EP1101390A1 - Hörhilfe mit verbesserter sprachverständlichkeit durch frequenzselektive signalverarbeitung sowie verfahren zum betrieb einer derartigen hörhilfe - Google Patents
Hörhilfe mit verbesserter sprachverständlichkeit durch frequenzselektive signalverarbeitung sowie verfahren zum betrieb einer derartigen hörhilfeInfo
- Publication number
- EP1101390A1 EP1101390A1 EP99934667A EP99934667A EP1101390A1 EP 1101390 A1 EP1101390 A1 EP 1101390A1 EP 99934667 A EP99934667 A EP 99934667A EP 99934667 A EP99934667 A EP 99934667A EP 1101390 A1 EP1101390 A1 EP 1101390A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- partial signals
- analysis
- hearing aid
- partial
- signal
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 33
- 238000004458 analytical method Methods 0.000 claims description 31
- 238000001514 detection method Methods 0.000 claims description 10
- 230000006978 adaptation Effects 0.000 claims description 4
- 230000003750 conditioning effect Effects 0.000 abstract 1
- 238000012067 mathematical method Methods 0.000 description 3
- 208000032041 Hearing impaired Diseases 0.000 description 1
- 206010043458 Thirst Diseases 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000009795 derivation Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000035922 thirst Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
- G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
- G10L21/0208—Noise filtering
-
- 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
- H04R25/50—Customised settings for obtaining desired overall acoustical characteristics
- H04R25/505—Customised settings for obtaining desired overall acoustical characteristics using digital signal processing
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
- G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
- G10L21/0208—Noise filtering
- G10L21/0216—Noise filtering characterised by the method used for estimating noise
- G10L21/0232—Processing in the frequency domain
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2225/00—Details of deaf aids covered by H04R25/00, not provided for in any of its subgroups
- H04R2225/43—Signal processing in hearing aids to enhance the speech intelligibility
Definitions
- the invention relates to a hearing aid with the features of the upper part of claim 1 and a method for operating a hearing aid with the features of the preamble of claim 5.
- horn aids are wearable on the head and have special hearing programs for suppressing Storlarm, whereby certain frequency components are evaporated by activating a filter. In this way, an improvement in general Storlarm situations can be achieved, which is however not sufficient for many applications.
- the invention has for its object to provide a hearing aid, such as a wearable on the head hearing aid or an implantable hearing aid and a method for operating a hearing aid, which improve speech intelligibility in a variety of Hors tuations.
- the Aufgaoe is solved for the hearing aid by the features of the characterizing part of claim 1 in conjunction with the features of the preamble.
- Advantageous embodiments of the hearing aid are realized by subclaims 2-4.
- the task is carried out by
- the hearing aid according to the invention has an analysis element for the detection of speech information in the partial signals split by the filter element of the hearing device. When voice information is successfully detected, the respective part is raised (amplified) by an adaptation element, so that the voice information is amplified.
- the hearing aid according to the invention there is no general increase in certain frequency ranges in which there is a higher probability of speech information, but the individual partial signals are first analyzed and checked for the presence of speech information. Only when speech information is actually present are the respective partial signals raised, and thus the speech information in the present partial signal is amplified in relation to the (non-raised) background noise in further partial signals.
- the split partial signals have the lowest possible frequency range.
- the lower the frequency range of the partial signals the more accurately speech information can be separated from noise and an isolated and targeted increase in detected speech information can take place, which can clearly improve speech intelligibility.
- the respective partial signal can also be raised in the detection of speech within a short Em- / Auswömngze ⁇ t.
- the analysis element advantageously comprises several analysis programs for the detection of different Sorachinforma- t ones and speech patterns.
- an analysis program can be used to detect sudden level peaks (“thirsts”).
- level peaks of this type are often speech information, the level of which exceeds the constant and median level noise.
- the hearing aid according to the invention makes it possible to detect and specifically raise short-term and only point-by-point speech information.
- the control process is ended immediately when the analysis element determines that there is no longer any speech information. It is thus avoided that the store alarm resuming after the voice information is also raised.
