EP1800517B1 - Dispositif et procede de commande d'une installation de sonorisation et installation de sonorisation correspondante - Google Patents

Dispositif et procede de commande d'une installation de sonorisation et installation de sonorisation correspondante Download PDF

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Publication number
EP1800517B1
EP1800517B1 EP05801889A EP05801889A EP1800517B1 EP 1800517 B1 EP1800517 B1 EP 1800517B1 EP 05801889 A EP05801889 A EP 05801889A EP 05801889 A EP05801889 A EP 05801889A EP 1800517 B1 EP1800517 B1 EP 1800517B1
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Prior art keywords
wave field
field synthesis
loudspeaker
sound
loudspeakers
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German (de)
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EP1800517A1 (fr
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René RODIGAST
Michael Strauss
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Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
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Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/32—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
    • H04R1/40—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers
    • H04R1/403—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers loud-speakers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R5/00—Stereophonic arrangements
    • H04R5/02—Spatial or constructional arrangements of loudspeakers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R27/00—Public address systems
    • 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
    • H04R3/12—Circuits for transducers, loudspeakers or microphones for distributing signals to two or more loudspeakers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S3/00—Systems employing more than two channels, e.g. quadraphonic
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2201/00—Details of transducers, loudspeakers or microphones covered by H04R1/00 but not provided for in any of its subgroups
    • H04R2201/40—Details of arrangements for obtaining desired directional characteristic by combining a number of identical transducers covered by H04R1/40 but not provided for in any of its subgroups
    • H04R2201/403—Linear arrays of transducers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2201/00—Details of transducers, loudspeakers or microphones covered by H04R1/00 but not provided for in any of its subgroups
    • H04R2201/40—Details of arrangements for obtaining desired directional characteristic by combining a number of identical transducers covered by H04R1/40 but not provided for in any of its subgroups
    • H04R2201/405—Non-uniform arrays of transducers or a plurality of uniform arrays with different transducer spacing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2430/00—Signal processing covered by H04R, not provided for in its groups
    • H04R2430/01—Aspects of volume control, not necessarily automatic, in sound systems
    • 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
    • H04S2420/13—Application of wave-field synthesis in stereophonic audio systems

Definitions

  • the present invention relates to audio reproduction systems, and more particularly to public address systems for supplying comparatively large sound reproduction spaces.
  • Typical public address systems for supplying a relatively large environment such as in a conference room on the one hand or a concert hall in a hall or even in the open air on the other hand all suffer from the problem that due to the commonly used small number of speaker channels a faithful reproduction of the sound sources anyway eliminated , But even if a left channel and a right channel are used in addition to the mono channel, you always have the problem of the level. So, of course, the back seats, so the seats that are far away from the stage, need to be sounded as well as the seats that are close to the stage. If z. B.
  • a single monaural loudspeaker does not allow directional perception in a conference room. It only allows directional perception if the location of the loudspeaker corresponds to the direction. This is inherent in the fact that there is only one loudspeaker channel. However, even if there are two stereo channels, you can at most between the left and the right channel back and forth, so to speak panning. This may be beneficial if there is only one source. However, if there are several sources, the localization, which is only roughly possible with two stereo channels anyway, is completely impossible. You also have a sense of direction in stereo, but only in the sweet spot. In the case of several sources, this directional impression becomes more and more blurred, especially as the number of sources increases.
  • the loudspeakers in such medium to large auditoriums which are supplied with stereo or mono mixes, are arranged above the listeners, so that they can not reproduce any directional information of the source anyway.
  • support loudspeakers are also used, which are positioned near a sound source. This is an attempt to restore the natural hearing location.
  • These support speakers are normally driven without delay, while the stereo sound is delayed through the supply speakers, so that the support speaker is first perceived and thus according to the law of the first wavefront localization is possible.
  • support speakers also have the problem that they are perceived as a point source. This leads, on the one hand, to a difference to the actual position of the sound emitter and, moreover, there is the danger that everything is too loud for the front viewers, while everything is too quiet for the back viewers.
  • support speakers only allow a real direction perception when the sound source, so z.
  • a speaker is located directly in the vicinity of the support speaker. This would work if a support speaker is installed in the lectern, and a speaker is always on the lectern, and in this playback room it is impossible that somebody stands next to the lectern and plays something for the audience.
  • support loudspeakers usually use conventional loudspeakers, which in turn have the acoustic properties of a point source-just as the supply loudspeakers-resulting in an excessive level which is often perceived as unpleasant in the immediate vicinity of the systems.
  • the object of the present invention is to provide a pleasant and accurate sound concept.
  • the present invention is characterized in that a wave field synthesis loudspeaker array is integrated into a typical already existing public address system in order to eliminate the problems regarding the high sound level differences in the auditorium as well as the lack of directional perception or the wrong directional perception.
  • the inventive apparatus for driving a public address system with loudspeaker signals wherein the public address system comprises a wave field synthesis loudspeaker array and one or more supply speakers, has an audio input for obtaining the audio signal from at least one sound source, a position input for obtaining information about a position of the sound source, a wave field synthesis unit for calculating loudspeaker signals for the loudspeakers of the wave field synthesis loudspeaker array and means for providing the loudspeaker signals for the one or more supply loudspeakers.
