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Proceedings ArticleDOI

Advances in parametric audio coding

Heiko Purnhagen
- pp 31-34
TLDR
A brief tutorial overview of parametric audio coding is given and the parametric coder currently developed in the MPEG-4 audio standardisation is described.
Abstract: 
Parametric modelling provides an efficient representation of general audio signals and is utilised in very low bit rate audio coding. It is based on the decomposition of an audio signal into components which are described by appropriate source models and represented by model parameters. Perception models are utilised in signal decomposition and model parameter coding. This paper gives a brief tutorial overview of parametric audio coding and describes the parametric coder currently developed in the MPEG-4 audio standardisation. Recent advances as well as novel approaches in this field are presented.

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Citations
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Proceedings ArticleDOI

HILN-the MPEG-4 parametric audio coding tools

Heiko Purnhagen, +1 more
TL;DR: This paper gives an overview of the HILN tools, presents the recent advances in signal modelling and parameter coding, and concludes with an evaluation of the subjective audio quality.
Book

Audio Signal Processing and Coding

Andreas Spanias, +2 more
TL;DR: This chapter discusses signal processing Essentials, audio Coding Standards and Algorithms, and quality measures for Perceptual Audio Coding.
Book

Voice and Audio Compression for Wireless Communications

Lajos Hanzo, +2 more
TL;DR: This book discusses Speech Signals and Wavelets and Pitch Detection, Predictive Coding, and the Quadratic Spline Wavelets, and concludes with a comparison of Speech Transceivers and their applications.
Patent

Parametric audio coding

Steven van de Par, +4 more
TL;DR: In this article, the authors proposed a coding scheme for an at least two-channel audio signal (L,R) by determining common frequencies (fcom) in the at least 2 channels of the audio signal.
Proceedings ArticleDOI

A 6Kbps to 85Kbps scalable audio coder

Tony S. Verma, +1 more
TL;DR: The specific signal model in this work generates a parametric representation for general wide-band audio signals that consists of three complementary components: sines, transients, and noise.
References
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Journal ArticleDOI

Speech analysis/Synthesis based on a sinusoidal representation

R.J. McAulay, +1 more
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Book Chapter

Musical Sound Modeling with Sinusoids plus Noise

Xavier Serra
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Journal ArticleDOI

Speech analysis/synthesis and modification using an analysis-by-synthesis/overlap-add sinusoidal model

E.B. George, +1 more
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TL;DR: The proposed analysis-by-synthesis/overlap-add (ABS/OLA) system allows for both fixed and time-varying time-, frequency-, and pitch-scale modifications, and computational shortcuts using the FFT algorithm make its implementation feasible using currently available hardware.
Journal ArticleDOI

Analysis of musical‐instrument tones

Jean-Claude Risset, +1 more
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TL;DR: In this article, the authors present powerful new methods for the study of tone quality of both existing and new instruments, which involve both new tools (primarily computers) and new applications of experimental psychology (psychophysics and subjective judgments).
Journal Article

Overview of MPEG-Audio: Current and Future Standards for Low Bit-Rate Audio Coding

Karlheinz Brandenburg, +1 more
- 01 Feb 1997 - 
TL;DR: Common features as well as differences between MPEG-I and MPEG-2 audio, other current audio coding systems currently in use, and the new work for MPEG-4 audio will be presented.