Cepstrum, peak picking

1. What does cepstral Peak Prominence measure?
2. How is cepstrum used for pitch detection?
3. What does a low cepstral peak prominence mean?
4. What is cepstrum in signal processing?

What does cepstral Peak Prominence measure?

Cepstral peak prominence (CPP) is an acoustic measure of voice quality that has been qualified as the most promising and perhaps robust acoustic measure of dysphonia severity [1].

How is cepstrum used for pitch detection?

Pitch detection is often done in the Cepstral domain because the Cepstral domain represents the frequency in the logarithmic magnitude spectrum of a signal. The Cepstrum is formed by taking the FFT (or IFFT) of log magnitude spectrum of a signal.

What does a low cepstral peak prominence mean?

Cepstral Peak Prominence (CPP) is an acoustic measure of dysphonia recommended by an ASHA expert panel. A lower CPP value is associated with a more dysphonic voice.

What is cepstrum in signal processing?

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.