I would like to use the QA403 for characterizing USB microphones. Would it be possible to create an option to select a different PC audio source to perform the analysis on? I will use a QA403 together with a QA461. One reference microphone will be coupled to the QA403, but as the other microphones I’m testing do not always have an analog output, I would like to use the system’s audio input for this via USB.
Not sure if this would be difficult