  • a local perception of the sound sources that is accurate and even works for movable sound sources is achieved, while at the same time the level problem is eliminated in that a loudspeaker array is no longer perceived as a point source but as a line source in that the loudspeakers placed close to a listener are quieter controlled as compared to a point source loudspeaker, as there are still more array loudspeakers that are further from the listener and still bring sonic energy into the PA room.
  • the large sound supply is achieved with still existing conventional power speakers. So, however, due to the sound energy, which is supplied by the wave field synthesis loudspeaker array, the level for the front speakers, which are in the audience in the front rows, can be made lower, since the front rows yes now by the preferably front arranged wave field synthesis array pleasant and directionally sensitive be supplied with sound.
  • the present invention thus provides an improvement of conventional sound systems by the additionally integrated wave field synthesis sound by providing and controlling the additional wave field synthesis loudspeaker array.
  • the present invention is advantageous in that the auditory perception of source positions is supported and enhanced. Furthermore, the concept of the invention improves the energy distribution and the perception of direction in auditoria, which will also lead to a better intelligibility of a speaker, in particular when used for conference systems.
  • the present invention can also be used advantageously in the installation and event sector, and in particular, of course, also for larger public address systems.
  • the present invention is also advantageous in that existing hardware can be used for large-scale sound supplies. This concerns, on the one hand, the already existing audio mixing consoles and, on the other hand, the supply loudspeakers which typically already exist and are supplemented by the wave field synthesis array or the device for controlling the supply loudspeakers or the wave field synthesis arrays.
  • the drive device according to the invention is only at the level of the normal Speaker signals of the supply speakers act to produce a damping compared to the case without wave field synthesis array. Further, in order to exploit the law of the first wavefront, a delay is also introduced for the sound signals of the supply loudspeakers in ranges between one and 100 milliseconds in order to additionally support the direction perception.
  • the drive device is transparent to the output signal of a mixer, which is typically present in such systems anyway.
  • the integration of the directional wave field synthesis front array creates a pleasant sound level distribution with real directional perception, can be executed in compact hardware and creates the urgently needed additional sound supply of the often underserved or too loudly sounded first listener rows with a natural listening experience. This is of particular importance when it is taken into account that in various conference rooms or concert halls the so-called VIPs, ie the persons on whom the economic survival of the theater, etc. depends, sit in the first row, ie in the area which has been particularly problematical in the prior art, and which will particularly benefit from the inventive use of the wavefield synthesis front array.
  • the inventive concept in comparison to a complete wave field synthesis system is advantageous in that it can be implemented considerably cheaper, since not four pages a wave field synthesis array is used and thus a very considerable amount of speakers and cabling, etc. must be driven. Instead, only a front array is used to position the typically upstream virtual sources to be able to. Of the Sweet spot "of this open wave field synthesis array will be as large as in an entire wave field synthesis scenario if the sources are only at the front, only for sources in other directions is the sweet spot restricted.
  • the quality of the sound reconstruction may be reduced by means of the planar wave field synthesis front loudspeaker array.
  • this is not problematic insofar as the stage will always be further away for the eye and localization differences will be small, because due to the greater distance, the places themselves will, as it were, move closer together.
  • the wave-field synthesis reconstruction of a straight front array in this case thus also leads to a situation in which the reconstruction gets worse the further one is removed from the array.
  • this disadvantage does not matter.
  • the rear rows are taken care of by the large and powerful supply speakers, which at least make it sufficiently loud for the rear rows.
  • Fig. 1 shows a device for controlling a PA system with loudspeaker signals, wherein the PA system comprises a wave field synthesis loudspeaker array 10 and one or more supply speakers 12, which are arranged separately from the wave field synthesis loudspeaker array 10 and in which Fig. 1 shown embodiment are denoted L for a left supply speaker, R for a right supply speaker and M for a mono or center speaker. Depending on the embodiment, only a mono speaker M may be present, or else a left speaker L or a right speaker R.
  • a particular arrangement of the supply speakers 12 is also in Fig. 2 in which there are only four supply speakers 12a, 12b, 12c, 12d, the left supply speakers 12c, 12d are supplied with the L channel of the stereo signal, while the right speakers 12b, 12c are supplied with the right channel of the stereo signal.
  • a mono or center speaker is in Fig. 2 z. B. not available.
  • each of the speakers 12a-12d could be supplied with the mono-channel M.
  • the entire room 13 to be sounded would be supplied with a mono signal radiated from the four loudspeakers.
  • the wave field synthesis loudspeaker array 10 is arranged in front of a stage 11, on which are real sound sources, such as speakers, theater actors, musicians, etc., generally designated by the reference numeral 15 in FIG Fig. 2 are designated can be located.
  • the wave field synthesis loudspeaker array 10 is a flat open array. This means that the wave field synthesis loudspeaker array does not surround all four sides of the in Fig. 2 extends from above shown to be supplied with sound space 13, but only on one side. This page is preferably located there with respect to the space to be supplied with sound, where the typically existing virtual / real sound sources can be. So is in a theater z. B.
  • a wave field synthesis loudspeaker array is located on the side of the room to be supplied with sound 13, which is the stage 11 opposite or the area is opposite, in which there are any sound sources can.
