Spectrum Analyzers

[sll]

Can anyone recommend a reasonably priced audio frequency spectrum analyzer which accepts electrical line level inputs?
Thanks,
Steve

[The Dude]

I don't know what your application is, but there are lots of software analyzers available.

[Enzo]

>enter your need into google. I just looked for "audio frequency spectrum analyzer" and found all sorts of interesting stuff. Software, hardware, Amazon has a slew of cool stand-alone spectral displays.

Example: https://www.amazon.com/audio-spectrum-analyzer/s?k=audio+spectrum+analyzer

[sll]

Thanks guys,
S

[oc disorder]

They claim you can get a one octave Real time Audio Spectrum Analyzer in the free demo version that doesn't expire and it runs under Windows Vista, 7, 8 and 10.
Then you can pay for "upgrades" and extras depending on what you want.
https://www.trueaudio.com/rta_abt1.htm

Then there is this free one Visual Analyser Project ( current v. 2020 ) which started out with the co-operation of Nuova Elettronica who
published designs for hardware interfaces .. unfortunatly the magazine shut up shop and the articles are all in Italian.
https://www.hitsquad.com/smm/programs/VA/

Homepage http://www.sillanumsoft.org/

Sillanum Soft & the author
" My name is Alfredo Accattatis; I love electronics and software, and I have been working for years in commercial companies as software/firmware engineer and software designer. I've been writing programs for embedded systems (with DSP and MICROCONTROLLERS), for PC, for Avionic Computers and even for Mainframes, using C, C++, Pascal, Ada, REXX and assembly. I starting write VA during my free time just for fun and using (also) my DSP experience. The program was and is completely FREE.
I've been collaborating with the University of Rome "Tor Vergata" from 2006 in the "Signal and image Measurements and Processing" group, as Ph.D. student"

[nickb]

The Visual Analyzer is not a bad for basic measurements. Sadly it has quite a few quirks and there are serious defficiences in the impedance analyzer. The author is completely unresposive. It's hinted that you'd get better support if if bought a llicesnse but with no response from the author at all I got a bad feeling I'd be throwing my money away.