EP1658755A1 - Systeme de spatialisation de sources sonores - Google Patents
Systeme de spatialisation de sources sonoresInfo
- Publication number
- EP1658755A1 EP1658755A1 EP03748189A EP03748189A EP1658755A1 EP 1658755 A1 EP1658755 A1 EP 1658755A1 EP 03748189 A EP03748189 A EP 03748189A EP 03748189 A EP03748189 A EP 03748189A EP 1658755 A1 EP1658755 A1 EP 1658755A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sound
- module
- spatialization
- source
- transfer functions
- 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
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMS
- H04S1/00—Two-channel systems
- H04S1/007—Two-channel systems in which the audio signals are in digital form
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMS
- H04S7/00—Indicating arrangements; Control arrangements, e.g. balance control
- H04S7/30—Control circuits for electronic adaptation of the sound field
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMS
- H04S7/00—Indicating arrangements; Control arrangements, e.g. balance control
- H04S7/30—Control circuits for electronic adaptation of the sound field
- H04S7/302—Electronic adaptation of stereophonic sound system to listener position or orientation
- H04S7/303—Tracking of listener position or orientation
- H04S7/304—For headphones
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMS
- H04S2400/00—Details of stereophonic systems covered by H04S but not provided for in its groups
- H04S2400/11—Positioning of individual sound objects, e.g. moving airplane, within a sound field
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMS
- H04S2420/00—Techniques used stereophonic systems covered by H04S but not provided for in its groups
- H04S2420/01—Enhancing the perception of the sound image or of the spatial distribution using head related transfer functions [HRTF's] or equivalents thereof, e.g. interaural time difference [ITD] or interaural level difference [ILD]
Definitions
- the present invention relates to a spatialization system of sound sources with improved performance allowing in particular the production of a spatialization system compatible with modular avionic data processing equipment of IMA type (abbreviation of the English expression “Integrated Modular Avionics ”) also called EMTI (for Modular Information Processing Equipment).
- IMA modular avionic data processing equipment
- EMTI Modular Information Processing Equipment
- 3D sound is in the same approach as the helmet visual by allowing pilots to acquire information of spatial situation (position of team members, threats, ...) in its own reference point, by a different communication channel than visual following a natural modality.
- 3D sound enriches the transmitted signal with situation information, static or dynamic, in space. Its use, in addition to locating teammates or threats, can cover other applications such as multi-speaker intelligibility.
- the system described in the above-mentioned request includes in particular for each source to be spatialized, a binaural processor with two convolutional channels whose role is on the one hand to calculate by interpolation the head transfer functions (left / right) at the point in which the sound source will be placed, on the other hand to create the spatialized signal on two channels from the original monophonic signal.
- the aim of the present invention is to define a spatialization system with improved performance such that it is able to be integrated into an avionics modular information processing equipment (EMTI) which imposes constraints in particular on the number of processors and their type.
- EMTI avionics modular information processing equipment
- the invention proposes a spatialization system in which it is no longer necessary to make an interpolation calculation of the head transfer functions. It is then possible to carry out the convolution operations in order to create the spatialized signals to have only one single computer instead of the n binaural processors necessary in the system according to the prior art for spatializing n sources.
- the invention relates to a spatialization system of at least one sound source creating for each source two spatialized monophonic channels intended to be received by a listener, comprising
- a filter database comprising a set of head transfer functions specific to the auditor
- a data presentation processor receiving the information from each source and comprising in particular a module for calculating the relative positions of the sources with respect to the listener,
- said data presentation processor comprises a module selection of head transfer functions with variable resolution adapted to the relative position of the source with the listener.
- pilot head transfer function bases adapted to the precision required for a given piece of information to be spatialized (threat, position of a drone, etc.), combined with optimal use of the spatial information contained in each of the positions of these bases makes it possible to considerably reduce the number of operations to be carried out for spatialization without degrading performance.
- FIG. 1 a general diagram of a spatialization system according to the invention
- FIG. 2 a block diagram of an exemplary embodiment of the system according to the invention
- FIG. 4 a layout diagram of the system according to the invention in a modular avionics type equipment
- IMA IMA.
