WO2002076149A1 - Procede et dispositif pour faire fonctionner un systeme de sonorisation - Google Patents

Procede et dispositif pour faire fonctionner un systeme de sonorisation Download PDF

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Publication number
WO2002076149A1
WO2002076149A1 PCT/DE2002/000733 DE0200733W WO02076149A1 WO 2002076149 A1 WO2002076149 A1 WO 2002076149A1 DE 0200733 W DE0200733 W DE 0200733W WO 02076149 A1 WO02076149 A1 WO 02076149A1
Authority
WO
WIPO (PCT)
Prior art keywords
signals
loudspeakers
assigned
loudspeaker
interface
Prior art date
Application number
PCT/DE2002/000733
Other languages
German (de)
English (en)
Inventor
Helmut Wörner
Original Assignee
Woerner Helmut
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Woerner Helmut filed Critical Woerner Helmut
Priority to EP02719647A priority Critical patent/EP1371264A1/fr
Publication of WO2002076149A1 publication Critical patent/WO2002076149A1/fr

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Classifications

    • 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
    • H04R2227/00—Details of public address [PA] systems covered by H04R27/00 but not provided for in any of its subgroups
    • H04R2227/003—Digital PA systems using, e.g. LAN or internet

Definitions

  • the present invention relates to a method and a device for operating public address systems, in which signals originating from an analog signal source are amplified and transmitted to the individual loudspeakers of a public address system and output by these.
  • a public address system therefore generally has a plurality of loudspeakers which can be controlled or activated by at least one control center.
  • this should also include public address systems which can not only be activated from a single control center, but which may also be controlled and put into operation from several different points.
  • Appropriate methods and devices are well known, e.g. from airports and train stations, department stores and shopping centers, schools, office and conference buildings.
  • the conventional public address systems are relatively complex since they normally require complete cabling from one or more control centers, which must cover all loudspeakers. If, in addition, individual loudspeakers or loudspeaker groups are to be addressed separately from the other loudspeakers, additional control lines are required to selectively switch individual loudspeakers on or off so that an announcement is only output via part of the loudspeakers of the entire system, e.g. if this announcement is only made for a limited number of people who are in the area concerned. This is e.g. known from the individual platforms of train stations, where announcements relating to a train entering or leaving a certain platform are only made via the loudspeakers arranged along this platform.
  • the object of the present invention is to provide a method and a device for operating such a public address system, which have a considerably lower outlay in terms of apparatus and at the same time also offer simpler and less complex options for comparing the sound output Control ambient noise better.
  • this object is achieved in that the signals emanating from the signal source are digitized and transmitted via a digital network to the interfaces of individual loudspeakers or groups of loudspeakers, evaluated, converted back into analog signals and via the corresponding one or more Speakers are output.
  • Digital networks e.g. Parts of the telephone network, the Internet, so-called “intranets” and also smaller local networks, such as the ethernet have become almost ubiquitous in the meantime, so that in many cases one can fall back on existing networks if a suitable sound system is to be installed.
  • the PA system can be combined with the construction of corresponding digital networks that also serve purposes other than PA.
  • an interface should be assigned to each individual loudspeaker or also to a group of loudspeakers, at which the digitized data is recorded, optionally evaluated and converted back into analog signals, which are then transmitted via the loudspeaker in question be issued.
  • the digitized data preferably also contain digital control signals, by evaluating the decentralized loudspeakers or loudspeaker groups in a desired manner.
  • control center does not have to be a single, central point, but that such a control center can be arranged at any point in this network due to the known properties of digital networks, and in particular that several different control centers in this digital one Network may be present, and of course coordination between these different control centers may have to take place in order to avoid the simultaneous output of signals from different control centers via the same loudspeakers.
  • IP Internet Protocol
  • control signals can e.g. Contain information about volume and frequency-dependent amplification functions.
  • the loudspeakers in question are preferably active loudspeakers which have their own power supply, amplification and control system, that is to say independent of the control center.
  • the intelligent interfaces expediently not only have an evaluation logic by means of which the control data contained in the digitized data are evaluated and implemented, but which are also capable of independently controlling the sound signals output. For example, the ambient noise occurring in the immediate vicinity of a loudspeaker or a loudspeaker group is recorded, digitized and directly in a microprocessor of the respective interface e.g. are processed in such a way that additional signals are superimposed on the sound signals to be output, e.g. sound signals that are inverse to the ambient noise.
