For my application, I need to visualize the audio signal that's sent to an audio interface (core audio/hardware sound card), without needing to forward the signal (this is how soundflower or jack audio work).
One example is that QuickTime player allows the user to record whatever is playing at the moment. I need the same ability to capture audio but in my case I'll visualize the signal.
Is it possible to use QAudioProbe and QMediaObject to achieve this?