JGFFTViewer_
Detailed App Info:
Application Description
JGFFTViewer is a live FFT viewer to see the frequencies in sound around you and a noise meter(or sound meter). You can also view the actual waveform of the audio signal.
Each test of frequencies at 4kHz and 8kHz can be generated respectively by tapping its button on the top of the screen. To stop checking the waveform, tap the Stop button below the frequency's graph.
JGFFTViewer uses an algorithm of the Fast Fourier Transform to analyze frequencies.
You can perform this app with the internal microphone (iPhone). The decibel (dB SPL) in audio measurement can be inspected by you. If the curved line of frequencies becomes a colored line in red, then it tell you that the environment around you is not quiet, or not suitable to have a time you have to concentrate.
Each test of frequencies at 4kHz and 8kHz can be generated respectively by tapping its button on the top of the screen. To stop checking the waveform, tap the Stop button below the frequency's graph.
JGFFTViewer uses an algorithm of the Fast Fourier Transform to analyze frequencies.
You can perform this app with the internal microphone (iPhone). The decibel (dB SPL) in audio measurement can be inspected by you. If the curved line of frequencies becomes a colored line in red, then it tell you that the environment around you is not quiet, or not suitable to have a time you have to concentrate.
Requirements
Your mobile device must have at least 144.81 KB of space to download and install JGFFTViewer_ app. JGFFTViewer_ is available on iTunes for $0.00
If you have any problems with installation or in-app purchase, found bugs, questions, comments about this application, you can visit the official website of Kim Jae Geol Robin Kim at http://sites.google.com/site/jaegeolkim/.
Copyright © Jaegeol Kim
