Fifth International Workshop on Models and Analysis of Vocal Emissions for Biomedical Applications (MAVEBA 2007)
Unlike many acoustic measures, Cepstral
Peak Prominence (CPP) has shown consistently high
correlations with subjective vocal quality ratings.
However, this superiority of the CPP index is reported
based on empirical results, with its theoretical
advantages not always clearly stated. In this paper the
properties of the CPP which makes it a good predictor
for vocal quality are addressed, as well as how it
differs from other measures. The reported
experimental setups of the previous studies are
analyzed, and reasons for the observed variability in
the results are given. After this discussion, the clinical
usefulness of CPP is addressed. This paper can be
useful for researchers as well as for clinicians, in
planning the experimental setup and interpreting the
relevance of the results.
Index Terms. Cepstrum, vocal quality, breathiness, roughness
Full Paper (reprinted with permission from Firenze University Press)
Bibliographic reference. Ferrer, C. A. / Bodt, M. S. de / Maryn, Y. / Heyning, P. Van de / Hernández-Díaz Huici, Maria E. (2007): "Properties of the cepstral peak prominence and its usefulness in vocal quality measurements", In MAVEBA-2007, 93-96.