- the invention is described below with reference to an aircraft audio system, in particular a combat aircraft, but it is understood that it is not limited to such an application and that it can be implemented. used in other types of vehicles (land or sea) as well as in fixed installations.
- the user of this system is, in this case, the pilot of an airplane but there can be several users simultaneously, in particular if it is a civil transport airplane, devices specific to each user. then being provided in sufficient number.
- FIG. 1 represents a general diagram of a spatialization system of sound sources according to the invention, the role of which is to make a listener hear sound signals (tones, words, alarms, etc.) using a stereophonic headphones so that they are perceived by the listener as if they came from a particular point in space, this point being able to be the effective position of the sound source or an arbitrary position.
- sound signals tones, words, alarms, etc.
- FIG. 1 represents a general diagram of a spatialization system of sound sources according to the invention, the role of which is to make a listener hear sound signals (tones, words, alarms, etc.) using a stereophonic headphones so that they are perceived by the listener as if they came from a particular point in space, this point being able to be the effective position of the sound source or an arbitrary position.
- the detection of a missile by a countermeasure device may generate a sound the origin of which seems to come from the origin of the attack, allowing the pilot to react more quickly.
- the system according to the invention mainly comprises a processor CPU1 for presenting data and a calculation unit CPU2 generating the monophonic spatialized channels.
- the data presentation processor CPU1 notably comprises a module 101 for calculating the relative positions of the sources with respect to the listener, that is to say in the listener's head reference. These positions are for example calculated from information received by an attitude detector 11 from the listener's head and by a module 12 for determining the position of the source to be restored (this module can include an inertial unit, a tracking device such as a goniometer, a radar, etc.).
- the processor CPU1 is connected to a “filter” database 13 comprising a set of head transfer functions (HRTF) specific to the listener.
- HRTF head transfer functions
- the head transfer functions are for example acquired during an earlier learning phase. They are specific to the inter-aural delay of the listener (delay in the arrival of sound between the two ears), of the physiognomic characteristics of each listener. It is these transfer functions that give the listener the feeling of spatialization.
- the computing unit CPU2 generates the monophonic channels G and D spatialized by convolution of each monophonic sound signal characteristic of the source to be spatialized and contained in the “sounds” database 14 with head transfer functions from said database 13 estimated at the position of the source in the head reference.
- the calculation unit comprises as many processors as there are sound sources to be spatialized. Indeed, it is necessary in these systems to carry out a spatial interpolation of the head transfer functions in order to know the transfer functions at the point at which the source will be placed.
- This architecture requires multiplying the number of processors in the computing unit, which is incompatible with a modular spatialization system for integration into modular avionics information processing equipment.
- the spatialization system according to the invention has a specific algorithmic architecture which makes it possible in particular to reduce the number of processors of the computing unit.
- the applicant has shown that the computing unit CPU2 can then be produced by means of a programmable component of the EPLD type (abbreviation of “Programmable electronics by logic gates”).
- the data presentation processor of the system according to the invention comprises a module 102 for selecting head transfer functions with a variable resolution adapted to the relative position of the source with the listener (or position of the source in the head reference). Thanks to this selection module, it is no longer necessary to carry out interpolation calculations to estimate the transfer functions at the location where the sound source must be located. It is therefore possible to considerably simplify the architecture of the calculation unit, an exemplary embodiment of which will be described later.
- the selection module operating a selection of the resolution of the transfer functions as a function of the relative position of the sound source with respect to the listener, it is possible to work with a database 13 of the head transfer functions comprising a large number of functions distributed regularly throughout the space, knowing that only a part of these will be selected to perform the convolution calculations.
- the applicant worked with a database in which the transfer functions are collected with a step of 7 ° in azimuth, from 0 to 360 °, and with a step of 10 ° in elevation, from -70 ° to + 90 °.
