Title :
Frequency warping via warped linear prediction
Author_Institution :
Dept. of Telecommun., Brno Univ. of Technol., Brno, Czech Republic
Abstract :
This paper deals with the application of warped linear prediction (WLP) to frequency warping of audio signals. It is an extension of linear predictive coding (LPC) frequency-warping structure which adds frequency warped analysis filter for variable frequency resolution. This allows to achieve improved spectral estimation or lower filter order compared to the LPC based structure.
Keywords :
audio coding; filtering theory; prediction theory; spectral analysis; audio signal; frequency warped analysis filter; linear predictive coding; spectral estimation; variable frequency resolution; warped linear prediction; Equations; Frequency response; Frequency synthesizers; Signal processing; Time frequency analysis; Transfer functions; Digital Audio Effects; Frequency Warping; LPC; Linear Prediction; WLPC; Warped Linear Prediction;
Conference_Titel :
Telecommunications and Signal Processing (TSP), 2011 34th International Conference on
Conference_Location :
Budapest
Print_ISBN :
978-1-4577-1410-8
DOI :
10.1109/TSP.2011.6043711
