EP1676529A1 - Méthode pour visualiser la capacite auditive - Google Patents

Méthode pour visualiser la capacite auditive Download PDF

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Publication number
EP1676529A1
EP1676529A1 EP04030945A EP04030945A EP1676529A1 EP 1676529 A1 EP1676529 A1 EP 1676529A1 EP 04030945 A EP04030945 A EP 04030945A EP 04030945 A EP04030945 A EP 04030945A EP 1676529 A1 EP1676529 A1 EP 1676529A1
Authority
EP
European Patent Office
Prior art keywords
hearing
image
hearing aid
frequency range
visualization
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP04030945A
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German (de)
English (en)
Inventor
Rolf Hensel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sonova Holding AG
Original Assignee
Phonak AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Phonak AG filed Critical Phonak AG
Priority to EP04030945A priority Critical patent/EP1676529A1/fr
Publication of EP1676529A1 publication Critical patent/EP1676529A1/fr
Withdrawn legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R29/00—Monitoring arrangements; Testing arrangements
    • H04R29/008—Visual indication of individual signal levels
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R25/00—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception
    • H04R25/70—Adaptation of deaf aid to hearing loss, e.g. initial electronic fitting

Definitions

  • the present invention relates to a method for visualizing according to the preamble of claim 1 and to software for carrying out the method.
  • the presentation of the hearing aid setting remains open, which must necessarily be selected on the basis of the visualized text.
  • the object is achieved by means of a method according to the wording of claim 1 and by means of software for carrying out the method.
  • the visualization is not primarily by means of a text, but is made visible by means of an image.
  • the hearing of a person be visualized by means of various image parameters, such as, for example, by means of brightness, contrast, image sharpness, hue and / or saturation.
  • the visualization takes place at a certain frequency, it being possible or useful to perform the pictorial representation in at least two preferably three different frequency ranges, such as in the low-tone, mid-high and high-tone range.
  • a further advance is provided by the present inventive method, in that not only the hearing of a person per se is made visible, but also that the improvements achieved when using a hearing aid can be visualized.
  • a fine adjustment of the hearing aid is also possible, ie the hearing aid can be tailored precisely to the needs a person can be set exactly what can be visualized by means of an image representation.
  • FIG. 1 shows loudness perception in percent as a function of the sound pressure or loudness in decibels in a specific frequency range.
  • Curve A shows a normal course, i. without hearing loss
  • curve B shows the course of a curve with a hearing loss of 30 dB
  • curve C finally with a hearing loss of 60 dB.
  • the loudness must be at least 30 dB before the person with the corresponding hearing loss can hear something.
  • FIGS. 2a to 2c The hearing losses of the three curves A, B and C are shown pictorially in FIGS. 2a to 2c. It shows figure 2a shows an image which is almost identical to the original or which corresponds to the almost linear sensitivity curve A for normal hearing persons.
  • Figure 2b shows visualized the hearing loss of 30 dB. Silent sounds, i. bright shades can not be differentiated. Individual objects analogous to certain sound events, e.g. the magazine rack 1, are no longer identifiable.
  • FIG. 2c shows the hearing loss of 60 dB. Only loud sounds are perceived. Certain objects or sound events, such as the two round objects 3 on the windowsill, fall down unpleasantly. It may be e.g. to act on objects that are representative of noise.
  • FIG. 3a shows almost identically the original image corresponding to the almost linear sensitivity curve A from FIG. 1.
  • FIG. 3 b shows almost identically the original image corresponding to the almost linear sensitivity curve A from FIG. 1.
  • FIG. 3 b shows almost identically the original image corresponding to the almost linear sensitivity curve A from FIG. 1.
  • FIG. 3 b shows almost identically the original image corresponding to the almost linear sensitivity curve A from FIG. 1.
  • FIG. 3 b shows 30 dB hearing loss according to curve B.
  • insignificant objects gain more weight. For example, the hair 5 of the person right of the center in the picture.
  • Figure 3c shows the same scene with 60 dB hearing loss.
  • the central object ie the woman 7 in the Middle disappears. This is a good example of a hearing-impaired "hearing" situation in a high-noise environment.
  • FIGS. 2a to 2c and 3a to 3c show the hearing loss in a specific frequency range of a person without the use of a hearing aid or a hearing aid. Based on the hearing loss described above, the influence of the hearing aid on images can now be visualized.
  • the ambient or input sound or the loudness is amplified by means of the hearing aid.
  • the hearing loss or loudness perception is expediently displayed in at least two different frequency ranges, such as in the low-frequency and high-frequency range.
  • a plurality of frequency ranges can also be selected for the display, as shown for example in FIG. 4, where the visualization of the loudness sensation in three different frequency ranges is shown summarized in a single image.
  • Such a combined representation for three different frequency bands could also be achieved, for example, by assigning the three color components of a color image (eg consisting of red, green and blue) to one frequency band each.
  • a hearing loss in the high-frequency range or insufficient compensation by a hearing aid in this frequency band
  • FIG. 5 shows the gain on the basis of a so-called compressive curve D.
  • the graph shows the output sound level in decibels with respect to the input sound level in decibels, which results from the gain using the compressive curve D. It can clearly be seen from FIG. 5 that virtually no amplification of the input sound occurs in the range 0-20 dB, since the self-noise of the hearing aid is generally dominant in this loudness range. An amplification of this noise would be perceived by the hearing aid wearer as unpleasant.
  • the compressive curve D undergoes a kink, so that above this loudness, the amplification by the hearing aid decreases compressively.
  • the gain is 20 dB at an input sound level of 40 dB
