Acoustic Power Calculator — सूत्र
## Sound Power Level
Sound power is the total acoustic energy emitted by a source per second, independent of distance or room.
### Formula
**Lw = 10 log10(W / W0)**
- *W* = sound power (watts)
- *W0* = 10^-12 W (reference)
Sound power is an intrinsic property of the source. Intensity at distance r in free field: I = W / (4 pi r^2).
Sound power is the total acoustic energy emitted by a source per second, independent of distance or room.
### Formula
**Lw = 10 log10(W / W0)**
- *W* = sound power (watts)
- *W0* = 10^-12 W (reference)
Sound power is an intrinsic property of the source. Intensity at distance r in free field: I = W / (4 pi r^2).
हल किया गया उदाहरण
A loudspeaker emitting 0.01 W.
- Lw = 10 log10(0.01 / 1e-12)
- Lw = 10 log10(1e10)
- Lw = 10 * 10 = 100 dB
- Intensity at 1 m = 0.01 / (4 pi) = 7.96e-4 W/m2