Reference Viewpoint Audio Rendering for Creator-Intent Playback
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing content reproduction systems fail to effectively convey the intended artistic emphasis and amusement of content to listeners, as they rely solely on the physical relationship between the listener and objects, neglecting the creator's intended focus and viewer experience.
Innovation Solution
An information processing device and method that acquires listener position information, selects relevant reference viewpoints, and calculates object position information based on pre-designated reference viewpoints, allowing for content reproduction that aligns with the creator's intention by interpolating object positions and gain information, enabling a more immersive experience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If object position and gain are determined solely by physical relationship between listener and object in absolute coordinate system, then spatial accuracy is improved, but content creator's intended emphasis and artistic effect are lost
Solution Approach 1:
The content creator pre-designates reference viewpoints and associated object positions and gain values before content reproduction. These predetermined settings are stored and retrieved based on the listener's actual position, allowing the creator's intended emphasis to be preserved while adapting to free listening positions through interpolation when necessary.
2Reliability
If multiple reference viewpoints are used to preserve creator's intention, then content reproduction quality is improved, but system complexity increases
Solution Approach 1:
The free viewpoint space is divided into multiple regions, each associated with a specific reference viewpoint. The system determines which reference viewpoint corresponds to the listener's position and uses that predetermined data, reducing the need for complex real-time calculations while maintaining reproduction quality.
Solution Approach 2:
Reference viewpoints act as intermediaries between the content creator's intended arrangement and the listener's actual position. By using these predetermined reference points and interpolating between them when the listener is between regions, the system maintains accuracy without requiring complex real-time processing for every possible listener position.
3Measurement precision
If real-time calculation of object position based on listener position is performed, then spatial accuracy is improved, but processing time increases
Solution Approach 1:
Object positions and gain values are pre-calculated and stored for each reference viewpoint during content creation. When reproducing content, the system only needs to determine which reference viewpoint region the listener is in and retrieve the corresponding predetermined data, performing minimal interpolation if needed, thus avoiding complex real-time calculations while maintaining accuracy.
Data Source
AI summary
The present technology relates to an information processing device, an information processing method, and a program capable of realizing content reproduction based on an intention of a content creator.The information processing device includes a listener position information acquisition unit that acquires listener position information; a viewpoint selection unit that selects a plurality of reference viewpoints forming a region including a listening position at a predetermined time; a reference viewpoint information acquisition unit that acquires viewpoint position information of the plurality of reference viewpoints, and object position information of an object of the plurality of reference viewpoints; and an object position calculation unit that, in a case where, at a time different from the predetermined time, a listening position is out of the region including the listening position at the predetermined time, calculates position information of the object of the listening position on the basis of the object position information of the plurality of reference viewpoints forming the region including the listening position at the different time, or outputs the position information obtained last. The present technology can be applied to the information processing device.