Harmonics-to-noise ratios (HNRs) are affected by general aperiodicity in voiced speech signals. To specifically reflect a signal-toadditive-noise ratio, the measurement should be insensitive to other periodicity perturbations, like jitter, shimmer, and waveform variability. The ensemble averaging technique is a time-domain method which has been gradually refined in terms of its sensitivity to j...

This paper presents an algorithm which works with oesophageal voice and aims to automatically calculate different measurements of shimmer parameter. The evaluation has required a novel processing for the detection of the periodicity cycles and instants in order to calculate amplitude perturbations of vocal signals. The designed algorithm performs the calculusof pitch in an automatic way with a ...

IMPORTANCE This research contributes to the pediatric objective voice measurement database while identifying comparable measurements between 2 available voice analysis systems. OBJECTIVE To compare selective normative pediatric acoustic variables between the Multi-Dimensional Voice Program (MDVP) and the Voice Evaluation Suite (VES) computerized voice analysis systems. Additionally, it descri...

OBJECTIVES To describe the mean voice changes of 22 female teachers during a typical workday, examine the inter- and intra-subject variability, and establish a typology of different voice patterns during the workday. METHODS For each participant, fundamental frequency (F0), harmonics-to-noise ratio (HNR), jitter, and shimmer were measured on sustained vowels at the beginning and at the end of...

Animal Studies Journal 2021 10(2): [Review] Deborah Bird Rose. Shimmer: Flying Fox Exuberance in Worlds of Peril. Edinburgh: Edinburgh University Press, 2022. 240 pp.

BACKGROUND Injury of the inferior laryngeal nerve is not the only cause of voice alteration after thyroidectomy; many patients notice minimal changes immediately after operation, without evidence of inferior laryngeal nerve damage. We hypothesized that there may be other causes for voice modification, such as injuries of the superior laryngeal nerve, prethyroid strap muscles, and cricothyroid m...

Objective To investigate the effects of septoplasty on the acoustic parameters of voice. Methods In total, 23 patients (seven females and 16 males; average age, 32.13±9.67 years; age range: 19-56 years) with a diagnosis of nasal septal deviation and who underwent septoplasty were included. Preoperative and on postoperative 30th day, acoustic analysis of voice was conducted for all patients. T...

UNLABELLED Phonological Disorder is a disturbance of primary manifestation of undefined causes that makes speech become unintelligible. The analysis of vocal parameters becomes important in the process of diagnosis of this disorder, since voice disorders could interfere in the production of speech sounds. AIM The objective of this study was to verify vocal characteristics related to the inten...