This browser utility executes three-parameter proportional formulas for acoustic engineering planning. Rather than computing true acoustic sound pressure level attenuation across physical distances via the free-field inverse square law ($\Delta L = 20 \log_{10}(d_1 / d_2)$ dB with directivity factors $Q$), the interface evaluates the Engineering Suite proportional ratio model.

### Calculation Pipeline The interface calculates three output metrics directly from user inputs:

- **Primary Dimension / Load ($V_1$):** Baseline numerical magnitude (defaults to 100). - **Operating Coefficient ($V_2$):** System multiplier coefficient (defaults to 20). - **Safety / Rate Factor ($V_3$):** Divisor rate parameter, clamped to a minimum of 0.01 (defaults to 5).

**Evaluation Formulas:** - **Primary Scaled Output:** Computed as $(V_1 \times V_2) / \max(0.01, V_3)$, indicating the primary sized score. - **Geometric Mean Root:** Computed as $\sqrt{\max(0, V_1 \times V_2)}$, representing the square root product. - **Input Load Percentage:** Computed as $\min(100, \max(0, [V_1 / (V_1 + V_2)] \times 100))$, expressing the baseline input share.

### Worked Numeric Example An acoustics planner inputs the following test values: - Primary Dimension / Load ($V_1$): 260 - Operating Coefficient ($V_2$): 25 - Safety / Rate Factor ($V_3$): 10

**Step-by-Step Evaluation:** 1. **Primary Scaled Output:** $(260 \times 25) / 10 = 6,500 / 10 = 650.00$. 2. **Geometric Mean Root:** $\sqrt{260 \times 25} = \sqrt{6,500} \approx 80.62$. 3. **Input Load Percentage:** $[260 / (260 + 25)] \times 100 = (260 / 285) \times 100 \approx 91.23\%$.

### Privacy and Client-Side Execution All calculations execute directly inside your browser tab using JavaScript floating-point operations. No sound level readings, speaker specifications, or distances are transmitted across any network.