EP0886456A2 - Méthode et appareil de fonctionnement d'un système de sonorisation - Google Patents

Méthode et appareil de fonctionnement d'un système de sonorisation Download PDF

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Publication number
EP0886456A2
EP0886456A2 EP98108014A EP98108014A EP0886456A2 EP 0886456 A2 EP0886456 A2 EP 0886456A2 EP 98108014 A EP98108014 A EP 98108014A EP 98108014 A EP98108014 A EP 98108014A EP 0886456 A2 EP0886456 A2 EP 0886456A2
Authority
EP
European Patent Office
Prior art keywords
loudspeaker box
amplifier
data
loudspeaker
parameters
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
Application number
EP98108014A
Other languages
German (de)
English (en)
Other versions
EP0886456B1 (fr
EP0886456A3 (fr
Inventor
Andreas Mietling
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
D&B Audiotechnik AG
Original Assignee
D&B Audiotechnik AG
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 D&B Audiotechnik AG filed Critical D&B Audiotechnik AG
Priority to DK98108014T priority Critical patent/DK0886456T3/da
Publication of EP0886456A2 publication Critical patent/EP0886456A2/fr
Publication of EP0886456A3 publication Critical patent/EP0886456A3/fr
Application granted granted Critical
Publication of EP0886456B1 publication Critical patent/EP0886456B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; 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; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers
    • H04R3/04—Circuits for transducers for correcting frequency response
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R2420/00—Details of connection covered by H04R, not provided for in its groups
    • H04R2420/05—Detection of connection of loudspeakers or headphones to amplifiers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R2420/00—Details of connection covered by H04R, not provided for in its groups
    • H04R2420/07—Applications of wireless loudspeakers or wireless microphones
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R29/00—Monitoring arrangements; Testing arrangements
    • H04R29/007—Monitoring arrangements; Testing arrangements for public address systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R5/00—Stereophonic arrangements
    • H04R5/02—Spatial or constructional arrangements of loudspeakers

