Hearing Aid Suitability Assessment via Frequency Resolution
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Solution Overview
Problem
Current methods cannot accurately determine whether hearing-impaired individuals can clearly hear speech using dichotic hearing assistance, as they only measure hearing levels and not frequency resolution, which is crucial for speech clarity.
Innovation Solution
A hearing assistance suitability determining device that receives hearing ability information, determines hearing ability types based on frequency characteristics, and assesses suitability for dichotic hearing assistance by referencing the amount of clarity improvement for each type, presenting this information to users.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If hearing levels are measured using conventional methods, then hearing ability information can be obtained, but speech clarity determination using dichotic hearing assistance cannot be accurately assessed
Solution Approach 1:
The patent segments the hearing ability assessment into multiple dimensions: hearing level measurement and frequency resolution measurement. By separating these measurements and analyzing them independently, the system can determine both conventional hearing thresholds and the specific frequency resolution characteristics needed to assess dichotic hearing assistance effectiveness.
Solution Approach 2:
The patent introduces frequency resolution as an intermediary parameter that bridges conventional hearing level measurement and speech clarity assessment. This intermediary measurement provides the missing link that allows accurate determination of dichotic hearing assistance effectiveness without directly measuring speech clarity in all cases.
2Adaptability or versatility
If dichotic hearing assistance is applied to all hearing-impaired individuals, then speech clarity may be improved for some, but effectiveness cannot be determined for individual suitability
Solution Approach 1:
The patent applies local quality by determining frequency resolution characteristics for each individual's specific hearing profile. Instead of a one-size-fits-all approach, the system analyzes each person's unique frequency resolution patterns across different frequency ranges, enabling personalized suitability assessment for dichotic hearing assistance.
Solution Approach 2:
The patent changes the assessment parameters from conventional hearing levels alone to include frequency resolution measurements. By introducing this additional parameter and analyzing its relationship with dichotic hearing assistance effectiveness, the system can accurately determine individual suitability and adapt the assistance application accordingly.
3Measurement precision
If frequency resolution measurement is implemented, then speech clarity assessment becomes possible, but measurement complexity increases
Solution Approach 1:
The patent achieves universality by designing a measurement system that can perform both conventional hearing level measurement and frequency resolution measurement using the same basic apparatus. This multi-functional approach enables speech clarity assessment capability while avoiding the need for separate complex measurement equipment.
Solution Approach 2:
The system utilizes the hearing-impaired individual's own auditory responses during standard hearing threshold measurement to derive frequency resolution characteristics. By analyzing the behavioral responses already obtained in conventional audiometry, the system extracts additional frequency resolution information without requiring separate dedicated measurement procedures.
Data Source
AI summary
A hearing assistance suitability determining device, that determines suitability including whether a subject can clearly hear speech using dichotic hearing assistance, includes: a subject hearing ability information input unit; a hearing ability type determining unit that determines at least one hearing ability type that corresponds to the hearing ability information, based on hearing ability information frequency characteristics; a suitability determining unit that determines suitability for dichotic hearing assistance based on the at least one hearing ability type determined by the hearing ability type determining unit; and suitability presenting unit that presents the suitability determined by the suitability determining unit. The suitability determining unit determines, by referring to a correspondence relationship, suitability based on clarity improvement amount for speech sound corresponding to the determined hearing ability type, the correspondence relationship indicating, for each hearing ability type, degree of perceived speech clarity improvement by the dichotic hearing assistance.