  • the wave field synthesis loudspeaker array 10 is arranged between the real sound sources and the room 13 to be supplied with sound, that is to say as in FIG Fig. 2 represented, or whether the wave field synthesis loudspeaker array 10 is located behind the real sound source, so z. B. at an in Fig. 2 illustrated dashed position 17.
  • the real sound sources as they are in Fig. 2 are plotted on the stage 11 are imaged by the wave field synthesis unit to be discussed in virtual sound sources, such that a reconstructed from the wave field synthesis speaker array sound field is designed such that a listener in the room to be supplied with sound 13th indeed means that the sound sources he hears are in the real positions on stage, in the Fig. 2 case of the wave field synthesis loudspeaker array 10 located behind the loudspeaker array.
  • the scenario of Fig. 2 can be compared, as it were, to a normal wave-field synthesis setting, but in contrast to the normal setting, the wave-field synthesis loudspeaker array 10 is arranged only on one side, namely on the stage side, while in a normal wave field synthesis setting the wave field synthesis loudspeaker array is at least about would extend the entire room to be supplied with sound 13 around, where appropriate, even in the ceiling and in the ground also wave field synthesis speaker arrays could be attached.
  • the driving device of Fig. 1 first comprises an audio input 16, are supplied via the output signals from a microphone array 19 or any other audio source to an analog / digital converter 20.
  • the audio input 16 is at the in Fig. 1 shown scenario in which microphones are actually present to receive analog microphone signals. However, if the microphones 19 and the analog-to-digital converter 20 are replaced by a synthetic scenario in which certain sound sources whose output signals are already pre-recorded move in a virtual space, the audio input 16 receives no analog output signals from a microphone array 19 but in general terms - audio signals from at least one sound source, which may be in any form, for example in a compressed / encoded form or in the form of a sequence of samples, such as those found on a CD.
  • the audio signal of at least one sound source is fed to a wave field synthesis unit 22, which additionally receives information about the current position of this sound source via a position input 24.
  • the additional positioning signal may be fed to the controller rather than directly to the WFS unit.
  • the sources are thus positioned on the user interface or via the positioning input.
  • the actual position of the previously recorded and position-determined sound source may in fact be provided directly with the audio signal of the wave field synthesis unit 22.
  • the position of the source can also be transmitted as side information of the audio signal. In this case, the audio signal input and the position input coincide.
  • this actor will carry one of the microphones of the microphone array 19 with him and also z. B. be provided with a GPS transmitter so that its position can be currently determined.
  • Other techniques for example, by infrared triangulation or by HF triangulation or by any other positioning method are known.
  • the wave field synthesis unit 22 will receive, via the position input 24, at least the then naturally fixed position of all the microphones and carry out a reconstruction thereof.
  • the wave field synthesis unit 22 is configured to receive loudspeaker signals for the loudspeakers of the wave field synthesis loudspeaker array based on the position obtained via the position input 24, the audio signal received via the audio signal input 16, and based on the position of the loudspeakers of the wave field synthesis loudspeaker array so that a sound field generated by the wave field synthesis loudspeaker array allows localization of the at least one sound source by a listener.
  • the down-mixed channels generated by a conventional mixer 14 are also input to the drive device according to the invention. that is, means for providing the loudspeaker signal to the one or more supply loudspeakers based on the audio signal from the at least one sound source.
  • a conventional mixer 14 analog or digital or a digital audio workstation
  • the analog / digital converter 20 a delay stage 24a and an amplitude manipulation stage 24b include. Both stages are driven by a control 26 preferably present in the drive device, with delay parameters relating to the delay stage 24a and gain or attenuation parameters with respect to the amplitude manipulation stage 24b.
  • all supply speaker channels may be delayed or amplified by the same value or by different values.
  • the controller 26 is preferably operable via a user interface 28, which will typically be a graphical user interface.
  • the drive device will be provided on the output side with a digital / analog converter 30 which outputs analog output signals for the loudspeakers of the wave field synthesis loudspeaker array 10 on the one hand and loudspeaker signals for the supply loudspeakers L, R, M on the other hand Fig. 1 denoted by 12, outputs, wherein here, depending on the implementation, an additional amplifier 32 for amplifying the speaker signals will be present for the typically high-level supply speakers.
  • the wave field synthesis unit 22 is configured to provide a scalable number of wave field synthesis channels 23.
  • a loudspeaker of a wave field synthesis loudspeaker array will receive its own loudspeaker signal.
  • the drive may also be such that a group of adjacent loudspeakers in the wave field synthesis loudspeaker array are driven with the same loudspeaker signal.
  • the position of the wave field synthesis loudspeaker array, and hence each individual loudspeaker, in the wave field synthesis loudspeaker array is known and, like the position input of the sound source, is used for the wave field synthesis calculation.
  • the wave field synthesis unit 22 is scalable. This means that, depending on the number of wave field synthesis loudspeaker arrays 10 connected to the wave field synthesis unit 22, it will generate a corresponding number of output channels. Requires an array z. For example, if ten different wave field synthesis loudspeaker signals are used, a second array of the same size will also require ten wave field synthesis loudspeaker channels, so that when two such arrays are connected to it, the wave field synthesis unit 22 will also provide the appropriate number of loudspeaker signals.
  • the scalability can be formed by a sensor that detects whether z.
  • a sensor that detects whether z.
