By Topic

Frequency selective pitch transposition of audio signals

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

2 Author(s)
Disch, S. ; Fraunhofer Inst. for Integrated Circuits (IIS), Erlangen, Germany ; Edler, B.

Modern music production often uses pre-recorded pieces of audio, so-called samples, taken from a huge sample database. Consequently, there is an increasing demand to extensively adapt these samples to their intended new musical environment in a flexible way. Such an application, for instance, retroactively changes the key mode of audio recordings, e.g. from a major key to minor key by a frequency selective transposition of pitch. Recently, the modulation vocoder (MODVOC) has been proposed to handle this task. In this paper, two enhancements to the MODVOC are presented and the subjective quality of its application to selective pitch transposition is assessed. Moreover, the proposed scheme is compared with results obtained by applying a commercial computer program, which became newly available on the market. The proposed method is clearly preferred in terms of the perceptual quality aspect "melody and chords transposition", while the commercial program is favored by the majority with regard to the aspect "timbre preservation".

Published in:

Acoustics, Speech and Signal Processing (ICASSP), 2011 IEEE International Conference on

Date of Conference:

22-27 May 2011