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Device and method for processing internal channel for low complexity format conversion

A channel and device technology, applied in the field of devices and methods for processing internal channels of low-complexity format conversion, can solve problems such as increased complexity, increased decoder complexity, and impact on battery consumption, and achieve simplified protocols. ANOVA, effect of reducing complexity

Active Publication Date: 2018-05-11
SAMSUNG ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] As the number of input channels increases, and as the number of output channels decreases, the complexity of the decoder required to perform covariance analysis and phase alignment in the decoding and conversion process increases
This increase in complexity not only significantly impacts the speed of mobile devices, but also severely impacts battery consumption

Method used

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  • Device and method for processing internal channel for low complexity format conversion
  • Device and method for processing internal channel for low complexity format conversion
  • Device and method for processing internal channel for low complexity format conversion

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Embodiment Construction

[0036] According to an embodiment of the present invention, the method for processing an audio signal includes: receiving an audio bitstream encoded using Moving Picture Experts Group Surround 212 (MPS212); Generate an internal channel signal of a two-channel element (CPE) based on the rendering parameters of the channel; allocate a set of internal channels based on the codec output channel position; and allocate the set of internal channels based on the generated internal channel signal and the allocated The internal channels generate stereo channel output signals.

[0037] Mode of the invention

[0038] The present invention is described in detail below with reference to the accompanying drawings that show, by way of example, specific embodiments in which the invention can be implemented. These embodiments are described in detail to enable those skilled in the art to practice the invention. It should be understood that the various embodiments of the invention differ from e...

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Abstract

A method for processing an audio signal, according to an embodiment of the present invention for achieving the technical objectives, comprises the steps of: receiving a signal to which internal channel gains (ICGs) have been pre-applied and which is for one channel pair element (CPE); if a reproduction channel configuration is not stereo, obtaining inverse internal channel gains (ICGs) for the CPEon the basis of rendering parameters in correspondence with MPS212 output channels defined in a format converter and MPS212 parameters; and generating output signals on the basis of the received signal for one CPE and the obtained inverse internal channel gains.

Description

technical field [0001] The present invention relates to apparatus and methods for processing intra-channels of low-complexity format conversions, and more particularly to reducing the number of input channels of a format converter by performing intra-channel processing on input channels in a stereo output layout environment Apparatus and methods whereby the number of covariance operations to be performed by a format converter is reduced. Background technique [0002] Moving Picture Experts Group (MPEG)-H three-dimensional (3D) audio is capable of processing various types of signals, and serves as a solution for next-generation audio signal processing due to easy control of input and output forms. Furthermore, due to the trend of device miniaturization and the current trend of the times, the proportion of audio reproduced by mobile devices in a stereo reproduction environment is increasing. [0003] When an immersive audio signal realized by multi-channel (such as 22.2 chann...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04R5/04H04S3/00
CPCH04R5/04H04S3/00G10L19/008G10L19/173H04S3/008H04S2400/03H04S3/002
Inventor 金善民田相培
Owner SAMSUNG ELECTRONICS CO LTD
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