Table 2.

Average response time and standard deviation analysis for the empathic embodied virtual agent (eEVA) using 4G or broadband connections over the internet between North America and Europe, with caching disabled (first run).

Functionality	Time on 4G mobile data (milliseconds)	Time on broadband internet (milliseconds)
Unity 3D character, mean (SD)	30018 (663)	24626 (1910)
TTSa (sentence), mean (SD)	939 (381)	551 (141)
TTS (word), mean (SD)	72 (40)	44 (23)
Speech recognition	~30 (offline processing)	N/Ab
Entire HTTP request, mean (SD)	1124 (166)	784 (66)
DOMc loading, mean (SD)	2313 (80)	1635 (224)

^aTTS: text to speech.

^bN/A: not applicable.

^cDOM: Document Object Model.