Spatial Audio Channel Mapping for Immersive Light Synchronization
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Solution Overview
Problem
Existing systems for dynamic lighting based on audiovisual content do not effectively utilize newer audio formats to create enhanced ambient lighting effects that incorporate both video and audio portions, failing to provide an immersive experience.
Innovation Solution
A system and method that determine audio source positions from multiple audio channels, associate these positions with lighting devices, and modulate light effects based on audio and video characteristics, including chromaticity and intensity, to create immersive lighting experiences.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If audio-based ambient lighting data is combined with video-based ambient lighting characteristics, then the lighting effects become more immersive and synchronized with audiovisual content, but the system fails to utilize newer audio formats with multiple audio channels effectively
Solution Approach 1:
The patent segments the audio portion into multiple audio channels (first audio channel, second audio channel, etc.) and processes each channel separately to determine its characteristics. This segmentation allows the system to handle newer audio formats effectively by treating each channel as an independent source with its own position and characteristics, while still integrating them into a unified lighting control system.
Solution Approach 2:
The patent introduces spatial positioning as an additional dimension by determining audio source positions for each audio channel and associating them with specific lighting devices based on their spatial relationships. This dimensional approach transforms the lighting control from a simple intensity modulation to a spatially-aware system that can create immersive effects by matching light sources to their corresponding audio sources in three-dimensional space.
2Measurement precision
If light intensity is modulated based on audio intensity from multiple channels, then the lighting synchronization with audiovisual content improves, but determining audio source positions and associating them with lighting devices increases processing complexity
Solution Approach 1:
The patent performs preliminary actions by determining the characteristics and positions of audio sources from multiple audio channels before associating them with lighting devices. The system pre-processes the audio data to extract position information and characteristics, then uses this pre-analyzed information to make association decisions, which simplifies the overall processing complexity while maintaining high synchronization precision.
Solution Approach 2:
The patent introduces an intermediary association mechanism that maps audio sources to lighting devices based on their spatial positions and characteristics. This intermediary layer decouples the complex audio processing from the lighting control, allowing the system to handle multiple audio channels efficiently by using position-based association rules rather than direct complex processing between audio channels and lighting devices.
3Ease of operation
If the system processes multiple audio channels separately to determine their characteristics, then the ability to create directionally accurate lighting effects improves, but the processing time and computational load increase
Solution Approach 1:
The patent segments the processing of multiple audio channels into independent tasks, where each audio channel is analyzed separately to determine its characteristics and position. This segmentation allows for parallel processing of different channels, reducing the overall processing time while maintaining the ability to create directionally accurate lighting effects for each channel.
Solution Approach 2:
The patent applies partial processing by focusing on the most relevant characteristics of each audio channel (position and intensity) rather than analyzing all possible audio parameters. This selective approach to processing only the essential attributes needed for lighting control reduces computational load and processing time while still achieving directionally accurate lighting effects.
Data Source
AI summary
A system for controlling a plurality of lighting devices (11-15) to render light effects accompanying a rendering of audiovisual content (81) is configured to associate, based on a first characteristic of a first audio channel/object (86), the first audio channel/object with a first lighting device (12) and not with a second lighting device (13). The first characteristic is indicative of an audio source position. The system is further configured to associate a second audio channel (87) with the first and second lighting devices. The system is further configured to determine whether second audio content in the second audio channel meets predetermined criteria and determine a first light effect based on a determined chromaticity. If the one or more predetermined criteria are not met, the light intensity is based on first audio content in the first audio channel/object, and otherwise, the light intensity is based on the second audio content.