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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
; and
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
2016-04-01 12:24:59
date last changed
2022-04-21 07:10:37
@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}},
}