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Good Hearing?
A typical person with good hearing can hear from about 20Hz to 20kHz (the audio bandwidth). A person's voice will usually range from 500Hz to 2kHz...more
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Sound Insulation
Two parameters describe sound insulation; Dw and Rw. Dw is the insulation between rooms. Rw is the lab-tested insulation of a wall/floor...more
Part L1B
Conservation of fuel and power in Existing Dwellings
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In County C
SAP Extension Calc in Cambridgeshire, SAP Extension Calc in Carmarthenshire, SAP Extension Calc in Central, SAP Extension Calc in Channel Islands, SAP Extension Calc in Cheshire, SAP Extension Calc in Clackmannanshire, SAP Extension Calc in Conwy County, SAP Extension Calc in Cornwall, SAP Extension Calc in County Antrim, SAP Extension Calc in County Armagh, SAP Extension Calc in County Down, SAP Extension Calc in County Fermanagh, SAP Extension Calc in County Londonderry, SAP Extension Calc in County Tyrone, SAP Extension Calc in Cumbria,