EP2546830A2 - Method and device for active noise masking - Google Patents

Method and device for active noise masking Download PDF

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Publication number
EP2546830A2
EP2546830A2 EP12174570A EP12174570A EP2546830A2 EP 2546830 A2 EP2546830 A2 EP 2546830A2 EP 12174570 A EP12174570 A EP 12174570A EP 12174570 A EP12174570 A EP 12174570A EP 2546830 A2 EP2546830 A2 EP 2546830A2
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EP
European Patent Office
Prior art keywords
sound
room
actuators
space
ceiling
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.)
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Application number
EP12174570A
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German (de)
French (fr)
Other versions
EP2546830A3 (en
Inventor
Arndt Steiner
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pinta acoustic GmbH
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pinta acoustic GmbH
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Filing date
Publication date
Application filed by pinta acoustic GmbH filed Critical pinta acoustic GmbH
Publication of EP2546830A2 publication Critical patent/EP2546830A2/en
Publication of EP2546830A3 publication Critical patent/EP2546830A3/en
Withdrawn legal-status Critical Current

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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
    • E04B1/8209—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only sound absorbing devices
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
    • E04B5/02—Load-carrying floor structures formed substantially of prefabricated units
    • E04B5/14—Load-carrying floor structures formed substantially of prefabricated units with beams or girders laid in two directions
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B9/00—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation
    • E04B9/001—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation characterised by provisions for heat or sound insulation
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
    • G10K11/1752—Masking
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
    • G10K11/178—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
    • G10K11/1785—Methods, e.g. algorithms; Devices
    • G10K11/17857—Geometric disposition, e.g. placement of microphones
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
    • G10K11/178—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
    • G10K11/1785—Methods, e.g. algorithms; Devices
    • G10K11/17861—Methods, e.g. algorithms; Devices using additional means for damping sound, e.g. using sound absorbing panels
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
    • G10K11/178—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
    • G10K11/1787—General system configurations
    • G10K11/17873—General system configurations using a reference signal without an error signal, e.g. pure feedforward
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K3/00—Jamming of communication; Counter-measures
    • H04K3/40—Jamming having variable characteristics
    • H04K3/45—Jamming having variable characteristics characterized by including monitoring of the target or target signal, e.g. in reactive jammers or follower jammers for example by means of an alternation of jamming phases and monitoring phases, called "look-through mode"
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K3/00—Jamming of communication; Counter-measures
    • H04K3/80—Jamming or countermeasure characterized by its function
    • H04K3/84—Jamming or countermeasure characterized by its function related to preventing electromagnetic interference in petrol station, hospital, plane or cinema
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
    • E04B1/84—Sound-absorbing elements
    • E04B1/86—Sound-absorbing elements slab-shaped
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B9/00—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation
    • E04B9/006—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation with means for hanging lighting fixtures or other appliances to the framework of the ceiling
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K2210/00—Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups
    • G10K2210/10—Applications
    • G10K2210/12—Rooms, e.g. ANC inside a room, office, concert hall or automobile cabin
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K2210/00—Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups
    • G10K2210/30—Means
    • G10K2210/301—Computational
    • G10K2210/3046—Multiple acoustic inputs, multiple acoustic outputs
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K2210/00—Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups
    • G10K2210/30—Means
    • G10K2210/321—Physical
    • G10K2210/3219—Geometry of the configuration
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K2210/00—Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups
    • G10K2210/30—Means
    • G10K2210/321—Physical
    • G10K2210/3224—Passive absorbers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K2203/00—Jamming of communication; Countermeasures
    • H04K2203/10—Jamming or countermeasure used for a particular application
    • H04K2203/12—Jamming or countermeasure used for a particular application for acoustic communication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K2203/00—Jamming of communication; Countermeasures
    • H04K2203/30—Jamming or countermeasure characterized by the infrastructure components
    • H04K2203/34—Jamming or countermeasure characterized by the infrastructure components involving multiple cooperating jammers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R2227/00—Details of public address [PA] systems covered by H04R27/00 but not provided for in any of its subgroups
    • H04R2227/001—Adaptation of signal processing in PA systems in dependence of presence of noise
    • 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
    • H04R3/12—Circuits for transducers for distributing signals to two or more loudspeakers
    • H04R3/14—Cross-over networks

