AndroSpectro

AndroSpectro


Create a visual image from the sounds around you.

Free Version Features:
* Multi-Touch Zoom/Pan * Display up to 3 minutes of continuous recording * Save as Image * Load previously saved Images * Change Spectrogram Colors * Easy Auto-Level / Max-level
Paid Version Features:
* Set Sampling Frequency/Window Size/Window Type * Show dB/Amplitude * Spectrogram smoothing * Export data to Matlab

What is a Spectrogram?
Every signal is a combination of unique frequencies, and can be disassembled into its frequency components. ("Frequency Spectrum")
A Spectrogram is a technique that is used in Audio Analysis (Spectral Analysis) to see the real-time behaviors of signals. It plots the frequency components of the signal over time.
The bar on the left shows the frequency (in [Hz]) and the color is the intensity of that frequency.

Why AndroSpectro?
For non-techies - AndroSpectro is the simplest spectrogram app available. Just press the "Play" button. Feel free to Zoom-in/Pan using multi-touch gestures. You can also easily set the Maximum level or press 'auto' for auto-leveling.

For techies - AndroSpectro gives you control over every parameter you can think of. Display up to 3 minutes of continuous recording history and save as an image for later viewing.

For mega-geeks - Export the raw Spectrogram data to Matlab for further analysis. Your phone becomes your handheld input device for advanced audio analysis. (We wish we had it as a student)
Goto http://androspectro.com/matlab for more info

Please give us feedback so we can improve the app!
Thanks,
The AndroSpectro team

Recent changes:
* Much faster load time
* Now supports real-time(!) orientation changes (Portrait/Landscape)
* Share Spectrogram image via email

If you are experiencing problems with the app, please contact us at [email protected] or send feedback from within the application. Thanks!
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$4.31
85
4.3
User ratings
27
Installs
500+
Concerns
0
File size
932 kb
Screenshots
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About AndroSpectro
Create a visual image from the sounds around you.

Free Version Features:
* Multi-Touch Zoom/Pan * Display up to 3 minutes of continuous recording * Save as Image * Load previously saved Images * Change Spectrogram Colors * Easy Auto-Level / Max-level
Paid Version Features:
* Set Sampling Frequency/Window Size/Window Type * Show dB/Amplitude * Spectrogram smoothing * Export data to Matlab

What is a Spectrogram?
Every signal is a combination of unique frequencies, and can be disassembled into its frequency components. ("Frequency Spectrum")
A Spectrogram is a technique that is used in Audio Analysis (Spectral Analysis) to see the real-time behaviors of signals. It plots the frequency components of the signal over time.
The bar on the left shows the frequency (in [Hz]) and the color is the intensity of that frequency.

Why AndroSpectro?
For non-techies - AndroSpectro is the simplest spectrogram app available. Just press the "Play" button. Feel free to Zoom-in/Pan using multi-touch gestures. You can also easily set the Maximum level or press 'auto' for auto-leveling.

For techies - AndroSpectro gives you control over every parameter you can think of. Display up to 3 minutes of continuous recording history and save as an image for later viewing.

For mega-geeks - Export the raw Spectrogram data to Matlab for further analysis. Your phone becomes your handheld input device for advanced audio analysis. (We wish we had it as a student)
Goto http://androspectro.com/matlab for more info

Please give us feedback so we can improve the app!
Thanks,
The AndroSpectro team

Recent changes:
* Much faster load time
* Now supports real-time(!) orientation changes (Portrait/Landscape)
* Share Spectrogram image via email

If you are experiencing problems with the app, please contact us at [email protected] or send feedback from within the application. Thanks!

User reviews of AndroSpectro
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Android Market Comments
A Google User
May 20, 2014
Freezes on Settings Now the app freezes when tapping Settings. Please update to fix this bug. Tx.
A Google User
Apr 6, 2014
Great app Does what it says. I would like to see it save a higher resolution image with the frequency range in the image.
A Google User
Sep 24, 2013
The ONLY one that WORKS I've used this app on a Moto Droid, a Samsung Galaxy, and a Google Nexus. On all three, it has truly performed as well as our $ 8000 B&K audio analyzer. All others perform poorly in actual use. Although others may look better than this one, there just isn't anything worthwhile under the hood.I've tried at least 50 others and they all simply fail in REAL science or engineering use. THIS one does very well!!
A Google User
Apr 1, 2013
It used to be awesome :( Idk what happened. I just opened it and, as I record, it keeps freezing on me. It doesn't work at all for me anymore. What happened? :'( Gimme the awesome app back!
A Google User
Apr 1, 2013
It used to be awesome :( Idk what happened. I just opened it and, as I record, it keeps freezing on me. It doesn't work at all for me anymore. What happened? :'( Gimme the awesome app back!