Frequency Analysis With Your Mobile: Absolute FFT - First Fourier Transform

Android App "Absolute FFT" can execute frequency analysis wherever you want. Analyze every sound around your daily life. Now you are a person with Absolute Sense of Notes!

★FFT Analysis App for Android 

 FFT; Fast Fourier Transform is a method to identify frequencies in any sounds or vibrations. FFT is used for vibration or noise analysis in engineering fields.

 In this post, I'll introduce Android App "Absolute FFT", which identify frequencies in sound files.

★★★ Download at Google Play ★★★



★Find Frequencies in Sounds
 It's easy to use the App. Touch "Open" and select the audio file you have. After that, the wave form and FFT result will be shown in the screen. This example shows the result of analyzing a sound file, which contains 300, 400 and 600 Hz waves.


 This App's special feature is that the results can be shown in not only frequency, but also in "notes names (do-re-mi)". The graph below is the sound of harmonica, which shows there is a peak at "F4" note.

　

 It is interesting work to study the sounds around your daily life. For example, you can analyze the sound of kitchen timer. The result shows frequency peak at 4000Hz.



★Recording Function Also Available
 The App has recording function, so you can record the sound around you and analyze it immediately. I recorded noise of an electric shaver. The graph below shows 430Hz peak, which is "A4" in note name. Yes, now you have "Absolute Sense of Pitch".

 

 You can use the App in landscape layout, which may be suitable when using with Android tablets.

★Summary: Get it at Google Play!
 The feature of "Absolute FFT" is:

- Easy to use, but it execute the actual FFT analysis.
- Wide range of sound files and recorded sound can be used as input source.
- The results are shown in not only frequency form, but also "note name".
- Completely free and no adds included.
- Good in security because the App works without internet connection.

★★★ Download at Google Play ★★★