INTRODUCTION The frequency modulation system is a device that helps to improve speech perception in noise and is considered the most beneficial approach to improve speech recognition in noise in cochlear implant users. According to guidelines, there is a need to perform a check before fitting the frequency modulation system. Although there are recommendations regarding the behavioral tests that...

Research under this contract is broadly concerned with the relationship between the electroacoustic characteristics of hearing aids and their successful use by the hearing-impaired. We seek the elusive link between the physical and the behavioral: the extent to which differences in electroacoustic factors affect the listener's ability to understand speech through the aid. The present report is ...

The propagation of longitudinally polarized acoustic modes along thin piezoelectric plates (BN, ZnO, InN, AlN and GaN) is theoretically studied, aiming at the design of high frequency electroacoustic devices suitable for work in liquid environments. The investigation of the acoustic field profile across the plate revealed the presence of longitudinally polarized Lamb modes, travelling at veloci...

In mixed electroacoustic music it is common to find the erroneous conception according to which interaction should base itself exclusively on the fusion between instrumental writing and electronic devices, whereas the contrast between these sound spheres is as significant as the fusional states. Although fusion may be seen as the most important ingredient for an efficacious compositional strate...

We present a concept of "active material" with variable acoustic properties, being constituted of an electroacoustic transducer which acoustic impedance can be changed by an active mean. Among the different ways to obtain variable acoustic properties on an electroacoustic transducer's voicing face is the shunting of the transducer's electrical input. With such shunt devices, the acoustic impeda...

not hide the fact that pure electrical means were also very fruitful. In this article, I will raise issues linked to the study of electroacoustic music, some of which were discussed at the October 2003 meeting at the Pompidou Centre in Paris, organised by De Montfort University’s MTI group and Sorbonne’s MINT group under the auspices of IRCAM, which was the first such event in which internation...

BACKGROUND Hearing aids sold directly to consumers in retail stores or through the internet, without individual prescription by audiological professionals, are termed over-the-counter (OTC) devices. This study aimed to determine whether there was any change in the electroacoustic characteristics of OTC devices compared to research carried out a decade earlier. The previous results indicated tha...

This article tracks the composers’ desire for increased control over continuous musical variables through examples for music from the last few centuries. Examples are given on the development of notation and orchestration. A special focus is provided on electroacoustic music as a natural continuation of this development, and typical types of timbral development and structural discourse are brou...

The possibilities offered by electronic composition tools, while liberating, make difficult the dynamic use of organized rhythm in electroacoustic music. This paper explores a model stemming from interactive electroacoustic work by the author that adapts aspects of the hocketed, disjunct rhythmic textures of funk styles for use as a developmental musical parameter. These methods for generating ...