Properties of the cepstral peak prominence and its usefulness in vocal quality measurements
نویسندگان
چکیده
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.
منابع مشابه
The Study of Vocal Function in Patients With Early Laryngeal Carcinoma After Transoral Laser Microsurgery
Objective Today transoral laser microsurgery is considered as one of the first options to control early laryngeal cancer, and voice disorder is one of the inevitable complications of this therapeutic component. This study aimed to compare the vocal function in patients with early-stage laryngeal cancer following laser surgery with healthy individuals with normal voice quality using acoustic ana...
متن کاملCepstral peak prominence: A comprehensive analysis
6 An analytical study of cepstral peak prominence (CPP) is presented, intended to provide an insight into its meaning and relation with voice perturbation parameters. To carry out this analysis, a parametric approach is adopted in which voice production is modelled using the traditional source-filter model and the first cepstral peak is assumed to have Gaussian shape. It is concluded that the m...
متن کاملMulti-band and multi-cue analyses of disordered connected speech
The objective is to analyze vocal dysperiodicities in connected speech produced by dysphonic speakers. The analysis involves a speech variogram-based method that enables tracking instantaneous vocal dysperiodicities. The dysperiodicity trace is summarized by means of the signal-todysperiodicity ratio, which has been shown to correlate strongly with the perceived degree of hoarseness of the spea...
متن کاملCepstral analysis of vocal dysperiodicities in disordered connected speech
Several studies have shown that the amplitude of the first rahmonic peak (R1) in the cepstrum is an indicator of hoarse voice quality. The cepstrum is obtained by taking the inverse Fourier Transform of the log-magnitude spectrum. In the present study, a number of spectral analysis processing steps are implemented, including period-synchronous and periodasynchronous analysis, as well as harmoni...
متن کاملAerodynamic and acoustic features of vocal effort.
OBJECTIVES The purpose of this study was to determine the aerodynamic and acoustic features of speech produced at comfortable, maximal and minimal levels of vocal effort. STUDY DESIGN Prospective, quasi-experimental research design. METHOD Eighteen healthy participants with normal voice were included in this study. After task training, participants produced repeated syllable combinations at...
متن کامل