- an analysis is first carried out for the detection of speech information in the partial signals, which are obtained by splitting the overall signal into a filter element.
- speech information in the partial signals is determined by detecting level peaks (“burscs”). When such level peaks occur, there is a high probability of speech information which can be differentiated from never level noise (eg background noise).
- the respective partial signal can be analyzed in its signal curve using mathematical methods and characteristic values in the manner of a curve discussion.
- an average value and the course of an envelope of the partial signal are determined. If level peaks occur, the amount of the envelope exceeds the amount of the mean. Such an excess can be used as a criterion for the presence of a level peak, so that the presence of speech information can thereby be detected when analyzing the partial signal.
- the partial signal under consideration can then be raised in order to amplify the detected speech information in relation to low-level noise.
- the partial signal can only be raised when the amount of the envelope exceeds the amount of the mean value of the partial signal by an adjustable minimum value in order to avoid an increase in the partial signal in the event of smaller level fluctuations.
- auditory parameters can also be determined to analyze the partial signal in order to detect certain speech information and speech patterns and to raise the partial signal in accordance with the determined speech information type or speech pattern type by a corresponding suitable amount.
- the analysis of the partial signals according to the invention can be carried out in arbitrarily short time intervals in order to also detect individual speech elements that occur only briefly (e.g. vowels, sibilants, consonants etc.) and practically with immediate effect and only low em / Ausw ⁇ ngze ⁇ ten to improve
- the method according to the invention thus enables selective improvement of speech intelligibility.
- the control according to the invention starts up within a very short settling time ( ⁇ than 2 ms) and switches off within an equally short settling time if no more speech is detected.
- FIG. 1 shows a basic circuit diagram of a hearing aid according to the invention
- the signal picked up by the microphone 1 passes through the signal processing unit 2 to the receiver 3 in the aid of FIG. 1.
- the signal processing unit 2 contains a preamplifier 4, an A / D converter 5 and a filter element 6 for splitting the overall signal into several partial signals 12, in the present case in the three channels 11, 11 ', 11''.
- the partial signals of the individual channels 11, 11 ', 11'' are checked for the presence of speech. If speech is detected, the respective partial signal 12 in the adaptation element 8 is raised (amplified) via the connection between the analysis element 7 and the adaptation device 8, in order to improve the intelligibility of speech.
- the partially raised partial signals are further processed in the signal processing element 9 (for example by AGC circuits). After the partial signals 12 have been combined and a D / A conversion has been carried out in the D / A converter 10, the overall signal is supplied to the listener 3 with improved speech intelligibility.
- FIG. 2 is a schematic illustration and shows a relatively long level increase for reasons of clarity.
- the method according to the invention also enables the detection of short-term peaks (not shown).
- the analysis of the partial signal 12 of the respective channel 11, 11 ', 11' ' is used for detection by Spracne, since only when speech information is present should the respective partial signal 12 according to the invention be raised in the analysis time segment under consideration, in order to avoid that em Noise level is raised.
- the mean value 13 and the envelope 14 (shown schematically) of the partial signal 12 are formed in the analysis element 7 for analyzing the course of the partial signal 12.
- the envelope 14 reaches the value B, which only slightly exceeds the value C of the mean value 13.
- the amount of the envelope 14 increases to the value A, as a result of which the coverage area 15 between the envelope 14 and the mean value 13 increases. It can be assumed that the value A is above that between the value B and the value A. Limit X lies. If the limit value X is exceeded by the value A of the envelope 14, speech is detected between the times t] _ and t 2 and the partial signal 12 is raised during this period to improve speech intelligibility.
- the increase occurs with the shortest possible settling time of less than 2 ms after ti em and ends after t with the shortest possible settling time of also less than 2 ms.
- the method according to the invention thus responds briefly and spontaneously to the speech information present between times ti and t in partial signal 12 and raises partial signal 12 accordingly between times and t 2 .
