Hello, I want to make extension that can recognize some sounds, but I don’t know how to get microphone frequency. Anyone know how to do it? Thanks in advance 
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Thanks, but the project https://makecode.microbit.org/21869-69247-64798-08788 doesn’t work (look in the custom.ts file, most functions are commented)
The actual code is one of the cpp/c++ files.
But also most of the code of cpp files is commented…