The lack of synchronisation between a sender clock and a receiver audio clock in an audio application results in an undesirable effect known as “audio skew”. This paper proposes and implements a new approach to detecting and correcting audio skew, focusing on the accuracy of measurements and on the algorithm’s effect on the audio experience of the listener. The algorithms presented are shown to...

The MPEG-4 Structured Audio standard was created to enable high-quality, very-low-bitrate transmission of synthetic sound. However, structured-audio techniques also are suitable for flexible natural audio coding. This paper introduces the concept of generalized audio coding, in which the Structured Audio decoder is used to emulate the behavior of other audio decoders. We prove that the MPEG-4 S...

Audio classification is very important in many audio applications so that different audio signal can be processed appropriately. We propose an audio classification scheme which will categorise audio based on a number of audio features. These features include silence ratio, spectral centroid, harmonicity and pitch. Our preliminary experiments with silence ratio feature produce very promising cla...

This paper describes the experiments conducted for spoken web search at MediaEval 2011 evaluations. The task consists of searching for audio segments within audio content using an audio query. The current approach uses a broad articulatory phonetic units for indexing the audio files and to obtain audio segments. Sliding DTW is applied on the audio segments to determine the time instants.

Learning from audio-visual data offers many possibilities to express correspondence between the audio and visual content, similar human perception that relates aural information. In this work, we present a method for self-supervised representation learning based on spatial alignment (AVSA), more sophisticated task than (AVC). addition correspondence, AVSA also learns location of acoustic conten...

This project consists in the implementation of a system that retrieves the five most similar audio files from an audio database when an audio file is presented as the input. I concentrated on indoor and outdoor environmental audio files. Audio is a very important kind of media that includes speech, music and various kinds of environmental noise. With the recent public access to different audio ...