Dynamic Audio Rendering for Display Apparatus Volume Adaptation
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Solution Overview
Problem
Current display apparatuses maintain a fixed rendering policy for different content genres, failing to consider the user's listening level based on the volume setting, resulting in inadequate audio experience, especially at low volume levels where important sound elements like the narrator's voice are not properly emphasized.
Innovation Solution
A display apparatus and method that dynamically adjust sound signal rendering based on the genre of content and the set volume level, using first and second rendering type information, with weights applied according to the volume level, to optimize audio characteristics such as voice transmission power, low frequency range, presence, and sense of space, ensuring better listening ability across varying volume settings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a fixed rendering policy is maintained for each content genre, then the rendering process is simple and consistent, but the user's listening level according to the current volume level is not considered, resulting in poor audio quality at low volume levels
Solution Approach 1:
The rendering policy is changed from fixed to dynamic by introducing volume level as a variable parameter. The system now adapts the rendering characteristics based on the current volume setting, transitioning from a static rendering approach to a dynamic one that responds to user preferences. This resolves the contradiction by making the rendering process adaptable rather than fixed, improving audio quality at low volumes while maintaining operational simplicity through automated adjustment.
Solution Approach 2:
The invention changes the rendering parameters dynamically based on volume level. Different rendering characteristics are applied depending on whether the volume is low, medium, or high. This parameter change approach allows the system to optimize audio quality for different listening conditions without complicating the user interface, as the adjustments happen automatically based on the volume parameter.
2Reliability
If rendering emphasizes presence and three-dimensional feeling for sports content, then the immersive experience is improved, but the narrator's voice becomes difficult to hear at low volume levels
Solution Approach 1:
The rendering characteristics are differentiated by local conditions (volume level). At low volume levels, the system applies different rendering characteristics that prioritize voice clarity over immersive effects. At higher volume levels, the full immersive rendering with presence and three-dimensional feeling is applied. This local quality approach allows the system to optimize for different listening conditions without compromising either immersive experience or voice clarity in their respective contexts.
Solution Approach 2:
The balance between immersive effects and voice clarity is made dynamic rather than fixed. The system automatically adjusts the rendering characteristics based on the current volume level, transitioning between different rendering modes. This dynamic adjustment ensures that at low volumes, voice information is preserved, while at high volumes, immersive qualities are enhanced, resolving the contradiction between these two competing requirements.
3Manufacturing precision
If multiple rendering types are applied based on volume level, then audio quality is optimized for different listening conditions, but the rendering system complexity increases
Solution Approach 1:
The rendering system is segmented into different rendering types corresponding to different volume level ranges. Instead of a single complex continuous adjustment system, the invention divides the volume range into segments (low, medium, high) with optimized rendering characteristics for each segment. This segmentation approach simplifies the overall system architecture while still achieving optimized audio quality for different listening conditions.
Solution Approach 2:
The system applies different levels of rendering complexity based on the volume level. At low volume levels, a simplified rendering mode is used that focuses on essential audio information. At higher volume levels, more complex rendering effects are applied. This partial action approach optimizes computational resources and system complexity by applying full rendering complexity only when necessary, rather than always using the most complex rendering mode.
Data Source
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AI summary
A display apparatus includes a speaker, a storage configured to store first rendering type information and second rendering type information based on a volume level of each content genre; a display, and a processor configured to render a sound signal of a content based on at least one of the first rendering type information and the second rendering type information corresponding to a genre of the content on the display and output the rendered sound signal through the speaker, wherein the processor, based on a volume level which is currently set in the display apparatus being within a predetermined range, renders the sound signal based on third rendering type information which is obtained by applying a weight according to the set volume level to at least one of the first rendering type information and the second rendering type information.