Howtosignalprocessing
- What is difference between spectrum and cepstrum?
- What is cepstrum of a signal?
- Why is cepstrum analysis used?
- What is cepstrum frequency?
What is difference between spectrum and cepstrum?
when a signal is analyzed in time domain they are called spectrum or you can say that signal is in spectral domain. but when the signal is analyzed in frequency domain and amplitude of such signal is taken to analyzed the signal then they are said to be in cepstral domain.
What is cepstrum of a signal?
The cepstrum is a representation used in homomorphic signal processing, to convert signals combined by convolution (such as a source and filter) into sums of their cepstra, for linear separation. In particular, the power cepstrum is often used as a feature vector for representing the human voice and musical signals.
Why is cepstrum analysis used?
Cepstrum Analysis is a tool for the detection of periodicity in a frequency spectrum, and seems so far to have been used mainly in speech analysis for voice pitch determination and related questions.
What is cepstrum frequency?
Cepstrum of speech segment. The most visually prominent feature in this cepstrum is the peak near quefrency 7 ms. It corresponds to a fundamental frequency of 1000/(7 s) = 143 Hz.
