On-board Audio System Multi-channel Surround Sound Routing
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Solution Overview
Problem
Conventional on-board audio systems struggle to provide an excellent surround sound experience due to their limitations in processing multi-channel audio sources, often resulting in poor overall acoustic experience.
Innovation Solution
An audio playing method that decomposes audio signals into multiple source signals of different categories, establishes a route between sub sound source signals and speaker modules based on a preset distribution principle, and plays each sub sound source signal by a corresponding speaker module, enhancing the immersive car multi-channel surround sound playback.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If dual channel audio sources are simply mixed with speaker route, then the system complexity remains low, but the surround sound experience is poor
Solution Approach 1:
The audio signal is segmented into multiple audio source signals of different categories (e.g., speech, music, noise) using source separation technology. Each audio source signal is then processed independently and routed to specific speaker modules based on its category, enabling sophisticated surround sound effects without requiring complex manual mixing for each audio type.
2Reliability
If binaural crosstalk elimination processing is applied, then surround feeling is slightly improved, but sound quality deteriorates and overall acoustic experience remains poor
Solution Approach 1:
Different audio source signals are routed to different speaker modules based on their categories. For example, speech signals may be directed to front speakers for clear dialogue, while music signals are distributed to surround speakers for immersive experience. This localized optimization of audio routing for different signal types preserves sound quality while enhancing surround feeling.
3Reliability
If multiple speaker modules are deployed at different positions, then immersive surround sound experience can be achieved, but the system complexity increases
Solution Approach 1:
The audio processing system is designed to handle multiple types of audio sources (speech, music, noise, etc.) through a unified source separation and routing framework. This multi-functional approach allows the same system architecture to process diverse audio content effectively, managing the complexity of multiple speaker modules through a standardized processing pipeline rather than requiring separate processing paths for each speaker.
Data Source
AI summary
The audio playing method is provided by embodiments of the present disclosure, applied to on-board audio system (including multiple speaker modules arranged at different positions in a car cabin, the audio playing method includes: obtaining an audio signal to be played; decomposing the audio signal to obtain multiple audio source signals of different categories, where each of the multiple sound source signals includes multiple sub sound source signals of a same category; establishing a route between all sub sound source signals and the multiple speaker modules according to a preset distribution principle indicating rules for playing different sub sound source signals by different speaker modules; and playing each of the multiple sub sound source signals by a corresponding speaker module according to the route. The present disclosure provides more accurate and immersive car multi-channel surround sound playback, which can effectively improve overall acoustic experience of the on-board audio system.