AUTHOR=Gittelson Ben , Leemann Adrian , Tomaschek Fabian TITLE=Corrigendum: Using Crowd-Sourced Speech Data to Study Socially Constrained Variation in Nonmodal Phonation JOURNAL=Frontiers in Artificial Intelligence VOLUME=4 YEAR=2021 URL=https://www.frontiersin.org/journals/artificial-intelligence/articles/10.3389/frai.2021.692064 DOI=10.3389/frai.2021.692064 ISSN=2624-8212