WO2001033543A1 - Procedes d'elaboration et d'utilisation d'une sonotheque representant les caracteristiques acoustiques de moteur de vehicule automobile, dispositifs pour mise en oeuvre - Google Patents
Procedes d'elaboration et d'utilisation d'une sonotheque representant les caracteristiques acoustiques de moteur de vehicule automobile, dispositifs pour mise en oeuvre Download PDFInfo
- Publication number
- WO2001033543A1 WO2001033543A1 PCT/FR1999/002670 FR9902670W WO0133543A1 WO 2001033543 A1 WO2001033543 A1 WO 2001033543A1 FR 9902670 W FR9902670 W FR 9902670W WO 0133543 A1 WO0133543 A1 WO 0133543A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- block
- curve
- engine
- sound
- frequency
- Prior art date
Links
Classifications
-
- 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
- G10K15/00—Acoustics not otherwise provided for
- G10K15/02—Synthesis of acoustic waves
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
- G10H1/00—Details of electrophonic musical instruments
- G10H1/18—Selecting circuits
- G10H1/26—Selecting circuits for automatically producing a series of tones
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
- G10H7/00—Instruments in which the tones are synthesised from a data store, e.g. computer organs
- G10H7/08—Instruments in which the tones are synthesised from a data store, e.g. computer organs by calculating functions or polynomial approximations to evaluate amplitudes at successive sample points of a tone waveform
- G10H7/10—Instruments in which the tones are synthesised from a data store, e.g. computer organs by calculating functions or polynomial approximations to evaluate amplitudes at successive sample points of a tone waveform using coefficients or parameters stored in a memory, e.g. Fourier coefficients
- G10H7/105—Instruments in which the tones are synthesised from a data store, e.g. computer organs by calculating functions or polynomial approximations to evaluate amplitudes at successive sample points of a tone waveform using coefficients or parameters stored in a memory, e.g. Fourier coefficients using Fourier coefficients
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
- G10H2250/00—Aspects of algorithms or signal processing methods without intrinsic musical character, yet specifically adapted for or used in electrophonic musical processing
- G10H2250/055—Filters for musical processing or musical effects; Filter responses, filter architecture, filter coefficients or control parameters therefor
- G10H2250/111—Impulse response, i.e. filters defined or specifed by their temporal impulse response features, e.g. for echo or reverberation applications
- G10H2250/115—FIR impulse, e.g. for echoes or room acoustics, the shape of the impulse response is specified in particular according to delay times
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
- G10H2250/00—Aspects of algorithms or signal processing methods without intrinsic musical character, yet specifically adapted for or used in electrophonic musical processing
- G10H2250/131—Mathematical functions for musical analysis, processing, synthesis or composition
- G10H2250/215—Transforms, i.e. mathematical transforms into domains appropriate for musical signal processing, coding or compression
- G10H2250/235—Fourier transform; Discrete Fourier Transform [DFT]; Fast Fourier Transform [FFT]
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
- G10H2250/00—Aspects of algorithms or signal processing methods without intrinsic musical character, yet specifically adapted for or used in electrophonic musical processing
- G10H2250/315—Sound category-dependent sound synthesis processes [Gensound] for musical use; Sound category-specific synthesis-controlling parameters or control means therefor
- G10H2250/371—Gensound equipment, i.e. synthesizing sounds produced by man-made devices, e.g. machines
- G10H2250/381—Road, i.e. sounds which are part of a road, street or urban traffic soundscape, e.g. automobiles, bikes, trucks, traffic, vehicle horns, collisions
Definitions
- the invention relates to a method of developing a sound library representing sequences of motor vehicle engine sounds as well as a method of implementing such a sound library. It has applications in the simulation of the sounds of an engine in an automobile. Devices for implementation are also claimed.
- the object of the invention is to simulate inside a motor vehicle the sound of an engine of another type of vehicle and preferably of a renowned or original vehicle.
- the driver on board his vehicle will have the impression of being inside a Ferrari® or any other type of vehicle that may interest him.
- the simulation is carried out according to the actual operating state of the engine.
- the invention therefore relates to a method of developing a sound library representing the acoustic characteristics of recorded sound sequences of motor vehicle engines.
- the sound sequences are recorded then transformed and stored in the form of digital and synthetic data according to the following steps:
- a windowing of the block can possibly be carried out before; - decomposition of the Fourier transform of the block into a first frequency peak curve and a second residual noise curve;
- the first frequency peak curve is smoothed by making a moving average
- the operating condition of the engine is evaluated by one or more of the following parameters:
- each synthesized block is at least associated with the speed of rotation R of the motor, - each synthesized block is at least associated with the position C of the accelerator pedal.
