Publications – Details
A Fast Indexing Method for Shells of the Gosset Lattice
- Authors:
- Hauke Krüger, Bernd Geiser, Peter Vary, Hai Ting Li, and Deming Zhang
- Book Title:
- Konferenz Elektronische Sprachsignalverarbeitung (ESSV)
- Volume:
- 61
- Series:
- Studientexte zur Sprachkommunikation
- Venue:
- Aachen, Germany
- Event Date:
- 28.-30.9.2011
- Organization:
- ITG, DEGA
- Publisher:
- TuDPress Verlag der Wissenschaften GmbH
- Location:
- Dresden, Germany
- Date:
- Sept. 2011
- Pages:
- 205–212
- ISBN:
- 978-3-94271-037-4
- ISSN:
- 0940-6832
- Language:
- English
Abstract
An iterative algorithm for indexing spherical shells of the Gosset lattice E8 is described. The proposed approach has a significantly lower computational complexity than the traditional ”Schalkwijk” indexing method. Both methods are described in detail and an analysis of the encoding and decoding complexity is pre- sented. The new indexing method is implemented in the “Gosset Low Complexity Vector Quantizer” (GLCVQ) which is used for super-wideband transform audio coding in Amd. 6 to ITU-T Rec. G.729.1.
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