FFT Spectrum Analyzer

All apps should be written this well. Sadly I'm looking for frequencies around 18K to 22K so not of use to me :(

Only captures peak frequencies on manual pause. Useless for transient sounds, like drums.

Fantastic app. I wanted something to show frequency content of input fr microphone and that's what I got. I'd recommend it if just because it's nice to get what you expect.

Perfect and fast, not annoying ads

Very useful and simple. Just want possibility to remove ads.

Smooth and easy to use. Works well on Nexus 7 (Grouper)

Like it!

You lock the taskbah.

Nice as is except the ads.

would be perfect if it could handle microphone input, record fft data, and if you could remove the ads. good work!

I don't normally rate apps but this one deserves credit. Well built UI and simple to use. The newest version has audio gain control and when pause (held) gives you several peak values. Also the band setting were simplified for quicker changes. A useful tool for debugging or just having fun.

Problem is, there is no level reference, so the display means nothing with regard to the level of the sound. So close. It just needs dB down the side. And if you are going to do that, could you please make it possible to put our own Hertz value points on the lower scale. I need 125,250,500,1000,1500,2000,3000,4000,6000,8000 and possibly 10k too. Found DIGI+ Sound meter has all sorts of meters and can be calibrated. So Im sorry. Uninstalling this.

This app it good at analysing frequencies, however struggles to get low frequencies below 250-300hz correct, and this is something that I would have primarily needed the app for - above this range is quite accurate. I can't say whether its a hardware or software issue, hence 4 stars.

Good, i need to take vibration signature but how to take with the help of this app, that i dont know, can anyone take me out of this? is this a freq. Amplitude graph? plz kindly suggest me the steps for using this app with my mobile and how to save in computer

A 440hz tone was measured as 333hz. Cannot adjust amplitude level.

Good app for FFT. I suggest, to have user option for selecting frequency band, say, 20hz to 2khz only, or still less.

Best acurracy I've seen for free! Great job to the developer!

Nice GUI, but it could be better if you increase the bandwidth, and plot the amplitude values on Y-axis

Finds fundamental frequencies with ease. Makes my life easier

Waste of time

Give us a way to export the data, please

Fun and useful.

Good

frequency between 0.0 and 2.4 KHz measurable,

Works nicely...would like to see a readout of the main frequencies though.

would be a 5 stars if peak was marked

But I can't do anything with this app just shows waves bummer

Best app

I don't see the peak and value of dominant frequency. Well made but very limited features.

Its gd but it gets a lttl boring. the othr anylzrs i like, they hv clr 2 them and can anylz video to. Give mre settngs & uv got a winner. See ya...

but the interface and functionality are very basic.

Very fun app!

Best

No input gain settings. Have to blow my ears out before it's possible to see the freq. Also, graph should be in octaves. And this is an rta. Not fft

Its gd but it gets a lttl boring. the othr anylzrs i like, they hv clr 2 them and can anylz video to. Give mre parametures & uv go a winner. See ya...

Got no display of any waveform of any kind... just the empty backdrop and a "hold" that toggled on sceen touch.

5 stars whithout doubt. Do what it looks like and simple and all clear. But I am REEEEALLY looking forward to that this could catch system sound output (including music players', ringtones', alrms' etc. in one word it should catch the final mixed sound output of the devices). I know this is not what the app designed for but.... You did really a good job and I really really want to see that feature!

would be perfect if it could handle microphone input, record fft data, and if you could remove the ads. good work!

frequency between 0.0 and 2.4 KHz measurable,

Would be nice to be able to set the start and end of the x axis. I'm just interested in 0 to 200 Hz right now. (Trying to tune a sub with a set of speakers)