Acoustic features of normal-hearing pre-term infant cry (original) (raw)
Related papers
Acoustic measures of the cry characteristics of healthy newborns and newborns with pathologies
Journal of Biomedical Science and Engineering, 2013
Several hypotheses have been formulated as a result of observing spectrograms of the audio signals of the newborn infant cry in numerous studies. Our study is based on a few of these hypotheses. The purpose of this article is to differentiate pathological crying from healthy crying through acoustic cry analysis based on neurophysiological parameters of newborns. The automatic estimation of the characteristics of relevant cry signals, such as phonation, hyperphonation, and dysphonation, expressed as percentages, as well as unvoiced sound and mode change percentages, have enabled us to distinguish among the pathologies selected for this study. The results obtained have helped us to make quantitative associations between cry characteristics and pathological conditions affecting newborns.
Acoustic Features of Cry of Infants with High Risk Factors
https://www.ijhsr.org/IJHSR\_Vol.9\_Issue.12\_Dec2019/IJHSR\_Abstract.09.html, 2019
To determine the acoustic parameters which differentiate cries of high risk infants from normal infants, cry samples of 200 infants, which included 100 normal infants and 100 high risk infants were analyzed using PRAAT software. Results indicated that there were statistically significant differences between cries of infants with high risk factors and normal infants in Mean fundamental frequency, maximum fundamental frequency, jitter (Local), shimmer (Local), number of voice breaks and harmonic to noise ratio.
Acoustic quality of cry in very-low-birth-weight infants at the age of 1 1/2 years
Early Human Development, 2007
Background: Infant cry characteristics reflect the integrity of the central nervous system. Previous studies have shown that preterm infants and infants with neurological conditions have different cry characteristics such as fundamental frequency compared to healthy full-term infants. Cry characteristics of preterm infants after the first year of life have not been studied. Aims: The aim of this study was to assess the quality of cry in 1 1/2-year-old very-low-birthweight infants (VLBWI, V 1500 g at birth). Study subjects and design: Study groups included 21 VLBWI and 25 healthy full-term controls. Thirty seconds of pain cry after vaccination was recorded at well-baby clinics. The first cry utterance was acoustically analyzed using Praat software. The quality of cry was compared between the groups. In addition, the association of cry quality to patient characteristics, to developmental outcome, and to findings in brain imaging studies of the VLBWI was studied. Results: The cry response was elicited in 20 of the 21 VLBWI and in 20 out of 25 full-term infants. VLBWI had higher minimum fundamental frequency and fourth formant values. Patient characteristics that were associated with cry quality were 5-min Apgar scores, the occurrence of bronchopulmonary dysplasia, Bayley Psychomotor Index scores at 12 months, and current weight and head circumference.
Spectrum Analysis of Cry Sounds in Preterm and Full-Term Infants
2014
Long-time average spectrum (LTAS) was used to analyze the cry phonations of 26 infants under four months old; 16 of them are full-term and the other 10 infants are preterm. The results of first spectral peak, mean spectral energy, spectral tilt, high frequency energy were used to compare the cry phonatory between full-term and preterm infants. In addition, cry duration and percent phonation is also compared. According to previous studies, full-term and preterm infants’ crying behavior show significant differences because immature neurological development of preterm infants. Major findings in this study are: (1) There was no significant difference in unedited cry phonation across groups; (2) There was no significant difference in percent phonation across groups; (3) There was no significant difference in first spectral peak across groups, and no significant difference within groups could be found. However, full-term infants have higher first spectral peak than that of preterm infants...
JAMA Network Open
ImportanceAcoustic cry characteristics have been associated with severe medical problems in newborns. However, little is known about the utility of neonatal acoustic cry characteristics in the prediction of long-term outcomes of very preterm infants.ObjectivesTo evaluate whether acoustic characteristics of infant cry at neonatal intensive care unit (NICU) discharge are associated with behavioral and developmental outcomes at age 2 years in infants born very preterm.Design, Setting, and ParticipantsInfants born less than 30 weeks postmenstrual age (PMA) were enrolled from April 2014 through June 2016 as part of a multicenter (9 US university affiliated NICUs) cohort study and followed to adjusted age 2 years. Reported analyses began on September 2021. Data were analyzed from September 2021 to September 2022.ExposuresThe primary exposure was premature birth (<30 weeks PMA).Main Outcomes and MeasuresCries were recorded during a neurobehavioral examination administered during the wee...
