In this paper, a review of several features of the acoustic vector field will be presented. The theoretical foundation for the acoustic energy flow will be used to describe the concepts of the active and reactive components of the complex acoustic intensity field. Recently established phenomenology associated with the flow of acoustic intensity near planar boundaries via the visualization of st...

The aim of this study is to determine whether fluent and non-fluent aphasics preserve the acoustic marks of lexical stress in a repetition task involving regular oxytone and paroxytone disyllabic Spanish words in isolation. Acoustic analyses of each syllable (duration, F0, intensity) were performed. These data were then subjected to mixed-effects regression analyses, separately for oxytones and...

Difference limens (DLs) for changes in electric current were measured from multiple electrodes in each of eight cochlear-implanted subjects. Stimuli were 200-microseconds/phase biphasic pulse trains delivered at 125 Hz in 300-ms bursts. DLs were measured with an adaptive three-alternative forced-choice procedure. Fixed-level psychometric functions were also obtained in four subjects to validate...

Diverse animal species, from insects to humans, utilize acoustic signals for communication. Studies of the neural basis for song or speech production have focused almost exclusively on the generation of spectral and temporal patterns, but animals can also adjust acoustic signal intensity when communicating. For example, humans naturally regulate the loudness of speech in accord with a visual es...

Historically, auditory pitch has been considered to be a function of acoustic frequency, with only a small effect being due to absolute intensity. Yet we found that when tones are Doppler shifted so that frequency drops, the pitch dramatically rises and falls, closely following the pattern of dynamic intensity change. We show that continuous intensity change can produce pitch variation comparab...

This paper proposes and examines a direct formulation in space domain of the so-called supersonic acoustic intensity. This quantity differs from the usual (active) intensity by excluding the circulating energy in the near-field of the source, providing a map of the acoustic energy that is radiated into the far field. To date, its calculation has been formulated in the wave number domain, filter...

In this study the predictability of 15 discrete emotions (e.g. fear, uncertainty, rage, anger, sadness, love, tenderness, satisfaction, joy, sexual pleasure, surprise) and 6 bipolar emotional dimensions (feeling good/bad, strong/ weak, certain/uncertain, tense/relaxed, excited/calm, sympathetic/not sympathetic) by 39 acoustic parameters was tested by multiple regression analysis. The stimulus m...

The present paper provides an acoustic description of macrointensity patterns of stress units (prosodic words) in read Czech, as reflected by the intensity of syllable nuclei. Normalized intensity values show that there is a gradual macrodynamic decrease over the inter-pause group, followed typically by a significant intensity reset. Local intensity drops occur between the last two syllables of...