  • the outputs will be labeled "first array”, "second array”, .... so that the drive device may be e.g. B. via a table access or something similar positions and number of additional arrays automatically receives.
  • the number of channels / arrays of the wave-field synthesis unit 22 can also be communicated via the graphical user interface 28 and the controller 26.
  • the scalability is particularly valuable, since anyway only an open wave field synthesis array is used, so no speaker bands around a listener room, but only on the stage side of the auditorium, so that in the case where a straight array is then placed on an already existing straight array, the positions of the other speakers particularly favorable z. B. can be retrieved by means of a table access and the wave field synthesis unit 22 can be provided for calculating the now higher number of wave field synthesis loudspeaker signals.
  • the controller 26 is configured to drive the delay stage 24a such that the loudspeaker signals are delayed such that the wavefront from the wave field synthesis loudspeaker array 10 arrives at a listener about 2 to 10 milliseconds before the time to which the wavefront of the supply speakers arrives.
  • the law of the first sound wave front is exploited, to the effect that the listener in the room initially - relatively quietly - perceives the wavefront of the wave field synthesis loudspeaker array 10 and then only the wavefront from the typically louder supply speakers.
  • the user will feel that the sound sources are at the positions as suggested by the wave field synthesis loudspeaker array, although the actual sound supply is through the supply speakers.
  • the controller 26 controls the amplitude manipulation unit 24b to either all channels or only a few channels or signals for specific speakers by the same amount or to dampen different amounts.
  • Wave Field Synthesis (WFS)
  • WFS Wave Field Synthesis
  • Applied to the acoustics can be simulated by a large number of speakers, which are arranged side by side (a so-called speaker array), any shape of an incoming wavefront.
  • a so-called speaker array any shape of an incoming wavefront.
  • the audio signals of each speaker must be fed with a time delay and amplitude scaling so that the radiated sound fields of each speaker properly overlap.
  • the contribution to each speaker is calculated separately for each source and the resulting signals added together. If the sources to be reproduced are in a room with reflective walls, reflections must also be reproduced as additional sources via the loudspeaker array. The cost of the calculation therefore depends heavily on the number of sound sources, the reflection characteristics of the recording room and the number of speakers.
  • wavefield synthesis works well for environments whose characteristics are known, irregularities occur when the texture changes, or when wave field synthesis is performed based on environmental conditions that do not match the actual nature of the environment.
  • An environmental condition can be described by the impulse response of the environment.
  • the space compensation using wavefield synthesis would be to first determine the reflection of that wall to determine when a sound signal reflected from the wall will return to the loudspeaker and what amplitude this reflected sound signal will be Has. If the reflection from this wall is undesirable, then with the wave field synthesis it is possible to eliminate the reflection from this wall by impressing the loudspeaker with a signal of opposite amplitude to the reflection signal in addition to the original audio signal, so that the traveling compensating wave is the Reflectance wave extinguished, so that the reflection from this wall in the environment that is considered, is eliminated. This can be done by first computing the impulse response of the environment and determining the nature and position of the wall based on the impulse response of that environment, the wall being interpreted as a source of mirrors, that is, a sound source reflecting an incident sound.
  • Wavefield synthesis (WFS or sound field synthesis), as developed at the TU Delft in the late 1980s, represents a holographic approach to sound reproduction. The basis for this is the Kirchhoff-Helmholtz integral. This states that any sound fields within a closed volume can be generated by means of a distribution of monopole and dipole sound sources (loudspeaker arrays) on the surface of this volume. Details can be found in MM Boone, ENG Verheijen, PF.
  • a synthesis signal for each loudspeaker of the loudspeaker array is calculated from an audio signal which emits a virtual source at a virtual position, the synthesis signals being designed in amplitude and phase such that a wave resulting from the superposition of the individual the sound wave present in the loudspeaker array will correspond to the wave that would result from the virtual source at the virtual position if that virtual source at the virtual position were a real source with a real position.
  • multiple virtual sources exist at different virtual locations.
  • the computation of the synthesis signals is performed for each virtual source at each virtual location, typically resulting in one virtual source in multiple speaker synthesis signals. Seen from a loudspeaker, this loudspeaker thus receives several synthesis signals, which go back to different virtual sources. A superimposition of these sources, which is possible due to the linear superposition principle, then gives the reproduced signal actually emitted by the speaker.
  • the finished and analog-to-digital converted reproduction signals for the individual loudspeakers could, for example, be transmitted via two-wire lines from the wave field synthesis central unit to the individual loudspeakers.
  • the wave field synthesis central unit could always be made only for a special reproduction room or for a reproduction with a fixed number of loudspeakers.
  • a Wave Field Synthesis-Based Front Array 10 of Fig. 1 plays back the recorded sound sources from the correct direction and distance, so that a source is heard where it originated. These virtual sound sources are reproduced with the shortest systemic latency. Significant sources of latency are the wave-field synthesis unit 22 and optionally the analog-to-digital converters 20 and 30, respectively.
  • the main sonication reproduces conventional mono / stereo / multichannel signals, but is delayed from the front array by a few milliseconds, with the delay in the Section 2-100 milliseconds, and preferably between 3 and 8 milliseconds.
  • the main sound through the supply speakers 12 sonicates the auditorium with sufficient levels.
