CN109427339A - A kind of vehicle noise measuring learning device based on database - Google Patents
A kind of vehicle noise measuring learning device based on database Download PDFInfo
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- CN109427339A CN109427339A CN201710779422.7A CN201710779422A CN109427339A CN 109427339 A CN109427339 A CN 109427339A CN 201710779422 A CN201710779422 A CN 201710779422A CN 109427339 A CN109427339 A CN 109427339A
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- 238000012545 processing Methods 0.000 claims abstract description 34
- 238000003860 storage Methods 0.000 claims abstract description 25
- 238000006243 chemical reaction Methods 0.000 claims abstract description 11
- 230000001133 acceleration Effects 0.000 claims description 8
- 238000010183 spectrum analysis Methods 0.000 claims description 5
- 238000010586 diagram Methods 0.000 description 6
- 238000004891 communication Methods 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000019771 cognition Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- 238000012549 training Methods 0.000 description 2
- 230000001149 cognitive effect Effects 0.000 description 1
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- 238000002474 experimental method Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
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- 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
- G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
- G10L19/02—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders
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- 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
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- 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
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- 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
- G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
- G10L25/03—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters
- G10L25/18—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters the extracted parameters being spectral information of each sub-band
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- Physics & Mathematics (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Computational Linguistics (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Human Computer Interaction (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Quality & Reliability (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Abstract
A kind of vehicle noise measuring learning device based on database, it include: noise gathering device, it selects recoding unit to record sound according to different type noise, and setting is standardized to recording position, recording mode and parameter, form corresponding recording file；Storage and processing unit, it is connect with the noise gathering device, format conversion is carried out to the recording file, full noise audio file is obtained and is stored, the recording file is filtered and format conversion simultaneously, obtains characteristic noise audio file and stored；And noise output device, it is connect with the storage and processing unit, restores the audio of the characteristic noise audio file and output.
Description
Technical field
The present invention relates to a kind of noise measuring learning devices, especially a kind of to ask for vehicle factor quality such as vehicle noises
Topic carries out the vehicle noise measuring learning device based on database of Data Detection study.
Background technique
Important component of the vehicle noise as complete vehicle quality, the concern by more and more consumers.Vehicle
Noise is related under vehicle stationary state and generated bad sound and vibration in driving process, by the maincenter for influencing passenger
Nerve reduces comfortableness and security.These noises make an uproar from engine, tire, the leakage of wind shake, air, fix bad and various shakes
It moves, is always that each automobile brand endeavours the technological difficulties solved, the noise problem for solving discovery in time, which becomes, ensures vehicle matter
The important link of amount.Therefore, it improves the relevant stock of knowledge of noise and ability to work is vital.
The vehicle noise measuring mode of learning that the prior art uses is using single video data, or even only oral biography
It states.It has the following disadvantages:
1. background noise is too big, noise distortion, many noises can not reappear in the video of recording；
2. for can not recorded video noise, it is only oral to narrate, exist and greatly understand deviation；
3. the subjective factor by staff is affected；
4. the video variance that distinct device is recorded is very big, noise level and type can not quantify, and can not carry out noise problem
Communication and comparison.
Summary of the invention
Technical problem to be solved by the invention is to provide one kind to carry out vehicle noise and other issues for vehicle factor
The vehicle noise measuring learning device based on database of Data Detection study.
To achieve the goals above, the present invention provides a kind of vehicle noise measuring learning device based on database,
In, comprising:
Noise gathering device, according to different type noise select recoding unit sound is recorded, and to recording position,
Recording mode and parameter are standardized setting, form corresponding recording file；
Storage and processing unit, connect with the noise gathering device, carry out format conversion to the recording file, obtain
Full noise audio file is simultaneously stored, while being filtered to the recording file and format conversion, is obtained feature and is made an uproar
Sound audio file is simultaneously stored；And
Noise output device connect with the storage and processing unit, restores the audio of the characteristic noise audio file
And it exports.
The above-mentioned vehicle noise measuring learning device based on database, wherein the recoding unit and it is described storage and
Processing unit connection, the recoding unit are headset, vibrating sensor or acceleration transducer.
The above-mentioned vehicle noise measuring learning device based on database, wherein the storage and processing unit include number
Processing unit is recorded according to library unit and noise, the Database Unit stores the recording text of the noise gathering device record
Part, full noise audio file and the characteristic noise audio file, noise record processing unit to the recording file into
The characteristic noise audio file, the recoding unit and the Database Unit point are obtained after row filtering processing and format conversion
It is not connect with noise record processing unit.
