AES E-Library

A Novel Transient Handling Scheme for Time Stretching Algorithms

Changing either speed or pitch of audio signals without affecting the respective other is often used for music production and creative reproduction, such as remixing. It is also utilized for other purposes such as bandwidth extension and speech enhancement. While stationary signals can be stretched without harming the quality, transients are often not well maintained after time stretching. The present paper demonstrates a novel approach for transient handling in time stretching algorithms. Transient regions are replaced by stationary signals. The thereby removed transients are saved and re-inserted to the time dilated stationary audio signal after time stretching.

Authors: Nagel, Frederik; Walther, Andreas
Affiliation: Fraunhofer Institute for Integrated Circuits IIS, Erlangen, Germany
AES Convention:127 (October 2009) Paper Number:7926 Import into BibTeX
Subject:Digital Audio Effects

Click to purchase paper or login as an AES member. If your company or school subscribes to the E-Library then switch to the institutional version. If you are not an AES member and would like to subscribe to the E-Library then Join the AES!

This paper costs $20 for non-members, $5 for AES members and is free for E-Library subscribers.

Learn more about the AES E-Library

E-Library Location: (CD 127Papers)   /127/7926.pdf

Start a discussion about this paper!