Broadcast Audio Parameter Switching for Music and Talk Segments
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Solution Overview
Problem
Existing digital broadcast receiving devices apply uniform sound quality parameters across music programs, failing to adapt to varying music genres and talk segments, leading to suboptimal listening experience.
Innovation Solution
A digital broadcast receiving device that utilizes meta information from digital broadcast signals to differentiate between music and non-music segments, applying genre-specific acoustic parameters during music segments and default parameters during talk or silence, ensuring appropriate sound quality adjustment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the same acoustic parameter is uniformly applied throughout the broadcast of a music program, then the sound quality is maintained consistently, but the parameter may not match the broadcast content (music genres and talk segments), making it difficult for the user to hear
Solution Approach 1:
The acoustic parameter is changed dynamically based on the detected program content. The system switches between different acoustic parameters (e.g., first acoustic parameter for music segments, second acoustic parameter for talk segments) according to real-time content detection, making the parameter application adaptive rather than static
Solution Approach 2:
The system changes the acoustic parameter values based on program content type. Different acoustic parameters are applied to audio signals depending on whether the content is music or talk, allowing optimal sound quality for each content type while maintaining overall consistency through structured parameter management
2Adaptability or versatility
If genre-specific acoustic parameters are applied to audio signals, then the sound quality adapts to the music genre and program content, but the system complexity increases due to multiple parameters and content detection requirements
Solution Approach 1:
Different acoustic parameters are applied to different segments of the audio signal based on content type. The system identifies local content characteristics (music vs. talk segments) and applies appropriate acoustic parameters to each segment, achieving localized optimization without requiring complete system redesign
Solution Approach 2:
A content detection unit acts as an intermediary between the audio signal and the acoustic parameter application. This intermediary component analyzes the audio content and selects appropriate acoustic parameters, simplifying the overall system architecture by separating the detection and parameter selection functions
Data Source
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AI summary
PROBLEM Application of an appropriate parameter for each audio signal while broadcasting. SOLUTION A digital broadcast receiving device includes a receiving part capable of receiving a digital broadcast signal of multiplexed meta information and an audio signal, and an application part capable of applying an acoustic adjustment parameter to the received audio signal. In a program broadcast by a digital broadcast signal, there is a first period during which a song is played and a second period during which a song is not played. The application part determines whether the program is for a first period or a second period based on the meta information, applies the first parameter to the audio signal during the first period, and does not apply the first parameter to the audio signal during the second period.