Title :
Spectral mismatch due to preemphasis in LPC analysis/Synthesis
Author :
Wong, D.Y. ; Hsiao, C.C. ; Markel, J.D.
Author_Institution :
Signal Technology, Santa Barbara, CA
fDate :
4/1/1980 12:00:00 AM
Abstract :
The standard first-order preemphasis approach used in linear prediction analysis results in an undesirable low-frequency boost in the synthesis spectrum. A solution is obtained by mismatching the preemphasis and postemphasis factors or by using a particular second-order preemphasis filter.
Keywords :
Dynamic range; Filtering; Frequency synthesizers; Linear predictive coding; Matched filters; Power harmonic filters; Signal synthesis; Speech analysis; Speech enhancement; Speech synthesis;
Journal_Title :
Acoustics, Speech and Signal Processing, IEEE Transactions on
DOI :
10.1109/TASSP.1980.1163387
