Distance attenuation db
distance_attenuation_db
Receiver path distance attenuation using the task-owned point-source approximation
Scores if within ±3% of the reference value.
LIVEdataset aec-bench@releasetasks 552models 18disciplines 5last submission … · built …
mechanicalwith-tool
Acoustic Receiver Impact Package
Calculates source-bound acoustic and vibration receiver-impact metrics from a deterministic SSC-12 task-owned source pack. The template aggregates octave-band source sound power, receiver distance attenuation, mitigation insertion loss, A-weighted logarithmic summation, background addition, night criterion margin, and vibration isolation transmissibility for a compact generated task instance.
with-tool: The model is given an executable Python calculator script.
How this task is generated
One template produces many comparable benchmark tasks while keeping the scoring contract fixed.
01
Template
The reusable contract shown on this page.
02
Scenario
An archetype and site context are sampled.
03
Difficulty tier
Inputs may be hidden at harder tiers.
04
Task prompt
The model responds with the declared outputs.
Parameters
Inputs the model receives, and the outputs it is scored on.
Inputs
18 inputs
Always given
Included directly in every task prompt.
Show 18 inputs
Source lw 63 hz db
source_lw_63_hz_db
SRC-SSC12-001 63 Hz source sound power level
91 dB LwSource lw 125 hz db
source_lw_125_hz_db
SRC-SSC12-001 125 Hz source sound power level
96 dB LwSource lw 250 hz db
source_lw_250_hz_db
SRC-SSC12-001 250 Hz source sound power level
99 dB LwSource lw 500 hz db
source_lw_500_hz_db
SRC-SSC12-001 500 Hz source sound power level
101 dB LwSource lw 1000 hz db
source_lw_1000_hz_db
SRC-SSC12-001 1000 Hz source sound power level
100 dB LwSource lw 2000 hz db
source_lw_2000_hz_db
SRC-SSC12-001 2000 Hz source sound power level
97 dB LwSource lw 4000 hz db
source_lw_4000_hz_db
SRC-SSC12-001 4000 Hz source sound power level
91 dB LwSource lw 8000 hz db
source_lw_8000_hz_db
SRC-SSC12-001 8000 Hz source sound power level
84 dB LwReceiver distance
receiver_distance_m
Distance from SRC-SSC12-001 to RCV-12-NIGHT-01
75 mMitigation insertion loss
mitigation_insertion_loss_db
MIT-12-BARRIER-01 insertion loss applied to each receiver octave band
15 dBBackground sound level
background_sound_level_dba
Existing night background level at RCV-12-NIGHT-01
42 dBANight noise criterion
night_noise_criterion_dba
CRIT-12-NIGHT night receiver criterion
45 dBAForcing frequency
forcing_frequency_hz
Equipment forcing frequency for ISO-12-MOUNT-01 isolation check
29.5 HzIsolator natural frequency
isolator_natural_frequency_hz
ISO-12-MOUNT-01 natural frequency
8 HzDamping ratio
damping_ratio
ISO-12-MOUNT-01 damping ratio
0.08Source vibration velocity
source_vibration_velocity_mm_s
Equipment source vibration velocity before isolation and path loss
3.2 mm/sStructural path factor
structural_path_factor
Task-owned structural path factor from ISO-12-MOUNT-01 to RCV-12-NIGHT-01
0.82Vibration velocity criterion
vibration_velocity_criterion_mm_s
Receiver vibration velocity criterion for this source pack
0.3 mm/s
Scored outputs
12 outputs
Receiver linear level db
receiver_linear_level_db
Logarithmic sum of receiver octave-band levels before A-weighting
Scores if within ±3% of the reference value.
Receiver a weighted level dba
receiver_a_weighted_level_dba
Logarithmic sum of receiver octave-band levels after A-weighting
Scores if within ±3% of the reference value.
Combined ambient level dba
combined_ambient_level_dba
Logarithmic sum of receiver A-weighted level and existing background
Scores if within ±3% of the reference value.
Increase over background db
increase_over_background_db
Combined ambient level minus existing background level
Scores if within ±3% of the reference value.
Criterion margin db
criterion_margin_db
Night receiver criterion minus combined ambient level
Scores if within ±3% of the reference value.
Dominant octave hz
dominant_octave_hz
Octave band with the highest A-weighted receiver band level
Scores if within ±3% of the reference value.
Frequency ratio
frequency_ratio
Forcing frequency divided by isolator natural frequency
Scores if within ±3% of the reference value.
Vibration transmissibility
vibration_transmissibility
Damped isolation transmissibility for ISO-12-MOUNT-01
Scores if within ±3% of the reference value.
Receiver vibration velocity mm s
receiver_vibration_velocity_mm_s
Receiver vibration velocity after isolation and structural path factor
Scores if within ±3% of the reference value.
Vibration margin mm s
vibration_margin_mm_s
Receiver vibration criterion minus receiver vibration velocity
Scores if within ±3% of the reference value.
Overall pass score
overall_pass_score
Pass score for the task-owned acoustic and vibration checks
Scores if within ±3% of the reference value.
