Sound Insulation

• room acoustics, calculation of reverberation times
• protection against airborne and footfall sound transmission from other´s living and working areas, DIN 4109, solid construction, wood and other skeleton building methods
• influence of flanking construction elements
• protection against external noise, resulting sound reduction indices
• sound reduction indices from measured values in third or octave bands according to DIN EN ISO 717-1
• airborne sound insulation between areas, DIN EN 12354-1, simplified models, room sketches, input values from cross section analyses, joint damming measures, building sound reduction indices
• Goesele procedure for timber beam floors
• requirements according to DIN 4109, sound control stages according to VDI recommendation 4100
• calculation of noise level ranges according to DIN 18005, road and train services, parking lots, navigation, line and area sound sources, partial sound sources 
• determination of building sound reduction indices according to EN ISO 717-1 (diagram)
• wall development with absorption coefficients for the determination of the reverberation time (diagram)
• standard footfall sound level from periodical measured values, with diagram
• footfall sound protection according to DIN EN 12354-2