

    Floor surface area

    5 to 10000m2

  • floor_absorption

    float

    Floor absorption coefficient

    0.01 to 1

  • wall_area_m2

    float

    Total wall surface area

    5 to 30000m2

  • wall_absorption

    float

    Wall absorption coefficient

    0.01 to 1

  • ceiling_area_m2

    float

    Ceiling surface area

    5 to 10000m2

  • ceiling_absorption

    float

    Ceiling absorption coefficient

    0.01 to 1
equivalent_absorption_area_m2tol 0.03

Equivalent absorption area

average_absorption_coefficienttol 0.03

Area-weighted average absorption coefficient

rt60_stol 0.03

Sabine reverberation time

visibility contract

Difficulty Ladder

all_giveneasy

All parameters given for a small room

all fields visible
all_givenmedium

All parameters given across small and large acoustic rooms

all fields visible
all_givenhard

All parameters given for large-volume reverberation checks

all fields visible

scenario bands

Archetype Atlas

small_meeting_room

2 contexts

Small meeting room with moderate finishes

room_volume_m340 to 250
floor_area_m215 to 80
floor_absorption0.08 to 0.35
wall_area_m240 to 250

office-meeting-room / clinical-consult-room

large_hall

2 contexts

Large hall or concourse acoustic volume

room_volume_m31000 to 50000
floor_area_m2300 to 8000
floor_absorption0.03 to 0.25
wall_area_m2600 to 20000

station-concourse / school-assembly-hall

rendered task

Generation Preview

station-concourse-large-hall-preview

difficulty
hard
visibility
all_given
archetype
large_hall
site context
station-concourse
instruction excerptsabine-rt60_calc.py

visible fields

  • room_volume_m31000 to 50000 m3
  • floor_area_m2300 to 8000 m2
  • floor_absorption0.03 to 0.25
  • wall_area_m2600 to 20000 m2
  • wall_absorption0.03 to 0.35
  • ceiling_area_m2300 to 8000 m2
  • ceiling_absorption0.05 to 0.7

withheld schema

equivalent_absorption_area_m2average_absorption_coefficientrt60_s
Large hall or concourse acoustic volume. station-concourse. Required outputs: equivalent_absorption_area_m2, average_absorption_coefficient, rt60_s