  • the front array operates at a reduced level to obtrusively support directional perception. If the front array is optimally arranged, then a real sense of direction will result up to the rear rows, whereby a sufficient sound distribution is ensured.
  • driving device is a compact audio system on PC or DSP basis consisting of audio matrix, delay unit, wave field synthesis-based real-time renderer unit, controller module and connection and control unit feasible.
  • the audio signals of the natural sources are conventionally provided to the summer unit and the mixer 14 and the wave field synthesis rendering unit, respectively.
  • the audio signals for conventional sound such as stereo, mono, 5.1, etc. are generated (14) and then delayed in a delay stage 24a accordingly.
  • the amplitude between main and directional array can be adjusted.
  • the individual sources in the wave field synthesis rendering unit 22 become virtual sound sources which are positioned or moved according to their actual position on the stage.
  • the wave field synthesis rendering unit 22 calculates the audio signals needed for the wave field synthesis front array, thereby ensuring real direction mapping of the audio sources.
  • the virtual sound sources are positioned according to the implementation, so that in this case the user interface 28, for example in the form of a pointer, the position input 24 of Fig. 1 represents. Further, in the user interface unit 28 or in the controller, the delay of the stage 24a as well as the level between the front array, main PA, delay line and other audio sinks are adjusted. Preferably, the corresponding generated setups are each storable, so as not to have to be reset each time, but in order to be made available for later or other applications / scenarios.
  • the wave field synthesis front array With regard to the placement of the wave field synthesis front array in a conventional stage environment, it is preferred to place the wave field synthesis front array at head height of the viewers or above the head height of the viewers and place them in front of the stage. Further, it is preferred to take a wavefield synthesis front array 10 that is wider than the viewer rows to avoid edge effects on the array edge.
  • the inventive concept provides a real sense perception by representing virtual sound sources based on the wave field synthesis. Furthermore, no angular errors are made in the directional resolution.
  • virtual sound sources can be placed where the actor stands. Movements of the actors are possible without crossfading. Static sources remain stable. The sound supply of the auditorium with a sufficient sound level is still ensured with standard systems, which means that existing hardware can be used optimally.
  • the concept according to the invention does not require a closed array for supplying the listening area, since the supply can be ensured by the conventional sonication. It now results in a moderate sound level, especially in the first rows of spectators, as the sound energy is distributed. Namely, there are always several speakers of the wave field synthesis loudspeaker array, resulting in a natural listening environment especially in the first audiences, where typically also the people will sit, which are relevant to the survival of a theater / auditorium and therefore of course are particularly well to provide ,
  • the wave field synthesis array is placed slightly above the heads of the listeners. Even higher arrangements are potentially possible here, but too high an arrangement will lead to possibly occurring mislocalizations in the vertical. However, due to psychoacoustic laws, it has been found that vertical mislocalizations are less problematic than horizontal mislocalizations. So it is not so problematic for a listener, if he hears a source a little too high, if for the left / right position on the stage is exactly right.
  • both loudspeaker systems are controlled in such a way that the wavefront of the wave field synthesis loudspeaker array arrives somewhat in front of the wavefront of the supply loudspeakers in the listener.
  • Preferred areas of application of the inventive concept are conference rooms.
  • the inventive device now a location of a speaker is possible.
  • the concept according to the invention allows a localization of the speaker not only visually but also audibly.
  • the device according to the invention is easy to use, since in the stage design often no support speakers can be installed.
  • the installation of a continuous loudspeaker band in the stage edge is particularly advantageous and less conspicuous.
  • the functionality of the concept according to the invention namely that the sound sources can move and are accordingly acoustically moved along, is of particular advantage for theatrical applications which depend on the movement of the actors.
  • the inventive concept provides a resolution of individual instruments by virtual sound sources, while still a total supply of the usual level is possible, which is particularly important for popular music concerts of high importance.
  • the method according to the invention can be implemented in hardware or in software.
  • the implementation may be on a digital storage medium, in particular a floppy disk or CD with electronically readable control signals, which may interact with a programmable computer system such that the method is performed.
  • the invention thus also consists in a computer program product with a on a machine-readable carrier stored program code for performing the method according to the invention, when the computer program product runs on a computer.
  • the invention can thus be realized as a computer program with a program code for carrying out the method when the computer program runs on a computer.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • General Health & Medical Sciences (AREA)
  • Stereophonic System (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
  • Selective Calling Equipment (AREA)

Claims (16)

  1. Dispositif de commande d'une installation de sonorisation par des signaux de haut-parleur, l'installation de sonorisation présentant un réseau de haut-parleurs à synthèse de champ d'ondes (10) ainsi qu'un ou plusieurs haut-parleurs d'alimentation (12) qui sont disposés séparés du réseau de haut-parleurs à synthèse de champ d'ondes (10), aux caractéristiques suivantes:
    une entrée audio (16) destinée à obtenir au moins un signal audio d'au moins une source sonore;
    une entrée de position (24) destinée à obtenir une information relative à une position de la source sonore;
    une unité de synthèse de champ d'ondes (22) destinée à calculer des signaux de haut-parleur pour les haut-parleurs du réseau de haut-parleurs à synthèse de champ d'ondes (10) sur base de la position (24) du signal audio, sur base du signal audio, et sur base d'une position des haut-parleurs du réseau de haut-parleurs à synthèse de champ d'ondes (10), de sorte qu'un champ sonore généré par le réseau de haut-parleurs à synthèse de champ d'ondes permette une localisation de la source sonore par un auditeur dans un local (13) qui est alimenté par les haut-parleurs d'alimentation (12); et
    un moyen (20, 24a, 24b, 30) destiné à fournir le signal de haut-parleur pour l'un ou les plusieurs haut-parleurs d'alimentation (12) sur base du signal audio,
    caractérisé par le fait que le dispositif de commande est réalisé de manière à commander le réseau de haut-parleurs à synthèse de champ d'ondes et l'un ou les plusieurs haut-parleurs d'alimentation de sorte qu'un front d'onde du réseau de haut-parleurs à synthèse de champ d'ondes arrive chez un auditeur avant un front d'onde de l'un ou des plusieurs haut-parleurs d'alimentation.