  • the output sound level is 60 dB.
  • an input sound level of 80 dB on the other hand, virtually no amplification is necessary, since, according to the representation in FIG. 1, the audibility is practically 100% with this loudness.
  • FIG. 6 shows, analogously to FIG. 1, the loudness perception of the maximum loudness as a function of the ambient or input sound in decibels.
  • curve A representative of a person without hearing loss.
  • Curve B is analogous to that of Figure 1, corresponding to a hearing loss of 30 dB.
  • curve E With a linear gain of 30 dB, curve E would result.
  • the person with a hearing, according to curve E, as a result would already have a loudness perception of 100% at an ambient sound pressure of 70 dB. In other words, a louder ambient sound pressure would be perceived as unpleasant or disturbing.
  • raw-image data In order to visualize the amplification by means of a hearing aid analogously to the images 2a-2c, 3a-3c and 4, raw-image data must be correspondingly transformed for the effective presentation of the perceived hearing-ability.
  • image transmission or transformation is shown graphically in FIG.
  • the corresponding determination of the image data can take place by means of suitable software on which the graphic representation according to FIG. 7 is based.
  • the starting point is the original image content X corresponding to the input sound pressure in decibels. Due to the compression curve D, analogous to Figure 5, takes place at the intersection Y, the corresponding gain, which on the hearing Q is transmitted in curve B as shown in FIG. It is the auditory canal sound pressure, which results from ambient sound pressure and amplification. Finally, from the point of intersection Q on curve B, the transmission to the individual hearing sensation of the person using the hearing device ensues, resulting in the point Z.
  • FIGS. 8a to 8c using a hearing aid.
  • Weiss corresponds to a sound pressure of 0 dB resp. 0% loudness and black a sound pressure of 100 dB sound pressure resp. 100% loudness.
  • Figure 8a shows the perception of a person with 30 dB hearing loss using a linear hearing aid, i. with gain of 30 dB as shown by curve E in Fig. 6. While the linear gain quietly raises sounds, i. bright content, but loud sounds are too loud. That is, dark parts are no longer differentiable, but appear only as black areas.
  • FIG. 8b again shows the pictorial sensation of a person with a hearing loss of 30 dB, but corrected with a compressive hearing aid according to the transfer curve D in FIG. 5, and correspondingly resulting hearing sensation, respectively.
  • the entire image dynamics is somewhat compressed, in contrast to the subsequent original in Figure 8c. Because of the Noise suppression in the range of 0 to 20 dB, very quiet sounds are not transmitted. This is visible in very bright objects, such as drinking glasses 9 and plates on the table. These objects are not important; important are the people who are in conversation with each other. The persons are shown practically equivalent, as in the original according to Figure 8c.
  • the visualization of the loudness sensation may be in a plurality of frequency ranges, such as low and high frequency ranges.
  • the representation can take place in color, whereby different colors are preferably selected for the different frequency ranges to be displayed.
  • the image representation in the low-frequency range is preferably in blue, while for example, the color red is selected for the high-frequency range.
  • the advantage of the visual representation in color is that now the different visualizations can be put together, and from the resulting Coloring on the perception of loudness in the different frequency ranges in one and the same picture can be closed. If, for example, an image has a bluish cast, it can be assumed that the loudness perception in the low-frequency range, depending on the definition of the color scheme, can be interpreted as reduced or increased. The same applies, for example, to a greenish-tinted image in that, for example, a reduced or increased loudness sensation can be inferred in the midrange, again depending on the interpretation of the coloration.
  • FIG. 9 diagrammatically shows the course of a hearing device adaptation, as is possible or carried out using the method according to the invention.
  • the customer 21 first determines, for example by means of a hearing test, the hearing or loudness perception (eg in the form of an audiogram) and visualizes it by means of, for example, a screen 23.
  • the fine-tuning acoustician 29 adjusts with the aid of appropriate software 25, and based on this, the hearing aid setting on the two hearing aids 27 takes place.
  • the image material suitable for the image display is retrieved from an image database 31, each time according to the situation to be assessed, the corresponding image is selected. Reference is made to the two pictorial representations in Figures 2 and 3.
  • the loudness perception or the hearing ability is again determined by the customer 21, who now carries the hearing aids, and again visually displayed, for example, on a screen 23. Again, a check is made by the acoustician 29, who now makes the fine adjustment.
  • the whole process is repeated again.
  • the whole process must be repeated in the respective frequency ranges.
  • the process should be performed at least in two frequency ranges, preferably in three, such as the Low frequency range, the midrange as in the treble range.
  • the hearing aids are generally frequency-sensitive, ie the hearing amplification can take place to different degrees in different frequency ranges.
  • Complex hearing aids can split the input sound signal into up to 20 frequency bands and process each of these signal components individually. Such devices have in principle the advantage that they can be set very accurately to individual hearing problems, but the necessary hearing aid fitting is extremely difficult and tedious, if no auxiliary means such as the inventive method for visualization of hearing, resp. Hearing are available.
  • FIGS. 1 to 9 are only examples which can be modified, modified or supplemented by further elements in any desired manner.
  • colors it is also possible other parameters with respect to hearing, resp.
  • Visual perception of hearing such as the influence of ambient noise, differentiated perception of loudness, intelligibility, etc.
  • color tones or of color saturation for example, the representation of loudness perception in different frequency ranges As already mentioned above, which is especially possible in a single image.