The above-mentioned vehicle noise measuring learning device based on database, wherein the Database Unit also stores noise
Source acquisition position data and noise spectrum analyze curve data.
The above-mentioned vehicle noise measuring learning device based on database, wherein it further include image recording device, and it is described
Storage and processing unit connection, for recording different types noise the corresponding environmental images of the recording file and form video
File.
The above-mentioned vehicle noise measuring learning device based on database, wherein described in the Database Unit also stores
Video file.
The above-mentioned vehicle noise measuring learning device based on database, wherein the noise output device includes sound equipment
Equipment and projection device.
The above-mentioned vehicle noise measuring learning device based on database, wherein further include semi-anechoic room, the noise is defeated
Device is arranged in the semi-anechoic room out.
The above-mentioned vehicle noise measuring learning device based on database, wherein the noise output device further includes sound
Sound control unit and headset, the sound control unit respectively with the storage and processing unit and the stereo set or headset
Connection.
The above-mentioned vehicle noise measuring learning device based on database, wherein the Database Unit according to noise come
Source distribution carries out classification storage to the full noise audio file and the characteristic noise audio file.
The technical effects of the invention are that:
The database that the present invention is recorded by accurate noise, noise spectrum is analyzed, feature of noise frequency abstraction is built, can mention
For the noise playback of high-fidelity and characteristic noise identification learning, using manpower and material resources sparingly, on the basis of not needing train experiment, fastly
It is horizontal that speed improves the cognitive learning to noise.It recorded, stored by noise problem present in examining vehicle, being quantified point
Analysis, then accurate objective displaying noise problem, improves the cognition to noise problem and resolution ability.
Below in conjunction with the drawings and specific embodiments, the present invention will be described in detail, but not as a limitation of the invention.
Detailed description of the invention
Fig. 1 is the operation principle schematic diagram of one embodiment of the invention；
Fig. 2 is the recoding unit structural schematic diagram of one embodiment of the invention；
Fig. 3 is the noise output services schematic illustration of one embodiment of the invention；
Fig. 4 is the noise output device structural schematic diagram of one embodiment of the invention.
Wherein, appended drawing reference
1 noise gathering device
2 recoding units
3 recording files
4 storages and processing unit
5 full noise audio files
6 characteristic noise audio files
7 noise output devices
8 headsets
9 acceleration transducers
10 Database Unit
11 noises record processing unit
12 image recording devices
13 stereo sets
14 projection devices
15 semi-anechoic rooms
16 sound control units
17 headsets
18 workstation computers
19 displays
20 hosts
Specific embodiment
Structural principle and working principle of the invention are described in detail with reference to the accompanying drawing:
It is the operation principle schematic diagram of one embodiment of the invention referring to Fig. 1, Fig. 1.Vehicle based on database of the invention
Noise measuring learning device, comprising: noise gathering device 1 selects recoding unit 2 to remember sound according to different type noise
Record, and setting is standardized to recording position, recording mode and parameter, form corresponding recording file 3；Storage and processing dress
4 are set, is connect with the noise gathering device 1, format conversion is carried out to the recording file 3, obtains full noise audio file 5 simultaneously
It is stored, while the recording file 3 is filtered and format conversion, obtained characteristic noise audio file 6 and go forward side by side
Row storage；And noise output device 7, it is connect with the storage and processing unit 4, restores the characteristic noise audio file 6
Audio and output.
Referring to fig. 2, Fig. 2 is the recoding unit structural schematic diagram of one embodiment of the invention.In the present embodiment, the recording is single
Member 2 preferably headset 8, vibrating sensor or acceleration transducer 9.Headset 8, vibrating sensor or acceleration transducer 9 can divide
It is not connect with noise record processing unit 11, noise can be recorded using the two simultaneously, can also be according to circumstances respectively adopted
Alternative one records noise and forms corresponding recording file 3.
It is the noise output services schematic illustration of one embodiment of the invention referring to Fig. 3, Fig. 3.It is described to deposit in the present embodiment
Storage and processing unit 4 include that Database Unit 10 and noise record processing unit 11, and the two can be integrated in workstation computer 18
In host 20, the Database Unit 10 stores the recording file 3, the full noise audio that the noise gathering device 1 records
File 5 and the characteristic noise audio file 6, the noise record processing unit 11 are filtered place to the recording file 3
Obtain the characteristic noise audio file 6 after reason and format conversion, the recoding unit 2 and the Database Unit 10 respectively with
The noise record processing unit 11 connects.Wherein, also settable noise spectrum analysis software carries out frequency to noise in host 20
Spectrum analysis, the Database Unit 10 can also store noise source acquisition position data and noise spectrum analysis curve data.This reality
Applying example may also include image recording device 12, connect with the storage and processing unit 4, the institute for recording different types noise
It states the corresponding environmental images of recording file 3 and generates video file, the Database Unit 10 also stores the video file, should
Video file can be played out by display 19.The Database Unit 10 is preferably made an uproar according to noise source distribution to described entirely
Sound audio file 5 and the characteristic noise audio file 6 carry out classification storage.