  2. Dispositif selon la revendication 1, dans lequel le moyen destiné à fournir est réalisé de manière à fournir, à partir du signal audio de l'une ou des plusieurs sources sonores, un signal mono, un signal stéréo ou un signal multicanal dérivé par mélange (14).
  3. Dispositif selon la revendication 1 ou 2, dans lequel le moyen destiné à fournir présente par ailleurs une unité de temporisation (24a) qui est réalisée de manière à retarder le signal de haut-parleur pour l'un ou les plusieurs haut-parleurs d'alimentation (12) en fonction d'une temporisation de l'unité de synthèse de champ d'ondes (22) de sorte qu'un front d'onde des haut-parleurs d'alimentation (12) arrive plus tard chez un auditeur qu'un front d'onde sur base du réseau de haut-parleurs à synthèse de champ d'ondes (10).
  4. Dispositif selon la revendication 3, dans lequel le moyen de temporisation (24a) est réalisé de manière à retarder le signal de haut-parleur pour l'un ou les plusieurs haut-parleurs d'alimentation de 1 à 100 ms de plus qu'une temporisation de l'unité de synthèse de champ d'ondes (22).
  5. Dispositif selon l'une des revendications précédentes, présentant par ailleurs une unité de commande de niveau (24) qui est réalisée de manière à commander le signal de haut-parleur pour l'un ou les plusieurs haut-parleurs d'alimentation (12) ou les signaux de haut-parleur pour le réseau de haut-parleurs à synthèse de champ d'ondes de sorte qu'un niveau sonore sur base du réseau de haut-parleurs à synthèse de champ d'ondes (10) soit, au moins dans une zone déterminée du local (13), inférieur à un niveau sonore de l'un ou des plusieurs haut-parleurs d'alimentation.
  6. Dispositif selon l'une des revendications précédentes, dans lequel l'unité de synthèse de champ d'ondes (22) est réalisée de manière à fournir un nombre modulable de signaux de haut-parleur à synthèse de champ d'ondes.
  7. Dispositif selon l'une des revendications précédentes, dans lequel l'unité de synthèse de champ d'ondes (22) est réalisée de manière à calculer un nombre de signaux de haut-parleur qui est supérieur à un nombre de signaux de haut-parleur pour l'un ou les plusieurs haut-parleurs d'alimentation (12).
  8. Dispositif selon la revendication 7, dans lequel le nombre de signaux de haut-parleur pour le réseau de haut-parleurs à synthèse de champ d'ondes (10) est au moins trois fois plus grand qu'un nombre de signaux de haut-parleur pour les haut-parleurs d'alimentation (12).
  9. Procédé de commande d'une installation de sonorisation par des signaux de haut-parleur, l'installation de sonorisation présentant un réseau de haut-parleurs à synthèse de champ d'ondes (10) ainsi qu'un ou plusieurs haut-parleurs d'alimentation (12) qui sont disposés séparés du réseau de haut-parleurs à synthèse de champ d'ondes (10), aux étapes suivantes consistant à:
    obtenir (16) au moins un signal audio d'au moins une source sonore;
    obtenir (24) une information relative à une position de la source sonore;
    calculer (22) des signaux de haut-parleur pour les haut-parleurs du réseau de haut-parleurs à synthèse de champ d'ondes (10) sur base de la position (24) du signal audio, sur base du signal audio, et sur base d'une position des haut-parleurs du réseau de haut-parleurs à synthèse de champ d'ondes (10), de sorte qu'un champ sonore généré par le réseau de haut-parleurs à synthèse de champ d'ondes permette une localisation de la source sonore par un auditeur dans un local (13) qui est alimenté par les haut-parleurs d'alimentation (12); et
    fournir (14, 20, 24a, 24b, 30, 32) le signal de haut-parleur pour l'un ou les plusieurs haut-parleurs d'alimentation (12) sur base du signal audio,
    caractérisé par le fait que le procédé de commande est réalisé de sorte que le réseau de haut-parleurs à synthèse de champ d'ondes et l'un ou les plusieurs haut-parleurs d'alimentation soient commandés de sorte qu'un front d'onde du réseau de haut-parleurs à synthèse de champ d'ondes arrive chez un auditeur avant un front d'onde de l'un ou des plusieurs haut-parleurs d'alimentation.
