Invention Grant
- Patent Title: Methods and apparatus for improving high frequency reconstruction of audio and speech signals
- Patent Title (中): 改善音频和语音信号高频重构的方法和装置
-
Application No.: US12273782Application Date: 2008-11-19
-
Publication No.: US08112284B2Publication Date: 2012-02-07
- Inventor: Kristofer Kjörling , Per Ekstrand , Holger Hörich
- Applicant: Kristofer Kjörling , Per Ekstrand , Holger Hörich
- Applicant Address: SE Stockholm
- Assignee: Coding Technologies AB
- Current Assignee: Coding Technologies AB
- Current Assignee Address: SE Stockholm
- Agency: Glenn Patent Group
- Agent Michael A. Glenn
- Priority: SE0104004 20011129
- Main IPC: G10L19/00
- IPC: G10L19/00 ; G10L19/02 ; G10L21/00
Abstract:
The present invention proposes a new method and a new apparatus for enhancement of audio source coding systems utilizing high frequency reconstruction (HFR). It utilizes a detection mechanism on the encoder side to assess what parts of the spectrum will not be correctly reproduced by the HFR method in the decoder. Information on this is efficiently coded and sent to the decoder, where it is combined with the output of the HFR unit.
Public/Granted literature
- US20090132261A1 Methods for Improving High Frequency Reconstruction Public/Granted day:2009-05-21
Information query
