Trend of sound absorption research: A bibliometric analysis

Abstract

The growing world population and urbanization have worsened noise pollution, driving the development of sound absorption (SA) research across the globe. This study aims to analyse the SA global research trends and discover the opportunities for future development or collaboration using systematic bibliometric analysis. A total of 2970 articles since 1913 were systematically retrieved. Results reveal that the most productive journal had taken 10.3 % of the total publications. A high correlation r = 0.87 was found between the number of co-authorship and the h-index of a scholar. China has the highest number of publications 55.3 % and most research focused on porous materials. Present findings could be helpful to further develop SA from a global level perspective.