Definitions

  • the invention initially relates to a method for influencing noise in a room, such as a large office, wherein an active sound suppression and / or sound masking is performed.
  • the invention deals with the technical problem, an active sound suppression or sound masking in a larger space, eg. A large office, make advantageous.
  • a method for active suppression of noise in a room in which it is aimed that a plurality of sound actuators distributed over the surface of the room are provided and in the room further at least one sound sensor is arranged and two or more of the Sound actuators are acted upon differently in terms of sound detected by the sound sensor. It is essential that in the room whose sound image is to be influenced in whole or in part, with regard to detected sound sources, the sound actuators are acted differently to the generation of the counter sound for sound suppression or for generating sound for sound masking.
  • sound sensors in particular microphones are considered. It can be a or multiple microphones distributed throughout the room.
  • the sound actuators may be sound sources such as speakers.
  • a plurality of sound actuators but also a plurality of sound sensors are provided. Both can be provided, preferably evenly distributed in the room.
  • directed sound sensors such as directional microphones, can also be used. Hereby can also be detected a sound situation in an area of the room in which not directly or centrally such a sound sensor is arranged.
  • a sound masking can serve to compensate for a constantly fluctuating noise level in a room, for example a large office, and thereby achieve a higher acoustic comfort. It may be a uniform sound that can not be assigned to any identifiable sound source. This is usually perceived as less disturbing than a structured noise, which is generated approximately in a specific time sequence and / or with a certain frequency spectrum and / or with a certain signal spacing. With the sound masking is to be achieved that even with different occupancy of a large room with people, so for example, the difference between a fully or partially occupied open-plan office, a sound almost the same impression is conveyed. In addition, it can be achieved here that certain conversations taking place in one area of the room can not be identified with respect to the words in a wider area of the room.
  • the embodiments described herein may find particular application in large rooms used by people.
  • open-plan offices but also, for example, in classrooms, financial institutions, for example, a counter room of a bank, hotel rooms, for example, a hotel lobby, etc.
  • a loading of the sound actuators is carried out in accordance with a sound source moving over the surface of the room.
  • a sound source may, for example, be given in the form of a device moving through the room, such as a room care appliance, but also in the form of a group of people moving through the room in which one talks to each other.
  • a related detection of a moving sound source or a moving cluster of sound sources, such as the plurality of persons of said group of people can then be analyzed in a conventional manner with respect to sound values detected by the one or more sound sensors and a corresponding counter sound generated or a additional sound to be superimposed. With the movement of this sound source through the room, this sound can then be "passed on” to other sound actuators, which are arranged distributed in the direction of movement, or approximately in the direction of movement of said sound source, over the space.
  • a specific area of a room can become a discretion zone in which, for example, the sound output is controlled so that conversations conducted in this room area can not be understood outside of this room area.
  • a discretion zone can be formed as wandering through a room with people and / or devices.
  • a person and / or a device can emit detection signals, for example radio signals, by a radio transmitter located on the person or the device or object (this can also be, for example, a smart phone and / or an (entrance) chip card be assigned), and that associated with the control unit for influencing noise, a corresponding radio receiver is provided, which can identify a particular person or a specific object on it and accordingly by means of the control to which these signals are given, this person or this object special counter sound training or a special sound masking is assigned and / or special, possibly with the object or the person wandering, discretion zones are created in the manner described.
  • detection signals for example radio signals
  • detection signals such as radio signals that are emitted by a person or an object
  • these signals additionally or alternatively to control a sound output for the control of Lighting are used.
  • the lighting can be limited to this area, or the lighting can be amplified when certain signals are assigned to certain persons, such as surveillance personnel.
  • the detection of sound via the sound sensor is used as presence control or access control.
