METHOD AND APPARATUS FOR HIGH FREQUENCY DECODING FOR BANDWIDTH EXTENSION

Title:

METHOD AND APPARATUS FOR HIGH FREQUENCY DECODING FOR BANDWIDTH EXTENSION

Document Type and Number:

WIPO Patent Application WO/2015/133795

Kind Code:

A1

Abstract:

Disclosed are a method and an apparatus for high frequency decoding for bandwidth extension. The method for high frequency decoding for bandwidth extension comprises the steps of: decoding an excitation class; transforming a decoded low frequency spectrum on the basis of the excitation class; and generating a high frequency excitation spectrum on the basis of the transformed low frequency spectrum. The method and apparatus for high frequency decoding for bandwidth extension according to an embodiment can transform a restored low frequency spectrum and generate a high frequency excitation spectrum, thereby improving the restored sound quality without an excessive increase in complexity.

Inventors:

CHOO KI-HYUN (KR)
OH EUN-MI (KR)
HWANG SEON-HO (KR)

Application Number:

PCT/KR2015/002045

Publication Date:

September 11, 2015

Filing Date:

March 03, 2015

Export Citation:

Click for automatic bibliography generation Help

Assignee:

SAMSUNG ELECTRONICS CO LTD (KR)

International Classes:

G10L19/00; G10L19/02

Domestic Patent References:

WO2013141638A1	2013-09-26
WO2012108680A2	2012-08-16

Foreign References:

US20070282599A1	2007-12-06
KR20130007485A	2013-01-18
KR20060051298A	2006-05-19

Other References: