How to make sound using frequency

MIT App Inventor Help
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I want to make a frequency test app that can be heard by age. Is there a function to generate hz in appinventor2?

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Please ask in the forum for the distribution you are developing on

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See here for some ideas:

http://kio4.com/appinventor/169K_javascript_audiofrecuencias.htm

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Here with a extension:
http://kio4.com/appinventor/239_extensiones_generadortono.htm

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Useful tone chart

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