EP3791385A1 - Method and apparatus for airborne-sound acoustic monitoring of an exterior and/or an interior of a vehicle, vehicle and computer-readable storage medium - Google Patents
Method and apparatus for airborne-sound acoustic monitoring of an exterior and/or an interior of a vehicle, vehicle and computer-readable storage mediumInfo
- Publication number
- EP3791385A1 EP3791385A1 EP19709908.8A EP19709908A EP3791385A1 EP 3791385 A1 EP3791385 A1 EP 3791385A1 EP 19709908 A EP19709908 A EP 19709908A EP 3791385 A1 EP3791385 A1 EP 3791385A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- electrical signal
- detection
- microphone
- trigger
- voice
- 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- Withdrawn
Links
- 238000000034 method Methods 0.000 title claims abstract description 28
- 238000012544 monitoring process Methods 0.000 title claims abstract description 15
- 238000001514 detection method Methods 0.000 claims abstract description 62
- 238000011156 evaluation Methods 0.000 claims abstract description 27
- 230000004913 activation Effects 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 claims 1
- 238000013461 design Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 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
- G10L15/00—Speech recognition
- G10L15/22—Procedures used during a speech recognition process, e.g. man-machine dialogue
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
- G10K11/178—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
- G10K11/1783—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase handling or detecting of non-standard events or conditions, e.g. changing operating modes under specific operating conditions
- G10K11/17837—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase handling or detecting of non-standard events or conditions, e.g. changing operating modes under specific operating conditions by retaining part of the ambient acoustic environment, e.g. speech or alarm signals that the user needs to hear
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
- G10K11/178—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
- G10K11/1787—General system configurations
- G10K11/17879—General system configurations using both a reference signal and an error signal
- G10K11/17881—General system configurations using both a reference signal and an error signal the reference signal being an acoustic signal, e.g. recorded with a microphone
-
- 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
- G10L15/00—Speech recognition
- G10L15/08—Speech classification or search
-
- 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
- G10L15/00—Speech recognition
- G10L15/28—Constructional details of speech recognition systems
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R3/00—Circuits for transducers, loudspeakers or microphones
- H04R3/005—Circuits for transducers, loudspeakers or microphones for combining the signals of two or more microphones
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K2210/00—Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups
- G10K2210/10—Applications
- G10K2210/128—Vehicles
- G10K2210/1281—Aircraft, e.g. spacecraft, airplane or helicopter
Definitions
- the invention relates to a method for airborne acoustical monitoring of an Au h- and / or an interior of a vehicle according to the preamble of claim 1. Furthermore, the invention relates to a device for airborne acoustic monitoring of an exterior and / or an interior of a vehicle, a driving convincing with such a device and a computer-readable storage medium on which a program is stored with a program code for performing the method ge.
- the present invention is therefore an object of the invention to provide a method and apparatus for airborne acoustic monitoring of an outdoor and / or in a nenraums of a vehicle, by means of which the power consumption can be reduced.
- the power consumption can be significantly reduced.
- the device for trigger detection ensures that safety-relevant data is recorded.
- power is also required for the pre-evaluation by the device for trigger recognition, since the trigger detection device only ever performs a limited evaluation, the power consumption is comparatively low.
- the inventive method thus enables energy-efficient speech and / or noise detection.
- any noise word or phrase can be used.
- several triggers and / or specific frequency ranges can be used as triggers which result in activation of the voice and / or noise recognition device.
- the electrical signal S be amplified before it is sent to the trigger detection device for preliminary evaluation. In this way, the accuracy of the pre-evaluation can be increased.
- the method for airborne acoustic monitoring can be carried out such that upon detection of a Trig gers at least one further microphone from an inactive or restricted active state is set to a fully active state. This means that not all available microphones have to be permanently active or fully active. In this way, the power consumption can be further reduced.
- a trigger for example, suffice that only a single one of several microphones is active or at least partially active to airborne sound in a convert electrical signal, which is then subjected by means of the device for trigger recognition of a pre-evaluation. If a trigger is detected, in addition to the device for voice and / or noise detection - at least one further micro phone switched active. In this way, the data density provided to the speech and / or noise recognition device can be increased, so that the accuracy of the evaluation continues to increase.
