Invention Grant
- Patent Title: Method and apparatus for polyphonic audio signal prediction in coding and networking systems
- Patent Title (中): 编码和联网系统中复音音频信号预测的方法和装置
-
Application No.: US13970080Application Date: 2013-08-19
-
Publication No.: US09406307B2Publication Date: 2016-08-02
- Inventor: Kenneth Rose , Tejaswi Nanjundaswamy
- Applicant: The Regents of the University of California
- Applicant Address: US CA Oakland
- Assignee: The Regents of the University of California
- Current Assignee: The Regents of the University of California
- Current Assignee Address: US CA Oakland
- Agency: Gates & Cooper LLP
- Main IPC: G10L19/00
- IPC: G10L19/00 ; G10L19/09 ; G10L19/005 ; G10L19/02

Abstract:
A method, device, and apparatus provide the ability to predict a portion of a polyphonic audio signal for compression and networking applications. The solution involves a framework of a cascade of long term prediction filters, which by design is tailored to account for all periodic components present in a polyphonic signal. This framework is complemented with a design method to optimize the system parameters. Specialization may include specific techniques for coding and networking scenarios, where the potential of each enhanced prediction is realized to considerably improve the overall system performance for that application. One specific technique provides enhanced inter-frame prediction for the compression of polyphonic audio signals, particularly at low delay. Another specific technique provides improved frame loss concealment capabilities to combat packet loss in audio communications.
Public/Granted literature
- US20140052439A1 METHOD AND APPARATUS FOR POLYPHONIC AUDIO SIGNAL PREDICTION IN CODING AND NETWORKING SYSTEMS Public/Granted day:2014-02-20
Information query