This paper describes an Android mobile application that allows voice communications through short-range wireless networks, mainly Bluetooth and Wi-Fi. The application is able to replicate as close as possible the behavior of a twoway radio device. The application is designed to receive audio streams from multiple devices simultaneously and to send them. The main design considerations of the app...

Recordings of lectures are a cost-efficient and easy-to-use way to produce elearning content. In a university context with tight financial constraints they can only be used if the production process is automated to a high degree and a manual intervention is not necessary. With the emergence of powerful mobile devices like PDAs, mobile phones or audio players with audio and video playback it is ...

In recent mobile phones, car navigation systems, digital TVs, and other consumer electronic devices, there is a trend toward digital convergence in which a single device has the ability to process various kinds of applications. At the same time, considering the processing of media content, these devices must be capable of encoding and decoding video images and audio data based on MPEG2, MPEG4, ...

The HTML5 standard is wide-spread on mobile devices. In combination with the Web Audio API, it allows for massively distributed real-time audio rendering. But timing issues exist, mainly because of the lack of standard inter-device synchronisation. This paper proposes a synchronisation solution based on HTML5. Using a shared reference time, we achieved the distributed rendering of audio events ...

In this paper we describe a new kind of asynchronous discussion using audio instead of text over mobile devices. The format of the discussion surrounds both real content and Usenet-style topics. Users engage in public discussion using a combination of spatial and audio navigation.

Advances in technology have led to the development of several implantable bone conduction devices (BCD) employing bone conduction stimulation for the treatment and rehabilitation of mixed and conductive hearing loss [1]. BCD are alternatives when the benefit of conventional prosthetic equipment is limited or contraindicated [1,2]. BCDs directly stimulate the inner ear by skull vibration [1]. Bo...

This paper presents two prototypes designed in order to enable the automatic adjustment of audio output on mobile devices. One is directed to communication scenarios and the other to media control scenarios. The user centered methodology employed on the design of these prototypes involved 26 users and is also presented here. Once the prototypes were implemented, a usability study was conducted....