Referring to fig. 4, Fig. 4 is the noise output device structural schematic diagram of one embodiment of the invention.It is described to make an uproar in the present embodiment
Sound output device 7 may include stereo set 13 and projection device 14.The noise output device 7 may also include sound control unit
16 and headset 17, the sound control unit 16 respectively with the storage and processing unit 4 and the stereo set 13 or headset
17 connections.It may also include semi-anechoic room 15, the noise output device 7 is arranged in the semi-anechoic room 15.
High-fidelity headphone 8, vibrating sensor or highly sensitive acceleration transducer 9, headset 8, vibration can be used in the present invention
Sensor or acceleration transducer 9 are used as noise gathering end, can clearly indicate the location information of collection point, guarantee that different vehicle is made an uproar
The comparability of sound acquisition；Storage and processing unit 4 may include noise analysis module, can carry out the spectrum analysis of noise file,
Determine target noise characteristic frequency and sound pressure level；It may also include the noise record processing unit 11 for being equipped with noise filtered Software,
Means of filtering, filter background noise are used to noise source file, but retain target noise characteristic frequency and sound pressure level；It can be by noise
Source acquisition position, noise source file, spectrum analysis curve, target noise tag file etc. are combined into Database Unit 10 and are stored into
In the host 20 of workstation computer 18；Database Unit 10 can be used noise source distribution and be divided, and be increased with good interface
Add its identifiability.High-fidelity loudspeaker and projector also can be used, noise file is played with high definition, carries out learning and communication and training
Instruction.In addition, the present invention can also equally be recorded and analyzed noise boundary exemplar, for noise comparison in the future.Wherein, noise
Database can be used for carrying out simultaneously noise with other vehicles, other factories or even other products to mark.
The present invention need to be standardized recording first, formulate the standardization process for recording noise.According to different type noise,
Selection records sound using headset 8 or acceleration transducer 9, by Experimental comparison, obtains best recording position, record
Mode and parameter setting processed, and standardized.Then it is filtered, by using professional equipment, background noise is carried out most
It filters to limits and retains feature of noise.Characteristic noise cycling of elements is characterized noise audio file 6, guarantees noise types
Effective transmitting, video recording, sound recording data file, full noise audio and characteristic noise audio are combined, can guarantee maximum limit
The realization Training and Learning of degree and communicative effect.When carrying out noise measuring study, for external audience, noise text can be directly transmitted
Part；For internal audience, semi-anechoic room 15 can be also established, effectively to completely cut off external background noises.In order to keep sound more clear
Clear visible, audible, by the use of projection device 14 and the stereo set of high-fidelity 13 and headset 17, reduction is made an uproar to the maximum extent
The audio and video feature of sound makes internal audience be easier to receive and understand, and deepens the impression.
The invention avoids lead to noise control horizontal instability due to Subjective deviation of the technical staff to noise
Problem, and cognition and stock of knowledge to noise can be quickly improved, the accuracy and efficiency of noise measuring study is improved, specifically
Include:
1. recording HD Audio, and filter background noise；
2. it is compared by noise after source noise and filtering, it can the objective and accurate type for showing noise；
3. positioning noise recording location, objective quantification frequency noise and decibel, effectively rejecting subjective factor influences；
4. the communication and comparison for carrying out noise with global factory can be realized.
Certainly, the present invention can also have other various embodiments, without deviating from the spirit and substance of the present invention, ripe
It knows those skilled in the art and makes various corresponding changes and modifications, but these corresponding changes and change in accordance with the present invention
Shape all should fall within the scope of protection of the appended claims of the present invention.
Claims (10)
1. a kind of vehicle noise measuring learning device based on database characterized by comprising
Noise gathering device selects recoding unit to record sound according to different type noise, and to recording position, recording
Mode and parameter are standardized setting, form corresponding recording file；
Storage and processing unit, connect with the noise gathering device, carry out format conversion to the recording file, are made an uproar entirely
Sound audio file is simultaneously stored, while being filtered to the recording file and format conversion, and characteristic noise sound is obtained
Frequency file is simultaneously stored；And
Noise output device connect with the storage and processing unit, restores the audio of the characteristic noise audio file and defeated
Out.
