Microphone access from Dashboard

Hi Sandra,

You didn't say which microphone node you are using, so I went looking for what is available in the flows library... it looks like the node-red-contrib-browser-utils provides a dashboard widget the start/stop button built-in:

Microphone

The browser starts recording after the button next to the node is clicked and stops it when the button is clicked again. The node outputs it as a WAV buffer.

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