- the invention also relates to a method of implementing a sound library according to any one of the preceding characteristics taken in isolation or in combination for simulating the sound of an engine in a motor vehicle.
- a first temporal evolution is reconstituted from all the Nf frequency values F and the corresponding Na amplitude values of said selected block;
- Nf of frequency values F of a block is chosen between 8 and 32 and is preferably 15;
- the frequencies F chosen from a block correspond to the first Nf maximum frequency
- the frequencies F chosen from a block correspond to the Nf frequency points of the Fourier transform of energies situated above the second residual noise curve.
- the present invention finally relates to devices for implementing the above methods.
- Figure 1 corresponds to a device for the implementation of a sound library.
- Figure 2 shows a functional implementation diagram
- Figure 3 shows a block breakdown of a sequence of sounds.
- Figure 4 represents a spectral energy curve of a block.
- Figure 1 shows schematically a device
- the device comprises a controller 4, a microprocessor or a digital signal processor (DSP) connected by addressing and data buses 5 to read only memory 6 for storage of the
- the load C engine 2 can be evaluated by the position of the accelerator and the speed R engine 1 can be evaluated by the speed of rotation of said motor.
- the 20 correspondents are sent to the controller 4 via a signal shaping module 3.
- the engine R speed 1 and the engine load C 2 are evaluated regularly over time and determine the selection of a block from the blocks obtained by cutting out the
- the resolution of the converters can be chosen between 8 and 24 bits. Preferably 16 bits are used.
- the acquisition frequency is
- the acquisition frequency is lower and, for example, up to 8000 Hz depending also on the level of quality required, the computing power and / or the memory capacity.
- a stereophonic device or not is envisaged.
- the amplifier 9 can be omitted, the output of the digital-analog converter being connected to an existing sound device of the motor vehicle and for example to a car radio.
- the measurement of the load C motor 2 can be omitted, only the speed R motor 1 being measured or vice versa.
- Figure 2 is the block diagram of part of the operating program of the device shown in Figure 1.
- Each of these values F and A, coefficients Cf and amplitude Ab is associated with an operating state of the engine.
- the values of frequency, amplitude, filter coefficients and amplitude of white noise will be referenced according to the corresponding values of R and of C.
- the frequency and amplitude values selected in the configuration table 1 1 as a function of R and of C are sent in a module 12 of additive synthesis making it possible to obtain in the time domain a first temporal evolution.
- the filter coefficients Cf selected as a function of R and of C determine the characteristics of the filter through which a white noise 13, a random value weighted by the amplitude Ab is sent. These operations are carried out in a filter module 14 F. I. A. (Finite Impulse Response).
- the filtering result is added to the first variation time in an analog adder 15 in order to produce the simulated sound.
- the sampling is done in a manner compatible with that used for the creation of the configuration table, either identically or differently with decimation or extrapolation depending on the case. However, the same sampling frequency Fe is preferably used during creation and during restitution / simulation.
- Figure 3 shows the block division of a sequence of sounds in the time domain.
- Figure 4 represents the energy spectrum of a block by Fourier transform.
- FFT fast Fourier transform
- the smoothed residual noise smoothed background noise
- the smoothed residual noise is used to determine the filter coefficients and the amplitude of the corresponding white noise Ab.
- the restitution is preferably carried out by using a temporary storage memory area (buffer or "buffer") of the first in, first out and / or type. by using a double buffer system so that the calculations can be done during the sound reproduction by the digital to analog converter without the latter having to wait for data and therefore without risk of interruption of the reproduction.
