Functional data analyses of lip motion.
نویسندگان
چکیده
The vocal tract's motion during speech is a complex patterning of the movement of many different articulators according to many different time functions. Understanding this myriad of gestures is important to a number of different disciplines including automatic speech recognition, speech and language pathologies, speech motor control, and experimental phonetics. Central issues are the accurate description of the shape of the vocal tract and determining how each articulator contributes to this shape. A problem facing all of these research areas is how to cope with the multivariate data from speech production experiments. In this paper techniques are described that provide useful tools for describing multivariate functional data such as the measurement of speech movements. The choice of data analysis procedures has been motivated by the need to partition the articulator movement in various ways: end effects separated from shape effects, partitioning of syllable effects, and the splitting of variation within an articulator site from variation from between sites. The techniques of functional data analysis seem admirably suited to the analyses of phenomena such as these. Familiar multivariate procedures such as analysis of variance and principal components analysis have their functional counterparts, and these reveal in a way more suited to the data the important sources of variation in lip motion. Finally, it is found that the analyses of acceleration were especially helpful in suggesting possible control mechanisms. The focus is on using these speech production data to understand the basic principles of coordination. However, it is believed that the tools will have a more general use.
منابع مشابه
Reconstruction of Buccal Mucosa, Upper and Lower Lip Defect Using Free Radial Forearm Flap with Palmaris Longus Tendon: A Case Presentation
Introduction: Advanced lip carcinomas can invade adjacent structures. Performing surgery for these cancers will lead to defects in this anatomically and functionally important area and will cause post-op difficulties such as drooling, speech alterations and aesthetic considerations, if not properly managed. Case Report: In this study, we will introduce a radial forearm free flap with palmari...
متن کاملEffect of Reconstructive Surgery and Functional Brace Treatments on Kinesthesia in Patients with Acute Anterior Cruciate Ligament Tear
Objective: Anterior cruciate ligament (ACL) tear is one of the most common knee injuries. Kinesthesia after ACL tear is impaired. In this study, using hybrid generalized estimation equations (GEE) can be efficient method in analyzing correlated data, we try to evaluate the effects of reconstruction surgery and functional brace with controlled confounding factors in improving the patients’ kines...
متن کاملFordyce Happiness Program and Happiness in Mothers of Children with a Cleft Lip and Palate
Introduction: Facial deformities and aesthetic and functional anomalies in children may be a cause of real distress in families. Problems faced by parents in coping with a child’s anomaly can be upsetting and lead parents to exhibit over-severe behavior. The present study was conducted in order to study the effect of happiness program on the happiness of the mothers of children with a cleft lip...
متن کاملپیامد موارد جراحی سرطان سلول سنگفرشی در 69 بیمار مبتلا به سرطان لب تحتانی
Background and Aim: The aim of this study was to evaluate surgery approach outcomes in patients with squamous cell carcinoma (SCC) of lower lip. Methods: We retrospectively analyzed medical records of patients that diagnosed with SCC of the lower lip at Razi hospital at Tehran University of Medical Sciences in a 5 year period. Data analysis included descriptive statistics and bivariate analy...
متن کاملبررسی اثر هشت هفته تمرین هوازی بر شاخصهای عملکردی و دامنه حرکتی زانوی مردان سالمند فعال مبتلا به استئوآرتریت زانو
Background: Osteoarthritis is the most common joint disease, and the main histopathologic (pathology) tissue in the local destruction of the articular cartilage. This study was done to study the effect of eight weeks aerobic training on functional indicators and range of motion in active older men with knee osteoarthritis. Methods: Population includes active older men with knee osteoarthritis ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- The Journal of the Acoustical Society of America
دوره 99 6 شماره
صفحات -
تاریخ انتشار 1996