Difficulty
Each template is sampled at three tiers. Harder tiers may hide inputs, forcing the model to infer them from the scenario description.
All inputs remain visible at every tier
For this template, difficulty scales through parameter and scenario ranges rather than hidden information.
- easy:
- All source-pack values given for the SSC-12 acoustic receiver impact package
- medium:
- All source-pack values given for the SSC-12 acoustic receiver impact package
- hard:
- All source-pack values given for the SSC-12 acoustic receiver impact package
Task bundle
The exact instruction and parameter contract used to generate this task, pinned to the published library source.
/workspace
- instruction.md
- acoustic-receiver-impact-package_calc.py
Teal lines show Jinja input conditions, not task visibility policy. A line renders only when that input or tool is visible.
1You are an acoustic and vibration engineer checking a task-owned synthetic SSC-12 receiver-impact package for one night-time equipment operating case.2 3Use only the task-owned synthetic source pack values shown below for numeric grading. External FHWA TNM, FTA noise/vibration assessment, SoundPLAN, and CadnaA routes shape the workflow context only; they are not extra data sources for this instance.4 5## Scene6 7- Operating case: `OP-SSC12-NIGHT-001`8- Acoustic source: `SRC-SSC12-001`9- Equipment schedule row: `EQ-SSC12-BLOWER-01`10- Receiver: `RCV-12-NIGHT-01`11- Receiver criterion: `CRIT-12-NIGHT`12- Mitigation object: `MIT-12-BARRIER-01`13- Isolation mount: `ISO-12-MOUNT-01`14- Impact memo: `MEMO-12-ACOUSTIC-01`15 16## Acoustic Source And Receiver Path17 18| Item | Value |19|------|-------|20| 63 Hz source sound power | {{ source_lw_63_hz_db }} dB Lw |21| 125 Hz source sound power | {{ source_lw_125_hz_db }} dB Lw |22| 250 Hz source sound power | {{ source_lw_250_hz_db }} dB Lw |23| 500 Hz source sound power | {{ source_lw_500_hz_db }} dB Lw |24| 1000 Hz source sound power | {{ source_lw_1000_hz_db }} dB Lw |25| 2000 Hz source sound power | {{ source_lw_2000_hz_db }} dB Lw |26| 4000 Hz source sound power | {{ source_lw_4000_hz_db }} dB Lw |27| 8000 Hz source sound power | {{ source_lw_8000_hz_db }} dB Lw |28| Receiver distance | {{ receiver_distance_m }} m |29| MIT-12-BARRIER-01 insertion loss | {{ mitigation_insertion_loss_db }} dB |30| Existing background level | {{ background_sound_level_dba }} dBA |31| Night criterion | {{ night_noise_criterion_dba }} dBA |32 33Acoustic checks:34 35- Use octave bands 63, 125, 250, 500, 1000, 2000, 4000, and 8000 Hz.36- Distance attenuation equals `20 x log10(receiver_distance_m) + 11`.37- Receiver band level equals source sound power minus distance attenuation minus mitigation insertion loss.38- Apply A-weighting corrections of `[-26.2, -16.1, -8.6, -3.2, 0.0, 1.2, 1.0, -1.1]` dB to the receiver band levels.39- Receiver linear level and receiver A-weighted level are logarithmic sums of their band levels.40- Combined ambient level is the logarithmic sum of receiver A-weighted level and background level.41- Increase over background equals combined ambient level minus background level.42- Criterion margin equals night criterion minus combined ambient level.43- Dominant octave is the octave band with the highest A-weighted receiver band level.44 45## Vibration Isolation Path46 47| Item | Value |48|------|-------|49| Forcing frequency | {{ forcing_frequency_hz }} Hz |50| ISO-12-MOUNT-01 natural frequency | {{ isolator_natural_frequency_hz }} Hz |51| Damping ratio | {{ damping_ratio }} |52| Source vibration velocity | {{ source_vibration_velocity_mm_s }} mm/s |53| Structural path factor | {{ structural_path_factor }} |54| Receiver vibration criterion | {{ vibration_velocity_criterion_mm_s }} mm/s |55 56Vibration checks:57 58- Frequency ratio equals forcing frequency divided by isolator natural frequency.59- Damped transmissibility equals `sqrt(1 + (2 x damping_ratio x frequency_ratio)^2) / sqrt((1 - frequency_ratio^2)^2 + (2 x damping_ratio x frequency_ratio)^2)`.60- Receiver vibration velocity equals source vibration velocity times transmissibility times structural path factor.61- Vibration margin equals vibration criterion minus receiver vibration velocity.62- Overall pass score is `1.0` only when both the noise criterion margin and vibration margin are non-negative; otherwise it is `0.0`.63 64## Output Format65 66Write a compact memo to `/workspace/output.md`. Include a source-boundary statement that this is a task-owned synthetic source pack. Explain the calculations briefly, preserve the object IDs above, and state whether the baseline source pack passes the current docs-only checks.67 68Do not claim authority approval, accepted project evidence, software export validity, full standards compliance, executable real source-pack parsing, generated benchmark readiness, or benchmark readiness.69 70Include a fenced JSON block with exactly these numeric keys:71 72```json73{74 "distance_attenuation_db": <numeric_value>,75 "receiver_linear_level_db": <numeric_value>,76 "receiver_a_weighted_level_dba": <numeric_value>,77 "combined_ambient_level_dba": <numeric_value>,78 "increase_over_background_db": <numeric_value>,79 "criterion_margin_db": <numeric_value>,80 "dominant_octave_hz": <numeric_value>,81 "frequency_ratio": <numeric_value>,82 "vibration_transmissibility": <numeric_value>,83 "receiver_vibration_velocity_mm_s": <numeric_value>,84 "vibration_margin_mm_s": <numeric_value>,85 "overall_pass_score": <numeric_value>86}87```88 Scenario archetypes
Each generated task is drawn from one of these realistic scenario bands.
