cepstrumtekniikoihin
Cepstrumtekniikoihin, often referred to simply as cepstrum analysis, is a signal processing technique used to analyze non-linearities in signals, particularly in audio and speech processing. It is derived from the word "spectrum" by reversing the order of its letters. The cepstrum is calculated by taking the inverse Fourier transform of the logarithm of the magnitude of a signal's Fourier transform. This process separates the characteristics of a signal that are due to the source (like vocal cords) from those that are due to the transmission medium or system (like the vocal tract).
The cepstrum reveals periodic components in the log-spectrum, which correspond to the pitch or fundamental frequency