Wireless Audio Streaming to Personal Devices
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Solution Overview
Problem
In environments with rich visual information, such as public places, it is challenging to effectively deliver audio information due to ambient noise or regulatory restrictions, limiting the effectiveness of digital signage that relies on loudspeakers.
Innovation Solution
The system wirelessly transmits audio streams from digital signage to personal digital devices using technologies like Bluetooth, Wi-Fi, or cellular networks, allowing users to access location-dependent audio content asynchronously with visual displays, enabling personalized audio experiences and adapting content based on user preferences and behavior.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If audio information is delivered through loudspeakers in public places, then audio information can be provided to users, but ambient noise and regulatory restrictions make effective delivery difficult
Solution Approach 1:
The audio stream is extracted from the public display system and delivered individually to user devices through wireless communication, separating the audio delivery from the public address system and enabling controlled, personalized audio distribution不受ambient noise constraints
Solution Approach 2:
A wireless communication intermediary (Bluetooth, Wi-Fi, cellular) is introduced between the digital signage system and user devices, enabling audio transmission without requiring physical loudspeakers in the public environment, thus avoiding ambient noise interference and regulatory restrictions
2Loss of information
If all potential audio sources are active in a single environment, then complete audio information is available, but an incoherent cacophony results
Solution Approach 1:
Audio information is delivered with local quality to each user device based on their specific location, preferences, and context, allowing different users to receive different audio streams simultaneously without creating cacophony, while each user still receives complete relevant information
Solution Approach 2:
The audio delivery system is segmented into individual user channels, with each user device receiving its own dedicated audio stream tailored to their needs, preventing the mixing of multiple audio sources into a cacophony while maintaining information completeness for each user
3Adaptability or versatility
If audio streams are transmitted to personal digital devices, then personalized audio experiences are enabled, but bandwidth consumption increases
Solution Approach 1:
The system transmits only the necessary portion of audio information to each user device based on their specific needs, location, and context, rather than broadcasting complete audio streams to all devices, reducing overall bandwidth consumption while maintaining personalized experience quality
Solution Approach 2:
Audio stream parameters (quality, format, compression level) are dynamically adjusted based on device capabilities, network conditions, and user preferences, optimizing bandwidth utilization while preserving the personalized audio experience
Data Source
AI summary
Embodiments of an electronic system for asynchronous audio and video in and environment includes a server with a connection to a wireless access point or a personal digital device that communicates with the server through the wireless access point. The server receives and stores an audio track that is to accompany a public display. The personal digital device acts as a client to the server. A user interface enables a user of the personal digital device to request an audio track corresponding to the public display. The server initiates a stream of the requested audio track to be wirelessly transmitted to and received by the personal digital device. The personal digital device plays at least some of the requested audio track to the user.