- the applicant has shown that, thanks to the resolution selection module 102 of the system according to the invention, it is possible to limit the number of coefficients of each head transfer function used to 40 (compared to 128 or 256 in most systems of the prior art) without degrading the sound spatialization results, which further reduces the computing power necessary for the spatialization function.
- the calculation unit CPU2 can thus be reduced to a component of the EPLD type for example, even when several sources have to be spatialized, which makes it possible to dispense with the protocols of dialogue between the different binaural processors necessary for processing the spatialization of several sound sources in prior art systems.
- FIG. 2 represents a functional diagram of an exemplary embodiment of the system according to the invention.
- the spatialization system comprises a data presentation processor CPU1 receiving the information from each source and a calculation unit CPU2 of the spatialized right and left monophonic channels.
- the processor CPU1 notably comprises the module 101 for calculating the relative position of a sound source in the listener's head reference frame, this module receiving in real time information on the head attitude (listener position) and on the position of the source to be restored, as described above.
- the module 102 for selecting in resolution the HRTF transfer functions contained in the database 13 makes it possible to select, for each source to be spatialized, as a function of the relative position of the source, the transfer functions which will be used for the generation of spatialized sounds.
- a sound selection module 103 connected to the sound database 14 makes it possible to select the monophonic signal from the database which will be sent to the computing unit CPU2 to be convoluted to the functions adapted left and right head transfer.
- the sound selection module 103 operates a hierarchy between the sound sources to be spatialized. Depending on system events and the choice of platform management logic, a choice of concomitant sounds to be spatialized will be made. All of the information used to define this spatial presentation priority logic travels on the EMTI broadband bus.
- the sound selection module 103 is for example connected to a configuration and parameterization 104 in which personalization criteria specific to the auditor are recorded.
- the data concerning the choice of the HRTF transfer functions as well as the sounds to be spatialized are sent to the computing unit CPU2 by means of a communication link 15. They are temporarily stored in a filtering memory and digital sounds 201.
- the part of the memory containing the digital sounds called "earcons" (name assigned to the sounds used as alarms or alerts and having a strong significant value) is for example loaded at initialization. It contains the samples of audio signals previously digitized in the sound database 14.
- the spatialization of one or more of these signals will be activated or suspended. As long as the activation persists, the signal concerned is read in a loop.
- the convolution calculations are performed by a computer 202, for example a component of the EPLD type which generates the spatialized sounds as has been described previously.
- a processor interface 203 constitutes a memory used for the filtering operations. It is composed of buffer registers for sounds, HRTF filters, as well as coefficients used for other functions such as soft switching and the simulation of atmospheric absorption which will be described later.
- earcons or audible alarms
- radios directly UHF / VHF
- FIG. 3 represents the diagram of a calculation unit of a spatialization system according to the example of FIG. 2.
- the spatialization system comprises an audio input / output conditioning module 16 which recovers the monophonic left and right spatialized channels at the output in order to format them before sending them to the listener.
- audio input / output conditioning module 16 which recovers the monophonic left and right spatialized channels at the output in order to format them before sending them to the listener.
- live communications if “live” communications must be spatialized, these communications are shaped by the conditioning module with a view to their spatialization by the computer 202 of the computing unit.
- live source By default, a sound coming from a so-called live source will always have priority over the sounds to be spatialized.
- the processor interface 203 which constitutes a short term memory for all the parameters used.
- the computer 202 constitutes the heart of the calculation unit. In the example in FIG. 3, it includes a module 204 for activating and selecting sources, performing the mixing function between the live inputs and the earcons type sounds.
- the computer 202 can perform the calculation functions for the n sources to be spatialized.
- the n sources In the example in Figure 3, four sound sources can be spatialized.
- It includes a double spatialization module 205, which receives the adapted transfer functions and performs the convolution with the monophonic signal to be spatialized. This convolution is carried out in time space by using the shifting capacities of the FIR filters (finite impulse response filters) associated with the inter-aural delays.
- FIR filters finite impulse response filters
- the soft switching module includes a soft switching module 206, connected to a calculation parametering register 207 optimizing the choice of transition parameters as a function of the speed of movement of the source and of the listener's head.