Definitions

  • the invention relates to a method for operating a sound system with at least one loudspeaker box and with at least one amplifier, the via a preferably detachable cable connection is connected to the speaker box.
  • the invention is therefore based on the object Method of operating a mobile or fixed Public address system to indicate that despite different Combinations of amplifiers and speakers always to an optimized system leads without complex measures being taken have to.
  • this object is achieved by that the amplifier in a first step Data on acoustic and / or electrical Loudspeaker parameters by query the speaker box receives and that then, in one second process step, taking the amplifier into account the data or parameters independently for operation with the connected loudspeaker box is configured.
  • the invention lies thus based on the principle that - depending on the connected Loudspeaker - an independent configuration takes place, that is, through the automatic ongoing parameterization become the properties the sound system preferably in electrical as well as in the electro-acoustic area optimized in such a way that the best possible results are achieved can be.
  • Under "amplifier” is in the above Meaning to understand a device that is not only enables reinforcement, but by means of a signal processing electronics on the transmission behavior Can influence.
  • the configuration was optimized in terms of Transmission behavior, in particular in terms of frequency response and phase response, is made.
  • the speakers data supplied by the amplifier evaluated with regard to an optimized frequency response and then the amplifier through the Means familiar to those skilled in the art on the parameters the speaker box adjusted so that each desired frequency response is achieved.
  • the configuration in terms of resilience. If, for example, a loudspeaker is on the amplifier is connected, which is only a limited Resilience, that is, if for example, there is a risk that the very powerful amplifiers to damage or destruction of the loudspeaker box with the corresponding Can lead to output power, so the Configuration take place in such a way that the operation of the Loudspeaker only up to a limit load takes place, which excludes damage.
  • the configuration is dependent of itself in the course of aging of the loudspeaker box changing properties and / or individual properties the speaker box takes place.
  • a time-dependent Configuration before, that is, it will Connection of the loudspeaker box to the amplifier the cable connection will transfer data to the Age or on the operating time of the Give information to the loudspeaker box.
  • the parameters for example the sound behavior of the loudspeaker can change in the course of aging thus about the configuration of the amplifier Compensation.
  • parameters are Changes in acoustic reproduction properties, the electrical properties and / or the magnetic properties.
  • the configuration checks whether a Operation with several loudspeakers is possible is. If so, so the amplifier receives corresponding data, for example that two speakers are alike or different types in parallel on the Amplifiers are connected. The amplifier checks now based on the data transmitted to him whether this parallel connection of the two boxes possible is, that is, whether an operation can take place without that the amplifier itself or the speakers are at risk and whether the operation is flawless electrical / electroacoustic results leads. The same applies to a series connection of two or more loudspeakers. The In such a case, the amplifier is only by manually entering whether it is a parallel connection or a series connection or around is a mixed circuit, for example the parallel connection of two boxes to which one third box in a row.
  • the invention further relates to a device for Operation of a sound system that at least has a loudspeaker box and an amplifier, the via a detachable cable connection to the speaker box is connected, the amplifier assigned an electrical configuration circuit is that of the speaker data about your acoustic and / or electrical parameters are supplied by means of the cable connection, and that the configuration circuit the PA system taking into account the data or parameters automatically for operation with the connected Loudspeaker configured.
  • the configuration circuit can be part of the amplifier be a special assembly of the amplifier or it is possible that this configuration circuit executed as a separate circuit and in the same housing of the amplifier or is housed in an additional housing.
  • the Configuration circuit is capable of evaluate incoming data from the loudspeaker and corresponding influence on the amplifier and / or a signal processing electronics, which is also part of the amplifier can but must not exercise in electrical engineering terms, so that the mentioned optimization of the sound system becomes possible.
  • the cable connection has a speaker cable and a data cable.
  • the low frequency cable is therefore used for control the speaker is electrically isolated from the data cable. This doesn't mean two separate ones Cables are to be laid, but it is quite also possible that the electrical conductor of speaker wire and data cables from a common Coat are surrounded.
  • the cable connection is a speaker cable over which the data is also transmitted will.
  • for data transmission uses the same electrical cables which are also used to control the speaker.
  • a time sharing operation was carried out, that is, it is configured at a time if no control data for the speaker be transferred and vice versa.
  • the electromechanical or can also be electronic in nature can this required switching, namely from the operation of the speaker to the sound system Operation to transfer the data or vice versa make.
  • the data can be electrical or optical Cable (the latter is called fiber) or transmitted wirelessly.
  • a wireless Transmission is particularly suitable for infrared, Radio or ultrasound transmission.
  • the loudspeaker box has an electrical storage unit which Provides data.
  • the storage unit contains information about the characteristics of the loudspeaker, about the type of speaker, about the Serial number of the loudspeaker box, over the operating hours the speaker box, about electrotechnical and / or acoustic parameters of the Loudspeaker and / or via possible service comments and so on, the operator's instructions can give to the operation of the speaker box.
  • the above list is not complete, but other data can also be stored in the be stored.
  • the memory content is speaker-specific Has information that - after Query by the amplifier or by the configuration circuit - cause the Configuration can be done so the amplifier on the connected loudspeaker box is voted.
  • the amplifier can preferably designed as a power amplifier be. Additionally or alternatively, it is also possible that an audio processor is assigned to it.
  • FIG. 1 shows a schematic representation of one Amplifier 1, which acts as a power amplifier 2 is formed, and a configuration circuit 3 is assigned.
  • a speaker box referred to, the an identification unit 5th assigned, which is from a storage unit 6 is formed.
  • the loudspeaker box 4 is connected to the amplifier 1, wherein the cable connection 7 from a speaker cable 8 and a data transmission link 9 exists. It can be seen from the direction of the arrow that corresponding to the operation of the speaker box 4 Signals from amplifier 1 to the loudspeaker box 4 are transmitted.
  • the data link 9 is provided with double arrows, pointing to it indicates that a data exchange has been made this data exchange is between the configuration circuit 3 and the storage unit 6 before.
