Laugh

: These include the duration of "bursts" (vowel-like notes), the interval between those notes, and the overall intensity/volume decay of the laughter.

: Applications like Laugh Party and Laugh out loud offer features to trigger various types of laughter (e.g., giggles, belly laughs) directly from a device or Apple Watch. Acoustic and Scientific Features : These include the duration of "bursts" (vowel-like

) : The pitch of the laugh, which varies significantly between voluntary and involuntary instances. the interval between those notes

Research into human laughter identifies several distinct acoustic "features" used for analysis or AI classification: Fundamental Frequency ( : These include the duration of "bursts" (vowel-like

: Newer technology like the Rich Laugh app uses AI algorithms to analyze a recorded 5-second laugh to determine its "vibe".

: On platforms like TikTok , creators can use live effects such as the laugh icon to trigger interactive sounds for their audience during a stream.

: A standard audio feature in comedy productions and video editors like Kapwing where pre-recorded laughter is added to a video to create a sense of community and highlight jokes.