ondacorp.com: Acoustic Tables Of Reference Extensive table of acoustic properties, expanded from the late Alan Selfridge's 1985 paper. www.ondacorp.com/tecref_acoustictable.shtml resource.npl.co.uk: Npl Acoustics: Calculation Of Absorption Of Sound By The Atmosphere Computes the attenuation coefficient according to ISO 9613-1 as a function of frequency, temperature, humidity and pressure. resource.npl.co.uk/acoustics/techguides/absorption/ Site Listings ondacorp.com: Acoustic Tables Of Reference Extensive table of acoustic properties, expanded from the late Alan Selfridge's 1985 paper. www.ondacorp.com/tecref_acoustictable.shtml resource.npl.co.uk: Npl Acoustics: Calculation Of Absorption Of Sound By The Atmosphere Computes the attenuation coefficient according to ISO 9613-1 as a function of frequency, temperature, humidity and pressure. resource.npl.co.uk/acoustics/techguides/absorption/ Add Url or Add Site to Submit Site to the Acoustic Material Properties Directory |