Landscapes
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Physics & Mathematics (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Human Computer Interaction (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Quality & Reliability (AREA)
- Computational Linguistics (AREA)
- Multimedia (AREA)
- General Health & Medical Sciences (AREA)
- Neurosurgery (AREA)
- Otolaryngology (AREA)
- Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
- Circuit For Audible Band Transducer (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19833434 | 1998-07-24 | ||
DE19833434 | 1998-07-24 | ||
PCT/EP1999/004884 WO2000005923A1 (de) | 1998-07-24 | 1999-07-12 | Hörhilfe mit verbesserter sprachverständlichkeit durch frequenzselektive signalverarbeitung sowie verfahren zum betrieb einer derartigen hörhilfe |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1101390A1 true EP1101390A1 (de) | 2001-05-23 |
EP1101390B1 EP1101390B1 (de) | 2004-04-14 |
Family
ID=7875242
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99934667A Expired - Lifetime EP1101390B1 (de) | 1998-07-24 | 1999-07-12 | Hörhilfe mit verbesserter sprachverständlichkeit durch frequenzselektive signalverarbeitung sowie verfahren zum betrieb einer derartigen hörhilfe |
Country Status (5)
Country | Link |
---|---|
US (1) | US6768801B1 (de) |
EP (1) | EP1101390B1 (de) |
DE (1) | DE59909190D1 (de) |
DK (1) | DK1101390T3 (de) |
WO (1) | WO2000005923A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112822617A (zh) * | 2019-11-15 | 2021-05-18 | 西万拓私人有限公司 | 包括助听仪器的助听系统以及用于操作助听仪器的方法 |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10228826A1 (de) * | 2002-06-27 | 2004-01-29 | Siemens Audiologische Technik Gmbh | Akustikmodul für ein Hörhilfsgerät |
WO2005084074A2 (en) | 2004-03-01 | 2005-09-09 | Gn Resound A/S | Hearing aid with automatic switching between modes of operation |
US7489789B2 (en) | 2004-03-02 | 2009-02-10 | Oticon A/S | Method for noise reduction in an audio device and hearing aid with means for reducing noise |
US8515108B2 (en) * | 2007-06-15 | 2013-08-20 | Cochlear Limited | Input selection for auditory devices |
EP2232700B1 (de) | 2007-12-21 | 2014-08-13 | Dts Llc | System zur einstellung der wahrgenommenen lautstärke von tonsignalen |
DK2255548T3 (da) * | 2008-03-27 | 2013-08-05 | Phonak Ag | Fremgangsmåde til drivning af et høreapparat |
US8538042B2 (en) | 2009-08-11 | 2013-09-17 | Dts Llc | System for increasing perceived loudness of speakers |
DE102011006511B4 (de) | 2011-03-31 | 2016-07-14 | Sivantos Pte. Ltd. | Hörhilfegerät sowie Verfahren zum Betrieb eines Hörhilfegeräts |
WO2013019562A2 (en) * | 2011-07-29 | 2013-02-07 | Dts Llc. | Adaptive voice intelligibility processor |
US9312829B2 (en) | 2012-04-12 | 2016-04-12 | Dts Llc | System for adjusting loudness of audio signals in real time |
US20140185850A1 (en) * | 2013-01-02 | 2014-07-03 | Starkey Laboratories, Inc. | Method and apparatus for tonal enhancement in hearing aid |
DE102015201073A1 (de) | 2015-01-22 | 2016-07-28 | Sivantos Pte. Ltd. | Verfahren und Vorrichtung zur Rauschunterdrückung basierend auf Inter-Subband-Korrelation |
CN113470691A (zh) * | 2021-07-08 | 2021-10-01 | 浙江大华技术股份有限公司 | 一种语音信号的自动增益控制方法及其相关装置 |