- the soft switching module allows a transition, without audible switching noise, when switching from one pair of filters to the next.
- This function is performed by double linear weighting ramp. It involves a double convolution: each sample of each output channel results from the weighted sum of two samples, each being obtained by convolution of the input signal with a spatialization filter, element of the HRTF base. At a given instant, there are therefore in input memory two pairs of spatialization filters per channel to be processed.
- a module 208 for simulating atmospheric absorption includes a module 208 for simulating atmospheric absorption.
- This function is for example performed by a linear filtering with 30 coefficients and a gain, realized on each channel (left, right) of each channel, after spatialization processing. This function allows the auditor to perceive the depth effect necessary for his operational decision.
- dynamic weighting modules 209 and summation 210 are provided for performing the weighted sum of the channels of each channel to provide a single stereophonic signal compatible with the output dynamics. The only constraint associated with this stereophonic reproduction is linked to the bandwidth necessary for sound spatialization (typically 20 kHz).
- FIG. 4 diagrams the hardware architecture of an avionics modular equipment 40 for processing information of the EMTI type. It includes a broadband bus 41 to which all the equipment functions are connected, including in particular the sound spatialization system according to the invention 42 as described above, the other man machine interface functions 43 such as by example voice control, head-up symbology management, helmet display, etc., and a system management card 44 which functions as an interface with the other equipment of the aircraft.
- the sound spatialization system 42 according to the invention is connected to the high speed bus via the data presentation processor CPUL II also comprises the calculation unit CPU2, as described above and formed for example of a component EPLD, compatible with the technical requirements of EMTI (number and type of operations, memory space, coding of audio samples, digital bit rate).
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Stereophonic System (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
- Holo Graphy (AREA)
- Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0208265A FR2842064B1 (fr) | 2002-07-02 | 2002-07-02 | Systeme de spatialisation de sources sonores a performances ameliorees |
PCT/FR2003/001998 WO2004006624A1 (fr) | 2002-07-02 | 2003-06-27 | Systeme de spatialisation de sources sonores |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1658755A1 true EP1658755A1 (fr) | 2006-05-24 |
EP1658755B1 EP1658755B1 (fr) | 2008-03-19 |
Family
ID=29725087
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP03748189A Expired - Lifetime EP1658755B1 (fr) | 2002-07-02 | 2003-06-27 | Systeme de spatialisation de sources sonores |
Country Status (10)
Country | Link |
---|---|
US (1) | US20050271212A1 (fr) |
EP (1) | EP1658755B1 (fr) |
AT (1) | ATE390029T1 (fr) |
AU (1) | AU2003267499C1 (fr) |
CA (1) | CA2490501A1 (fr) |
DE (1) | DE60319886T2 (fr) |
ES (1) | ES2302936T3 (fr) |
FR (1) | FR2842064B1 (fr) |
IL (1) | IL165911A (fr) |
WO (1) | WO2004006624A1 (fr) |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2865096B1 (fr) * | 2004-01-13 | 2007-12-28 | Cabasse | Systeme acoustique pour vehicule et dispositif correspondant |
JP2006180467A (ja) * | 2004-11-24 | 2006-07-06 | Matsushita Electric Ind Co Ltd | 音像定位装置 |
EP1855474A1 (fr) * | 2006-05-12 | 2007-11-14 | Sony Deutschland Gmbh | Méthode pour générer une image interpolée entre deux images d'une séquence d'images |
DE102006027673A1 (de) | 2006-06-14 | 2007-12-20 | Friedrich-Alexander-Universität Erlangen-Nürnberg | Signaltrenner, Verfahren zum Bestimmen von Ausgangssignalen basierend auf Mikrophonsignalen und Computerprogramm |
US9031242B2 (en) | 2007-11-06 | 2015-05-12 | Starkey Laboratories, Inc. | Simulated surround sound hearing aid fitting system |