- a microphone with an integrated preamplifier for signal amplification is used. In this way, a be particularly compact design arrangement can be achieved.
- a computer-readable storage medium on which a program is stored with a program code which executes the method according to the invention when the program runs on a computer.
- FIG. 1 is a schematic representation of a device according to the invention according to a first preferred embodiment
- FIG. 2 is a schematic representation of a microphone for a device according to the invention
- FIG. 3 is a schematic representation of a device according to the invention according to a second preferred embodiment
- Fig. 5 is a schematic representation of a device according to the invention according to a fourth preferred embodiment.
- Fig. 6 is a schematic representation of a device according to the invention according to a fifth preferred embodiment.
- Fig.l The illustration of Fig.l is to take a device for airborne sound acoustic monitoring of an exterior and / or an interior of a vehicle, which includes a microphone 1 with a housing 7, in which a device for trigger detection 3 and a preamplifier 4 are integrated. Hit the microphone 1 sound waves 8, The microphone 1 converts this into an electrical signal S, which is passed to the means for trigger detection 3 and to the preamplifier 4.
- the signal S is subjected to a preliminary evaluation. If a Trig detected ger, the device for trigger detection 3 sends a signal ST to a device for Speech and / or noise recognition 2, which is connected to the microphone 1 to make a detailed evaluation of the signal S. However, the voice and / or noise recognition device 2 is deactivated until it reaches the signal ST. Only then is the device for voice and / or noise recognition in a position to evaluate the signal S or amplified by means of the preamplifier 4 signal Sv.
- the microphone 1 - as exemplified in FIG. 2 represents - two signal outputs 5, 6 have.
- the signal S or Sv then leaves the microphone 1 via the signal output 5, while the signal ST 'via the signal output 6 is passed to the device for voice and / or noise recognition 2.
- the microphone 1 requires at least one input 9, 10 for Stromver supply, wherein the presently illustrated in FIG. 2 second input 10 is a Mas sean gleich is used.
- FIG. 1 A modification of the embodiment of Fig.l is shown in FIG. Here is le diglich the preamplifier 4 integrated into the housing 7 of the microphone 1.
- the device for trigger detection 3 is arranged outside of the housing 7.
- the interconnection is also chosen such that the device for trigger detection 3 receives the amplified signal Sv.
- FIG. 4 A further modification is shown in FIG. 4.
- the preamplifier 4 and the trigger detection device 3 are both outside the housing 7 is arranged and connected in such a way that the signal S unvericide to the device for trigger detection 3, but amplified to the device for speech and / or Ger ⁇ u scherkennung. 2 is directed.
- FIGS. 5 and 6 show further embodiments of a device according to the invention, the devices each having a number of microphones 1, 1, "1". believe it.
- 7, 7 ', 7 "of the microphones 1, G, l” are each a Vorver stronger 4, 4' 4 "integrated to amplify the signal S, S ', S".
- the device for trigger detection 3 is integrated in the housing 7 of the microphone 1
- the embodiment of FIG. 6 has a separate device for trigger detection 3.