  • FIG 2 shows a sound system 10, at the components of the amplifier 1 and the speaker box 4 the above statements on Embodiment of Figure 1 correspond so that only dealt with the cable connection 7 here should be both the electrical signals for operating the loudspeaker box 4 from the amplifier 1 to this loudspeaker 4, as well as the data transmission, thus also forms the data transmission link 9.
  • the mode of operation of the sound system 10 according to FIG 2 is discussed in more detail below.
  • FIG. 3 shows a further embodiment a sound system 10, in which the amplifier 1 several speakers 4 are assigned, where exemplary two speakers 4 in the Figure 3 are shown. Basically, however, it is also possible that more than two speakers 4 can be assigned to amplifier 1.
  • Each Loudspeaker box 4 has an identification unit 5, which is designed as a storage unit 6. Because of the cable connection shown in FIG. 3 7 it is clear that the two speakers 4 in parallel on the amplifier 1 operated.
  • the amplifier 1 turned on, over the data link a supply voltage of the identification unit 5 is supplied. So is included the data transmission path 9 is not a pure data transmission before, but in the present one In addition to connections for data transmission electrical supply lines are also provided. Then there is a waiting operation, the means that the identification unit 5 is ready to receive and waits for a communication request through the configuration circuit 3 of the power amplifier 2. The power amplifier 2 then sets a communication request that - via the Data transmission path 9- from the identification unit 6 is received. This communication request involves asking certain to send requested data. To that extent in a further step, the storage unit read out with regard to the requested data, that is, the identification unit 5 transmits the data transmission path 9 the requested Configuration circuit data 3.
  • This transmission can run in multiple cycles, that is, then on a specific request Answer or it is possible to start with several Send requests and it will be the Transfer answers together.
  • Has the configuration circuit 3 receive the desired data see above there is knowledge of the parameters of the Loudspeaker before, so that then by means of the configuration circuit 3 Influence on the power amplifier 2 can be taken such that its Parameters to the loudspeaker specifically connected here 4 can be coordinated so that a desired optimization, for example in electrical and / or in terms of sound technology.
  • the embodiment of Figure 3 indicates parallel operation two speakers. Will this Parallel operation detected - this is described below the configuration circuit checks 3 of the power amplifier 2, whether a parallel operation of these two speakers 4 can be done on this amplifier 1 without it damage to amplifier 1 and / or loudspeakers 4 comes and if so whether present "team" the electroacoustic Can meet requirements. This question should be positive will be decided, the operation will be after implementation of the configuration. If the check shows that parallel operation does not appear advisable, this leads to the configuration circuit 3 to a corresponding one Signal that blocks the operation of amplifier 1. In this way there will be harm or electro-acoustically incorrect results avoided.
  • FIG. 4 illustrates what has been said above of a flow chart. Switching on takes place in field 11 of the amplifier 1.
  • the field 12 clarifies that from amplifier 1 of the identification unit 5 the loudspeaker 4 a supply voltage is fed.
  • the field 13 shows that the Identification unit 5 is in stand-by mode, that is, it is waiting for a communication request through the configuration circuit 3.
  • the Field 14 corresponds to the measure that communication takes place, that is, the identification unit 5 the communication request of the Configuration circuit 3 receives. Then be then - according to field 15 - due to the communication request Data from the storage unit 6 for Transfer configuration circuit 3.
  • the decision field 16 there is a check whether one or whether several speakers 4 connected to the amplifier 1 are.
  • j stands for yes and n for no.
  • field 17 If only one loudspeaker box 4 is connected, processing takes place in accordance with field 17 the corresponding data from the identification unit 5 for configuration circuit 3 were transferred. In field 18 is based on the result the configuration of the received data of the power amplifier 2 made. Is this Configuration takes place, so in field 19 "normal operation" the sound system 10 added, that is, the data transfer is finished and it the loudspeakers are now activated Loudspeaker box 4 using the amplifier 1.
  • field 20 checks whether, for example parallel operation or series operation is possible. Is this possible so it continues with field 17, etc. Exists this possibility due to electrical or electro-acoustic Conditions not, so in field 21 blocking the loudspeaker output of the amplifier Pronounced 1, that is, it is not Operation of this combination of the sound system 10 possible.
  • the invention thus relates to an automatic ongoing parameterization of the parameters of a Public address system, for example with regard to the Transmission behavior of this system.
  • Overall is a sequence control during testing and configuration provided, certain, the speaker box characterizing data from a non-volatile Storage medium, namely the one mentioned above Storage unit 6, read out and over the Data transmission path 9 of the configuration circuit 3 are supplied.
  • a non-volatile Storage medium namely the one mentioned above Storage unit 6, read out and over the Data transmission path 9 of the configuration circuit 3
  • there is an adjustment to different Type classes of power amplifier-audio processor combinations and / or loudspeaker combinations with the data exchange mentioned above transfer different records , for example consisting of type and serial number.
  • the storage unit 6 a type and / or serial number for configuration switching 3 transferred, can be based on data stored in the configuration circuit 3 closed on the parameters of the loudspeaker will.
  • the data sets for parameterization an optimized speaker operation can, for example, also affect the frequency response, on load tables, on DSP programs etc. refer. It is also possible that so-called Logbook entries about the operating data of the Loudspeaker box are transmitted, for example Data of an operating hours counter, the date, the Time, service comments from the loudspeaker etc., with all or part of the data configuration can be used.
  • the data transfer can in particular according to the known serial data transmission topologies as they are also used in computer technology can be found. It is also possible instead wired data transmission perform wireless data transmission, for example via infrared data transmission.
  • the amplifier can be a so-called power amplifier / audio processor combination act where it is the audio processor around a device or a system for linear and / or non-linear audio signal processing acts.
  • linear audio signal processing it is for example one so-called equalizer; in a non-linear audio signal processing can be a so-called limiter available.
  • the supply voltage for the identification unit also from the low frequency signal of the speaker be won. It is also possible to use a battery to use. Furthermore, during speaker operation in particular an identification request cyclically be made to make possible changes the system, for example connecting one additional speaker to be taken into account automatically.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
EP98108014A 1997-06-20 1998-05-02 Méthode et appareil de fonctionnement d'un système de sonorisation Expired - Lifetime EP0886456B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DK98108014T DK0886456T3 (da) 1997-06-20 1998-05-02 Fremgangsmåde og anordning til drift af et höjttaleranlæg

