Table shows acoustic impedance of various mediums such as air, water or marble.
Generates sound with specified frequency and waveform type (sine, triangle etc.).
- Mass law: double wall
Calculator finds out sound reduction in decibels (dB) for double layer wall with given density, thickness and air gap width using so-called mass law equation.
- Mass law: single wall
Calculator finds out sound reduction in decibels (dB) for single layer wall with given density and thickness using so-called mass law equation.
Calculator finds out sound wave at given distance from source with given sound pressure level.
Table shows frequencies of music notes in twelve-tone equal tempered system (12-TET). Both basic tone and up to three harmonic frequencies are presented.
Table shows properties of common periodic signals (sine, square, triangle etc.) such as absolute mean value, effective value or shape factor.
- Sound absorption coefficients
Table shows sound absorption coefficient for different building materials.
Table shows spectral contour used to measure sound insulation in various standards such as STC or Rw.
Table shows examples of sound sources with various intensity level given in decibels.
- Sound reduction index (SRI)
Table shows sound reduction indexes (SRI) for common materials.
- Sound transmission class (STC)
Table shows sound transmission classs (STC) for common building materials.
Table shows speed of sound within medium compound of various materials such as air, steel or water.
Calculator finds out sound reflection coefficient between two mediums e.g. air-concrete or steel-steel