Review of 13 published data sets reporting environmental sound norms.

PTCP = Number of study participants; Access = Availability of sounds for download and/or use; FID = Free identification; CID = Closed-set identification (i.e., a list of possible sounds is provided to participants for selection); RT = Response Time; CT = Categorization; FM = Familiarity; RP = Representativeness; CF = Confidence; AF = Affect; CP = Complexity; AC = Acoustic variables; NR = Not reported. Key to sound categories: H = human generated; A = animal sounds; M = manmade noises; MI = music, musical instruments; N = naturally occurring sounds (e.g., waves breaking, wind blowing); T = pure tones; S = synthesized/artificial sounds. Acoustic variables included spectrally degraded sound in [48]; N = No; Y = YES; N* = the website supporting download of these sounds is currently unavailable. Details for Experiments 2 and 3 by Gygi et al. [46] are not included because the method involved judgment of imagined sounds and not heard sounds. Measurement of physiological responses to sounds have not been included in this table.