  • Corresponding feedback signals which are obtained, for example, from microphones or sound pressure meters in the vicinity of a loudspeaker or a loudspeaker group, can of course also be sent back to a control center via the digital network after digitization, which then derives the necessary control information and the volume based on the Adjust feedback signal or can also add inverse signals to ambient noise.
  • a control center via the digital network after digitization, which then derives the necessary control information and the volume based on the Adjust feedback signal or can also add inverse signals to ambient noise.
  • Such a central solution is quite feasible for smaller networks, but the decentralized solution is preferable for larger networks.
  • MP-3 or H323 standard is expediently used for the digitized data. These standards are common and proven for the compression and transmission of digitized sound data and enable fast transmission without delay and with high quality.
  • FIG. 1 shows a diagram of a public address system that is controlled via a digital network and
  • FIG. 2 shows a schematic detailed view of a loudspeaker with an associated one
  • a control center can also be seen in FIG. 1, which is also referred to as a sound network management system (SNMS).
  • SNMS sound network management system
  • This control center is equipped with a control unit that enables targeted control of specific loudspeakers or loudspeaker groups using hardware and software.
  • This control center 5 is connected to a network 3 via an interface 6, the network 3 e.g. can be the internet or an intranet.
  • the network 3 e.g. can be the internet or an intranet.
  • With 4 is a local network, e.g. an ethernet.
  • the control center 5 can also be connected directly to the Ethernet 4 or that the individual loudspeakers 1 or their interfaces 2 can also be connected directly to the Internet or intranet 3.
  • a number of loudspeakers 1 can be seen in FIG. 1, each of these loudspeakers 1 also being able to stand for a whole group of loudspeakers.
  • An interface 2 is assigned to each loudspeaker or each loudspeaker group, which in turn has an individual IP address.
  • Sound signals for example an announcement via a microphone 12, originating from the control center 5 are digitized and forwarded via the interface 6 into the network 3 and from there into the network 4.
  • This data which is compressed and digitized according to the MP-3 standard, for example, also contains address information by means of which individual speakers or speaker groups 1 are addressed in a targeted manner.
  • the data transmitted on the network 4 are recorded in the intelligent interface 2 and the interface 2 checks whether the address information contained in this data means that the loudspeaker 1 assigned to it or the corresponding group of loudspeakers 1 should output these signals. If this is the case, the digitized data are converted into analog data by the interface and output via the loudspeaker 1, whereby in the digitized Data may contain other control signals, for example via the volume and timbre.
  • the individual loudspeakers or loudspeaker groups 1 are therefore preferably active loudspeakers or else as a group they have a common amplifier which processes the analog data in accordance with the control signals.
  • Each of the interfaces 2 expediently also contains a processor, as can be seen more clearly in FIG. In FIG.
  • the intelligent interface 2 assigned to a loudspeaker 1 is enlarged again and shown with more details.
  • the interface 2 initially contains an Ethemet interface 11, on the assumption that the network in question, to which the individual loudspeakers 1 are coupled here, is an Ethernet.
  • the data received via the Ethernet or a corresponding input are further processed in a processor 10, that is to say primarily separated according to pure sound data and control data.
  • the sound data are forwarded to a digital / analog converter 7 and are then output by the loudspeaker 1 after appropriate amplification.
  • a corresponding amplifier and its control by processor 10 are not shown.
  • a microphone 8 and a Db meter 9 are additionally provided at the interface 2, which e.g. Record ambient noise or the sound pressure coming from the speakers.
  • the output signals from microphone 8 and Db meter 9 are or are preferably also digitized and are either processed by processor 10 or are routed back to control center 5 via the network.
  • the processor preferably processes this data itself, e.g. Analyzes ambient noises picked up by the microphone 8 and then superimposes additional signals on the sound signals output via the digital / analog converter, which signals correspond to the inverse of the ambient noises picked up by the microphone 8. In this way, ambient noise is suppressed and the desired sound signals emanating from the loudspeaker 1 are easier to understand.
  • the volume of the loudspeaker 1 can be controlled via the signals measured with the aid of the Db meter 9.
  • the use of the MP-3 or H323 standard has the advantage that the sound signals are transmitted and transmitted with practically no time delay and in very good speech or sound quality.
  • system according to the invention can also be applied to other areas, e.g. Video surveillance systems, fire alarm systems, etc. can be transmitted.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Circuit For Audible Band Transducer (AREA)

