This is a relatively simple app compared with other apps that also perform audio analysis. Simple in that it only does one thing: it plots an aural spectrogram (aural meaning it analyzes over the "standard" audio spectrum, as in up to 20 kHz). Like the other apps I have in this category, it has zero documentation and at times can feel like an IQ test. But its functionally is so limited that the controls are not that bad.
There are two things worth noting. One I like, the other I don't.
The one I like: it lets you set the upper frequency to be graphed. As a beginning (read, struggling) singer, I use the spectrogram to see my harmonics when I sing a note. Most of the other aural spectrograms have fixed upper frequencies at around 20 kHz. That results in the harmonics I care about being limited to small area of the screen, as the harmonics are mostly below 1 kHz. This app allows you to set the upper frequency via a slider control. Interestingly, the value you set with the slider is not the value the app ends up using. The app has a mind of its own. But the value it chooses is close enough to what you set that everything is fine. I'm currently using it with an upper frequency of 1.1 kHz, and that spreads my harmonics out nicely, using virtually the entire screen. Although not really essential, expanding the harmonic display in this fashion is a plus in my book.
The one thing I don't like: when the graphing reaches the end of its display window on the right side of the screen, instead of scrolling the data plotted so far it re-starts plotting from the left side, overwriting the older data as it goes. I believe that scrolling the screen makes it easier for the user to follow the graph and is more professional.
One other feature they promote: they give you access to many different settings to control the analysis and related operations. The only one of these settings I care about is the frequency range, as described above.
Overall, a reasonable app for its purpose. No real complaints.
AndroSpectro
5 | 4 ratings
Price: 3.99
Last update: 12-30-2024
Latest updates
What's new in version 1.25- Fixed errors on some devices.
- Multi-Touch Zoom/Pan improved
- If you are experiencing problems with the app, please contact us at [email protected] or send feedback from within the application. Thanks!
Product Details
Release Date: 2011
Date first listed on Amazon: November 21, 2011
Developed By: Augury Systems
ASIN: B006BBYB9S
Customer reviews:
5.0 out of 5 stars4 customer ratings
5.0 out of 5 stars4 customer ratings
Developer info
- [email protected]
- http://androspectro.com
- More apps by this developer
Product features
- Create a visual image from the sounds around you
- Display up to 3 minutes of continuous recording
- Load previously saved images
- Change Spectrogram colors
- Set Auto Level and Max Level
Product description
AndroSpectro allows you to create a visual image from the sounds around you. For non-techies: AndroSpectro is the simplest spectrogram app available. Just press the Play button. You can zoom and 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.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.
User Data Privacy
Information not provided by the developer.Technical details
Size: 552.2KB
Version: 1.25
Developed By: Augury Systems
Application Permissions:
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Help me understand what permissions mean
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- Access information about networks
- Open network sockets
- Read only access to device state
- Record audio
- Access the vibration feature
- Write to external storage
Minimum Operating System: Android 2.1
Approximate Download Time: Less than 30 seconds
Top reviews from the United States
Interstitialist
A reasonable aural spectrogram at a reasonable price.
Reviewed in the United States on February 7, 2015Scott Wolf
Best of them all
Reviewed in the United States on January 18, 2022R.Rossiter
I love Androspectro.
Reviewed in the United States on February 20, 2014