Fig. 2.

Trial flow chart of the web app speech collection task, with the pages translated to English. First, an empty page (a) is displayed with an enabled start button and a disabled stop button. When the participant clicks the start button, (b) the audio recording begins, the stop button will be enabled. The stimulus in the form of an image (or text for the read-aloud task) is being presented. After the participant completes the stimulus speech collection task, he/she or they click on the stop button, triggering the redirection to (c), where the participant reports their experienced arousal and valence values