I couldn't find audio in your example, just shortened URLs which are very difficult to memorize and type. But have you seen https://quiet.github.io/quiet-js/ h

I couldn't find audio in your example, just shortened URLs which are very difficult to memorize and type. But have you seen https://quiet.github.io/quiet-js/ https://quiet.github.io/quiet-js/? It is the only of these libraries that I could make work here (although I had to move the transmitter and the receiver very closer to each other).