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Frequency transposition applications for improving spatial hearing abilities of subjects with high-frequency hearing losses

A main body and frequency shifting technology, applied in hearing aids, electrical components, etc., to achieve the effect of improving spatial hearing ability

Inactive Publication Date: 2009-02-18
OTICON
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Even though the above-mentioned prior art methods provide improved hearing capabilities for many subjects, even hearing-impaired subjects can benefit from them, there is still room for further improvements in frequency shifting effects in hearing aids to improve spatial hearing in hearing-impaired subjects. The problem

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  • Frequency transposition applications for improving spatial hearing abilities of subjects with high-frequency hearing losses
  • Frequency transposition applications for improving spatial hearing abilities of subjects with high-frequency hearing losses

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Embodiment Construction

[0052] The following description refers to the accompanying drawings, which show by way of illustrations how the invention may be practiced.

[0053] exist figure 1 The overall process of configuring and implementing a subject-dependent frequency shifting scheme is shown in . In an initial step 101, the subject's residual hearing sensitivity is determined by means of standard audiometric measurement procedures [eg see Arlinger, S. (1991), Manual of Practical Audiometry-Volume 2, London: Whurr Publishers Ltd.]. An estimate of hearing threshold is thus obtained which reveals the subject's configuration and degree of hearing loss. If fairly mild hearing loss is diagnosed, the subject should have sufficient residual frequency resolution to resolve good spectral cues [see eg Moore, B.C.J. (1998), Cochlear HearingLoss, London: Whurr Publishers Ltd.]. In contrast, if a more definite hearing loss is diagnosed, the subject's frequency resolution may be severely impaired. The results...

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Abstract

The invention discloses a method of configuring a frequency transposition scheme for transposing a set of received frequencies of an audio signal received by a hearing aid worn by a subject to a transposed set of frequencies, wherein the method comprises determining at least one subject-dependent parameter indicative of the subject's ability to detect audio frequencies, and at least one subject-dependent parameter indicative of the location in frequency of one or more spectral cues; configuring a subject-dependent frequency transposition scheme based on the determined subject-dependent parameters, the subject-dependent frequency transposition scheme being configured so as to improve the subject's spatial hearing capabilities, and adapting the hearing aid to perform the configured subject-dependent frequency transposition scheme.

Description

technical field [0001] The present invention generally relates to a method of configuring a frequency shifting scheme to shift frequencies received by a hearing aid worn by a subject and to a device adapted to perform said shifting. The invention also relates to a hearing aid adapted to frequency shift incoming sound. More specifically, the present invention relates to frequency shifting to improve the spatial hearing capabilities of subjects with high frequency hearing loss. Background technique [0002] Most people who suffer from hearing loss usually have problems sensing the high frequencies of sound signals. This is a major problem because, as is well known, the high frequencies of sound signals offer advantages in terms of spatial hearing, such as the ability to determine the location or origin of sensed sounds ("sound localization"). Spatial hearing is therefore important to people's ability to perceive sound, interact with and orient themselves in their environment...

Claims

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Application Information

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IPC IPC(8): H04R25/00
CPCH04R25/353
Inventor T·贝伦斯
Owner OTICON
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