CN101978424B (zh) * | 2008-03-20 | 2012-09-05 | 弗劳恩霍夫应用研究促进协会 | 扫描环境的设备、声学显示的设备和方法 |
FR2938396A1 (fr) * | 2008-11-07 | 2010-05-14 | Thales Sa | Procede et systeme de spatialisation du son par mouvement dynamique de la source |
US9264812B2 (en) | 2012-06-15 | 2016-02-16 | Kabushiki Kaisha Toshiba | Apparatus and method for localizing a sound image, and a non-transitory computer readable medium |
GB2544458B (en) | 2015-10-08 | 2019-10-02 | Facebook Inc | Binaural synthesis |
GB2574946B (en) * | 2015-10-08 | 2020-04-22 | Facebook Inc | Binaural synthesis |
US11256768B2 (en) | 2016-08-01 | 2022-02-22 | Facebook, Inc. | Systems and methods to manage media content items |
WO2018084770A1 (fr) * | 2016-11-04 | 2018-05-11 | Dirac Research Ab | Procédés et systèmes pour déterminer et/ou utiliser un filtre audio sur la base de données de suivi de tête |
US10394929B2 (en) * | 2016-12-20 | 2019-08-27 | Mediatek, Inc. | Adaptive execution engine for convolution computing systems |
DE112019005822T5 (de) * | 2018-11-21 | 2021-09-09 | Google Llc | Vorrichtung und verfahren zur bereitstellung einer situationserkennung unter verwendung von positionssensoren und virtueller akustischer modellierung |
CN115715470A (zh) | 2019-12-30 | 2023-02-24 | 卡姆希尔公司 | 用于提供空间化声场的方法 |
FR3110762B1 (fr) | 2020-05-20 | 2022-06-24 | Thales Sa | Dispositif de personnalisation d'un signal audio généré automatiquement par au moins un équipement matériel avionique d'un aéronef |
KR20230157331A (ko) * | 2021-03-16 | 2023-11-16 | 파나소닉 인텔렉츄얼 프로퍼티 코포레이션 오브 아메리카 | 정보 처리 방법, 정보 처리 장치, 및, 프로그램 |
EP4325896A1 (fr) * | 2021-04-12 | 2024-02-21 | Panasonic Intellectual Property Corporation of America | Procédé de traitement d'informations, dispositif de traitement d'informations et programme |
Family Cites Families (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4583075A (en) * | 1980-11-07 | 1986-04-15 | Fairchild Camera And Instrument Corporation | Method and apparatus for analyzing an analog-to-digital converter with a nonideal digital-to-analog converter |
US4817149A (en) * | 1987-01-22 | 1989-03-28 | American Natural Sound Company | Three-dimensional auditory display apparatus and method utilizing enhanced bionic emulation of human binaural sound localization |
US5645074A (en) * | 1994-08-17 | 1997-07-08 | Decibel Instruments, Inc. | Intracanal prosthesis for hearing evaluation |
US6043676A (en) * | 1994-11-04 | 2000-03-28 | Altera Corporation | Wide exclusive or and wide-input and for PLDS |
JP3258195B2 (ja) * | 1995-03-27 | 2002-02-18 | シャープ株式会社 | 音像定位制御装置 |
US5742689A (en) * | 1996-01-04 | 1998-04-21 | Virtual Listening Systems, Inc. | Method and device for processing a multichannel signal for use with a headphone |
FR2744320B1 (fr) * | 1996-01-26 | 1998-03-06 | Sextant Avionique | Systeme de prise de son et d'ecoute pour equipement de tete en ambiance bruitee |
FR2744277B1 (fr) * | 1996-01-26 | 1998-03-06 | Sextant Avionique | Procede de reconnaissance vocale en ambiance bruitee, et dispositif de mise en oeuvre |
FR2744871B1 (fr) * | 1996-02-13 | 1998-03-06 | Sextant Avionique | Systeme de spatialisation sonore, et procede de personnalisation pour sa mise en oeuvre |
KR0175515B1 (ko) * | 1996-04-15 | 1999-04-01 | 김광호 | 테이블 조사 방식의 스테레오 구현 장치와 방법 |
JP3976360B2 (ja) * | 1996-08-29 | 2007-09-19 | 富士通株式会社 | 立体音響処理装置 |
WO1998013667A1 (fr) * | 1996-09-27 | 1998-04-02 | Honeywell Inc. | Integration et commande des circuits de servitude d'un aeronef |
US6181800B1 (en) * | 1997-03-10 | 2001-01-30 | Advanced Micro Devices, Inc. | System and method for interactive approximation of a head transfer function |
US6173061B1 (en) * | 1997-06-23 | 2001-01-09 | Harman International Industries, Inc. | Steering of monaural sources of sound using head related transfer functions |
FR2765715B1 (fr) * | 1997-07-04 | 1999-09-17 | Sextant Avionique | Procede de recherche d'un modele de bruit dans des signaux sonores bruites |
FR2771542B1 (fr) * | 1997-11-21 | 2000-02-11 | Sextant Avionique | Procede de filtrage frequentiel applique au debruitage de signaux sonores mettant en oeuvre un filtre de wiener |
