A 0.5 μm 3V CMOS mixed-mode audio processor is presented. It is mainly composed of eleven low noise input channels and a dedicated digital audio processor. Analog input signals are provided through an eleven microphone array. The chip size is about 50 mm2 and the power dissipation is less than 100 mW. This circuit is dedicated to multimedia applications.

The proton exchange membrane (PEMFC) fuel cell represents the energy of the future, in parallel with hydrogen. However, this technology must meet many technical challenges related to performance and durability before being sold on a large scale. It is well known that these challenges are closely linked to water management. This paper develops and implements a model of PEM fuel for simulation to...

adapted from Noll (2000) Audio compression or audio coding algorithms are used to obtain compact digital representations of high-fidelity (wideband) audio signals for the purpose of efficient transmission or storage. The central objective in audio coding is to represent the signal with a minimum number of bits while achieving transparent signal reproduction, i.e., generating output audio that c...

This research aims to improve the vocabulary knowledge of Thai EFL students by using audio-visual aids as instructional tools. Hopefully, this study serves an initial foundation develop students’ and benefit pedagogical development in Thailand. Consequently, aimed explore effectiveness instruction acquiring knowledge, with a specific focus on form-meaning links primary school students...

This paper presents a classification scheme for audio signals using high-level feature descriptors. The descriptor is designed to capture the relevance of each acoustic feature group (or feature set like mel-frequency cepstral coefficients, perceptual features etc.) in recognizing an audio class. For this, a bank of RVM classifiers are modeled for each ‘audio class’-‘feature group’ pair. The re...

In this paper, we present a system for automatic alignment of textual lyrics with musical audio. Given an input audio signal, structural segmentation is first performed and similar segments are assigned a label by computing the distance between the segment pairs. Using the results of segmentation and hand-labeled paragraphs in lyrics as a pair of input strings, we apply a dynamic programming (D...

We present details of our submissions to the Audio Tempo Extraction and Audio Beat Tracking contests within MIREX 2006. The approach we adopt makes use of our existing beat tracking technique with a modified tempo extraction stage, and with the provision of three different onset detection functions to act as input. For each onset detection function we extract potential beat locations and then e...

We outline a set of audio effects that use rhythmic analysis, in particular the extraction of beat and tempo information, to automatically synchronise temporal parameters to the input signal. We demonstrate that this analysis, known as beat-tracking, can be used to create adaptive parameters that adjust themselves according to changes in the properties of the input signal. We present common aud...