3D Audio Metadata Determination via Attribute Analysis

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Solution Overview

Problem

The production of high-quality 3D Audio content is hindered by increased temporal costs due to the higher dimensional complexity of sound source positioning, resulting in fewer high-quality 3D Audio contents compared to stereo content.

Innovation Solution

An information processing device and method that determines metadata parameters for 3D Audio objects based on attribute information, using techniques such as decision trees, audio signals, and distribution adjustment to streamline the production process, allowing for more efficient creation of high-quality 3D Audio content.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If 3D Audio is used to reproduce three-dimensional sound with direction, distance, and spread, then audio realism is improved, but temporal cost for producing content increases

Engineering Contradiction:

Improveaudio realismVSAvoidtemporal cost for producing content

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The system pre-calculates and stores metadata parameters (horizontal angle, vertical angle, distance, gain) for audio objects based on their attribute information. This preliminary action allows the metadata to be automatically determined during content production without manual intervention, significantly reducing the temporal cost while maintaining audio realism.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system enables automatic determination of metadata parameters using attribute information of audio objects. The metadata generates itself through automated processing of object attributes, eliminating the need for manual parameter setting and reducing production time while preserving the three-dimensional sound quality.

Inventive Principle:

Principle #25Self-service

2Ease of manufacture

If 3D Audio content production is made easier, then the number of producers and contents increases, but maintaining high quality becomes more challenging

Engineering Contradiction:

Improveease of 3D Audio content productionVSAvoidquality of 3D Audio content

Core Design Contradiction:

Ease of manufactureVSManufacturing precision

Solution Approach 1:

The system changes the parameter determination process from manual specification to automatic determination based on attribute information. By deriving metadata parameters (horizontal angle, vertical angle, distance, gain) from object attributes through automated rules, the system maintains consistent quality standards while making production accessible to more creators.

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The system uses attribute information of audio objects as feedback to automatically determine appropriate metadata parameters. This feedback mechanism ensures that the generated metadata reflects the actual characteristics of the audio objects, maintaining high quality content even as production becomes easier and more automated.

Inventive Principle:

Principle #23Feedback

Data Source

PatentUS11716586B2Information processing device, method, and program

Publication Date: 2023.08.01 SONY GROUP CORP

AI summary

The present technology relates to an information processing device, a method, and a program that enable easy production of 3D Audio content.The information processing device includes a determination unit that determines one or more parameters constituting the metadata of an object on the basis of one or more pieces of attribute information of the object. The present technology can be applied to information processing devices.