Personal Waveform Profile Audio Processing for Subjective Fidelity
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Solution Overview
Problem
Existing audio processing methods fail to accurately replicate the subjective listening experience intended by a creative producer across different listeners due to individual differences in hearing acuity and perceptual biases, leading to variations in sound intensity, pitch, and positional cues.
Innovation Solution
The method involves identifying and capturing Personal Waveform Profiles (PWP) for both the creative producer and listeners, using these profiles to transform audio signals through algorithms that adjust frequency, phase, and other audio characteristics to align the listening experience of one listener with that of the producer, either by boosting or attenuating specific frequencies and altering sound timing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If high-fidelity reproduction systems are used to deliver audio content, then the technical quality and accuracy of sound transmission is improved, but individual listeners still experience subjective differences due to personal hearing characteristics
Solution Approach 1:
The system performs preliminary action by capturing and storing each listener's Personal Waveform Profile (PWP) in advance through audiometric testing. This profile contains the listener's unique hearing characteristics and is stored for later use. When audio content is delivered, the pre-stored PWP is automatically applied to transform the audio signal, compensating for the listener's specific hearing deviations before the listening experience occurs, thus ensuring the producer's intended experience is accurately conveyed.
2Device complexity
If audio content is delivered without personalization, then delivery complexity is reduced, but the listener's subjective experience diverges from the producer's intent
Solution Approach 1:
The system creates a digital copy of the reference listener's (producer's) hearing characteristics through the Personal Waveform Profile. This PWP copy encapsulates the producer's unique perceptual attributes including frequency sensitivity, dynamic range perception, and positional cue sensitivity. The copied profile is then applied to transform audio signals for other listeners, enabling them to experience the content as the producer intended without requiring the producer's physical presence or direct measurement of each listener's ears.
3Loss of information
If audiometric testing is performed to capture Personal Waveform Profiles, then subjective fidelity between producer and listener is improved, but the process time and complexity increases
Solution Approach 1:
The audiometric testing system serves multiple functions: it captures frequency response data, measures dynamic range perception, assesses positional cue sensitivity, and generates the complete Personal Waveform Profile all in a single integrated process. This multi-functional approach consolidates what could be multiple separate testing sessions into one comprehensive measurement, reducing the overall time and complexity while capturing all necessary perceptual characteristics for accurate audio transformation.
Data Source
AI summary
A method or apparatus for delivering audio programming such as music to listeners may include identifying, capturing and applying a listener's audio perception characteristics (sometimes referred to as the listener's Personal Waveform Profile) to transform audio content so that the listener perceives the content similarly to how the content would be perceived by a different listener. An audio testing tool may be implemented as software application to identify and capture respective listeners' Personal Waveform Profiles. A signal processor may operate an algorithm processing source audio content using the respective listeners' Personal Waveform Profiles to provide audio output based on a difference between different profiles.