Spectroid

Spectroid Free App

Rated 4.80/5 (1,644) —  Free Android application by Carl Reinke

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About Spectroid

Spectroid is a real-time audio spectrum analyzer with reasonable frequency resolution across the the entire frequency spectrum.

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How to Download / Install

Download and install Spectroid version 1.0.1 on your Android device!
Downloaded 100,000+ times, content rating: Everyone
Android package: org.intoorbit.spectrum, download Spectroid.apk

All Application Badges

Users love it
Free
downl.
Android
4.0+
Bug
buster
For everyone
Android app

App History & Updates

What's Changed
- Added DC subtraction to remove bad readings around 0 Hz.
- Fixed a few small bugs.
Like this app? Rate it!
Version update Spectroid was updated to version 1.0.1
More downloads  Spectroid reached 100 000 - 500 000 downloads
More downloads  Spectroid reached 1 000 - 5 000 downloads
Version update Spectroid was updated to version 0.9.2

What are users saying about Spectroid

W70%
by W####:

Does exactly what it says on the box! And doing it good, no ads and for free. You're the best!

D70%
by D####:

Is there a way I can input a recorded audio file as input?

V70%
by V####:

I just found a blank area at 375-380hz and 750-770hz etc... It looks harmonic.. any details on that?

U70%
by U####:

It's very impressive but I am finding it difficult to use it by I think with time I would learn how to use it

I70%
by I####:

Amazing app, would love even more if it had a timestamp or ruler in the fft window. Thanks for the excellent job.

T70%
by T####:

Needs an easy file save interface. Need the files for court.

L70%
by L####:

The Best of the best! Thx so much guys for this app!

S70%
by S####:

Beautiful app!!! Could use a time scale on the waterfall though. You can make really pretty patterns with music playing in the background

G70%
by G####:

Does exactly what it promises, and does it well. Fascinating app to use during choir or band.

Q70%
by Q####:

waterfall, adjustable bins, what more could an audio engineer want? May be a built in Freq gen?

B70%
by B####:

Hey dev, can you add the fullscreen feature? i really like your work.

M70%
by M####:

Really good spectrum analyzer. Works beautifully. You can pinch the frequency scale to zoom in/out. I wish it had a setting to adjust the time scale in the waterfall.

P70%
by P####:

Would be perfect with 3 more features: being able to change color maps, saving and loading waveform sounds files (.wav).

X70%
by X####:

*Excellent* app. Thank you, Carl :-) (update: also added to my Huawei Mediapad T7.0)

O70%
by O####:

Awesome, better than the rest ... or at least, the other one I tried

K70%
by K####:

Would love the ability to make waterfall fullscreen, and invert it's direction. Other than that, it's an easy 5 stars!

H70%
by H####:

Seems pretty useful so far, but is there anywhere to get an explanation of settings for people have an idea what they do, but not completely?

N70%
by N####:

Spectacular, vivid app! Super sensitive and accurate reading! If you could implement the recording feature by the time, it would make your development A+. Thank you

E70%
by E####:

Great app. Would have been amazing if there were options for I/O, like analysing a recoded sound file and saving the results as images...

C70%
by C####:

Absolutely perfect! I'm obsessed with frequencies now.

F70%
by F####:

Not sure what Mike's review is about. There has always been a pause button in the corner. By touching the screen, you can see the gain at any frequency Great app

Y70%
by Y####:

After some trial and error tweaking it remains the only app if it's kind on my phone.

J70%
by J####:

Awesome! It immediately identifies and labels prominent frequencies even with a lot of ambient noise. Great performance. No unnecessary permissions.

R70%
by R####:

Good and thanks for developing this, especially for free. But I'd like to be able to specify the frequency domain of interest and only have the fft performed on that... with millihertz discretization. Specifically, I want to be able to regulate the beat of a mechanical clock with it, where the signal is detectable in the 1-6hz range and a 1hz difference will make the clock be off by six hours per day.

A70%
by A####:

Has become one of the first apps I install on a new device. Incredibly useful and completely free. Author rocks.

Z70%
by Z####:

Best spectrum analyzer app by far. Intuitive interface using two-finger swipe and zoom for adjusting both axes. And FAST! Great app.

W70%
by W####:

Awesome! The most fully featured, performant android app for spectrum analysis I've yet used yet

D70%
by D####:

Great adjustability for instrument and voice analysis purposes. Max hold easily lets me assess the relative frequency "fullness" across the spectrum as an instrumentis being played, for voicing and setup

V70%
by V####:

Great analyzer, gives a very accurate reading considering it uses a phone microphone. Recommended. It would be nice to have the various notes of each pitch and this would be very easy to implement.

U70%
by U####:

A very promising app. Would like to have 1/3 octave analysis and it would be great if it could be used with an external USB microphone with calibration facility.

I70%
by I####:

Very good and responsive spectrum analyzer. A useful missing feature would be to have an option to display musical note name along with the frequency.

T70%
by T####:

Unbelievable that it's free! Thanks dev! Love everything about it. A help section detailing the different settings would be great for clueless n00bs like me, though.

L70%
by L####:

App works very well and also looks nice. Would be cool, if it was possible to hide the 0-10hz range by default, to make room and increase the resolution for the rest of the graph.

S70%
by S####:

Holds peak, id's frequencies on pause, accurate according to lab arbitrary waveform generator. Only addition wild be cursors to jump between peaks when paused!

G70%
by G####:

Really Nice and well​ done app, lot of tech config, zoom/pan intuitively implemented. A nice feature addition could be capture/replay, and import/export from some standard format like wav, ogg or mp3. Kudos for the Authors!

Q70%
by Q####:

I never wrote reviews, but this is the greatest app ever. I go around "looking" at every sound I see. I wish this could just be a live wallpaper

B70%
by B####:

Very neat, well designed and implemented app. The zoom features work exactly as I'd expect, and the settings give me a lot of control over how audio is captured and analyzed. Surprised and delighted at the quality!

M70%
by M####:

Great app with a few musing missing features like recording lengths of audio input, exporting the spectrum as... a picture maybe, pausing the flow, a switch to the internal audio. Then this would be a 6 star review.

P70%
by P####:

Brilliant spectrum analyser. The waterfall display reveals so much about the audio with harmonic distortion being plain to see on frequency sweeps. It would be great if this data could be output as a CSV file.

X70%
by X####:

It's not bad but it needs a few additions to make it usable; Add a peak hold, or at least a stop so you can see what as going on. The display jitters so much that you cannot read frequencies being displayed - there just isn't time. Add an averaging function. This will also allow a human to read it. Allow larger fonts!


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Rating Distribution

RATING
4.85
1,644 users

5

4

3

2

1