EP4138416A1 (de) | 2021-08-16 | 2023-02-22 | Sivantos Pte. Ltd. | Hörhilfsystem mit einem hörgerät und verfahren zum betreiben des hörgeräts |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR577441A (fr) | 1924-02-20 | 1924-09-05 | Appareil rince-tonneaux ou récipients quelconques, à mouvement rotatif automatique, pouvant être employé aussi pour l'arrosage | |
DE3003315C2 (de) | 1980-01-30 | 1982-09-16 | Siemens AG, 1000 Berlin und 8000 München | Verfahren zur Erzeugung von elektrokutanen Reizmustern als Träger akustischer Information und Gerät zur Durchführung dieses Verfahren |
US4366349A (en) | 1980-04-28 | 1982-12-28 | Adelman Roger A | Generalized signal processing hearing aid |
DE3151352A1 (de) | 1981-01-09 | 1982-09-02 | National Research Development Corp., London | "hoerhilfe" |
WO1985002085A1 (en) | 1983-10-25 | 1985-05-09 | The Commonwealth Of Australia | Hearing aid amplification method and apparatus |
EP0219025B1 (de) | 1985-10-16 | 1990-06-13 | Siemens Aktiengesellschaft | Hörgerät |
DE3802903A1 (de) | 1988-02-01 | 1989-08-10 | Siemens Ag | Einrichtung zur uebertragung von sprache |
US4852175A (en) * | 1988-02-03 | 1989-07-25 | Siemens Hearing Instr Inc | Hearing aid signal-processing system |
US5225836A (en) | 1988-03-23 | 1993-07-06 | Central Institute For The Deaf | Electronic filters, repeated signal charge conversion apparatus, hearing aids and methods |
DK406189A (da) | 1989-08-18 | 1991-02-19 | Otwidan Aps Forenede Danske Ho | Fremgangsmaade og apparat til klassifikation af et blandet tale- og stoejsignal |
CH681334A5 (en) * | 1990-12-21 | 1993-02-26 | Ascom Zelcom Ag | Speech enhancement system for hearing aid - uses filters for adjusting speech signal spectral envelope by amplifying signal peaks |
FR2690550A1 (fr) * | 1992-04-28 | 1993-10-29 | Spic France Sa | Dispositif d'analyse de la parole et des phénomènes acoustiques. |
DE4340817A1 (de) | 1993-12-01 | 1995-06-08 | Toepholm & Westermann | Schaltungsanordnung für die automatische Regelung von Hörhilfsgeräten |
US5867581A (en) * | 1994-10-14 | 1999-02-02 | Matsushita Electric Industrial Co., Ltd. | Hearing aid |
US5600728A (en) | 1994-12-12 | 1997-02-04 | Satre; Scot R. | Miniaturized hearing aid circuit |
DE19703228B4 (de) * | 1997-01-29 | 2006-08-03 | Siemens Audiologische Technik Gmbh | Verfahren zur Verstärkung von Eingangssignalen eines Hörgerätes sowie Schaltung zur Durchführung des Verfahrens |
-
1999
- 1999-07-12 WO PCT/EP1999/004884 patent/WO2000005923A1/de active IP Right Grant
- 1999-07-12 EP EP99934667A patent/EP1101390B1/de not_active Expired - Lifetime
- 1999-07-12 DE DE59909190T patent/DE59909190D1/de not_active Expired - Lifetime
- 1999-07-12 US US09/744,517 patent/US6768801B1/en not_active Expired - Fee Related
- 1999-07-12 DK DK99934667T patent/DK1101390T3/da active
Non-Patent Citations (1)
Title |
---|
See references of WO0005923A1 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112822617A (zh) * | 2019-11-15 | 2021-05-18 | 西万拓私人有限公司 | 包括助听仪器的助听系统以及用于操作助听仪器的方法 |
CN112822617B (zh) * | 2019-11-15 | 2022-06-07 | 西万拓私人有限公司 | 包括助听仪器的助听系统以及用于操作助听仪器的方法 |
Also Published As
Publication number | Publication date |
---|---|
DE59909190D1 (de) | 2004-05-19 |
EP1101390B1 (de) | 2004-04-14 |
DK1101390T3 (da) | 2004-08-02 |
US6768801B1 (en) | 2004-07-27 |
WO2000005923A1 (de) | 2000-02-03 |
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