Thank you for your post
Our best PC based oscilloscope for audio analysis is our ADC-216 as this is a high resolution 16 bit unit. It has 2 channels and a spectrum bandwidth of 166kHz (83kHz when both channels are active).
The Picoscope software will enable you to see real-time trace views and also real- time signal analysis. It cannot unfortunately perform signal analysis on saved data, you would have to do this yourself.
If you wish to record the data you can set a repeat trigger and get it to save on trigger so that it saves the file each time a trigger event occurs. The other way to record the data is to use our Picolog software which will record the raw voltage input values.
More information on our ADC-216 unit can be found on our website at:
Hope this helps