Personal Audio Device Parameter Mapping for Transducer-Tailored Playback
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Solution Overview
Problem
Modern audio playback systems fail to reproduce audio signals in a way that accounts for the specific characteristics of the audio transducer being used, leading to a compromised listening experience due to the lack of automatic signal processing tailored to the device and user preferences.
Innovation Solution
A system that processes audio signals by receiving a request and an identifier associated with a personal audio device, retrieving parameters specific to that device, and applying customized processing to enhance the audio reproduction, including simulating nonlinear effects of sound propagation and mixing in air, reducing stress on the auditory system, and restoring natural sound dynamics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual sound controls are provided for adjusting audio characteristics, then user control over audio output is improved, but the system cannot automatically adapt to specific transducer characteristics and user preferences
Solution Approach 1:
The system automatically retrieves device identifiers, looks up corresponding parameters from a database, and applies customized audio processing without requiring user intervention. The transducer and playback device self-configure based on their unique identifiers, enabling automatic adaptation while maintaining ease of operation.
Solution Approach 2:
The system uses the device identifier as feedback to determine which parameter set to apply. By continuously monitoring the device identifier and retrieving corresponding parameters from the database, the system creates a closed-loop control system that automatically adapts to the specific transducer characteristics.
2Device complexity
If generic audio processing is applied to all devices, then system complexity is reduced, but audio reproduction quality is compromised due to lack of transducer-specific optimization
Solution Approach 1:
The system applies different parameter sets to different transducers based on their unique identifiers. Each transducer receives customized audio processing parameters tailored to its specific characteristics, enabling local optimization of audio reproduction quality without requiring complex manual configuration.
Solution Approach 2:
The system changes audio processing parameters dynamically based on the device identifier. By retrieving specific parameter sets from the database corresponding to each transducer's identifier, the system optimizes audio reproduction quality through parameter adaptation rather than through complex hardware modifications.
3Adaptability or versatility
If user preferences are stored and applied automatically, then audio reproduction is tailored to individual users, but the system requires additional storage and retrieval mechanisms
Solution Approach 1:
The database system serves multiple functions: it stores device identifiers, maps identifiers to parameter sets, and provides retrieval mechanisms. This universal database infrastructure supports both device-specific customization and user preference storage, reducing the need for separate dedicated storage systems.
Data Source
AI summary
In various applications, the system provides a method for processing audio signals, including: receiving a request for audio content; receiving an identifier encoded in a personal audio device comprising a transducer for playing audio; retrieving at least one parameter associated with the identifier; and processing the audio content using at least the request, the identifier and the at least one parameter, wherein the processing is customized for the personal audio device based on the at least one parameter associated with the identifier. In various applications the parameter is, one or more of, associated with a specification of the personal audio device, acoustic metrics of the transducer, relates to control of equalization, relates to permission to enable proprietary sonic processing for enhanced acoustic reception of streaming content, relates to acoustic metrics of the transducer and wherein the identifier is associated with permission to enable proprietary sonic processing for enhanced acoustic reception of streaming content, and/or is stored in a chip on the personal audio device, is retrieved from a server in a network, among other things. In various applications, the personal audio device comprises ear buds and the identifier is stored in a non-volatile memory of the ear buds.