  10. Installation de sonorisation aux caractéristiques suivantes:
    un réseau de haut-parleurs à synthèse de champ d'ondes (10);
    un ou plusieurs haut-parleurs d'alimentation (12); et
    un dispositif de commande selon l'une des revendications 1 à 8.
  11. Installation de sonorisation selon la revendication 10, qui est disposée dans un local (13) avec un bord avant et un bord gauche et un bord droit,
    au moins deux haut-parleurs d'alimentation (12d, 12b) étant présents, dont un est disposé au bord gauche et un au bord droit, et
    le réseau de haut-parleurs à synthèse de champ d'ondes (10) étant disposé au bord avant.
  12. Installation de sonorisation selon la revendication 11, dans laquelle le bord avant est adjacent à une zone pour une source sonore (15).
  13. Installation de sonorisation selon la revendication 12, dans laquelle la zone est une scène (11) ou une zone d'orateur d'une salle de conférences.
  14. Installation de sonorisation selon l'une des revendications 10 à 13, dans laquelle le réseau de haut-parleurs à synthèse de champ d'ondes (10) est un réseau planaire dans lequel les haut-parleurs se situent dans un plan à des distances prédéterminées entre eux.
  15. Installation de sonorisation selon l'une des revendications 12 ou 13, dans laquelle le réseau de haut-parleurs à synthèse de champ d'ondes est incorporé dans un bord de la scène à hauteur de tête des spectateurs dans le local à alimenter en son (13) ou au-dessus de cette hauteur de tête.
  16. Programme d'ordinateur avec un code de programme pour réaliser le procédé selon la revendication 9 lorsque le programme d'ordinateur est exécuté sur un ordinateur.
EP05801889A 2004-11-29 2005-11-10 Dispositif et procede de commande d'une installation de sonorisation et installation de sonorisation correspondante Active EP1800517B1 (fr)

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DE102004057500A DE102004057500B3 (de) 2004-11-29 2004-11-29 Vorrichtung und Verfahren zur Ansteuerung einer Beschallungsanlage und Beschallungsanlage
PCT/EP2005/012057 WO2006058602A1 (fr) 2004-11-29 2005-11-10 Dispositif et procede de commande d'une installation de sonorisation et installation de sonorisation correspondante

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EP (1) EP1800517B1 (fr)
JP (1) JP4819823B2 (fr)
AT (1) ATE405131T1 (fr)
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Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005033238A1 (de) * 2005-07-15 2007-01-25 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Vorrichtung und Verfahren zum Ansteuern einer Mehrzahl von Lautsprechern mittels eines DSP
DE102005033239A1 (de) * 2005-07-15 2007-01-25 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Vorrichtung und Verfahren zum Steuern einer Mehrzahl von Lautsprechern mittels einer graphischen Benutzerschnittstelle
US20090097669A1 (en) * 2007-10-11 2009-04-16 Fujitsu Ten Limited Acoustic system for providing individual acoustic environment
JP2011155500A (ja) * 2010-01-27 2011-08-11 Sharp Corp モニタ制御装置及び音響システム
JP5988710B2 (ja) 2011-06-14 2016-09-07 ヤマハ株式会社 音響システム及び音響特性制御装置
DE102011082310A1 (de) 2011-09-07 2013-03-07 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Vorrichtung, Verfahren und elektroakustisches System zur Nachhallzeitverlängerung
US9578438B2 (en) 2012-03-30 2017-02-21 Barco Nv Apparatus and method for driving loudspeakers of a sound system in a vehicle
US10448161B2 (en) * 2012-04-02 2019-10-15 Qualcomm Incorporated Systems, methods, apparatus, and computer-readable media for gestural manipulation of a sound field
FR2996095B1 (fr) 2012-09-27 2015-10-16 Sonic Emotion Labs Procede et dispositif de generation de signaux audio destines a etre fournis a un systeme de restitution sonore
JP6093373B2 (ja) * 2012-11-28 2017-03-08 クラリオン株式会社 デジタルスピーカーシステム
US9183829B2 (en) * 2012-12-21 2015-11-10 Intel Corporation Integrated accoustic phase array
KR102160218B1 (ko) * 2013-01-15 2020-09-28 한국전자통신연구원 사운드 바를 위한 오디오 신호 처리 장치 및 방법
DE102013102356A1 (de) * 2013-03-08 2014-09-11 Sda Software Design Ahnert Gmbh Verfahren zum Bestimmen einer Konfiguration für eine Lautsprecheranordnung zum Beschallen eines Raums und Computerprogrammprodukt
JP2014204362A (ja) * 2013-04-08 2014-10-27 日本放送協会 スピーカアレイ装置
KR102231755B1 (ko) 2013-10-25 2021-03-24 삼성전자주식회사 입체 음향 재생 방법 및 장치
FR3018026B1 (fr) * 2014-02-21 2016-03-11 Sonic Emotion Labs Procede et dispositif de restitution d'un signal audio multicanal dans une zone d'ecoute
US9933991B2 (en) * 2015-03-10 2018-04-03 Harman International Industries, Limited Remote controlled digital audio mixing system