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  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
EP04030945A 2004-12-29 2004-12-29 Méthode pour visualiser la capacite auditive Withdrawn EP1676529A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP04030945A EP1676529A1 (fr) 2004-12-29 2004-12-29 Méthode pour visualiser la capacite auditive

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP04030945A EP1676529A1 (fr) 2004-12-29 2004-12-29 Méthode pour visualiser la capacite auditive

Publications (1)

Publication Number Publication Date
EP1676529A1 true EP1676529A1 (fr) 2006-07-05

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EP04030945A Withdrawn EP1676529A1 (fr) 2004-12-29 2004-12-29 Méthode pour visualiser la capacite auditive

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EP (1) EP1676529A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007035172A1 (de) * 2007-07-27 2009-02-05 Siemens Medical Instruments Pte. Ltd. Hörsystem mit visualisierter psychoakustischer Größe und entsprechendes Verfahren

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09308620A (ja) * 1996-05-22 1997-12-02 Morita Mfg Co Ltd オージオメータ
US20040008849A1 (en) * 2002-07-11 2004-01-15 Jonathan Moller Visual or audio playback of an audiogram
DE10231406A1 (de) * 2002-07-11 2004-01-22 Phonak Ag Visuelle oder audiomäßige Wiedergabe eines Audiogrammes

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09308620A (ja) * 1996-05-22 1997-12-02 Morita Mfg Co Ltd オージオメータ
US20040008849A1 (en) * 2002-07-11 2004-01-15 Jonathan Moller Visual or audio playback of an audiogram
DE10231406A1 (de) * 2002-07-11 2004-01-22 Phonak Ag Visuelle oder audiomäßige Wiedergabe eines Audiogrammes

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 1998, no. 04 31 March 1998 (1998-03-31) *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007035172A1 (de) * 2007-07-27 2009-02-05 Siemens Medical Instruments Pte. Ltd. Hörsystem mit visualisierter psychoakustischer Größe und entsprechendes Verfahren
EP2023668A2 (fr) 2007-07-27 2009-02-11 Siemens Medical Instruments Pte. Ltd. Appareil auditif avec visualisation des grandeurs psycho-acoustiques et procédé correspondant
US8213650B2 (en) 2007-07-27 2012-07-03 Siemens Medical Instruments Pte. Ltd. Hearing device with a visualized psychoacoustic variable and corresponding method
EP2023668A3 (fr) * 2007-07-27 2015-03-25 Siemens Medical Instruments Pte. Ltd. Appareil auditif avec visualisation des grandeurs psycho-acoustiques et procédé correspondant
EP2023668B1 (fr) 2007-07-27 2019-11-20 Sivantos Pte. Ltd. Appareil auditif avec visualisation des grandeurs psycho-acoustiques et procédé correspondant

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