Multi-Band Loudspeaker Hearing Test for Personalized Audio Compensation
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Solution Overview
Problem
Existing audio systems do not allow individuals to perform frequency-dependent hearing tests independently, necessitating assistance from audiologists for hearing aid adjustments.
Innovation Solution
The audio system incorporates a multi-path loudspeaker with distinct frequency band speakers, enabling individuals to conduct self-administered frequency-dependent hearing tests and adapt audio reproduction accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single loudspeaker is used to reproduce the entire frequency spectrum, then the device complexity is reduced, but the ability to individually compensate for frequency-specific hearing impairments deteriorates
Solution Approach 1:
The audio system divides the frequency spectrum into multiple distinct bands, with each frequency band speaker (tweeter, mid-range speaker, woofer) responsible for a specific segment. This segmentation allows independent adjustment of each frequency band to compensate for hearing impairments in specific ranges, resolving the contradiction between device simplicity and adaptability to individual hearing losses.
2Ease of operation
If frequency-dependent hearing tests are performed independently by listeners, then the ease of operation is improved, but the measurement precision deteriorates due to lack of professional equipment
Solution Approach 1:
The system enables listeners to perform their own hearing tests independently without requiring professional audiologists. The frequency band speakers present test tones at different frequencies, and the system automatically detects and records the listener's responses, allowing self-administered hearing threshold measurements across the frequency spectrum.
Solution Approach 2:
The system incorporates automatic feedback mechanisms where the signal processing unit analyzes the listener's responses to test tones and automatically determines hearing thresholds. This feedback loop enables precise measurement without requiring professional interpretation, maintaining measurement precision while improving ease of operation.
Data Source
AI summary
An audio system for reproducing amplified output audio signals by at least one loudspeaker of the audio system. The audio system has a signal processing unit for actuating the loudspeaker, including a digital signal processor and at least one digital/analog converter and at least one amplifier. The signal processing unit is connected/connectable to a data source for providing input audio signals to be amplified, or the data source is integrated into the signal processing unit. The audio system has a reproduction mode and a hearing test mode and additionally a data storage device for storing a result of the at least one, frequency-dependent listening test carried out with the audio system. The loudspeaker is a multi-path loudspeaker having at least two mutually different frequency band speakers for reproducing the amplified output audio signal, with the at least two mutually different frequency band speakers each having distinct useful frequency bands.