How To : Analyze Sound, Music and Speech Signals

April 22, 2012

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Analysis of sound signals can be performed by various algorithms and you can find many tools on the internet. Usually this method is used to analyze a sound signal, the result is to determine whether the voice is genuine or not, this could also be used to analyze the quality of music.

Then, how to analyze sound, music, and speech signals?

Sonogram is a highly flexible spectrogram and signal analysis toolset for the analysis of sound, music and speech signals in the frequency-domain with different algorithms. It’s Java based, so it’s a cross platform software.

Some algorithms used in the sonogram are :

fast fourier transformation (FFT)
linear predictive coding (LPC)
wavelet transformation
auto correlation
pitch detection
cepstral analysis

You will of need Java3D and JMF to get best performance of sonogram 3.0. To use Sonogram, just run it and open any sound files, then start to analyzing.