Abstract

La présente invention concerne un procédé et un dispositif permettant de faire fonctionner des systèmes de sonorisation, selon lesquels des signaux provenant d'une source de signal analogique sont amplifiés et transmis aux haut-parleurs individuels d'un système de sonorisation, puis émis par ceux-ci. L'objectif de l'invention est de créer un procédé et un dispositif pour faire fonctionner un système de sonorisation de ce type qui permettent de réduire considérablement les coûts de matériel tout en offrant des possibilités simplifiées et moins coûteuses de contrôler plus efficacement le son émis, y compris dans des conditions de bruit ambiant. A cet effet, les signaux provenant de la source de signal (5) sont numérisés et transmis, par l'intermédiaire d'un réseau numérique (3, 4), à des interfaces (2) de haut-parleurs individuels (1) ou de groupes de haut-parleurs (1), ils sont ensuite analysés, convertis à nouveau en signaux analogiques, puis émis par le ou les haut-parleurs (1).
PCT/DE2002/000733 2001-03-17 2002-02-28 Procede et dispositif pour faire fonctionner un systeme de sonorisation WO2002076149A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP02719647A EP1371264A1 (fr) 2001-03-17 2002-02-28 Procede et dispositif pour faire fonctionner un systeme de sonorisation

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10113088.0 2001-03-17
DE2001113088 DE10113088A1 (de) 2001-03-17 2001-03-17 Verfahren und Vorrichtung zum Betrieb eines Beschallungssystems

Publications (1)

Publication Number Publication Date
WO2002076149A1 true WO2002076149A1 (fr) 2002-09-26

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EP (1) EP1371264A1 (fr)
DE (1) DE10113088A1 (fr)
WO (1) WO2002076149A1 (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004043032A2 (fr) * 2002-11-06 2004-05-21 Barix Ag Procede et dispositif pour restituer des flux de donnees de maniere synchronisee
WO2005091778A2 (fr) 2004-03-12 2005-10-06 Honeywell International, Inc. Systeme de teleappel general et d'urgence facilite par internet
EP1808853A1 (fr) 2006-01-13 2007-07-18 Robert Bosch Gmbh Dispositif et procédé pour améliorer l'intelligibilité d'un système de sonorisation, et programme informatique
EP1834505A2 (fr) * 2004-12-26 2007-09-19 Creative Audio Pty Ltd Systeme de radiomessagerie perfectionne
WO2007140178A2 (fr) * 2006-05-23 2007-12-06 Symbol Technologies, Inc. Système et procédé pour transmission d'annonce
WO2009025705A1 (fr) * 2007-08-16 2009-02-26 Thomson Licensing Processeur audio de réseau
EP1788844A3 (fr) * 2005-11-16 2016-04-20 Robert Bosch Gmbh Installation de sonorisation, procédé de génération de images sonores à effet spatial et logiciel
EP3198721A4 (fr) * 2014-09-23 2018-05-30 Denton, Levaughn Procédé et appareil d'ajustement audio à base de grappe mobile

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10340104B4 (de) * 2003-08-30 2005-12-22 Klotz Digital Ag Verfahren und System zur effizienten Übertragung der Leistung bei der Beschallung von Räumen
DE102004037856B4 (de) * 2004-08-04 2006-05-04 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Sprachkonferenzvorrichtung, Sprachkonferenzsystem und Verfahren zur Realisierung einer Sprachkonferenz
DE102004045942A1 (de) * 2004-09-22 2006-04-06 Siemens Ag Anschlussmodul für einen Schallwandler und Verfahren zum Betrieb einer Beschallungsanlage

