AES E-Library

AES E-Library

A Detailed Analysis of a Time-Domain Formant-Corrected Pitch-Shifting Algorithm

Document Thumbnail

A novel algorithm to perform real-time pitch shifting of quasi-periodic musical tones in such a way as to preserve the apparent spectral envelope was proposed by Lent in 1989. A functional and analytical comparison of that method and most commercial methods of pitch shifting that shift the spectral envelope along with the fundamental frequency is made in this paper. Analytical results show that this method, indeed, attempts to preserve the spectral envelope similarly to frequency domain methods that interpolate between discrete spectral lines and resample the interpolated spectrum at the output fundamental and its harmonics.

AES Convention: Paper Number:
Publication Date:

Click to purchase paper as a non-member 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 $33 for non-members and is free for AES members and E-Library subscribers.

Learn more about the AES E-Library

E-Library Location:

Start a discussion about this paper!

AES - Audio Engineering Society