A Morse decoder that runs in a browser tab
路 7 min read
Audio from the sound card turns into text, and all of it happens in the tab: nothing is uploaded to a server, nothing calls out to somebody else's API. A 14 MB neural network sits next to the page, the ONNX runtime is built into the same bundle, and after the first load the page works with no network at all.
The interesting part is not that it works. The interesting part is how many ways there are to get it wrong, none of which announce themselves with an error.