US6996244B1 (en) * | 1998-08-06 | 2006-02-07 | Vulcan Patents Llc | Estimation of head-related transfer functions for spatial sound representative |
FR2786107B1 (fr) * | 1998-11-25 | 2001-02-16 | Sextant Avionique | Masque inhalateur d'oxygene avec dispositif de prise de son |
GB2374772B (en) * | 2001-01-29 | 2004-12-29 | Hewlett Packard Co | Audio user interface |
US7123728B2 (en) * | 2001-08-15 | 2006-10-17 | Apple Computer, Inc. | Speaker equalization tool |
US20030223602A1 (en) * | 2002-06-04 | 2003-12-04 | Elbit Systems Ltd. | Method and system for audio imaging |
-
2002
- 2002-07-02 FR FR0208265A patent/FR2842064B1/fr not_active Expired - Fee Related
-
2003
- 2003-06-27 EP EP03748189A patent/EP1658755B1/fr not_active Expired - Lifetime
- 2003-06-27 US US10/518,720 patent/US20050271212A1/en not_active Abandoned
- 2003-06-27 AU AU2003267499A patent/AU2003267499C1/en not_active Ceased
- 2003-06-27 CA CA002490501A patent/CA2490501A1/fr not_active Abandoned
- 2003-06-27 WO PCT/FR2003/001998 patent/WO2004006624A1/fr active IP Right Grant
- 2003-06-27 ES ES03748189T patent/ES2302936T3/es not_active Expired - Lifetime
- 2003-06-27 DE DE60319886T patent/DE60319886T2/de not_active Expired - Fee Related
- 2003-06-27 AT AT03748189T patent/ATE390029T1/de not_active IP Right Cessation
-
2004
- 2004-12-21 IL IL165911A patent/IL165911A/en not_active IP Right Cessation
Non-Patent Citations (1)
Title |
---|
See references of WO2004006624A1 * |
Also Published As
Publication number | Publication date |
---|---|
US20050271212A1 (en) | 2005-12-08 |
WO2004006624A1 (fr) | 2004-01-15 |
DE60319886T2 (de) | 2009-04-23 |
ATE390029T1 (de) | 2008-04-15 |
IL165911A (en) | 2010-04-15 |
FR2842064A1 (fr) | 2004-01-09 |
EP1658755B1 (fr) | 2008-03-19 |
AU2003267499A1 (en) | 2004-01-23 |
FR2842064B1 (fr) | 2004-12-03 |
AU2003267499B2 (en) | 2008-04-17 |
CA2490501A1 (fr) | 2004-01-15 |
DE60319886D1 (de) | 2008-04-30 |
ES2302936T3 (es) | 2008-08-01 |
IL165911A0 (en) | 2006-01-15 |
AU2003267499C1 (en) | 2009-01-15 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP1658755B1 (fr) | Systeme de spatialisation de sources sonores | |
CA2197166C (fr) | Systeme de spatialisation sonore, et procede de personnalisation pour sa mise en oeuvre | |
EP2898707B1 (fr) | Calibration optimisee d'un systeme de restitution sonore multi haut-parleurs | |
EP2508011B1 (fr) | Traitement de zoom audio au sein d'une scène audio | |
Shilling et al. | Virtual auditory displays | |
CN113889125B (zh) | 音频生成方法、装置、计算机设备和存储介质 | |
US9992602B1 (en) | Decoupled binaural rendering | |
US11257478B2 (en) | Signal processing device, signal processing method, and program | |
EP2920979B1 (fr) | Acquisition de données sonores spatialisées | |
WO2021186102A1 (fr) | Rendu de réverbération | |
EP2194734A1 (fr) | Procédé et système de spatialisation du son par mouvement dynamique de la source | |
US20180220251A1 (en) | Ambisonic audio with non-head tracked stereo based on head position and time | |
US9715366B2 (en) | Digital map of a physical location based on a user's field of interest and a specific sound pattern | |
FR3025325A1 (fr) | Dispositif et procede de localisation et de cartographie | |
EP1652406B1 (fr) | Systeme et procede de determination d'une representation d'un champ acoustique | |
EP3400599B1 (fr) | Encodeur ambisonique ameliore d'une source sonore a pluralite de reflexions | |
EP3025514B1 (fr) | Spatialisation sonore avec effet de salle | |
Maempel et al. | Audiovisual perception of real and virtual rooms | |
US11451931B1 (en) | Multi device clock synchronization for sensor data fusion | |
CN115335899A (zh) | 用于目标语音分离的具有神经网络的多抽头最小方差无失真响应波束成形器 | |
US20240292171A1 (en) | Systems and methods for efficient and accurate virtual accoustic rendering | |
Filipanits | Design and implementation of an auralization system with a spectrum-based temporal processing optimization | |
CN117198314A (zh) | 语音处理方法、装置、电子设备及存储介质 | |
CN115463422A (zh) | 原生云游戏的多用户环绕声计算方法、装置、介质及设备 | |
Ludovico et al. | Head in space: A head-tracking based binaural spatialization system |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20041216 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: THALES |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: EP |
