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2 results about "Phonation" patented technology
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The term phonation has slightly different meanings depending on the subfield of phonetics. Among some phoneticians, phonation is the process by which the vocal folds produce certain sounds through quasi-periodic vibration. This is the definition used among those who study laryngeal anatomy and physiology and speech production in general. Phoneticians in other subfields, such as linguistic phonetics, call this process voicing, and use the term phonation to refer to any oscillatory state of any part of the larynx that modifies the airstream, of which voicing is just one example. Voiceless and supra-glottal phonations are included under this definition.
A soft, flexible and communicative device for patients with laryngectomy and its method thereof
The present invention relates to a soft, flexible, and communicative device for patients with laryngectomy and its method thereof The present invention discloses the fabrication of soft, lightweight, skin-compatible, and reusable device for silent speech interfaces (SSIs). It further comprises the unique feature to recognize speech-related information using surface electromyography (sEMG). sEMG-based speech recognition operates on signals recorded from a set of sEMG sensors that are strategically located on the face (with the help of desired form factor) and measure muscle activity associated with the phonation, resonation, and articulation of speech. sEMG sensors are printed onto strategical locations on soft, stretchable, and biocompatible membrane shaped into a form-factor of a face mask. The silent speech interfaces (SSIs) can also be deployed in acoustically challenging environment or where privacy / confidentially is a desirable such as in defense or military application and it is cost effective with reliable speech recognition accuracy of 96.2%(>95 %).
Owner:SHITASHII INNOVATIONS PTE LTD
Flexible liquid metal sensor and voiced / unvoiced speech recognition system
A flexible liquid metal sensor and a voiced / unvoiced speech recognition system. The flexible liquid metal sensor attached to the throat is configured to detect a hybrid-modal signal consisting of laryngeal low-frequency muscle movements and acoustic vibrations during voiced or unvoiced speech of a person. By designing discrete and continuous sensor layouts to accurately capture the frequency of laryngeal vibrations during phonation and spatial distribution characteristics of muscle movements, pressure information in different directions and at different positions is measured. Laryngeal data acquisition and filtering are achieved by means of a signal acquisition and analysis system, so as to construct a relational dataset between laryngeal acoustic-vibration hybrid-modal signals and expressed speech semantics. By establishing a deep neural network training model based on time-frequency features to train the relational dataset, the content expressed by a person during voiced or unvoiced speech can be recognized, thereby meeting the requirements of persons with speech impairments and the general population for conveying the expressed content in environments where speech is impaired.
Owner:CHINA ACAD OF LAUNCH VEHICLE TECH