Sound files for the measurements of physiological effects of wind turbine noise on sleep

The material consists of sound files used as noise exposure during sleep trials in a laboratory environment. The trials aim was to look at physiological effects during sleep when exposed to wind turbine noise. The sound files are made available mainly for other researchers in the field wanting to replicate the results or use the files in similar studies. There may also be a wider interest for the public to listen to the exposures used in the study. Purpose: Develop audio files for use as exposure during sleep experiments in laboratories The sound files correspond to indoor noise from a wind turbine in a typical Swedish house. The sound files were synthesized using parameters describing the variation in level in different frequency bands extracted from outdoor measurements. The sound files were filtered to get indoor sound using typical facade insulation both with window closed and with a small gap. The sound recordings which the synthetizied files are based on were performed at four different buildings exposed to noise from four single wind turbines (i.e. not wind turbine parks). The files are named as follows: WTN_StrongAM_closed - Strong amplitude modulation (7 - 9 dB) with closed window WTN_StrongAM_gap - Strong amplitude modulation (7 - 9 dB) with window ajar WTN_WeakAM_closed - Weak amplitude modulation (1 - 2 dB) with closed window WTN_WeakAM_gap - Weak amplitude modulation (1 - 2 dB) with window ajar