Estimate the reverberation radius from source directivity, room volume and reverberation time: r_c ≈ 0.057·√(Q·V / RT60).
输入房间体积、混响时间与指向性因子,估算临界距离。
| Item | Formula / Note | Source / Standard |
|---|---|---|
| Critical distance | Dc = 0.057·sqrt(V / T60) (SI), where direct and reverberant energies are equal | Peutz critical-distance relation (room acoustics) |
布置会议发言人或音箱时,判断直达声何时被混响声淹没。