TY - JOUR
T1 - Evaluation of wind farm noise amplitude modulation synthesis quality
AU - Nguyen, Duc Phuc
AU - Hansen, Kristy
AU - Zajamsek, Branko
AU - Catcheside, Peter
PY - 2020/9
Y1 - 2020/9
N2 - Wind farm noise amplitude modulation (WFNAM) is a major contributor to annoyance and could cause sleep disturbance. In laboratory listening experiments assessing its annoyance and sleep disturbance potential, WFNAM stimuli are commonly synthesised and can thus suffer from a lack of ecological validity. Here, five stimuli synthesis methods were compared with measured noise in terms of their perceived similarity. An ABX discrimination listening test and one-third octave band spectra were used for evaluation of the aural and visual similarity, respectively, between the synthesised and measured noise spectra. The results showed that synthesising WFNAM using a simple method can be ecologically valid as listeners could not accurately differentiate between measured and synthesised WFNAM. However, time varying features of WFNAM do play a small but significant role in human perception and therefore hearing test evaluation of synthesis is recommended for obtaining the most ecologically valid synthesised WFNAM.
AB - Wind farm noise amplitude modulation (WFNAM) is a major contributor to annoyance and could cause sleep disturbance. In laboratory listening experiments assessing its annoyance and sleep disturbance potential, WFNAM stimuli are commonly synthesised and can thus suffer from a lack of ecological validity. Here, five stimuli synthesis methods were compared with measured noise in terms of their perceived similarity. An ABX discrimination listening test and one-third octave band spectra were used for evaluation of the aural and visual similarity, respectively, between the synthesised and measured noise spectra. The results showed that synthesising WFNAM using a simple method can be ecologically valid as listeners could not accurately differentiate between measured and synthesised WFNAM. However, time varying features of WFNAM do play a small but significant role in human perception and therefore hearing test evaluation of synthesis is recommended for obtaining the most ecologically valid synthesised WFNAM.
KW - ABX listening test
KW - Amplitude modulation
KW - Synthesised noise
KW - Tonal noise
KW - Wind farm noise
UR - http://www.scopus.com/inward/record.url?scp=85082650364&partnerID=8YFLogxK
UR - http://purl.org/au-research/grants/ARC/DP120102185
UR - http://purl.org/au-research/grants/ARC/FT120100510
UR - http://purl.org/au-research/grants/ARC/DE180100022
UR - http://purl.org/au-research/grants/NHMRC/1113571
U2 - 10.1016/j.apacoust.2020.107349
DO - 10.1016/j.apacoust.2020.107349
M3 - Article
AN - SCOPUS:85082650364
SN - 0003-682X
VL - 166
JO - APPLIED ACOUSTICS
JF - APPLIED ACOUSTICS
M1 - 107349
ER -