Besplatni Inženjerski Alat #216
Konverter razine zvuka
Convert between unweighted sound pressure level (dB SPL) and sound pressure (Pa). Enter a value in either unit and get an instant conversion. Note: A-weighted levels in dB(A) are not directly convertible to Pa.
SPL = 20·log₁₀(p/p₀)dB SPL ↔ PaUnweighted
Results
Sound Pressure
—
dB SPL
—
Sound Pressure
—
Nivo zvučnog pritiska
where p₀ = 20 μPa = 2 × 10⁻⁵ Pa (threshold of hearing)
A Note on dB(A)
This converter works with unweighted sound pressure levels (dB SPL). An A-weighted level, dB(A), applies a frequency-dependent correction curve that approximates human hearing sensitivity. Because the correction varies with frequency, a single dB(A) value cannot be converted to sound pressure in Pa without knowing the frequency spectrum of the sound. Do not enter dB(A) readings into this tool expecting an exact pressure value.
Česte Razine Zvuka
| Level (dB) | Pressure (Pa) | Primjer |
|---|---|---|
| 0 | 0.00002 | Prag čujnosti |
| 30 | 0.00063 | Quiet room |
| 60 | 0.02 | Normalna razgovor |
| 85 | 0.36 | Heavy traffic |
| 94 | 1.0 | 1 Pascal referenca |
| 120 | 20.0 | Pain threshold |
| 140 | 200.0 | Motor mlaza (blizu) |
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