I guess those were the ones I saw at an Angular conference in London.

It was a totally amazing experience, and for a non native speaker allowed me to catch every joke and nuance (or so I think).

At one time the speaker was talking about the scaffolding system of Angular that I can't remember the name of right now and it became a bit recursive with templates of templates and that was the only time when the stenographer lagged slightly, the speaker realized and took it a bit further until the stenographer realized it and made a witty comment instead.

At BangBangCon, they managed to fully capture the nuance of audio-based humor, to the point that their captions made funny things funnier.

Watch the video from BangBangCon 2019 on steganography for one example; the presenter hid data in audio files, so the stenographer carefully described the data-enabled files as sounding "perfectly normal, unsuspicious".