2 ms·
The sound of the videos is awful and little use, but I would guess, in reality, hearing can help too. And humans are exceptionally able to focus their attention
by _ph_ 7y ago
The sound of the videos is awful and little use, but I would guess, in reality, hearing can help too. And humans are exceptionally able to focus their attention on a single sound source.
In general, I would assume, like with driving, the job of the lifguard is a bit automatic, where the mind on its own filters out the ones, which might need stronger attention.
- keanzu 7y agoOn at least one example I heard constant frequency splashing - it was the drowning person, they were going under and coming up rhythmically so the sound was helpful.