|
REF | Corresponds to: |
Ref document number: 60319886 Country of ref document: DE Date of ref document: 20080430 Kind code of ref document: P |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: FG4D Free format text: LANGUAGE OF EP DOCUMENT: FRENCH |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20080319 |
|
REG | Reference to a national code |
Ref country code: ES Ref legal event code: FG2A Ref document number: 2302936 Country of ref document: ES Kind code of ref document: T3 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: AT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20080319 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20080319 |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: FD4D |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: CZ Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20080319 Ref country code: PT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20080826 Ref country code: SE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20080619 Ref country code: SK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20080319 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: RO Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20080319 |
|
BERE | Be: lapsed |
Owner name: THALES Effective date: 20080630 |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20080319 Ref country code: DK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20080319 Ref country code: MC Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20080630 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
26N | No opposition filed |
Effective date: 20081222 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: BE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20080630 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: BG Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20080619 Ref country code: EE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20080319 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20080630 Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20080630 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: NL Payment date: 20090603 Year of fee payment: 7 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: IT Payment date: 20090619 Year of fee payment: 7 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: CY Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20080319 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: ES Payment date: 20090709 Year of fee payment: 7 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20090626 Year of fee payment: 7 Ref country code: GB Payment date: 20090624 Year of fee payment: 7 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LU Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20080627 Ref country code: HU Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20080920 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: TR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20080319 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20080620 |
|
REG | Reference to a national code |
Ref country code: NL Ref legal event code: V1 Effective date: 20110101 |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20100627 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20100627 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20110101 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: NL Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20110101 |
|
REG | Reference to a national code |
Ref country code: ES Ref legal event code: FD2A Effective date: 20110715 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: ES Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20110705 Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20100627 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: ES Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20100628 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20120619 Year of fee payment: 10 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST Effective date: 20140228 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20130701 |