Management File for Object Audio Selection in MPEG-DASH

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Solution Overview

Problem

MPEG-DASH standards do not allow for the selection of object audio data based on display states, leading to inefficient audio data transmission and rendering, as audio data is transmitted regardless of the display state, resulting in extra transmission bands and rendering processing.

Innovation Solution

An information processing apparatus and method that generates and transmits a management file containing object selection information to select object audio data based on the display state, allowing for the appropriate selection and acquisition of object audio data by the client, optimizing data transmission and rendering.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of energy

If all object audio data is transmitted regardless of display state, then complete audio content is delivered, but transmission bandwidth is wasted and rendering processing is unnecessary

Engineering Contradiction:

Improvetransmission bandwidthVSAvoidaudio data selection flexibility

Core Design Contradiction:

Loss of energyVSAdaptability or versatility

Solution Approach 1:

The management file is generated in advance with pre-configured object selection information for various display states. This preliminary preparation allows the client to directly select appropriate audio data without real-time processing, resolving the contradiction by enabling efficient bandwidth usage while maintaining selection flexibility through pre-computed configurations.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

A management file serves as an intermediary between the audio data and the client. This management file contains structured object selection information that mediates the selection process, allowing the system to efficiently match display states with appropriate audio data without requiring complex real-time decision-making, thus reducing bandwidth waste while preserving adaptability.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Productivity

If object selection information is provided for each display state, then audio data transmission efficiency is improved, but management file complexity increases

Engineering Contradiction:

Improveaudio data transmission efficiencyVSAvoidmanagement file structure

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The management file is segmented into distinct object selection information entries, each corresponding to a specific display state. This segmentation allows the client to efficiently access only the relevant audio data configurations without processing the entire file, improving transmission efficiency while managing complexity through modular organization of selection criteria and associated audio data identifiers.

Inventive Principle:

Principle #1Segmentation

Data Source

PatentUS11743520B2Information processing apparatus, information processing method, and program

Publication Date: 2023.08.29 SONY GROUP CORP

AI summary

There are provided an information processing apparatus, an information processing method, and a program. The information processing apparatus includes a generating unit configured to generate a management file which stores information regarding object selection information for selecting object audio data in accordance with a display state of an image, and a transmitting unit configured to transmit the management file.