2. the vehicle noise measuring learning device based on database as described in claim 1, which is characterized in that the recording is single
First to connect with the storage and processing unit, the recoding unit is headset, vibrating sensor or acceleration transducer.
3. the vehicle noise measuring learning device based on database as claimed in claim 1 or 2, which is characterized in that described to deposit
Storage and processing unit include Database Unit and noise record processing unit, and the Database Unit stores the noise gathering dress
The recording file, full noise audio file and the characteristic noise audio file of record are set, the noise record processing is single
Member to the recording file be filtered and format conversion after obtain the characteristic noise audio file, the recoding unit
It is connect respectively with noise record processing unit with the Database Unit.
4. the vehicle noise measuring learning device based on database as claimed in claim 3, which is characterized in that the database
Unit also stores noise source acquisition position data and noise spectrum analysis curve data.
5. the vehicle noise measuring learning device based on database as claimed in claim 3, which is characterized in that further include image
Record device is connect, the corresponding ring of the recording file for recording different types noise with the storage and processing unit
Border image simultaneously forms video file.
6. the vehicle noise measuring learning device based on database as claimed in claim 5, which is characterized in that the database
Unit also stores the video file.
7. such as the vehicle noise measuring learning device described in claim 5 or 6 based on database, which is characterized in that described to make an uproar
Sound output device includes stereo set and projection device.
8. the vehicle noise measuring learning device based on database as claimed in claim 7, which is characterized in that further include partly disappearing
Tone chamber, the noise output device are arranged in the semi-anechoic room.
9. the vehicle noise measuring learning device based on database as claimed in claim 7, which is characterized in that the noise is defeated
Device further includes sound control unit and headset out, the sound control unit respectively with the storage and processing unit and described
Stereo set or headset connection.
10. the vehicle noise measuring learning device based on database as claimed in claim 3, which is characterized in that the data
Library unit is distributed according to noise source carries out classification storage to the full noise audio file and the characteristic noise audio file.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710779422.7A CN109427339B (en) | 2017-09-01 | 2017-09-01 | Whole car noise detection learning device based on database |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710779422.7A CN109427339B (en) | 2017-09-01 | 2017-09-01 | Whole car noise detection learning device based on database |
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| Publication Number | Publication Date |
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| CN109427339A true CN109427339A (en) | 2019-03-05 |
| CN109427339B CN109427339B (en) | 2023-11-17 |
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|---|---|---|---|---|
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| CN101842831A (en) * | 2007-11-02 | 2010-09-22 | K·帕尔梅斯塔 | Device for entertainment during driving of a car |
| US20160104479A1 (en) * | 2014-10-13 | 2016-04-14 | Ford Global Technologies, Llc | Acoustic impulse response simulation |
| CN105984401A (en) * | 2015-01-30 | 2016-10-05 | 李�杰 | Vehicular riding experience improving device and motor vehicle |
| WO2017047287A1 (en) * | 2015-09-18 | 2017-03-23 | 株式会社Ｊｖｃケンウッド | Driving information recording device, driving information reproducing device, control device, driving information recording method, and driving information recording program |
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2017
- 2017-09-01 CN CN201710779422.7A patent/CN109427339B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02226999A (en) * | 1989-02-28 | 1990-09-10 | Nissan Motor Co Ltd | Evaluation equipment for acoustic characteristic in cabin |
| DE4427912A1 (en) * | 1994-08-06 | 1996-02-08 | Opel Adam Ag | Adapting audio playback appts. output signals to noise level inside vehicle |
| US20060074645A1 (en) * | 2004-09-15 | 2006-04-06 | Bellsouth Intellectual Property Corporation | System and methods for vehicle sound font creation, playback, and networking |
| JP2007110481A (en) * | 2005-10-14 | 2007-04-26 | Fujitsu Ten Ltd | Audio controller and correcting device |
| CN101842831A (en) * | 2007-11-02 | 2010-09-22 | K·帕尔梅斯塔 | Device for entertainment during driving of a car |
| EP2112644A1 (en) * | 2008-04-25 | 2009-10-28 | POLO EXPRESSVERSAND Gesellschaft für Motorradbekleidung und Sportswear mbH | Motorcycle sound simulation system |
| US20160104479A1 (en) * | 2014-10-13 | 2016-04-14 | Ford Global Technologies, Llc | Acoustic impulse response simulation |
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