Landscapes
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Multimedia (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Computational Linguistics (AREA)
- Human Computer Interaction (AREA)
- Signal Processing (AREA)
- General Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Quality & Reliability (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
- Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102018207280.9A DE102018207280A1 (en) | 2018-05-09 | 2018-05-09 | Method and device for airborne acoustic monitoring of an exterior and / or an interior of a vehicle, vehicle and computer-readable storage medium |
PCT/EP2019/055738 WO2019214866A1 (en) | 2018-05-09 | 2019-03-07 | Method and apparatus for airborne-sound acoustic monitoring of an exterior and/or an interior of a vehicle, vehicle and computer-readable storage medium |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3791385A1 true EP3791385A1 (en) | 2021-03-17 |
Family
ID=65724405
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19709908.8A Withdrawn EP3791385A1 (en) | 2018-05-09 | 2019-03-07 | Method and apparatus for airborne-sound acoustic monitoring of an exterior and/or an interior of a vehicle, vehicle and computer-readable storage medium |
Country Status (7)
Country | Link |
---|---|
US (1) | US11322130B2 (en) |
EP (1) | EP3791385A1 (en) |
JP (1) | JP7282804B2 (en) |
KR (1) | KR20210008022A (en) |
CN (1) | CN112106133B (en) |
DE (1) | DE102018207280A1 (en) |
WO (1) | WO2019214866A1 (en) |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH10319991A (en) * | 1997-05-20 | 1998-12-04 | Sony Corp | Method and device for voice recognition starting electronic equipment |
DE10234611A1 (en) | 2002-07-30 | 2004-02-19 | Robert Bosch Gmbh | Motor vehicle surroundings monitoring method, in which at least one directional microphone is used to capture the surrounding noise level which is then used as an additional information source for the vehicle monitoring system |
WO2012092562A1 (en) | 2010-12-30 | 2012-07-05 | Ambientz | Information processing using a population of data acquisition devices |
JP2012203122A (en) * | 2011-03-24 | 2012-10-22 | Panasonic Corp | Voice selection device, and media device and hands-free talking device using the same |
US8666751B2 (en) * | 2011-11-17 | 2014-03-04 | Microsoft Corporation | Audio pattern matching for device activation |
US9542933B2 (en) * | 2013-03-08 | 2017-01-10 | Analog Devices Global | Microphone circuit assembly and system with speech recognition |
US9892729B2 (en) * | 2013-05-07 | 2018-02-13 | Qualcomm Incorporated | Method and apparatus for controlling voice activation |
EP2801974A3 (en) * | 2013-05-09 | 2015-02-18 | DSP Group Ltd. | Low power activation of a voice activated device |
EP3000241B1 (en) * | 2013-05-23 | 2019-07-17 | Knowles Electronics, LLC | Vad detection microphone and method of operating the same |
GB2542268B (en) * | 2013-06-26 | 2018-04-18 | Cirrus Logic Int Semiconductor Ltd | Speech recognition |
US9697831B2 (en) * | 2013-06-26 | 2017-07-04 | Cirrus Logic, Inc. | Speech recognition |
EP3084760A4 (en) * | 2013-12-20 | 2017-08-16 | Intel Corporation | Transition from low power always listening mode to high power speech recognition mode |
US9699550B2 (en) | 2014-11-12 | 2017-07-04 | Qualcomm Incorporated | Reduced microphone power-up latency |
US9653079B2 (en) | 2015-02-12 | 2017-05-16 | Apple Inc. | Clock switching in always-on component |
GB2535766B (en) * | 2015-02-27 | 2019-06-12 | Imagination Tech Ltd | Low power detection of an activation phrase |
CN106161755A (en) * | 2015-04-20 | 2016-11-23 | 钰太芯微电子科技(上海)有限公司 | A kind of key word voice wakes up system and awakening method and mobile terminal up |
CN107102713A (en) * | 2016-02-19 | 2017-08-29 | 北京君正集成电路股份有限公司 | It is a kind of to reduce the method and device of power consumption |
CN107403621B (en) * | 2017-08-25 | 2020-06-30 | 深圳市沃特沃德股份有限公司 | Voice wake-up device and method |
-
2018
- 2018-05-09 DE DE102018207280.9A patent/DE102018207280A1/en active Pending
-
2019
- 2019-03-07 JP JP2020560767A patent/JP7282804B2/en active Active
- 2019-03-07 WO PCT/EP2019/055738 patent/WO2019214866A1/en unknown
- 2019-03-07 CN CN201980030745.3A patent/CN112106133B/en active Active
- 2019-03-07 KR KR1020207034969A patent/KR20210008022A/en active Search and Examination
- 2019-03-07 US US17/054,105 patent/US11322130B2/en active Active
- 2019-03-07 EP EP19709908.8A patent/EP3791385A1/en not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
JP2021520521A (en) | 2021-08-19 |
US11322130B2 (en) | 2022-05-03 |
US20210304724A1 (en) | 2021-09-30 |
KR20210008022A (en) | 2021-01-20 |
CN112106133A (en) | 2020-12-18 |
DE102018207280A1 (en) | 2019-11-14 |
WO2019214866A1 (en) | 2019-11-14 |
CN112106133B (en) | 2024-10-18 |
JP7282804B2 (en) | 2023-05-29 |
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