The purpose of this MATLAB program is to compute the signal to noise ratio (SNR) of audio files.

 

Input files can be of various formats : pulse-density modulation (PDM), raw samples (PCM), in text or binary format.

 

The program concentrates its analysis in the audio and voice bands.

 

It can weight the results using ITU/CCIR or using dBA curves.

 

Optionally, it can cope with jitter and other types of distortions before computing SNR.

 

Code folder is http://firmware-developments.com/WEB/P6x/THDN/

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The documentation is here : http://firmware-developments.com/WEB/P6x/THDN/