Frequenz Analyse FFT
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I'm looking for the fastest solution to output from the microphone the strongest current frequency of the frequency spectrum on a text label.
Open microphone Internal or external
Start recording
Save it to a file
Detect the strongest frequency (25 - 15000 Hz)
Save results in textlabel.
Loop Recording to stop.Close the file
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Hallo! Audio recording is easy with QAudioRecorder Class. For the analyzing part you'll need to find other 3rd party stuff unless you're willing to reinvent the wheel.
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Hi
This a good starting point as it allows to select device etc.
http://doc.qt.io/qt-5/qtmultimedia-multimedia-audiorecorder-example.html -
I'm looking for the fastest solution to output from the microphone the strongest current frequency of the frequency spectrum on a text label.
Open microphone Internal or external
Start recording
Save it to a file
Detect the strongest frequency (25 - 15000 Hz)
Save results in textlabel.
Loop Recording to stop.Close the file
@JoWe
something like the spectrum example?
Also see this blog post.Or this old Qt4 spectrum analyser example.
