New update - "Wavelet Voice Sonogram" ver 2.0


"Wavelet Voice Sonogram" has been updated to Ver 2.0 today!

"Wavelet Voice Sonogram" is a new sound spectrogram app that performs time-frequency analysis of acoustic signals.

A spectrogram is a graph that shows the results of a sound frequency spectrum analysis with time on the horizontal axis, frequency on the vertical axis, and signal strength in colors.

This app can perform acoustic analysis and display the spectrograms by using three time-frequency analysis methods, Wavelet analysis, Octave Band analysis, and FFT analysis.

It can record sounds from iPhone built-in microphone. While playing the sound, you can search for the desired sound and analyze it.

"Wavelet Voice Sonogram" allows you to easily perform acoustic analysis of speech, instrumental sounds, noise, and more. It can also be used to learn elementary speech analysis.

- Wavelet analysis

- Octave Band analysis

- FFT analysis

PCM sound recording and playback is possible up to about 180 seconds, and the audio waveform graph and FFT analysis graph are displayed. While playing back sound, you can search for sound at any point in time.


Zoom in on a specific 10 seconds of PCM data and play back the sound. Used to find a specific sound at the point in time you want to analyze.


For more information on "Wavelet Voice Sonogram" app, please visit the iOS product page on the AppStoreTM.

posted by toons at 15:30 | News