liu.seSearch for publications in DiVA
Change search
ReferencesLink to record
Permanent link

Direct link
Modified phase vocoder scheme for dynamic frequency warping
Linköping University, Department of Science and Technology, Digital Media. Linköping University, The Institute of Technology. (Sound and Video Technology)
2008 (English)In: 3rd International Symposium on Communications, Control and Signal Processing, 2008. ISCCSP 2008., Piscataway, NJ, USA: IEEE , 2008, 1291-1296 p.Conference paper (Refereed)
Abstract [en]

Frequency warping is a desirable building block for sound effects and synthesis. Physical model driven pitch shifting of inharmonic sounds and the transformation of harmonic into inharmonic sounds are the main features of frequency warping effects. However, frequency warping sound signals is a non-causal and computationally expensive operation. In recent work [1] we showed that multirate filter bank s derived from a modified phase vocoder structure are suitable for the real-time approximate computation of frequency warping. The approximation is proven to be very accurate from both numerical and perceptual points of view. In this paper we extend the principles of the original design to implement time-varying frequency warping methods. The proposed algorithm is suitable for inclusion in the synthesis of systems with dynamic stiffness and for the production of captivating audio effects.

Place, publisher, year, edition, pages
Piscataway, NJ, USA: IEEE , 2008. 1291-1296 p.
Keyword [en]
Digital Audio Effects, Frequency Warping, Short-Time Fourier Transform, Filter Banks
National Category
Engineering and Technology Signal Processing
URN: urn:nbn:se:liu:diva-43637DOI: 10.1109/ISCCSP.2008.4537425ISI: 000257934100245Local ID: 74462ISBN: 978-1-4244-1687-5 (print)ISBN: 978-1-4244-1688-2 (e-ISBN)OAI: diva2:264497
3rd International Symposium on Communications, Control and Signal Processing, St Julians, Malta, 12-14 March 2008
Available from: 2009-10-10 Created: 2009-10-10 Last updated: 2014-04-22Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full text

Search in DiVA

By author/editor
Evangelista, Gianpaolo
By organisation
Digital MediaThe Institute of Technology
Engineering and TechnologySignal Processing

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 310 hits
ReferencesLink to record
Permanent link

Direct link