Estimate of Noise Level Reduction (COMPLETE) Project Number: 004 COMPLETE Category: Noise Annual Reports 2015 ASCENT 004A 2015 ASCENT 004B 2016 ASCENT 004A 2016 ASCENT 004B Final Report 4A Final Report 4B ParticipantsGeorgia Institute of TechnologyUniversity of WashingtonLead InvestigatorsRobert DoughertyKenneth CunefareProgram ManagersHua HePublicationsMeasuring Noise Level Reduction Using an Artificial Noise SourceImproved Method for Estimating Noise Level Reduction of Residential Houses