Audio Playback Equalization Using Tagged Response and Entertainment Streams
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Solution Overview
Problem
Existing audio players with virtual personal assistant (VPA) functionality lack the ability to differentiate between various types of audio content within streams and render them appropriately, often failing to prioritize responses to user queries over entertainment audio effectively.
Innovation Solution
An audio playback system with a processor and associated programming that identifies and tags different types of audio streams, applying specific equalization profiles to each, ensuring that responses to user queries are rendered with distinct characteristics compared to entertainment audio, and optionally adjusting volumes to prioritize the response.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single equalization profile is applied to all audio streams, then the device complexity is reduced, but the audio quality and user experience deteriorate due to inability to differentiate between response audio and entertainment audio
Solution Approach 1:
The patent segments audio streams by inserting identification tags (e.g., <response audio> and </response audio>) into the audio data stream. These tags divide the continuous audio stream into distinguishable segments, allowing the equalization module to identify and process response audio differently from entertainment audio. This segmentation enables targeted equalization without requiring complex overall system redesign.
Solution Approach 2:
The patent applies local quality by implementing content-dependent equalization where different equalization profiles are applied to different segments of the audio stream based on their type. Response audio receives one equalization profile while entertainment audio receives another, allowing each segment to be optimized for its specific purpose without affecting other segments.
2Manufacturing precision
If audio streams are differentiated and processed with different equalization profiles, then the audio rendering quality improves, but the device complexity increases due to additional processing requirements
Solution Approach 1:
The patent implements self-service by having the audio stream itself carry the identification information through embedded tags. The audio data automatically identifies its own type through these tags, eliminating the need for external classification systems or complex analysis algorithms. The equalization module simply needs to detect the tags and apply appropriate profiles, significantly reducing processing complexity.
3Loss of information
If volume adjustments are made to prioritize response audio, then the clarity of user query responses improves, but the overall audio stream management complexity increases
Solution Approach 1:
The patent applies preliminary action by pre-marking response audio segments with identification tags before equalization and volume adjustment processing. This advance tagging allows the system to quickly identify and prioritize response audio without requiring real-time analysis or complex decision-making during playback, simplifying the volume management process.
Data Source
AI summary
An audio playback system performs a method including identifying a first type of audio included in a first audio stream, tagging the first audio stream with a first digital tag corresponding to the first type of audio, identifying a second type of audio included in a second audio stream, tagging the second audio stream with a second digital tag corresponding to the second type of audio, rendering the first audio stream with a first equalization profile applied thereto, the first equalization profile selected responsive to the audio playback system detecting the first digital tag in the first audio stream, and rendering the second audio stream with a second equalization profile different than the first equalization profile applied thereto, the second equalization profile selected responsive to the audio playback system detecting the second digital tag in the second audio stream.