Anyone know of (hopefully free) software which will give a real time
display of energy bands?

If say you fed white noise into an amp and the output to the PC, it gives
a graphic of the energy at different frequencies - a sort of instant
frequency response trace.

Thing like Audacity can analyse a recorded sample afterwards - I was
looking for something which will do it in real time.

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*I don't believe in astrology. I am a Sagittarius and we're very skeptical.

Dave Plowman London SW
To e-mail, change noise into sound.