Infrared Remote Audiovisual Device Character Audio Isolation
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Solution Overview
Problem
Conventional smart TVs struggle to isolate and play audio signals corresponding to specific characters in video content, making it difficult for users to distinguish between characters during internet-connected video playback.
Innovation Solution
An infrared remote control audiovisual device equipped with an infrared sensor, display interface, audio output interface, and processor, which pauses video playback, identifies target character patterns, and extracts corresponding audio tracks from pre-processed feature sets and audio tracks stored in memory, allowing the output of specific character audio.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If the TV plays video with audio signals from multiple characters, then the video playback is complete and immersive, but the user cannot distinguish which audio signal belongs to which character
Solution Approach 1:
The patent segments the mixed audio signal into separate character-specific audio tracks by detecting different voiceprints in the audio stream. Each character's audio is separated and can be independently selected and played back, allowing users to distinguish and control audio from different characters individually.
Solution Approach 2:
The patent introduces an intermediary system that includes voiceprint detection, character identification, and audio track separation components. This intermediary processing layer analyzes the mixed audio signal, identifies different characters based on voice characteristics, and creates separate audio tracks for each character, enabling selective playback without requiring users to manually separate audio sources.
2Adaptability or versatility
If the TV connects to internet platforms for video playback, then the functionality and content variety are improved, but the audio signal mixing problem arises making character identification difficult
Solution Approach 1:
The patent implements a universal audio separation system that works across multiple internet video platforms (YouTube, Netflix, Apple TV+, etc.). The voiceprint detection and audio track separation functionality is designed to be platform-agnostic, enabling character audio distinction regardless of which video service is being used, thus maintaining adaptability while solving the audio identification problem.
3Loss of information
If the system separates and extracts specific character audio tracks, then the character audio identification is improved, but the device complexity increases
Solution Approach 1:
The patent implements a self-service audio separation system where the TV automatically detects voiceprints, identifies characters, and separates audio tracks without requiring external assistance or complex manual configuration. The system autonomously processes the mixed audio signal, creates character-specific audio tracks, and makes them available for selection, reducing the perceived complexity for users while maintaining sophisticated audio processing capabilities.
Data Source
AI summary
A playback method of infrared remote control audiovisual device comprises: utilizing a display interface and an audio output interface to output frames and an audio signal of a video; utilizing an infrared sensor to receive a first indication signal; pausing a playback of the display interface and an output of the audio output interface according to the first indication signal, so that the display interface displays a paused frame; utilizing the infrared sensor to receive a second indication signal; determining a target character pattern of a target block in the paused frame according to the second indication signal; extracting a determined audio track corresponding to the target character pattern from the audio signal according to a relation between the pre-processed character feature sets and pre-processed audio tracks; controlling the display interface to resume the playback and controlling the audio output interface to output the determined audio track.