Treffer: Spectrographic Voice Analysis Protocol (SAP): Convergent, Concurrent, and Accuracy Validity.

Title:
Spectrographic Voice Analysis Protocol (SAP): Convergent, Concurrent, and Accuracy Validity.
Authors:
da Silva ACF; Universidade Federal da Paraíba (UFPB), Decision Models and Health Program, João Pessoa, Paraíba, Brazil., de Araújo Lima-Filho LM; Universidade Federal da Paraíba (UFPB), Decision Models and Health Program, João Pessoa, Paraíba, Brazil., Almeida AA; Universidade Federal da Paraíba (UFPB), Decision Models and Health Program, João Pessoa, Paraíba, Brazil., Coêlho HFC; Universidade Federal da Paraíba (UFPB), Decision Models and Health Program, João Pessoa, Paraíba, Brazil., Ribeiro VV; Universidade de Brasília (UNB), Speech-Language and Hearing Department, Brasília, Federal District, Brazil., Lopes LW; Universidade Federal da Paraíba (UFPB), Decision Models and Health Program, João Pessoa, Paraíba, Brazil. Electronic address: lwlopes@hotmail.com.
Source:
Journal of voice : official journal of the Voice Foundation [J Voice] 2026 Jan; Vol. 40 (1), pp. 119-130. Date of Electronic Publication: 2023 Oct 19.
Publication Type:
Journal Article; Validation Study
Language:
English
Journal Info:
Publisher: Mosby Country of Publication: United States NLM ID: 8712262 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1873-4588 (Electronic) Linking ISSN: 08921997 NLM ISO Abbreviation: J Voice Subsets: MEDLINE
Imprint Name(s):
Publication: 2003- : St. Louis, MO : Mosby
Original Publication: [New York, N.Y.] : Raven Press, 1987-
MeSH Terms:
Voice Quality* , Dysphonia*/diagnosis , Dysphonia*/physiopathology , Speech Production Measurement*/methods , Speech Acoustics* , Acoustics* , Signal Processing, Computer-Assisted*, Humans ; Reproducibility of Results ; Predictive Value of Tests ; Female ; Male ; Middle Aged ; Adult ; Sound Spectrography ; ROC Curve ; Young Adult ; Aged ; Area Under Curve ; Severity of Illness Index
Contributed Indexing:
Keywords: Acoustic analysis; Spectrography; Validation study; Voice; Voice disorders
Entry Date(s):
Date Created: 20231020 Date Completed: 20260110 Latest Revision: 20260113
Update Code:
20260113
DOI:
10.1016/j.jvoice.2023.09.009
PMID:
37863674
Database:
MEDLINE

Weitere Informationen

Objective: To verify the convergent and concurrent validity of the Spectrographic Voice Analysis Protocol (SAP) and its accuracy to discriminate dysphonic from nondysphonic patients.
Method: The study used 82 vowel /Ɛ/ samples and their respective narrowband spectrograms, analyzed with SAP. Cepstral peak prominence (CPP) and cepstral peak prominence smoothed (CPPS) verified the convergent validity of the SAP total score, while the general grade of vocal deviation (GG) verified the concurrent validity of the SAP total score. The ROC (receive operator curve) curve and its accuracy, sensitivity, and specificity values, positive predictive value (PPV) and negative predictive value (NPV), and positive likelihood ratio (LR+) and negative likelihood ratio (LR-) verified the accuracy of the SAP score to discriminate dysphonic from nondysphonic individuals.
Results: Dysphonic and nondysphonic had different SAP total scores. In the convergent validity, the SAP score had a weak and moderate negative correlation, respectively, with CPP and CPPS, as well as a moderate positive correlation with GG. SAP performed well in discriminating dysphonic from nondysphonic individuals (area under the curve = 82.0%; sensitivity = 91.7%; specificity = 51.7%; PPV = 93.7%; NPV = 44.0%; LR+ = 6.21; LR- = 0.53) based on the 8-point cutoff score.
Conclusion: SAP has convergent validity with CPP and CPPS and concurrent validity with GG. The SAP total score performed well in discriminating dysphonic from nondysphonic individuals. However, the specificity, NPV, and LR- values justify cautiously using SAP, always in combination with other information in clinical voice assessment.
(Copyright © 2025 The Voice Foundation. Published by Elsevier Inc. All rights reserved.)

Declaration of Competing Interest The authors declare the following financial interests/personal relationships, which may be considered as potential competing interests: Leonardo Wanderley Lopes reports administrative support and article publishing charges were provided by Paraiba Federal University Health Sciences Center.