• FFT Spectrum Analyzer 1
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FFT Spectrum Analyzer

Free Frequency Spectrum Analyzer
- Fast fourier transform
- Adjustable gain and frequency range
- Tap to hold
- Microphone input
- Detect main frequencies

Category : Tools

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Reviews (30)

Zac. S. Feb 19, 2021     

Easy to use, and I really like the hold function that shows you the frequency of each of your biggest peaks. I wish this was full spectrum, going up to 20K and possibly up to 30k. I definitely like that it goes down to 0 Hz, or at least it represents that it does. Sometimes we need to know subsonic information, and I don't find that in other spectrum analyzer apps. I also haven't seen an ad, and that's rather nice. One big thing missing though: no volume or velocity information on Y axis.

Jef. W. Jan 28, 2020     

Easy and useful. Clear easy to read display, and there's a button to freeze the spectrum and pick/display frequency values on all the peaks. The slider for scaling the x axis is confusing and not intuitive but that's really the only issue.

Ano. T. Mar 5, 2019     

For some reason scale is limited to 9--10 kHz. Don't know if it's hardware issue or not (other similar apps like Spectroid and NoiseCapture show up to >=20 kHz)... Otherwise it's really good app without any kind of unneeded extras, etc.

Eri. R. Jul 27, 2019     

Like the app a lot as a church sound tech. Good for EQ'ing. Dinged it to 4 stars for two reasons. No ability to pay to remove ads (I'd gladly pay) and the app doesn't appear to save configuration changes. Great app otherwise.

Sop. N. Jun 1, 2019     

What our brains are doing while recognizing those pitches from a chord? It's performing Fourier transform! U can use this app to extract sounds of different frequency lol. It would be better if it can record sound and modify the sounds like filtering the noise.

Dad. T. Nov 13, 2020     

Ads are RIDICULOUS! This has just become another revenue generator for the developers. Ads KEEP getting in the way. STILL haven't fixed keyboard issue with tone generator...can't collapse keyboard to start generator after entering in frequency...worse they load an ad over the keyboard to make it even more impossible.

Fab. F. Jan 14, 2019     

Excellent app! Simple, fast, intuitive, decluttered, does what it has to do as a spectrum analyzer. I love it as an attention catcher for kids who are into singing and science.

Ris. P. Sep 19, 2019     

Nice experience to use for demo modelling of digital signal in live. But we can't insert already stored audio signal

set. w. Sep 14, 2019     

It needs a crosshair so you can click and see exactly which frequency is peaking.

Mar. R. Jan 12, 2021     

Love this app!! Easy to use so many different settings. If you are wanting a full spectrum app get this one !!

Sha. R. Jan 2, 2019     

Excellent quality and very sensitive spectrogram and spectrograph I put up to the speaker of a communications receiver to see the output of different digital signals and this shows their signature very well

Aha. B. Nov 9, 2018     

Cool apps for sound visual representation. But still have much more space to improve......

A. G. u. Dec 28, 2018     

This would be a five-star marvel except for the ads. I'd be happy to pay to remove them but there's no option to.

Rau. V. Dec 9, 2020     

It goes from 0 to 9000Hz, not 20000Hz. In live mode it doesn't remember the peak.

nye. Oct 23, 2018     

The developer deserves a huge shout out. What a great app! First app that I've ever seen that delivers exactly what promised in description. A+

Don. M. Oct 13, 2018     

I downloaded it out of curiosity. Pretty neat app to mess around with. I didn't use all of it's features but I'm happy with what I have used. I like it

Rob. M. Dec 29, 2019     

Tests good for whispering voices in a quiet situation. I mean go record that ghost ! Find those talkative spirits !

Pyr. D. Feb 2, 2019     

Would give it 5 stars if you could pay to remove ads and playback sound...

Chr. R. Oct 7, 2018     

So far I like it. What is like to know is why am I seeing images? As I'm watching it I see familiar images. Is that normal?

Chr. R. Mar 8, 2019     

Excelent app that is easy to use and does exactly what it says it will do.

Kat. W. May 13, 2019     

why can they have one that would have recored and play back ,, looking for one like that as well has this one ,,

Dam. A. Mar 14, 2021     

Works great, does exactly what it's supposed to, no bull! ❤️

Kha. A. Feb 27, 2021     

Very nice thanks devs stereo responsive 😍and no ads ❣️

Adz. p. Jul 5, 2020     

Easy to use but still need a lot of improvement

A. G. u. Oct 20, 2018     

Trying to download it with the last bit of data

Ed. G. Mar 24, 2019     

Great way to visualise sounds

BIT. Nov 2, 2018     

I like this but it doesn't showed how to used it what to do so I don't like much.

Dre. 1. Sep 14, 2018     

It will not work on a Samsung 8 note

Bry. I. Apr 1, 2021     

Bryan ad2 is a a c k s is having problems communicating correctly

Viv. D. Oct 5, 2021     

Very good app for real time fft