Zoom Image Audio Mixing for Sound-Image Correspondence
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Solution Overview
Problem
Existing technologies fail to synchronize sound reproduction with image zooming, leading to a disconnect between visually and aurally recognized subjects, causing discomfort during immersive viewing experiences.
Innovation Solution
An information processing apparatus that includes an image reproduction unit, a gain adjustment unit for adjusting audio volume based on zoom magnification and object direction, and an audio reproduction unit to synchronize sound with the zoomed image, separating direct and reverberant sound data and adjusting their mixing ratios accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a partial region is cut out from a wide-angle image to display as a zoom image, then the desired range in the image can be displayed as a zoom image, but it is not possible to reproduce a sound that corresponds to the zoom image being displayed
Solution Approach 1:
The audio data is segmented into direct sound data and reverberant sound data components. The gain adjustment unit separately processes these components by adjusting their respective volume gains based on zoom magnification and object direction information, enabling independent control of different sound elements to achieve proper sound-image correspondence
Solution Approach 2:
The system changes audio parameters (volume gain of direct and reverberant sound data) based on visual parameters (zoom magnification and object direction). By dynamically adjusting audio parameters in response to image zooming operations, the system maintains correspondence between what is seen and heard
2Device complexity
If the same sound corresponding to the entire image is reproduced during zooming, then the audio reproduction system remains simple, but a divergence occurs between a subject visually recognized and a subject aurally recognized causing discomfort
Solution Approach 1:
The audio reproduction system transitions from a static state (reproducing the same sound for the entire image) to a dynamic state where volume gains for direct and reverberant sound data are continuously adjusted based on zoom magnification and object direction. This dynamic adjustment ensures sound-image correspondence is maintained throughout the zooming process
Solution Approach 2:
The system uses object direction information and zoom magnification as feedback signals to control the gain adjustment unit. This feedback mechanism allows the audio output to respond to and match the visual zooming state, preventing divergence between visual and auditory recognition
Data Source
AI summary
There is provided an information processing apparatus, an information processing method, and a program that enable output of a sound to be heard at an assumed viewing/listening position of a zoom image when an image is displayed as the zoom image. In the case of image content such as a sports broadcast, the individual location information, direction and posture information, and audio data of each player as an object are stored separately for direct sound and reverberant sound, at the time of recording. At the time of reproducing a zoom image, the direct sound and the reverberant sound are mixed according to the direction of a player as an object with respect to an assumed viewing/listening position in the zoom image, so that a sound to be heard at the assumed viewing/listening position is output. The present disclosure can be applied to a content reproduction apparatus.