Hello.
Can anyone recommend a portable spectrum analyzer for audio?
Everything I see seems oriented to radio signals because it reaches up to Gigahertz, and below from 100Khz or something less, and leaves out the entire audible spectrum.
I have a Hantek oscilloscope MSO5102D, which I recently discovered has a spectrum analyzer in the Math functions, but it looks very rudimentary, for example it does not have options to automatically detect harmonics and their levels, calculate THD and other sound-related functions.