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Amplitude modulated sinusoidal models for audio modeling and coding

Christensen, MG; Andersen, Sören Vang LU and Jensen, SH (2003) In Lecture Notes in Computer Science 2773. p.1334-1342
Abstract
In this paper a new perspective on modeling of transient phenomena in the context of sinusoidal audio modeling and coding is presented. In our approach the task of finding time-varying amplitudes for sinusoidal models is viewed as an AM demodulation problem. A general perfect reconstruction framework for amplitude modulated sinusoids is introduced and model reductions lead to a model for audio compression. Demodulation methods are considered for estimation of the time-varying amplitudes, and inherent constraints and limitations axe discussed. Finally, some applications axe considered and discussed and the concepts are demonstrated to improve sinusoidal modeling of audio and speech.
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author
publishing date
type
Contribution to journal
publication status
published
subject
in
Lecture Notes in Computer Science
volume
2773
pages
1334 - 1342
publisher
Springer
external identifiers
  • wos:000186518000180
  • scopus:8344285707
ISSN
1611-3349
language
English
LU publication?
no
id
5d395b44-3f9f-477d-ba2c-ea3e199ada3b (old id 4092562)
date added to LUP
2013-10-17 10:45:21
date last changed
2018-05-29 11:37:48
@article{5d395b44-3f9f-477d-ba2c-ea3e199ada3b,
  abstract     = {In this paper a new perspective on modeling of transient phenomena in the context of sinusoidal audio modeling and coding is presented. In our approach the task of finding time-varying amplitudes for sinusoidal models is viewed as an AM demodulation problem. A general perfect reconstruction framework for amplitude modulated sinusoids is introduced and model reductions lead to a model for audio compression. Demodulation methods are considered for estimation of the time-varying amplitudes, and inherent constraints and limitations axe discussed. Finally, some applications axe considered and discussed and the concepts are demonstrated to improve sinusoidal modeling of audio and speech.},
  author       = {Christensen, MG and Andersen, Sören Vang and Jensen, SH},
  issn         = {1611-3349},
  language     = {eng},
  pages        = {1334--1342},
  publisher    = {Springer},
  series       = {Lecture Notes in Computer Science},
  title        = {Amplitude modulated sinusoidal models for audio modeling and coding},
  volume       = {2773},
  year         = {2003},
}