- a temporary storage memory area buffer or "buffer”
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Mathematical Physics (AREA)
- General Health & Medical Sciences (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Health & Medical Sciences (AREA)
- Algebra (AREA)
- General Physics & Mathematics (AREA)
- Mathematical Analysis (AREA)
- Mathematical Optimization (AREA)
- Pure & Applied Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/FR1999/002670 WO2001033543A1 (fr) | 1999-11-02 | 1999-11-02 | Procedes d'elaboration et d'utilisation d'une sonotheque representant les caracteristiques acoustiques de moteur de vehicule automobile, dispositifs pour mise en oeuvre |
AU63493/99A AU6349399A (en) | 1999-11-02 | 1999-11-02 | Methods for producing and using a sound effects library representing the sound characteristics of a motor vehicle, devices therefor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/FR1999/002670 WO2001033543A1 (fr) | 1999-11-02 | 1999-11-02 | Procedes d'elaboration et d'utilisation d'une sonotheque representant les caracteristiques acoustiques de moteur de vehicule automobile, dispositifs pour mise en oeuvre |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2001033543A1 true WO2001033543A1 (fr) | 2001-05-10 |
Family
ID=9542800
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR1999/002670 WO2001033543A1 (fr) | 1999-11-02 | 1999-11-02 | Procedes d'elaboration et d'utilisation d'une sonotheque representant les caracteristiques acoustiques de moteur de vehicule automobile, dispositifs pour mise en oeuvre |
Country Status (2)
Country | Link |
---|---|
AU (1) | AU6349399A (fr) |
WO (1) | WO2001033543A1 (fr) |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1403850A1 (fr) * | 2002-09-26 | 2004-03-31 | Virtuel 10 | Procédés d'élaboration et de restitution d'une sonothèque représentant des caractéristiques acoustiques de véhicule automobile, dispositif pour mise en oeuvre |
FR2858710A1 (fr) * | 2003-08-08 | 2005-02-11 | Bernard Hadoux | Dispositif emettant des sons de moteur et de pot d'echappement de vehicules a moteur |
FR2865607A1 (fr) * | 2004-01-26 | 2005-07-29 | Marmonier | Procede dynamique d'enregistrement de l'effet d'un module d'aile sur les remontees de bruit de roulement dans l'habitacle d'un vehicule. |
EP1912178A2 (fr) * | 2006-10-13 | 2008-04-16 | Yamaha Corporation | Dispositif de conversion de données |
FR2946786A1 (fr) * | 2009-06-16 | 2010-12-17 | Peugeot Citroen Automobiles Sa | Procede de synthese d'une ambiance sonore au niveau d'un vehicule |
FR2974442A1 (fr) * | 2011-04-21 | 2012-10-26 | Ct Scient Tech Batiment Cstb | Procede d'analyse et de synthese de bruit de moteur, son utilisation et systeme associe |
US8384528B2 (en) | 2006-01-23 | 2013-02-26 | Ford Global Technologies | Method and apparatus for selectively varying motor vehicle sounds |
EP2685448A1 (fr) * | 2012-07-12 | 2014-01-15 | Harman Becker Automotive Systems GmbH | Synthèse de son moteur |
WO2014113185A1 (fr) * | 2013-01-18 | 2014-07-24 | Bose Corporation | Extraction et reproduction de son de moteur de véhicule |
WO2014127773A3 (fr) * | 2013-02-22 | 2014-10-16 | Schaeffler Technologies Gmbh & Co. Kg | Signal audio pour un bruit de synthèse d'un véhicule à moteur et procédé pour le produire |
FR3004555A1 (fr) * | 2013-04-12 | 2014-10-17 | Fillony Ltd | Dispositif d'appoint pour vehicule motorise |
US20150003618A1 (en) * | 2013-01-18 | 2015-01-01 | Bose Corporation | Vehicle engine sound extraction |
Citations (6)
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GB1565470A (en) * | 1977-01-12 | 1980-04-23 | Atari Inc | Apparatus for producing a plurality of audio sound effects |
US4270430A (en) * | 1979-11-19 | 1981-06-02 | Kawai Musical Instrument Mfg. Co., Ltd. | Noise generator for a polyphonic tone synthesizer |
EP0563929A2 (fr) * | 1992-04-03 | 1993-10-06 | Yamaha Corporation | Méthode pour commander la position d'une image et d'une source de son |
WO1997015915A1 (fr) * | 1995-10-23 | 1997-05-01 | The Regents Of The University Of California | Synthese audio par transformation inverse bande etroite/bande large |
US5633985A (en) * | 1990-09-26 | 1997-05-27 | Severson; Frederick E. | Method of generating continuous non-looped sound effects |
WO1999016049A1 (fr) * | 1997-09-23 | 1999-04-01 | Kent Ridge Digital Labs (Krdl), National University Of Singapore | Systeme de bruitage interactif et bruitage a partir d'un modele |
-
1999
- 1999-11-02 WO PCT/FR1999/002670 patent/WO2001033543A1/fr active Application Filing
- 1999-11-02 AU AU63493/99A patent/AU6349399A/en not_active Abandoned
