Spectrum Analyzer

Free application for visualizing sound coming to your phone's microphone. Program shows both waveform (time domain) and frequency spectrum (frequency domain) in real-time. User can pause, pan, zoom-in, zoom-out graphs and take snapshot to phone's gallery.
Since v.1.0.7, you can choose FFT window size either 1024 or 2048. A higher window size gives more accurate frequencies but using a small window size is faster and recommended on low spec phone. You can choose two histogram plotting styles (area plot or bar graph) and see dominant frequency from the graph.

Hope you enjoy !

Keywords: spectrum analyzer, frequency analyzer, sound oscilloscope, Fourier transform

Category : Music & Audio

Reviews (13)

Edg. L. Dec 10, 2015

Handy and free, v1.0.8 is very intuitive and works well.

wol. Jun 26, 2016

Decided to play with frequency counters since I have a way to test them using a fire pager and this one detected correct with in 4hz of the actual sound

sia. m. Jun 2, 2015

It's a very useful app and pretty accurated

Stu. J. Nov 12, 2014

Cannot control background raster brightness or trace contrast

Rog. S. Mar 25, 2014

Good little free app, reasonably accurate and offers sample rates down to 25ms. Get shot of the adverts and develop the app more.

Sco. F. Oct 6, 2014

Helped me to isolate a very annoying bass frequency

D. L. Jul 13, 2014

Crashes on startup with my Samsung SGH I997

Abh. Jun 27, 2014

Great app but id love more bandwidth..at least till 22khz and is it possible to analyze frequencies in ultrasonic range? It would be great for my project

Ste. H. Jul 9, 2014

Instant force close

Tho. G. Oct 2, 2014

Love this app....

mar. v. Apr 28, 2014

bad quality and does not function correctly. however it may work wonderful for other people and other phones.

Eri. K. Jan 28, 2016

Analog goes off scale. Useless.

Abh. K. Jun 10, 2014

Visualization very bad