OBJECTIVE To compare the spelling ability of schoolchildren from the fourth to sixth grades of the elementary schools in the private and public schools of Bauru, São Paulo, and to verify whether errors are overcome as studies progress and the hierarchy of errors as to how often they occur. METHODS A dictation was applied to 384 schoolchildren: 206 from the private schools: 74 were at the four...

Large vocabulary continuous speech recognition (LVCSR) is an important basis for the application development of speech recognition technology. We had constructed Japanese common LVCSR speech database and have been developing sharable Japanese LVCSR programs/models by the volunteer-based efforts. We have been engaged in the following two volunteer-based activities. a) IPSJ (Information Processin...

This article reports a contrastive experiment about the use of Text-To-Speech (TTS) synthesis instead of prerecorded utterances in a dictation exercise submitted to students of European Portuguese as a second language (PSL). Forty sentences were extracted from a PSL student book. Twenty of them were synthesized and the other twenty were directly taken from the pre-recorded audio documents of th...

This paper deals with optimization techniques that can make very large vocabulary voice dictation applications deployable on recent mobile devices. We focus namely on optimization of signal parameterization (frame rate, FFT calculation, fixedpoint representation) and on efficient pruning techniques employed on the state and Gaussian mixture level. We demonstrate the applicability of the propose...

This study directly compared four patients who, to varying degrees, showed the characteristics of deep dyslexia, dysphasia and/or dysgraphia--i.e., they made semantic errors in oral reading, repetition and/or spelling to dictation. The "primary systems" hypothesis proposes that these different conditions result from severe impairment to a common phonological system, rather than damage to task-s...

PURPOSE To determine the performance of normal subjects with low educational level on the M1-Alpha test, and to obtain parameters for potential use in the clinical evaluation of aphasic patients with low educational level. METHODS Participants were 30 normal subjects with low educational level (one to four years of schooling), 15 male and 15 female, with ages over 18 years and below 60 years....

Speech recognition technology continues to improve, but users still experience significant difficulty using the software to create and edit documents. The reported composition speed using speech software is only between 8 and 15 words per minute [Proc CHI 99 (1999) 568; Universal Access Inform Soc 1 (2001) 4], much lower than people’s normal speaking speed of 125–150 words per minute. What caus...

We conducted four experiments to investigate whether adults can exert attentional strategic control over nonlexical and lexical processing in written spelling to dictation. In Experiment 1, regular and irregular words were produced either in a nonword context (regular and irregular nonwords) or in a word context (high-frequency regular and irregular words), whereas in Experiment 2, the same set...

This study analyzes the extent to which dictation performance and linguistic features (linguistic difficulty of sentences during dictation) can predict general proficiency in English as a second language (ESL) learners. To this end, constructed multiple linear non-linear regression models that ESL (in independent variables were scores sentences) verified correlation between predicted observed p...