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1565470A (en) * | 1977-01-12 | 1980-04-23 | Atari Inc | Apparatus for producing a plurality of audio sound effects |
US4270430A (en) * | 1979-11-19 | 1981-06-02 | Kawai Musical Instrument Mfg. Co., Ltd. | Noise generator for a polyphonic tone synthesizer |
US5633985A (en) * | 1990-09-26 | 1997-05-27 | Severson; Frederick E. | Method of generating continuous non-looped sound effects |
EP0563929A2 (fr) * | 1992-04-03 | 1993-10-06 | Yamaha Corporation | Méthode pour commander la position d'une image et d'une source de son |
WO1997015915A1 (fr) * | 1995-10-23 | 1997-05-01 | The Regents Of The University Of California | Synthese audio par transformation inverse bande etroite/bande large |
WO1999016049A1 (fr) * | 1997-09-23 | 1999-04-01 | Kent Ridge Digital Labs (Krdl), National University Of Singapore | Systeme de bruitage interactif et bruitage a partir d'un modele |
Cited By (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1403850A1 (fr) * | 2002-09-26 | 2004-03-31 | Virtuel 10 | Procédés d'élaboration et de restitution d'une sonothèque représentant des caractéristiques acoustiques de véhicule automobile, dispositif pour mise en oeuvre |
FR2845195A1 (fr) * | 2002-09-26 | 2004-04-02 | Virtuel 10 | Procede d'elaboration et de restitution d'une sonotheque representant des caracteristiques acoustiques de vehicule automobile, dispositif pour mise en oeuvre |
FR2858710A1 (fr) * | 2003-08-08 | 2005-02-11 | Bernard Hadoux | Dispositif emettant des sons de moteur et de pot d'echappement de vehicules a moteur |
FR2865607A1 (fr) * | 2004-01-26 | 2005-07-29 | Marmonier | Procede dynamique d'enregistrement de l'effet d'un module d'aile sur les remontees de bruit de roulement dans l'habitacle d'un vehicule. |
US8384528B2 (en) | 2006-01-23 | 2013-02-26 | Ford Global Technologies | Method and apparatus for selectively varying motor vehicle sounds |
EP1912178A2 (fr) * | 2006-10-13 | 2008-04-16 | Yamaha Corporation | Dispositif de conversion de données |
EP1912178A3 (fr) * | 2006-10-13 | 2009-11-04 | Yamaha Corporation | Dispositif de conversion de données |
FR2946786A1 (fr) * | 2009-06-16 | 2010-12-17 | Peugeot Citroen Automobiles Sa | Procede de synthese d'une ambiance sonore au niveau d'un vehicule |
WO2010146275A3 (fr) * | 2009-06-16 | 2011-09-09 | Peugeot Citroën Automobiles SA | Procede de synthese d'une ambiance sonore au niveau d'un vehicule |
FR2974442A1 (fr) * | 2011-04-21 | 2012-10-26 | Ct Scient Tech Batiment Cstb | Procede d'analyse et de synthese de bruit de moteur, son utilisation et systeme associe |
WO2012143659A1 (fr) * | 2011-04-21 | 2012-10-26 | C.S.T.B Centre Scientifique Et Technique Du Batiment | Procede d'analyse et de synthese de bruit de moteur, son utilisation et systeme associe |
CN103544949A (zh) * | 2012-07-12 | 2014-01-29 | 哈曼贝克自动***股份有限公司 | 发动机声音合成 |
EP2685448A1 (fr) * | 2012-07-12 | 2014-01-15 | Harman Becker Automotive Systems GmbH | Synthèse de son moteur |
CN103544949B (zh) * | 2012-07-12 | 2018-10-09 | 哈曼贝克自动***股份有限公司 | 发动机声音合成 |
US9553553B2 (en) | 2012-07-12 | 2017-01-24 | Harman Becker Automotive Systems Gmbh | Engine sound synthesis system |
US9031248B2 (en) | 2013-01-18 | 2015-05-12 | Bose Corporation | Vehicle engine sound extraction and reproduction |
US20150003618A1 (en) * | 2013-01-18 | 2015-01-01 | Bose Corporation | Vehicle engine sound extraction |
CN104937659A (zh) * | 2013-01-18 | 2015-09-23 | 伯斯有限公司 | 车辆引擎声音提取以及再现 |
US9959852B2 (en) | 2013-01-18 | 2018-05-01 | Bose Corporation | Vehicle engine sound extraction |
WO2014113185A1 (fr) * | 2013-01-18 | 2014-07-24 | Bose Corporation | Extraction et reproduction de son de moteur de véhicule |
CN105190742A (zh) * | 2013-02-22 | 2015-12-23 | 舍弗勒技术股份两合公司 | 机动车合成噪音的音频信号及其生成方法 |
WO2014127773A3 (fr) * | 2013-02-22 | 2014-10-16 | Schaeffler Technologies Gmbh & Co. Kg | Signal audio pour un bruit de synthèse d'un véhicule à moteur et procédé pour le produire |
US9656604B2 (en) | 2013-02-22 | 2017-05-23 | Schaeffler Technologies AG & Co. KG | Audio signal for a synthetic noise of a motor vehicle as well as method for generating said audio signal |
EP2793226A3 (fr) * | 2013-04-12 | 2015-01-07 | Fillony Limited | Dispositif d'appoint pour véhicule motorisé |
FR3004555A1 (fr) * | 2013-04-12 | 2014-10-17 | Fillony Ltd | Dispositif d'appoint pour vehicule motorise |
Also Published As
Publication number | Publication date |
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AU6349399A (en) | 2001-05-14 |
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