Thank you for this, I sadly couldn't get it to work reliably, but nonetheless a cool project.
I wondered what HN thought about it, and to my surprise I saw that it was never submitted!
I wondered what HN thought about it, and to my surprise I saw that it was never submitted!
Some smartphones or apps also do not record the full audio spectrum. iPhones works well, but Android support is not as good.
I tested it multiple times, and either it couldn't find the frequency (my feedback would be to still show the audio graph, to see what the algorithm "sees"), or there were just low percentage matches which absolutely didn't fit.