Localized RF Audio Broadcast System for Live Venues
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Solution Overview
Problem
Existing methods for providing real-time audio commentary at live events, such as terrestrial radio and digital streaming, suffer from significant delays, making them impractical for enhancing the fan experience, and are often cost-prohibitive for large-scale implementation.
Innovation Solution
A localized audio broadcast system using a customized RF engine that transmits terrestrial audio signals to mobile devices within a venue, allowing real-time reception of play-by-play commentary and other audio feeds without delay, utilizing a multiplexer, exciter, and antenna to broadcast multiplexed channels within the FM radio band, and a software application to manage frequency assignment and user interface.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If terrestrial radio broadcast is used, then audio commentary can be received, but significant delay occurs making it impractical for real-time entertainment
Solution Approach 1:
The system segments the broadcast delivery by creating localized transmission zones within the venue, where each zone has its own encoder and transmitter. This allows audio to be delivered directly to spectators in real-time without going through the delayed terrestrial broadcast chain, thereby reducing broadcast delay while maintaining operational simplicity through standardized modular units.
Solution Approach 2:
The system transitions from traditional terrestrial radio broadcast (one-dimensional over-the-air transmission) to a multi-dimensional localized delivery system using multiple transmission methods including FM radio, Wi-Fi, and Bluetooth simultaneously. This dimensional expansion allows real-time audio delivery while maintaining ease of operation through multiple redundant pathways.
2Loss of time
If digital streaming or webcast is used, then real-time audio can be delivered, but provider and technology latencies create delays
Solution Approach 1:
The system extracts the audio signal directly from the broadcast source at the venue and delivers it locally through standardized transmitters, eliminating the need for complex digital streaming infrastructure, encoding/decoding processes, and software applications. This extraction approach reduces digital latency while simplifying device complexity by using basic radio reception already present in mobile devices.
Solution Approach 2:
The system creates localized copies of the broadcast audio signal through multiple transmission channels (FM, Wi-Fi, Bluetooth) that can be received by various devices without requiring complex processing. This copying approach eliminates digital latency associated with streaming while keeping device complexity low by utilizing existing communication capabilities.
3Loss of time
If local venue media encoder connected to Wireless Data Network is used, then digital latency can be mitigated, but cost becomes prohibitive
Solution Approach 1:
The system uses universal transmitters that can broadcast through multiple channels (FM radio, Wi-Fi, Bluetooth) simultaneously, allowing a single infrastructure deployment to serve diverse device types without requiring expensive specialized equipment for each device. This multi-functionality reduces implementation cost while eliminating digital latency through direct local transmission.
Solution Approach 2:
The system leverages the self-service capability of mobile devices by using their built-in radio receivers, Wi-Fi, and Bluetooth hardware to receive audio directly, eliminating the need for expensive proprietary receivers or specialized hardware. This approach reduces implementation cost while maintaining real-time delivery by utilizing devices' own communication capabilities.
4Device complexity
If simple radio is used, then equipment simplicity is maintained, but broadcast delay of up to ninety seconds occurs
Solution Approach 1:
The system merges the simplicity of traditional radio transmission with modern digital transmission methods (Wi-Fi, Bluetooth) in a hybrid architecture. This combination maintains equipment simplicity by using familiar radio technology while eliminating broadcast delay through direct local transmission paths that bypass the terrestrial broadcast chain.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables real-time, delay-free audio broadcasts to attendees at live events, providing an enhanced fan experience, supporting scalability for large venues, and offering additional monetization options and emergency announcement capabilities, without the need for special equipment or complex infrastructure.
Implementation Method 1
an exciter to generate a carrier signal for the multiplex channel within a radio frequency band
Implementation Method 2
an antenna to broadcast the audio channels across the venue location
Data Source
AI summary
The exemplary embodiments relate to methods and systems for a real-time localized audio broadcast to attendants at live entertainment events. One embodiment relates to a method comprising receiving location data indicating a location of a device, determining a frequency based on the location data, wherein the frequency is assigned based on a venue location and an audio channel is broadcast on the frequency at the venue location, displaying a software button on a user interface of the device, wherein the software button corresponds corresponding to the audio channel, receiving a user selection of the software button via the user interface, and tuning a RF tuner contained within the device to the frequency to receive the audio channel.