Predicting and mitigating acoustic levels become critical because of the harsh environment during space vehicle lift-off. This paper aimed to study aero-acoustic a rocket The sound propagation within launch event was studied using dedicated computational fluid dynamics (CFD). resolution all phenomena that occur is unfeasible. We discuss turbulence simplification propose feasible simulation thro...

Speaker-independent speech recognition systems are being used with increasing frequency for command and control applications. To date, users of such systems must contend with the fragility of recognition with subtle changes in language usage and environmental acoustics. We describe work on coupling speech recognition systems with temporal probabilistic user models that provide inferences about ...

Tinnitus is an auditory disorder very difficult to treat. Whereas up until now there not a “cure” for tinnitus, the most extended treatment combines counselling with sound therapy. When this broadband noise in audio frequency band, protocol named tinnitus retraining Even though was proposed at beginning as stimulus therapy, many other sounds have been subsequently and used, including tones, ban...

with the aim of identifying failure mechanism in oriented strand boards, failure behavior of wood strands under tensile load was investigated using acoustic emission technique. resinated and unresinated strands were arranged at top, middle and bottom section of the board before pressing. tensile and acoustic emission tests were performed simultaneously on treated and control samples. using tens...

The acoustic environment state of four recreational trails in Taichung was investigated. First, the basic forms, spatial proportions, characteristics trail interfaces, and sound sources spaces were Second, pressure level measurement a questionnaire survey conducted relation to trails. measurements demonstrated that levels are lower than permissible exposure limit 90 dB(A) recommended by Occupat...

Our long-term objectives are the study of the ocean environment and its impact on high-speed acoustic communication (acoustic noise, bottom type, surface wave activity, velocity profiles, bubbles), the comparison between predicted and measured communication performance through modeling, and to identify the impact of large scale spatial diversity on acoustic communications using multiple sources...