Relationship of Cepstral Peak Prominence-Smoothed and Long-Term Average Spectrum with Auditory–Perceptual Analysis

Antonetti, Angélica Emygdio da Silva; Siqueira, Larissa Thaís Donalonso; Gobbo, Maria Paula de Almeida; Brasolotto, Alcione Ghedini; Silvério, Kelly Cristina Alves

doi:10.3390/app10238598

Cited by 17 publications

(6 citation statements)

References 52 publications

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“…The current results for CPPs (M = 16.3 dB; W = 16.1 dB) are comparable to those from previous studies including Núñez-Batalla et al (M = 16.0 dB; W = 16.4 dB) [27] and Angélica et al (16.44 dB) [27,28]. It was also higher than several previous studies [6,10,11,23].…”

Section: Discussionsupporting

confidence: 89%

Objective Voice Analysis of Mongolian Adults with a Normal Voice Across Age and Gender

Sodnompil

Palamdorj

Lkhuvsandagva³

et al. 2021

Cent. Asian j. Med. Sci.

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Objectives:We aimed to standardize main vocal parameters including fundamental frequency (F0), jitter, shimmer, harmonic-noise ratio (HNR), and smoothed cepstral peak prominence (CPPs) for Mongolian adults with a normal voice across a range of age groups and genders. Methods: A total of 360 voice recordings belonging to adults between 20 and 79 years old were analyzed. An acoustic analysis was performed using the Praat Program with a sustained vowel /a/ or /α/. A one-way analysis of variance and an unpaired t-test were used to measure differences in voice parameters for the age groups and genders. Results: The mean value of F0 was higher in women (254.4 ± 17.9 Hz) compared with men (149.6 ± 15.3 Hz). The average jitter was 0.26% ± 0.12% (W = 0.25 ± 0.13) and the shimmer was 1.95% ± 0.45% (W = 2.01% ± 0.45%). The mean value of HNR was 11.9 ± 1.33 dB (W = 12.1 ± 1.36 dB) and CPPs was 16.3 dB (W = 16.1 dB). Conclusion: The F0 and HNR significantly increased with age for men. The F0 and CPPs decreased, whereas the shimmer and HNR increased with age in women.

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Section: Discussionsupporting

confidence: 89%

Objective Voice Analysis of Mongolian Adults with a Normal Voice Across Age and Gender

Sodnompil

Palamdorj

Lkhuvsandagva³

et al. 2021

Cent. Asian j. Med. Sci.

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show abstract

“…13 Measurement does not require a stable fundamental frequency, unlike jitter, shimmer, and harmonics-to-noise ratio measures. 13,16 CPP is a reliable correlate to perceptual ratings of voice quality 17 and the severity and duration of voice disorders, 18 even for severely aperiodic signals such as tracheoesophageal voice. 19 Given these advantages and the large number of conditions in our study, we used CPP as an analog for voice quality.…”

Section: Measurement Of Cppmentioning

confidence: 99%

Effects of Laryngeal Vibratory Asymmetry and Neuromuscular Compensation on Voice Quality

et al. 2021

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Introduction: Vibratory asymmetry and neuromuscular compensation are often seen in laryngeal neuromuscular pathology. However, the ramifications of these findings on voice quality are unclear. This study investigated the effects of varying levels of vibratory asymmetry and neuromuscular compensation on cepstral peak prominence (CPP), an analog of voice quality.Study Design: In vivo canine phonation model. Methods: Varying degrees of vocal fold vibratory asymmetry were achieved by stimulating one recurrent laryngeal nerve (RLN) over 11 levels from threshold to maximal muscle activation. For each of these levels, phonation was induced at systematically varied combinations of neuromuscular compensation: three levels each of contralateral RLN stimulation (80%, 90%, and 100% of maximal), superior laryngeal nerve (SLN) activation (0%, 50%, and 100% of maximal), and airflow levels (500, 700, and 900 mL/s). Vocal fold symmetry was determined by assessing the opening phase of the vibratory cycle in highspeed video recordings. Voice quality was estimated acoustically by calculating CPP for each voice sample.Results: Eight hundred twenty-two phonatory conditions with varying degrees of vibratory asymmetry were evaluated. CPP was highest at vibratory symmetry. Increasing levels of asymmetry resulted in significant decreases in CPP. CPP increased significantly with increasing contralateral RLN activation. CPP was significantly higher at 50% SLN activation than 0% or 100% SLN activation.Conclusion: Voice quality, as approximated by CPP, is best at vibratory symmetry and deteriorates with increasing degrees of asymmetry. Voice quality may be improved with neuromuscular compensation by increased adduction of the contralateral vocal fold or increased vocal fold tension at mid-levels of SLN activation.

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“…CPPS values have been analyzed in studies, mainly in the comparison of individuals with voices classified as healthy and dysphonic individuals. The values presented range from 6.92 to 16.44 dB for healthy voices and from 4.57 to 14.99 for dysphonic voices (2,(23)(24)(25)(26)(27)(28) . These values confirm the findings of this study, in which the average CPPS for the vowel was 14.53 pretherapy and 16.37 post-therapy, values that indicate the vocal improvement that occurred with the therapeutic intervention.…”

Section: Discussionmentioning

confidence: 96%

Acoustic measurements of CPPS and AVQI pre and post speech therapy

Hofman,

Dassie-Leite,

Martins

et al. 2023

CoDAS

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Purpose To compare the acoustic measurements of Cepstral Peak Prominence-Smoothed (CPPS) and Acoustic Voice Quality Index (AVQI) at pre- and post-voice therapy times. Methods This is a before and after intervention study, with retrospective data collection. Twenty-two subjects with a mean age of 49.9 years participated in the study. The vocal therapy occurred between the years 2016 to 2019 in a teaching clinic, and the subjects had vocal samples collected before and after the therapeutic processes. CPPS and AVQI data extractions were performed during pre- and post-therapy. In order to characterize the sample, auditory-perceptual evaluation (APE) regarding the overall degree of vocal deviation at pre- and post-therapy moments was performed. The data were analyzed statistically. Results The APE data indicated a decrease in the median values of overall vocal deviation degree at the post-therapy stage for both the vowel (p=0.00) and number (p=0.00) samples. The average CPPS for the vowel was 14.53 pre-therapy and 16.37 post-therapy (p=0.01); for the number emission, it was 8.22 pre-therapy and 9.06 post-therapy (p=0.02), there was a difference in the CPPS of the vowel and numbers indicating vocal improvement at post-therapy. The average AVQI was 2.27 pre-therapy and 1.54 post-therapy (p=0.05). There was an improvement in the AVQI results, with borderline p-value. Conclusion Vocal therapy produced changes in the general degree of vocal deviation, as well as in CPPS and AVQI measurements, and the results at the post-therapy moment are similar to those of vocally healthy individuals.

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Relationship of Cepstral Peak Prominence-Smoothed and Long-Term Average Spectrum with Auditory–Perceptual Analysis

Cited by 17 publications

References 52 publications

Objective Voice Analysis of Mongolian Adults with a Normal Voice Across Age and Gender

Objective Voice Analysis of Mongolian Adults with a Normal Voice Across Age and Gender

Effects of Laryngeal Vibratory Asymmetry and Neuromuscular Compensation on Voice Quality

Acoustic measurements of CPPS and AVQI pre and post speech therapy

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