How to perform an action if the MIC has registered a certain sound


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Is there a program that allows you to capture sound stream from microphone, analyze it and run some action (program) if the sound is suitable under some conditions. For example, the sound was louder than a certain threshold, or was the sound at certain frequencies.

I would be very grateful for an answer.
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You mean like voice control in the phone?
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In General, the only thing I found free on the subject — JackMeter (this is a command line program for linux audio JACK, JACK himself in difficulty settings is comparable to sendmail.cf).
For Windows, there are a whole lot of paid programs such as "Audio Spy", "Spy Voice Recorder", etc.
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Unfortunately, the only parameter to which you can attach the action — sound volume.
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I suspect that to write such a program from scratch, not much difficulty will be, if you have experience in desktop programming for windows. I have, unfortunately, it is not.
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