DocumentCode
2357008
Title
Methods for enhanced harmonic transposition
Author
Villemoes, Lars ; Ekstrand, Per ; Hedelin, Per
Author_Institution
Dolby Sweden AB, Stockholm, Sweden
fYear
2011
fDate
16-19 Oct. 2011
Firstpage
161
Lastpage
164
Abstract
In systems for High Frequency Reconstruction (HFR) employing harmonic transposition, there is a risk of introducing artifacts due to conflicting design goals for stationary, transient, and periodic signals. We describe a filter bank implementation of the transposer which addresses this problem by window design, frequency domain oversampling, and cross products.
Keywords
filtering theory; frequency-domain analysis; harmonic analysis; signal reconstruction; signal sampling; enhanced harmonic transposition; filter bank implementation; frequency domain oversampling; high frequency reconstruction; periodic signal; window design; Audio coding; Filter banks; Harmonic analysis; Power harmonic filters; Time frequency analysis; Vocoders; audio coding; harmonic bandwidth extension; harmonic transposition; high frequency reconstruction; phase vocoder;
fLanguage
English
Publisher
ieee
Conference_Titel
Applications of Signal Processing to Audio and Acoustics (WASPAA), 2011 IEEE Workshop on
Conference_Location
New Paltz, NY
ISSN
1931-1168
Print_ISBN
978-1-4577-0692-9
Electronic_ISBN
1931-1168
Type
conf
DOI
10.1109/ASPAA.2011.6082282
Filename
6082282
Link To Document