Site contexts ground each scenario in a real locale the model can use to infer hidden values.
Ssc12 night receiver case
ssc12_night_receiver_case
Night equipment receiver impact package with octave-band source, mitigation, and isolation data
night-equipment-impactreceiver-mitigation-check
Parameter ranges
- source_lw_63_hz_db
- 91
- source_lw_125_hz_db
- 96
- source_lw_250_hz_db
- 99
- source_lw_500_hz_db
- 101
- source_lw_1000_hz_db
- 100
- source_lw_2000_hz_db
- 97
- source_lw_4000_hz_db
- 91
- source_lw_8000_hz_db
- 84
- receiver_distance_m
- 75
- mitigation_insertion_loss_db
- 15
- background_sound_level_dba
- 42
- night_noise_criterion_dba
- 45
- forcing_frequency_hz
- 29.5
- isolator_natural_frequency_hz
- 8
- damping_ratio
- 0.08
- source_vibration_velocity_mm_s
- 3.2
- structural_path_factor
- 0.82
- vibration_velocity_criterion_mm_s
- 0.3
Example task
night-equipment-impact-ssc12-night-receiver-case-preview — hard difficulty, all inputs given.
Night equipment receiver impact package with octave-band source, mitigation, and isolation data. night-equipment-impact. Required outputs: distance_attenuation_db, receiver_linear_level_db, receiver_a_weighted_level_dba, combined_ambient_level_dba, increase_over_background_db, criterion_margin_db
The model sees
Scenario context and visible inputs.
- source_lw_63_hz_db
- 91 to 91 dB Lw
- source_lw_125_hz_db
- 96 to 96 dB Lw
- source_lw_250_hz_db
- 99 to 99 dB Lw
- source_lw_500_hz_db
- 101 to 101 dB Lw
- source_lw_1000_hz_db
- 100 to 100 dB Lw
- source_lw_2000_hz_db
- 97 to 97 dB Lw
- source_lw_4000_hz_db
- 91 to 91 dB Lw
- source_lw_8000_hz_db
- 84 to 84 dB Lw
- receiver_distance_m
- 75 to 75 m
- mitigation_insertion_loss_db
- 15 to 15 dB
- background_sound_level_dba
- 42 to 42 dBA
- night_noise_criterion_dba
- 45 to 45 dBA
- forcing_frequency_hz
- 29.5 to 29.5 Hz
- isolator_natural_frequency_hz
- 8 to 8 Hz
- damping_ratio
- 0.08 to 0.08
- source_vibration_velocity_mm_s
- 3.2 to 3.2 mm/s
- structural_path_factor
- 0.82 to 0.82
- vibration_velocity_criterion_mm_s
- 0.3 to 0.3 mm/s
Executable tool: acoustic-receiver-impact-package_calc.py
The model must infer
Inputs withheld at this difficulty.
Nothing. All inputs are supplied.
The model must produce
The scored JSON answer schema.
{
"distance_attenuation_db": <number>,
"receiver_linear_level_db": <number>,
"receiver_a_weighted_level_dba": <number>,
"combined_ambient_level_dba": <number>,
"increase_over_background_db": <number>,
"criterion_margin_db": <number>,
"dominant_octave_hz": <number>,
"frequency_ratio": <number>,
"vibration_transmissibility": <number>,
"receiver_vibration_velocity_mm_s": <number>,
"vibration_margin_mm_s": <number>,
"overall_pass_score": <number>
}- distance_attenuation_db · scored within ±3%
- receiver_linear_level_db · scored within ±3%
- receiver_a_weighted_level_dba · scored within ±3%
- combined_ambient_level_dba · scored within ±3%
- increase_over_background_db · scored within ±3%
- criterion_margin_db · scored within ±3%
- dominant_octave_hz · scored within ±3%
- frequency_ratio · scored within ±3%
- vibration_transmissibility · scored within ±3%
- receiver_vibration_velocity_mm_s · scored within ±3%
- vibration_margin_mm_s · scored within ±3%
- overall_pass_score · scored within ±3%