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I'm working on a personal project about audio frequency detection using Arduino. I have a question to ask you about why the last frequency detected by the software it's repeated in the serial monitor.I mean, while I playing a sound and then I have no signal in the line, however, the serial monitor still printing the last frequency detected. Do you know how to fix that or if it is possible? I leave an attached screenshot to show you what I'm talking about.Thanks
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