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GB2123193A (en) * 1982-06-19 1984-01-25 James Ernest Gleave Public address system
US4630304A (en) * 1985-07-01 1986-12-16 Motorola, Inc. Automatic background noise estimator for a noise suppression system
US5406634A (en) * 1993-03-16 1995-04-11 Peak Audio, Inc. Intelligent speaker unit for speaker system network
US6091826A (en) * 1995-03-17 2000-07-18 Farm Film Oy Method for implementing a sound reproduction system for a large space, and a sound reproduction system

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JP2972431B2 (ja) * 1992-01-29 1999-11-08 株式会社河合楽器製作所 音響発生装置
GB2276796B (en) * 1993-04-01 1997-12-10 Sony Corp Audio data communications

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2123193A (en) * 1982-06-19 1984-01-25 James Ernest Gleave Public address system
US4630304A (en) * 1985-07-01 1986-12-16 Motorola, Inc. Automatic background noise estimator for a noise suppression system
US5406634A (en) * 1993-03-16 1995-04-11 Peak Audio, Inc. Intelligent speaker unit for speaker system network
US6091826A (en) * 1995-03-17 2000-07-18 Farm Film Oy Method for implementing a sound reproduction system for a large space, and a sound reproduction system

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH704101B1 (de) * 2002-11-06 2012-05-31 Barix Ag Verfahren und Vorrichtung zur synchronisierten Wiedergabe von Datenströmen.
WO2004043032A3 (fr) * 2002-11-06 2004-08-05 Barix Ag Procede et dispositif pour restituer des flux de donnees de maniere synchronisee
WO2004043032A2 (fr) * 2002-11-06 2004-05-21 Barix Ag Procede et dispositif pour restituer des flux de donnees de maniere synchronisee
US7710941B2 (en) 2002-11-06 2010-05-04 Barix Ag Method and device for the synchronised restitution of data flows
WO2005091778A2 (fr) 2004-03-12 2005-10-06 Honeywell International, Inc. Systeme de teleappel general et d'urgence facilite par internet
EP1726150A2 (fr) * 2004-03-12 2006-11-29 Honeywell International, Inc. Systeme de teleappel general et d'urgence facilite par internet
EP1726150A4 (fr) * 2004-03-12 2012-12-26 Honeywell Int Inc Systeme de teleappel general et d'urgence facilite par internet
EP1834505A2 (fr) * 2004-12-26 2007-09-19 Creative Audio Pty Ltd Systeme de radiomessagerie perfectionne
US8599724B2 (en) 2004-12-26 2013-12-03 Creative Audio Pty. Ltd. Paging system
EP1834505A4 (fr) * 2004-12-26 2011-01-12 Biamp Systems Pty Ltd Systeme de radiomessagerie perfectionne
EP1788844A3 (fr) * 2005-11-16 2016-04-20 Robert Bosch Gmbh Installation de sonorisation, procédé de génération de images sonores à effet spatial et logiciel
EP1808853A1 (fr) 2006-01-13 2007-07-18 Robert Bosch Gmbh Dispositif et procédé pour améliorer l'intelligibilité d'un système de sonorisation, et programme informatique
WO2007140178A3 (fr) * 2006-05-23 2008-01-31 Symbol Technologies Inc Système et procédé pour transmission d'annonce
WO2007140178A2 (fr) * 2006-05-23 2007-12-06 Symbol Technologies, Inc. Système et procédé pour transmission d'annonce
WO2009025705A1 (fr) * 2007-08-16 2009-02-26 Thomson Licensing Processeur audio de réseau
US8755532B2 (en) 2007-08-16 2014-06-17 Thomson Licensing Network audio processor
EP3198721A4 (fr) * 2014-09-23 2018-05-30 Denton, Levaughn Procédé et appareil d'ajustement audio à base de grappe mobile
EP4054211A1 (fr) * 2014-09-23 2022-09-07 Denton, Levaughn Procédé et appareil d'ajustement audio à base de grappe mobile

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Publication number Publication date
DE10113088A1 (de) 2002-09-26
EP1371264A1 (fr) 2003-12-17

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