New updated iOS app - "Wavelet Voice Sonogram" ver 3.0


"Wavelet Voice Sonogram" has been updated to version 3.0 today!

"Wavelet Voice Sonogram" is an iPhone app that performs acoustic analysis of voice signals and displays a spectrogram.

A spectrogram is a graph showing the results of sound frequency spectrum analysis with time on the horizontal axis, frequency on the vertical axis, and signal strength represented by colors, and is used for voice analysis, voiceprint identification, and other purposes.

The application can perform acoustic analysis and display spectrograms using three time-frequency analysis techniques: Wavelet analysis, Octave-band analysis and FFT analysis.

It is easy to perform acoustic analysis of speech, instrumental sounds, noise, and so on. It can also be used for elementary learning of speech analysis.

In this latest version, the UI design has been updated and the stability of the application has been improved.

- Wavelet analysis

- Octave-band analysis

- FFT analysis

It is possible to record audio signals from the iPhone's built-in microphone. While playing back sound, you can search for the desired sound and perform acoustic analysis.


The zoom function allows you to zoom in on a specific period of approximately 10 seconds of PCM data to find the point you want to analyze.

wvs_timepoint_v300.jpg wvs_zoom_1_v300.jpg

If you are interested in this app, please click the following link to display on the product information of App StoreTM.

posted by toons at 09:32 | News