Supercharge Your Innovation With Domain-Expert AI Agents!

Encoding and decoding method and apparatus for multitrack audio signal

An audio signal encoding and audio signal technology, applied in the field of encoding multi-channel audio signals, can solve problems such as multi-channel signal encoding that does not involve more than two channels

Inactive Publication Date: 2009-09-09
KONINKLIJKE PHILIPS ELECTRONICS NV
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the above-mentioned prior art documents do not deal with the problem of efficiently encoding multi-channel signals containing more than two channels

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Encoding and decoding method and apparatus for multitrack audio signal
  • Encoding and decoding method and apparatus for multitrack audio signal
  • Encoding and decoding method and apparatus for multitrack audio signal

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0054] figure 1 A schematic diagram of a system for transmitting multi-channel audio signals according to an embodiment of the present invention is shown. The system comprises an encoding device 101 for generating an encoded four-channel signal and a decoding device 105 for decoding the received encoded signal into a four-channel signal. The encoding device 101 and decoding device 105 may each be any electronic device or part of such a device.

[0055] Here, the term electronic equipment includes computers, such as fixed and portable PCs, fixed and portable radio communication equipment and other hand-held or portable equipment, such as mobile phones, pagers, audio players, multimedia players, communication equipment (i.e. electronic organizers), smart phones, personal digital assistants (PDAs), portable computers, and more. Note that the encoding device 101 and the decoding device may be combined in one electronic device, wherein the audio signal is stored on a computer-rea...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A method of encoding a multi-channel audio signal including at least a first signal component (LF), a second signal component (LR) and a third signal component (RF). The method comprises the steps of encoding the first and second signal components by a first parametric encoder ( 202 ) resulting in a first encoded signal (L) and a first set of encoding parameters (P 2 ); encoding the first encoded signal and a further signal (R) by a second parametric encoder ( 201 ), resulting in a second encoded signal (T) and a second set of encoding parameters (P 1 ), where the further signal is derived from at least the third signal component; and representing the multi-channel audio signal at least by a resulting encoded signal (T) derived from at least the second encoded signal, by the first set of encoding parameters and by the second set of encoding parameters.

Description

technical field [0001] The invention relates to encoding a multi-channel audio signal and, more particularly, to encoding a multi-channel audio signal comprising at least a first signal component, a second signal component and a third signal component. Background technique [0002] Parametric descriptions of audio signals have attracted attention during the past few years, especially in the field of audio coding. It has been shown that transmitting the (quantized) parameters describing the audio signal requires only little transmission capacity and allows decoding at the receiving end which results in the audio signal not perceptually significantly different from the original signal. [0003] European patent application EP1 107 232 discloses a parametric coding scheme for a stereo signal comprising left (L) and right (R) channel signals. This coding scheme produces a representation of a stereo signal that includes information related to only one of the L and R signals and p...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): H04S3/00H04S5/02G10L19/008H04S1/00H04S7/00
CPCH04S2420/03H04S3/00G10L19/008
Inventor D·J·布里巴亚尔特
Owner KONINKLIJKE PHILIPS ELECTRONICS NV
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com