Chirp PubNub Chat

In this tutorial, we’ll be building a chat application that uses audible chirps to connect users to the same channel using the Chirp WebAssembly SDK and PubNub JavaScript SDK. Using Chirp, you can eliminate the need for users to manually enter the channel they want to join. The users only need to enable microphone access and turn up their speaker to connect to each other. Think of Chirp as an audio QR code.

Find the whole tutorial here.

Chirp’s SDKs allow you to send small amounts of data over sound. It is designed to work in noisy everyday environments and doesn’t require perfect silence to work. In my experiments, I found that my chirps were received in almost every reasonable scenario I tested.