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Hearing aid device and hearing aid method

A hearing aid device and audio signal technology, applied in hearing aids, electrical components, etc., can solve the problems of small switches and difficult to operate switches

Inactive Publication Date: 2014-07-02
PANASONIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Hearing aids are equipped with several switches for volume control and the like, however, the switches provided in the main body are very small, and in many cases, it is difficult to operate the switches in a state where the hearing aid is worn in the ear canal

Method used

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  • Hearing aid device and hearing aid method
  • Hearing aid device and hearing aid method
  • Hearing aid device and hearing aid method

Examples

Experimental program
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no. 1 example ）

[0060] In the first embodiment of the present invention, by referring to Figure 1 to Figure 10 To describe the hand placement detection method using the temporal change of the phase difference.

[0061] Hand placement is an action typically performed by a user when they want to hear sounds in front more clearly, ie an action to cover the left or right ear with the corresponding hand. That is, the user faces the desired sound and turns his / her palm towards the desired sound. The position of the hand is behind the auricle and, in many cases, a part of the hand is in contact with the auricle. The hand is slightly bent compared to the straight state, and, usually, fingers other than the thumb are not separated from each other but are in contact with each other.

[0062]

[0063] figure 1 It is a block diagram showing the configuration of the hand placement detection device 1 of the first embodiment. figure 1 The hand placement detection device 1 shown in includes omnidire...

no. 2 example ）

[0149] will be passed by reference Figure 11 to Figure 13 A method of detecting hand placement using temporal changes in spectral power as a second embodiment of the present invention will be described.

[0150]

[0151] Figure 11 is a block diagram showing the configuration of the hand placement detection device 2 of the second embodiment. The difference between the hand placement detection device 1 of the first embodiment and the hand placement detection device 2 of the second embodiment lies in the structure of the hand placement detection unit. Except for this point, the second embodiment is the same as the first embodiment. exist Figure 11 , denote with the same reference numerals as the figure 1 The same constituent elements shown in . In this embodiment, the structure other than the hand placement detection unit is the same as in the first embodiment, and thus a detailed description thereof is omitted.

[0152] In this embodiment, as in the first embodiment,...

no. 3 example ）

[0178] As described in the foregoing first and second embodiments, the presence or absence of hand placement on the ear can be determined using a temporal change in phase difference between signals input from two microphones or a temporal change in spectral power. Using the two time changes is effective from the viewpoint of accuracy in determining the presence or absence of hand placement.

[0179] A method of detecting hand placement using both temporal changes in phase difference and temporal changes in spectral power will be described as a third embodiment of the present invention.

[0180] Figure 15 is a block diagram showing the configuration of the hand placement detection device 3 of the third embodiment. The difference between the hand placement detection device 3 of the third embodiment and the hand placement detection device 1 of the first embodiment lies in the structure of the hand placement detection unit. Except for this point, the third embodiment is the sam...

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Abstract

Provided are a hearing aid device and a hearing aid method, which control directivity processing or amplification processing through user's hand placement so as to conform to the user's intuitive feeling. A hand placement detection unit (201) detects that a phase difference between audio signals of a plurality of microphones (101a, 101b) is below a predetermined threshold for a predetermined period of time. The hearing aid processing control unit (202) controls the directional sound collection unit (203) to become non-directional and controls the amplification characteristic of the non-linear amplification unit (204) according to the detection result.

Description

technical field [0001] The present invention relates to a hearing aid device and a hearing aid method capable of detecting a user's hand placement based on input signals from respective microphones. Background technique [0002] The hearing aid is equipped with several switches for volume control and the like, however, the switches provided in the main body are very small, and in many cases, it is difficult to operate the switches in a state where the hearing aid is worn in the ear canal. Thus, if a user of a hearing aid can operate the hearing aid by a gesture in which the user puts his / her hand on his / her ear (hereinafter referred to as hand placement), it becomes easy to operate the hearing aid. [0003] Patent Document 1 describes a device having a hand placement detection function capable of detecting hand placement by a distance sensing unit. If hand placement is detected, the sound source can be selected while listening through headphones. [0004] Figure 18 is a s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04R25/00
CPCH04R2225/61H04R25/407
Inventor 森井景子金森丈郎水岛考一郎
Owner PANASONIC CORP
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