Quick Answer
Calculate STC Estimator for Single-Leaf Homogeneous Wall (Empirical Acoustic Transmission Model)
Calculator
Result Interpretation
STC Estimator for Single-Leaf Homogeneous Wall (Empirical Acoustic Transmission Model) Calculator computes Sound Transmission Class in dimensionless using the defined engineering formula and the input values provided.
Worked Example
Verified calculation
Given:
- Surface density = 25
- Frequency = 500
- Loss factor = 0.02
Expected Result:
- Sound Transmission Class = 86.308988302963
Engineering Interpretation:
Under the given input conditions, the calculated result is: Sound Transmission Class = 86.308988302963 dimensionless.
The actual numerical result is computed by the Runtime engine using the persisted tool definition. The values shown here come from automatically validated test cases.
Formula / Method
sound transmission class = 10 * log(2.0 * surface density * frequency / (loss factor * 1000.0)) + 15.0Formula family: formula_acoustics_sound_transmission_class_stc_estimator
Variables
| Symbol | Label | Role | Description |
|---|---|---|---|
| Surface density | Surface density | INPUT | Surface density |
| Frequency | Frequency | INPUT | Frequency |
| Loss factor | Loss factor | INPUT | Loss factor |
| Sound Transmission Class | Sound Transmission Class | OUTPUT | Sound Transmission Class |
Calculation Steps
- Enter the surface density in kg/m^2.
- Enter the frequency in Hz.
- Enter the loss factor in dimensionless.
- Step 1: Compute sound transmission class.
- Read the sound transmission class (dimensionless) from the results.
Engineering Summary
Calculate STC Estimator for Single-Leaf Homogeneous Wall (Empirical Acoustic Transmission Model)
Frequently Asked Questions
What does this calculator calculate?
The STC Estimator for Single-Leaf Homogeneous Wall (Empirical Acoustic Transmission Model) Calculator estimates Sound Transmission Class based on the input parameters you provide
Why is surface density important in this calculation?
surface density is directly proportional to sound transmission class. When you enter surface density in kg/m^2, the calculator uses it in the engineering formula to compute the output
How should I interpret the result sound transmission class?
The calculator outputs sound transmission class in dimensionless. The result is computed directly from the input values using the defined engineering formula
What units should I use for the inputs?
Enter each value in the units shown next to the input field: Surface density (kg/m^2), Frequency (Hz), Loss factor (dimensionless). Make sure all inputs use the specified units for consistent results
What assumptions does this calculator use?
This calculator uses automatically validated engineering formulas. Results are approximate and should be validated against site-specific conditions, applicable codes, and professional engineering judgment
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