Volver al Inicio

Ciencia de la Voz

Guías basadas en evidencia sobre análisis acústico de voz para fonoaudiólogos

10 de mayo de 202614 min de lecturaJorge C. Lucero

Acoustic Voice Assessment via Telehealth: What Survives the Compression

Medicare telehealth for SLP services is extended through 2027—but can clinicians trust acoustic measurements collected over Zoom or Teams? Evidence shows F0 survives platform transmission while CPPS, HNR, and SPL measures degrade. Learn why asynchronous recording outperforms live capture and how to build a defensible telepractice acoustic protocol.

TelehealthTelepracticeRecording ProtocolClinical Workflow
Leer artículo completo
9 de mayo de 202615 min de lecturaJorge C. Lucero

MPT and DSI: A Clinical Implementation Guide

Maximum Phonation Time and the Dysphonia Severity Index are two of the most widely used objective voice measures—but small protocol differences and cross-system variability can produce misleading values. Learn the correct recording protocol, normative ranges, the Wuyts DSI formula, what each component measures, and the limitations clinicians need to know.

MPTDSIClinical ProtocolVoice Assessment
Leer artículo completo
8 de mayo de 202616 min de lecturaJorge C. Lucero

CAPE-V and GRBAS for the Acoustic Era: Reconciling Perceptual and Acoustic Voice Assessment

No acoustic parameter "is" a CAPE-V dimension—but different parameters predict different ratings. Learn which measures track Severity, Breathiness, Roughness, and Strain, why one global index cannot replace four perceptual ratings, and how to use acoustic analysis to support (not substitute) clinical judgment.

CAPE-VGRBASPerceptual AssessmentClinical Guide
Leer artículo completo
27 de marzo de 202618 min de lecturaJorge C. Lucero

Formant Analysis for Voice Clinicians: Beyond F0

Master vocal tract resonances for clinical practice. Learn F1/F2/F3 interpretation, gender-affirming voice therapy applications, resonant voice mechanisms, vowel space area for dysarthria, Praat settings by speaker type, and when formant analysis adds value.

FormantsGender-AffirmingResonanceDysarthriaAcoustic Analysis
Leer artículo completo
5 de marzo de 202616 min de lecturaJorge C. Lucero

Vocal Biomarkers for Cognitive Screening: What SLPs Need to Know

The voice reveals more than voice quality—emerging research shows acoustic biomarkers can detect early cognitive impairment with up to 89% accuracy. Learn which parameters matter, current validation status, and what this means for speech pathologists as AI-driven screening approaches clinical deployment.

Vocal BiomarkersCognitive ScreeningAIEmerging Research
Leer artículo completo
20 de febrero de 2026 min de lecturaJorge C. Lucero

Spectrogram Reading for SLPs: A Visual Guide to Voice Quality

The spectrogram is the most powerful visual tool in voice assessment—but many clinicians find it intimidating. Learn wideband vs narrowband analysis, Titze's voice signal typing (Types 1-4), and how to read harmonic patterns, breathiness, roughness, and pathology indicators.

SpectrogramVisual AnalysisClinical GuideVoice Signal Typing
Leer artículo completo
20 de enero de 202618 min de lecturaJorge C. Lucero

Gender-Affirming Voice Therapy: Why Pitch Is Only Part of the Story

F0 explains only 42% of perceived gender—resonance, intonation, and speech patterns account for the rest. Learn evidence-based pitch targets (180 Hz threshold), why formants require 20% elevation, hormone effects, WPATH SOC-8 guidelines, and how to track progress with acoustic measures.

Gender-AffirmingVoice TherapyF0 TargetsFormants
Leer artículo completo

Contenido Educativo: Esta guías tienen el fin educativo de apoyar la práctica clínica basada en evidencia. El contenido no pretende ser consejo médico. Las decisiones clínicas deben ser tomadas por profesionales de la salud calificados basándose en la evaluación individual del paciente.