![]() ![]() There were statistically significant differences between the groups only for the following vocal attributes of the CAPE-V: overall severity (p=0.01), roughness (p=0.00), and pitch (p=0.01). In the qualitative assessment of pitch, eight (61.54%) patients in the CAH group showed low vocal pattern and eight (61.54%) individuals in the group without CAH presented high vocal pattern. ![]() Acoustic (PRAAT program) and auditory-perceptual (Consensus Auditory-Perceptual Evaluation of Voice - CAPE-V) analyses were conducted. Voice sample collection was performed individually in a quiet environment with participants properly seated. The study sample consisted of 28 volunteers: 14 individuals diagnosed with CAH, followed up by the multiprofessional team of the GOC-UFBA, and 14 46,XX individuals without vocal changes and endocrine and/or genetic pathologies. This is a descriptive, exploratory, cross-sectional study. Speech programs provide similar results in the acoustic analysis of pathological voices.ĭescribe the vocal profile of 46,XX congenital adrenal hyperplasia (CAH) patients followed up at the Genetics Outpatient Clinic of the Federal University Bahia (GOC-UFBA). The results indicated that the sound spectrogram and the numerical values obtained for shimmer and jitter were similar for both computer programs, even though types 1, 2 and 3 voice samples were analysed. As a final result, the acoustic parameters of jitter, shimmer, harmonics-to-noise ratio and fundamental frequency were obtained from the 2 acoustic analysis programs. They then determined the presence of noise in the spectrogram, using the Yanagihara grades, as well as the presence of subharmonics. The spectrographic analysis consisted of obtaining a narrow-band spectrogram from the previous digitalised voice samples by the 2 independent observers. Speech 3.0 and a second one used the Praat program (Phonetic Sciences, University of Amsterdam). We studied a total of 99 voice samples from individuals with Reinke's oedema diagnosed using videostroboscopy. Voice acoustic parameters (jitter, shimmer, harmonics-to-noise ratio, fundamental frequency) (quantitative). Narrow-band spectrogram (the presence of noise according to Yanagihara, and the presence of subharmonics) (semi-quantitative). Praat voice software#Speech and the free software Praat in 2 fields: 1. The purpose of the present study was to correlate the results obtained by the commercial software Dr. In this study we focused on acoustic voice analysis. However, it's doubtful that anyone who can really make use of Praat will be unfamiliar with its tools or its techniques.The European Laryngological Society (ELS) basic protocol for functional assessment of voice pathology includes 5 different approaches: perception, videostroboscopy, acoustics, aerodynamics and subjective rating by the patient. Once we'd recorded a sound, we could view it as a waveform (two waveforms for stereo signals) in the SoundEditor window Save, Cut, and Paste it and open longer files with a LongSound feature that keeps most of longer sound files on your disk instead of being written to memory every time you play them.įrom there, Praat delves into various analysis methods, and quickly left us speechless despite its clear and detailed explanations. This intriguing capability let us create tones like sine waves with noise added. We were able to create sound recordings not only from an external source such as a microphone but also from a WAV file and even directly inside Praat via formulas. ![]() Praat voice manual#The process for recording sound is a bit complicated, though the manual indicates it's easier in Linux and Mac versions of the program. However, most handheld note-takers record monophonic sound, and they are commonly used in fieldwork. Mono recordings are preferable for analyzing speech, but mono recording equipment is uncommon outside the lab. Praat lets you make both mono and stereo recordings. We began by recording speech via the system microphone and sound card. We started by opening the Help file, which offers an excellent introduction to Praat and an overview of its functions before delving into the science. Praat's interface consists of two parts, Praat Objects and Praat Picture. It also creates high-quality images of data suitable for publication. It supports speech synthesis, including articulatory synthesis. While it's not difficult for lay users to pick up, it's designed for linguists and students of linguistics as well as other scientists and researchers who need to analyze human speech. Praat is Dutch for "talk." It's also the name of this lab-quality phonetics freeware that can record and analyze speech sounds in mono or stereo. ![]()
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