Free Acoustic Calculators — SoundPLAN Asia

Free online tools for quick acoustic calculations.

Available Calculators

• Decibel addition — Add multiple noise sources (logarithmic addition)
• Noise dose — Calculate daily noise exposure (Lex,8h)
• Distance attenuation — Point and line source propagation
• Hearing protection — Required HPD attenuation (SNR, HML, octave methods)

Explore SoundPLAN software for full noise mapping projects.