Frequency Sound Recognize

Trying to make an app for a school project in which I have to play a sound and then the app would recognize the frequency of the sound.

I know that there is an extension called SoundAnalysis, but when I use that extension, there is a javascript error message, so i guess it isn't working anymore ;(

So, how could I get this accomplished?

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How to avoid runtime errors with the companion app
1. After importing an extension, please restart the companion app.
2. If you like to use an extension on a different screen, in Screen1 additionally drag the extension into the working area.

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