Cross-device and test-retest reliability of speech acoustic measurements derived from consumer-grade mobile recording devices

The present study investigated the cross-device and test-retest reliability of speech acoustic measurements derived from consumer-grade mobile recording devices. Speech outputs were recorded simultaneously using four devices: a voice recorder, laptop, tablet, and smartphone. Using the linear mixed-effects modeling approach, we tested three important facets: (1) whether there was systematic bias across devices and testing sessions; (2) the cross-device and test-retest reliability quantified using ICC and WSCV. The raw acoustic features were attached below.