Amplitude modulated sinusoidal models for audio modeling and coding
(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.
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/4092562
- author
- Christensen, MG ; Andersen, Sören Vang LU and Jensen, SH
- publishing date
- 2003
- 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}}, }