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19726176A DE19726176C1 (de) 1997-06-20 1997-06-20 Verfahren und Vorrichtung zum Betreiben einer Beschallungsanlage
DE19726176 1997-06-20

Publications (3)

Publication Number Publication Date
EP0886456A2 true EP0886456A2 (fr) 1998-12-23
EP0886456A3 EP0886456A3 (fr) 2000-08-16
EP0886456B1 EP0886456B1 (fr) 2004-08-04

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EP98108014A Expired - Lifetime EP0886456B1 (fr) 1997-06-20 1998-05-02 Méthode et appareil de fonctionnement d'un système de sonorisation

Country Status (7)

Country Link
US (1) US6385322B1 (fr)
EP (1) EP0886456B1 (fr)
AT (1) ATE272932T1 (fr)
DE (1) DE19726176C1 (fr)
DK (1) DK0886456T3 (fr)
ES (1) ES2226026T3 (fr)
PT (1) PT886456E (fr)

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WO2009007322A3 (fr) * 2007-07-11 2009-04-09 Austriamicrosystems Ag Dispositif de reproduction et procédé de calibrage d'un dispositif de reproduction
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US7380162B2 (en) 1998-07-28 2008-05-27 Lg Electronics Inc. Method and apparatus of recording data in the optical recording medium
US7441149B2 (en) 1998-07-28 2008-10-21 Lg Electronics Inc. Method and apparatus of recording data in the optical recording medium
US7698599B2 (en) 1998-12-30 2010-04-13 Samsung Electronics Co., Ltd. Recording medium for storing start position information for each zone and method of managing data using the information
US7702961B2 (en) 1998-12-30 2010-04-20 Samsung Electronics Co., Ltd. Recording medium for storing start position information for each zone and method of managing data using the information
EP1511237A3 (fr) * 2003-08-29 2005-10-12 Kabushiki Kaisha Toshiba Unité de communication sans fil et procédé pour établir une connection de communication
WO2009007322A3 (fr) * 2007-07-11 2009-04-09 Austriamicrosystems Ag Dispositif de reproduction et procédé de calibrage d'un dispositif de reproduction
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
US20170164111A1 (en) * 2009-10-22 2017-06-08 Dolby Laboratories Licensing Corporation Digital Communication System for Loudspeakers
US10009688B2 (en) * 2009-10-22 2018-06-26 Dolby Laboratories Licensing Corporation Digital communication system for loudspeakers

Also Published As

Publication number Publication date
EP0886456B1 (fr) 2004-08-04
DK0886456T3 (da) 2004-12-06
PT886456E (pt) 2004-12-31
DE19726176C1 (de) 1999-01-21
ES2226026T3 (es) 2005-03-16
ATE272932T1 (de) 2004-08-15
EP0886456A3 (fr) 2000-08-16
US6385322B1 (en) 2002-05-07

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