Assessment of infant cry variability in high-risk infants
International Journal of Pediatric Otorhinolaryngology, 1989
Two studies were conducted to determine the relationship between variability in acoustic features of the infant cry and medical risk factors. In study 1, 3 groups of preterm infants (healthy, sick and CNS pathology) were compared with term infants at 40 weeks gestational age. The cry was analyzed by computer. The coefficient of variability of cry amplitude and the formant feature:; of the cry differed among the groups of preterm infants. In study 2, 3 groups of tern infants at low, moderate and high levels of hyperbilirubinemia were compared on the cry measures. More variability in the formant features of the cry was found in infants with higher levels of bilirubin. The correlation between the coefficient of l:mation in the cry formants and level of bilirubin was statistically significant. These two studies suggest that variability in the acoustic features of the cry relate to the medical status of the infant and may provide a measure of neurophysiological integrity.
Acoustic Analysis of Crying Signal in Infants with Disabling Hearing Impairment
Journal of Voice
Crying is a multimodal, dynamic behavior and the first way to communicate. Early identification of hearing impairment is critical for prevention of speech and language disorders. The present study aimed to assess the acoustic features of infant's cry signals to find possible differences between two groups including hearing-impaired (HI) infants and normal hearing (NH) control. Methods. The data were collected from 34 (17 HI, 17 NH) infants under 2 months of age. Recording of the infant cry signals was collected during the examination of the Babinski reflex and was subsequently submitted for acoustic analysis. The total duration of the recording for each infant was approximately 30 seconds. The acoustical features included fundamental frequency (F 0), formants (F 1 , F 2 , and F 3), intensity, jitter, shimmer, ratios of F 2 /F 1 and F 3 /F 1 , ratio of harmonic to noise, and voice break. The recording device was an Olympus ws-321M voice recorder with 44,100 Hz sampling frequency in the stereo form. Praat analysis software (version 27, 3, 5) was used to analyze the crying signals. The data were then statistically analyzed using SPSS version 21. Results. Acoustic analysis of the crying signals showed that HI infants have lower intensity and higher F 0 and voice break than NH infants. However, the other differences were not statistically significant. Conclusion. The results of the present study demonstrated that the acoustic components including F 0 , intensity, and voice break may be used as indices to discriminate HI infants from NH infants under 2 months of age. These findings can be increased our knowledge concerning the functional mechanisms of the vocal organ in HI and NH infants.
Frequential Characterization of Healthy and Pathologic Newborns Cries
American Journal of Biomedical Engineering, 2013
In this paper, we present recent developments in the characterizat ion of healthy and pathologic cries of newborns. We have identified and quantified acoustic characteristics that appear the most relevant in differentiating between pathological and healthy cries; such as fundamental frequency (F0), irregularity of F0 and presence of hyper-phonic modes. The results obtained are very encouraging, since the characteristics measured actually differentiate pathological cries fro m the cries of healthy babies.
Resonance Frequencies Behavior in Pathologic Cries of Newborns
Journal of Voice, 2015
Objective: A new approach to the automatic quantification of the acoustic parameters of the cries of healthy newborns and newborns with pathologies is presented. The purpose of the present study was to examine the relationship between acoustic parameters and pathologies of interest to characterize healthy and pathologic cries of newborns. Methods: Using Matlab, this study included automatic estimation of F0, RF1, RF2, percentage and tuning duration, transition duration, RF2 slope, and RF1:RF2 ratio. The database used includes full-term and preterm newborns, healthy and pathologic cries. It contains 3000 cry samples of 1s duration from 65 newborn babies aged from 1 day to 1 month old. Results: Statistical analysis results reveal that the distributions of these acoustic cry parameters depend on the pathology of newborn. In this work, we successfully identify the quantitative relationship between the acoustic cry characteristics we examined and the diseases we studied. Conclusion: Our deduction is that quantification of the variability of these parameters is useful for differentiating the cries of a healthy newborn from those of a newborn with a pathology, and that these data can be used for the early diagnosis of newborn diseases.
Inspiratory Phonation in Baby Voice
Journal of voice : official journal of the Voice Foundation, 2017
This study aimed to evaluate the developmental occurrence of inspiratory phonations (IPs) in the spontaneous cries of healthy infants across the first 10 weeks of life. This is a populational retrospective study. The spontaneous crying of 17 healthy infants (10 were male) was retrospectively investigated. Sound files of spontaneously uttered cries that were repeatedly recorded once per week for across the first 10 weeks of life were retrospectively analyzed. Frequency spectra and waveforms were used to identify the occurrence of IPs and to measure the duration and fundamental frequency (fo) of each instance of IP. A consistent number of IPs were identified across the 10-week period. All infants were observed to produce IPs in their spontaneous cries, although the frequency of occurrence was not consistent across infants. A marked sex difference was observed with female infants producing a higher number of IPs compared to males. The duration and fo of IPs did not differ significantly...