We describe the technical details behind a novel voicebased human-computer interface designed to enable individuals with motor impairments to use vocal parameters for both discrete and continuous control tasks. Since discrete spoken commands are not ideally suited to such tasks, our methodology exploits a large set of continuous acoustic-phonetic parameters like pitch, loudness, vowel quality, ...

European vowels are mainly distinguished by the two lowest resonance frequencies (R1 and R2) of the vocal tract. Once the pitch frequency f(0) exceeds the value of R1 in normal speech, sopranos can deliberately "tune" R1 to match f(0). This increases loudness, uniformity of tone, and ease of singing, at some cost to intelligibility. Resonance tuning would be assisted if the pitch of the note wr...

This paper presents Universidade de Aveiro’s Voice Evaluation Protocol for European Portuguese (EP), and a preliminary inter-rater reliability study. Ten patients with vocal pathology were assessed, by two Speech and Language Therapists (SLTs). Protocol parameters such as overall severity, roughness, breathiness, change of loudness (CAPEV), grade, breathiness and strain (GRBAS), glottal attack,...

The different vowel sounds in normal speech are produced by adjusting the position of tongue, lips and teeth so that the vocal tract resonates at certain specific frequencies. In voiced speech, these resonances interact with the harmonics of the lower frequency signal from the vibrating vocal folds to produce associated peaks, or formants, in the output spectrum. Singers sometimes use these res...

BACKGROUND Reduced vocal intensity is a core impairment of hypokinetic dysarthria in Parkinson's disease (PD). Speech treatments have been developed to rehabilitate the vocal subsystems underlying this impairment. Intensive treatment programs requiring high-intensity voice and speech exercises with clinician-guided prompting and feedback have been established as effective for improving vocal fu...

accepted for Between Stress and Tone Conference in Leiden, June 2005 Authors: Christine Mooshammer, Jonathan Harrington Linguistic prominence and loudness: a systematic comparison between lexical word stress, sentence accent and vocal effort In Germanic languages, linguistic prominence is associated with an increase in duration, fundamental frequency, articulatory precision and intensity. Diffe...

Predation is a major ecological constraint shaping behaviour and communication in animals. Several fish species are known to modify their foraging, agonistic reproductive the presence of predators. However, close nothing about how predators affect sound production fishes. This paper reviews vocal increase chance survival by modifying intraspecific acoustic producing sounds directed towards Fiel...

Many studies of automatic speaker recognition have investigated which parameters that perform best. This paper presents an experiment where graphic representations of LTAS (Long Time Average Spectrum) were used to identify speakers from a closed set of disguised voices and determine how well the graphic method performed compared to an aural approach. Nine different speakers were recorded utteri...

The rapid momentum of deep neural networks (DNNs) in recent years has yielded state-of-the-art performance various machine-learning tasks using speaker identification systems. Speaker is based on the speech signals and features that can be extracted from them. In this article, we proposed a system developed DNNs models. acoustic prosodic signal, such as pitch frequency (vocal cords vibration ra...