RF Signal-Based Spatial Audio Modification
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Solution Overview
Problem
Current wireless communication technologies, such as Bluetooth Low Energy (BLE), do not effectively modify audio data transmission based on radio frequency (RF) signal reception and transmission characteristics, limiting the ability to accurately reproduce audio in real-time according to the source's position and distance.
Innovation Solution
The systems and methods modify audio data transmission by measuring signal characteristics like Time of Arrival, Angle of Arrival, and Received Signal Strength, allowing for real-time adjustments in volume, tone, and pitch to simulate the audio source's position and movement, enabling accurate spatial audio reproduction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If audio data is transmitted using conventional wireless protocols without modification, then transmission simplicity is maintained, but spatial accuracy and natural audio reproduction are degraded
Solution Approach 1:
The system performs preliminary measurements of RF signal characteristics (TOA, TDOA, AoA, RSSI) before audio reproduction to establish spatial parameters. This preliminary action enables the system to pre-calculate positioning information and audio modifications needed for accurate spatial reproduction, resolving the contradiction by preparing spatial data in advance rather than processing it in real-time during playback.
Solution Approach 2:
The patent introduces an intermediary processing layer that sits between the wireless receiver and audio output. This intermediary modifies audio data based on measured RF characteristics, acting as a mediator that translates spatial information into audible spatial effects. This resolves the contradiction by adding a dedicated component that handles the complex spatial processing without requiring the entire system to be fundamentally more complex.
2Measurement precision
If RF signal characteristics are measured and used to modify audio data, then spatial audio reproduction is improved, but processing time and computational load increase
Solution Approach 1:
The system measures RF signal characteristics and calculates spatial parameters (position, distance, direction) in advance before audio playback begins. By performing these measurements and calculations preliminarily, the system avoids real-time processing delays during actual audio reproduction, thus improving spatial accuracy without sacrificing processing time during playback.
Solution Approach 2:
The system continuously monitors RF signal characteristics and uses this feedback to dynamically adjust audio data modifications. This feedback mechanism allows the system to maintain accurate spatial reproduction while optimizing processing efficiency by only making adjustments when signal characteristics change, rather than continuously reprocessing all audio data.
3Adaptability or versatility
If audio data is modified based on RF signal characteristics, then natural audio environment reproduction is enhanced, but device complexity increases
Solution Approach 1:
The patent implements a universal audio modification system that can handle multiple types of spatial parameters (position, distance, direction, movement) using a single integrated approach. The system modifies audio data based on various RF characteristics (TOA, TDOA, AoA, RSSI) through a unified processing framework, enabling environmental adaptation without requiring separate complex subsystems for each function.
Solution Approach 2:
The system achieves environmental adaptation by modifying audio parameters (volume, tone, pitch, spatial positioning) based on measured RF signal characteristics. By changing these audio parameters dynamically according to the detected environment, the system provides natural audio reproduction without requiring complex structural changes to the device architecture.
Data Source
AI summary
Systems and methods are provided that may be implemented to modify information of an audio data transmission based on one or more measured signal reception and/or transmission characteristics of a radio frequency (RF) signal data transmission that contains or otherwise conveys the audio data transmission. The modified audio data may then be acoustically reproduced in analog form as sound waves. Examples of signal reception characteristics of a RF signal data transmission that may be measured and used as a basis for modifying information of audio data of an audio data transmission include, but are not limited to, time Difference of Arrival (TDOA), Angle of Arrival (AoA), measured received signal strength, etc. Example signal transmission characteristics of a RF signal that may be measured and used as a basis for modifying information of audio data include, but are not limited to, Angle of Departure (AoD).