Development and Technical Validation of a Smartphone-Based Cry Detection Algorithm

Frontiers in Pediatrics

article

Ahnjili ZhuParris¹  Matthijs D. Kruizinga²  Max van Gent¹  Eva Dessing¹  Vasileios Exadaktylos¹  Robert Jan Doll¹  Frederik E. Stuurman¹  Gertjan A. Driessen²  Adam F. Cohen¹ 

[1] Centre for Human Drug Research;Juliana Children's Hospital, Haga Teaching Hospital;Leiden University Medical Centre;Department of Pediatrics, Maastricht University Medical Centre

关键词: crying;    infant;    home-monitoring;    hospital-monitoring;    smartphone;    machine learning;   

DOI  :  10.3389/fped.2021.651356

学科分类：社会科学、人文和艺术（综合）

来源: Frontiers

【 摘 要 】

Introduction: The duration and frequency of crying of an infant can be indicative of its health. Manual tracking and labeling of crying is laborious, subjective, and sometimes inaccurate. The aim of this study was to develop and technically validate a smartphone-based algorithm able to automatically detect crying. Methods: For the development of the algorithm a training dataset containing 897 5-s clips of crying infants and 1,263 clips of non-crying infants and common domestic sounds was assembled from various online sources. OpenSMILE software was used to extract 1,591 audio features per audio clip. A random forest classifying algorithm was fitted to identify crying from non-crying in each audio clip. For the validation of the algorithm, an independent dataset consisting of real-life recordings of 15 infants was used. A 29-min audio clip was analyzed repeatedly and under differing circumstances to determine the intra- and inter- device repeatability and robustness of the algorithm. Results: The algorithm obtained an accuracy of 94% in the training dataset and 99% in the validation dataset. The sensitivity in the validation dataset was 83%, with a specificity of 99% and a positive- and negative predictive value of 75 and 100%, respectively. Reliability of the algorithm appeared to be robust within- and across devices, and the performance was robust to distance from the sound source and barriers between the sound source and the microphone. Conclusion: The algorithm was accurate in detecting cry duration and was robust to various changes in ambient settings.

【 授权许可】

CC BY