US9985676B2 (en) * 2015-06-05 2018-05-29 Braven, Lc Multi-channel mixing console
US9913065B2 (en) * 2015-07-06 2018-03-06 Bose Corporation Simulating acoustic output at a location corresponding to source position data
US9854376B2 (en) 2015-07-06 2017-12-26 Bose Corporation Simulating acoustic output at a location corresponding to source position data
GB2540407B (en) * 2015-07-16 2020-05-20 Powerchord Group Ltd Personal audio mixer
GB2529310B (en) * 2015-07-16 2016-11-30 Powerchord Group Ltd A method of augmenting an audio content
GB2540404B (en) * 2015-07-16 2019-04-10 Powerchord Group Ltd Synchronising an audio signal
US9956910B2 (en) * 2016-07-18 2018-05-01 Toyota Motor Engineering & Manufacturing North America, Inc. Audible notification systems and methods for autonomous vehicles
EP3870991A4 (fr) 2018-10-24 2022-08-17 Otto Engineering Inc. Système de communication audio à sensibilité directionnelle
CN109842835A (zh) * 2019-04-18 2019-06-04 青海柏马教育科技有限公司 一种自我监听音箱及其控制方法
JP2021048500A (ja) * 2019-09-19 2021-03-25 ソニー株式会社 信号処理装置、信号処理方法および信号処理システム

Family Cites Families (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5412731A (en) * 1982-11-08 1995-05-02 Desper Products, Inc. Automatic stereophonic manipulation system and apparatus for image enhancement
JP2569872B2 (ja) 1990-03-02 1997-01-08 ヤマハ株式会社 音場制御装置
JPH04132499A (ja) * 1990-09-25 1992-05-06 Matsushita Electric Ind Co Ltd 音像制御装置
US5109416A (en) * 1990-09-28 1992-04-28 Croft James J Dipole speaker for producing ambience sound
JP3519420B2 (ja) 1992-04-17 2004-04-12 日本放送協会 多チャンネル音声再生装置
US5661812A (en) * 1994-03-08 1997-08-26 Sonics Associates, Inc. Head mounted surround sound system
JP3385725B2 (ja) 1994-06-21 2003-03-10 ソニー株式会社 映像を伴うオーディオ再生装置
US5870484A (en) * 1995-09-05 1999-02-09 Greenberger; Hal Loudspeaker array with signal dependent radiation pattern
US5619582A (en) 1996-01-16 1997-04-08 Oltman; Randy Enhanced concert audio process utilizing a synchronized headgear system
JPH10243500A (ja) * 1997-02-28 1998-09-11 Victor Co Of Japan Ltd 音場再生装置
DE19739425A1 (de) * 1997-09-09 1999-03-11 Bosch Gmbh Robert Verfahren und Anordnung zur Wiedergabe eines sterophonen Audiosignals
US6931134B1 (en) * 1998-07-28 2005-08-16 James K. Waller, Jr. Multi-dimensional processor and multi-dimensional audio processor system
GB0203895D0 (en) * 2002-02-19 2002-04-03 1 Ltd Compact surround-sound system
US7706544B2 (en) 2002-11-21 2010-04-27 Fraunhofer-Geselleschaft Zur Forderung Der Angewandten Forschung E.V. Audio reproduction system and method for reproducing an audio signal
DE10254404B4 (de) * 2002-11-21 2004-11-18 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Audiowiedergabesystem und Verfahren zum Wiedergeben eines Audiosignals
US7218745B2 (en) * 2002-12-23 2007-05-15 Lear Corporation Headliner transducer covers
US7336793B2 (en) 2003-05-08 2008-02-26 Harman International Industries, Incorporated Loudspeaker system for virtual sound synthesis
DE10321986B4 (de) * 2003-05-15 2005-07-14 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Vorrichtung und Verfahren zum Pegel-Korrigieren in einem Wellenfeldsynthesesystem
DE10328335B4 (de) * 2003-06-24 2005-07-21 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Wellenfeldsyntesevorrichtung und Verfahren zum Treiben eines Arrays von Lautsprechern
JP2005080079A (ja) * 2003-09-02 2005-03-24 Sony Corp 音声再生装置及び音声再生方法
WO2006029006A2 (fr) * 2004-09-03 2006-03-16 Parker Tsuhako Procede et appareil pour la production d'un espace sonore fantome en trois dimensions avec son enregistre
US8942395B2 (en) * 2007-01-17 2015-01-27 Harman International Industries, Incorporated Pointing element enhanced speaker system
EP2189009A1 (fr) * 2007-08-14 2010-05-26 Koninklijke Philips Electronics N.V. Système de reproduction audio comprenant des haut-parleurs à directivité étroite et large
DE102007059597A1 (de) * 2007-09-19 2009-04-02 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Eine Vorrichtung und ein Verfahren zur Ermittlung eines Komponentensignals in hoher Genauigkeit

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JP2008522467A (ja) 2008-06-26
US9609434B2 (en) 2017-03-28
ATE405131T1 (de) 2008-08-15
US20130294624A1 (en) 2013-11-07
EP1800517A1 (fr) 2007-06-27
WO2006058602A1 (fr) 2006-06-08
US9374641B2 (en) 2016-06-21
US9955262B2 (en) 2018-04-24
US20070269062A1 (en) 2007-11-22
DE102004057500B3 (de) 2006-06-14
DE502005005051D1 (de) 2008-09-25
US20160205473A1 (en) 2016-07-14
JP4819823B2 (ja) 2011-11-24

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