[sdiy] Cheap audio spectrum analyzer

[Jean-Pierre Desrochers]

Hi list,
Do you know of a cheap audio spectrum analyzer I could
buy to check 20-20khz frequency response on audio stuff ?
That would includes sinus generator + analyzer in the same box.
I checked on eBay and most analyzers are RF band based and are
so $$$$$ expensives. But 2 things:
- I don't want to use analysis software on a separate PC
- Any DIY projects with micro/graphic LCD would do..
I want a standalone analyzer.
Thanks