Research into human laughter identifies several distinct acoustic "features" used for analysis or AI classification: Fundamental Frequency (
For a creative look at how laughter can be used as a production tool, watch how to add laugh tracks to your own videos: How to Add a Laugh Track to a Video YouTube• May 23, 2022 ) : The pitch of the laugh, which
: Newer technology like the Rich Laugh app uses AI algorithms to analyze a recorded 5-second laugh to determine its "vibe". the interval between those notes
: On platforms like TikTok , creators can use live effects such as the laugh icon to trigger interactive sounds for their audience during a stream. ) : The pitch of the laugh, which
: These include the duration of "bursts" (vowel-like notes), the interval between those notes, and the overall intensity/volume decay of the laughter.
) : The pitch of the laugh, which varies significantly between voluntary and involuntary instances.