Mapping 74 years in acoustic analysis of voice disorders: A bibliometric review and future research directions
Abstract
Purpose: This paper conducts a bibliometric analysis to identify and examine the strengths, gaps, and trends in research on acoustic voice assessment for voice disorders.
Methods: A bibliometric analysis was performed on journal articles about voice disorders and acoustic voice assessment in English, Spanish, and Portuguese using seven indexed databases. The analyzed bibliometric parameters included publication year, authors, institutions, countries, journals, subject areas, and keywords. VOSviewer software was used for keyword co-occurrence analysis and authorships network analysis. The initial search yielded 6532 publications, with 1253 relevant papers after screening (1951-2024).
Results: Publications in acoustic voice assessment had 74 years of exponential growth (25 % published after 2021). The publishing journals covered 80 categories and subjects. Artificial Intelligence, though recent, was among the top journal subjects. Health conditions like dementia, Alzheimer's, Amyotrophic lateral sclerosis, and depression were underassessed compared to Parkinson's. The literature focused on four separate themes: physiology of voice-affecting conditions; speech acoustics for evaluating dysphonia; speech production measurements for treating voice disorders; machine learning integration for voice disorder assessment.
Conclusions: Taking a wide view of acoustic voice assessment demonstrated research strengths and gaps-highlighting where it is used and not used-and the co-occurrence…
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