Building

The building module contains functions related to building acoustics.

acoustics.building.rw_curve(tl)

Calculate the curve of \(Rw\) from a NumPy array tl with third octave data between 100 Hz and 3.15 kHz.

Parameters:tl – Transmission Loss

acoustics.building.rw(tl)

Calculate \(R_W\) from a NumPy array tl with third octave data between 100 Hz and 3.15 kHz.

Parameters:tl – Transmission Loss

acoustics.building.rw_c(tl)

Calculate \(R_W + C\) from a NumPy array tl with third octave data between 100 Hz and 3.15 kHz.

Parameters:tl – Transmission Loss

acoustics.building.rw_ctr(tl)

Calculate \(R_W + C_{tr}\) from a NumPy array tl with third octave data between 100 Hz and 3.15 kHz.

Parameters:tl – Transmission Loss

acoustics.building.stc_curve(tl)

Calculate the Sound Transmission Class (STC) curve from a NumPy array tl with third octave data between 125 Hz and 4 kHz.

Parameters:tl – Transmission Loss

acoustics.building.stc(tl)

Calculate the Sound Transmission Class (STC) from a NumPy array tl with third octave data between 125 Hz and 4 kHz.

Parameters:tl – Transmission Loss

acoustics.building.mass_law(freq, vol_density, thickness, theta=0, c=343, rho0=1.225)

Calculate transmission loss according to mass law.

Parameters:

• freq (float or NumPy array) – Frequency of interest in Hz.
• vol_density (float) – Volumetric density of material in [kg/m^3].
• thickness (float) – Thickness of wall.
• theta (float) – Angle of incidence in degrees. Default value is 0 (normal incidence).
• c (float) – Speed of sound in [m/s].
• rho0 (float) – Density of air in kg/m^3.