Software and materials developped by the LPL
Computerized devices for perception testsThe LPL has a long research activity in auditory perception and for that it has recognized expertise in the development of numerous test management tools.
| PERCEVAL (PERCeption EVALuation Auditive & Visuelle) is a computerized device for auditory and visual perception tests developped by the LPL. It provides a complete environment for the preparation, configuration, procurement and collection of experience data. PERCEVAL allows to build experiments where the subject is exposed to a series of visual and / or audio stimuli. It is therefore specially adapted for the study of the perception of speech and language.
Physiological investigation of speech production
|EVA (L’Evaluation Vocale Assistée) is a system for the diagnosis of vocal pathologies. It is based on the study of most parameters of speech production: sound, pitch, voice intensity, airflows, pressures, etc. Equipped with numerous sensors allowing these measurements, it allows to refine the diagnosis of the practitioner, to follow a surgical intervention, a pharmaceutical treatment or a reeducation. Current studies focuse on complex clinical situations, particularly in Parkinson's disease and vocal forcing, which are "difficult" models for measure and contribute to refining and validating procedures.
Editing, manipulating and processing speech signalsObservation, editing, processing and labeling of signals has always been a major technical concern for a laboratory which is studying large masses of acoustic and physiological signals. Two editors are distributed:
|PHONEDIT is a signal editor developed for voice and speech research. It is used to visualize, segment, mark, measure and process acoustic, aerodynamic, palatographic and kinesiographic parameters. PHONEDIT is able to read the majority of files from different computer systems used by phoneticians. It is available on the lab server as a free, downloadable version. A new version integrating visual sources and allowing synchronization different sources of data is being developed.
|PCA or Plateforme de Communication Alternative is a software to help verbal or non-verbal communication. The software proposes several solutions adapted to the communication capacities and to the degree of motricity of the user:
|SPPAS (SPeech Phonetization Alignment and Syllabification) is a software that automatically or semi-automatically produces phonetic annotations that include segmentation into sentences, words, syllables and phonemes from sound files and their transcription.
|PROSODIA is a software to help the learning of the prosody of English (extension possible to other languages or to re-education).