Vehicle Audio Playback Control for Dynamic Sound Adaptation
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Solution Overview
Problem
Conventional music playback devices in vehicles fail to maintain occupant comfort and enjoyment over time, as consistent music playback can lead to familiarity and reduced pleasure, necessitating a solution to refresh the auditory experience.
Innovation Solution
A playback sound provision device that detects surrounding information using cameras and sensors to dynamically change playback methods, such as amplitude, pitch, speed, and sound effects, based on detected targets like road conditions, scenery, and objects, to create a more engaging and refreshing auditory experience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If consistent music is played back with the same tone, then the occupant can feel comfortable initially, but the pleasant feeling reduces as the occupant gets accustomed to the playback sound
Solution Approach 1:
The playback sound provision device dynamically changes playback parameters (amplitude, pitch, playback speed, sound quality, dynamic range) based on detected surrounding information such as vehicle speed, acceleration, and environmental conditions. This dynamic adaptation prevents the occupant from becoming accustomed to a static playback sound, maintaining freshness and pleasant feeling throughout the drive.
Solution Approach 2:
The device changes multiple playback parameters simultaneously including amplitude, pitch, playback speed, sound quality, and dynamic range. By varying these parameters based on surrounding information, the system maintains auditory freshness while preserving comfort, resolving the contradiction between consistency and adaptability.
2Adaptability or versatility
If playback parameters are changed dynamically based on surrounding information, then freshness and enjoyment are maintained, but the device complexity increases
Solution Approach 1:
The control device serves multiple functions: it detects surrounding information (vehicle speed, acceleration, environmental conditions), processes this information, and automatically adjusts multiple playback parameters. By integrating these functions into a single multi-functional control system, the patent reduces overall device complexity while maintaining the ability to dynamically adapt playback sound.
Solution Approach 2:
The playback sound provision device automatically adjusts playback parameters based on detected surrounding information without requiring manual intervention from the occupant. The system serves itself by autonomously determining optimal playback settings, reducing the need for complex user interfaces and manual control mechanisms.
3Adaptability or versatility
If multiple playback methods are implemented (changing amplitude, pitch, speed, sound quality, dynamic range), then the auditory experience becomes more engaging, but the control complexity increases
Solution Approach 1:
The patent combines multiple playback control functions (amplitude adjustment, pitch change, playback speed control, sound quality modification, dynamic range adjustment) into a single integrated control device. This merging of functions allows the system to implement diverse playback methods while managing control complexity through unified processing logic based on surrounding information.
Data Source
AI summary
A playback sound provision device includes: a surrounding information detection device configured to detect detection information including information on a three-dimensional object or a planar display around the vehicle; and a control device configured to determine a playback method for a playback sound based on a music piece based on the detection information when a predetermined target is included in the detection information, and provide the playback sound based on the playback method.