  • the detection of sound via the sound sensor is used as presence control or access control.
  • these are arranged on the ceiling side and / or wall side in the room.
  • they are arranged installed in other objects, for example in a so-called ceiling sail or in a wall acoustic part.
  • This may be a sound absorber, which is arranged on the wall or ceiling side in such a room.
  • a ceiling sail or sound absorbers are arranged as such or ceiling or wall elements as such.
  • the formation of such a ceiling sail or sound absorber is, for example.
  • the sound sensor and / or the sound actuator are arranged independently. This means that they are preferably wirelessly, for example via radio, controllable, further that within the ceiling element and a self-sufficient power supply, such as an accumulator, is provided for a sound sensor and / or a sound actuator.
  • the subject matter of the invention is also a sound absorber preferably to be fastened to a ceiling of a room, for example having a foam surface part.
  • a sound absorber preferably to be fastened to a ceiling of a room, for example having a foam surface part.
  • This object is achieved in a sound absorber in which it is geared to having a sound source.
  • the sound absorber preferably has a sound source in the form of a loudspeaker. It may also be a membrane film, which is excited about to produce sound. More preferably, the sound source, which is provided in the sound absorber, controllable in dependence on a detected sound, namely for active sound suppression controllable so that it emits a sound that leads as possible to cancel the noise or leads to the desired superposition of the existing sound field, to mask a local call.
  • the sound absorber comprises a sound sensor, preferably in the form of a microphone.
  • a sound output of the sound source can be carried out as a function of a sound source which may be provided movably in the room.
  • a schematic space 1 in the wall and / or ceiling side sound absorber 2 are arranged (in the embodiment, only wall-side sound absorber 2 are shown).
  • It is preferably a foam sound absorber, as already explained above.
  • a sound absorber consists in a simple case of a self-supporting Schallabsorberteil which is mounted on the ceiling or wall side via mounting rods or fasteners.
  • it can be a foam part, preferably a melamine resin foam base, which is accommodated in a frame part surrounding this edge, wherein attachment to the ceiling and / or the wall preferably takes place via the frame part.
  • sound actuators 3 and / or sound sensors 4 are provided.
  • an accumulator 5 is provided in or assigned to the sound absorber 2, for the power supply of the sound actuator 3 and / or the sound sensor 4.
  • an immediate power supply may be provided, in particular if the sound absorber 2, as known in principle, at the same time also equipped with light units that require a power supply anyway.
  • FIG. 2 is a schematic perspective view of a room 1 reproduced, in the ceiling side, the sound absorber 2 with the sound actuators 3 and / or the sound sensors 4 are arranged.
  • the particular sound determined via the sound sensors 4 is analyzed in a computer unit, as shown in detail, and then, as it were, a counter sound or sound masking sound is generated via the sound actuators 3, which in the case of the counter sound is preferably complete, or at least essentially directed to a considerable extent so in opposite directions, that cancel the sound and the counter-sound against each other.
  • one or more of the sound sensors 4 can also detect a wandering of a sound source through such a room, and a corresponding counter sound or masking sound can be "transferred” from one sound actuator 3 to another.
  • individual discretion zones as already explained in more detail above, can be formed and possibly also provided “wandering”.
  • the sound absorbers 2 or specifically corresponding ceiling canopies are preferably provided in such a way that about 20 to 60% of the ceiling and / or wall surface, preferably about 40% of the ceiling and / or wall surface, of which are covered in a projection on the ceiling or wall surface.
  • the accumulators 5 are preferably provided so that they are maintenance-free over a very long period of time, maintenance-free for about 1 to 2 years. It can also be provided that the state of charge of a rechargeable battery 5 is transmitted by radio or WLAN and can be interrogated.
  • the sound accumulators and / or the sound sensors in a frequency range of about 100 Hz to 2 kHz, more preferably from 125 Hz to 1 kHz, work.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Architecture (AREA)
  • Multimedia (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Public Health (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Building Environments (AREA)

Abstract

The method involves providing multiple sound actuators (3) i.e. speakers, distributed over a surface area of a space (1), and providing sound sensors (4) i.e. microphones, arranged in the space, where the sound actuators or the sound sensors are arranged in a ceiling or a wall of the space. The sound actuators are actuated in response to sound values detected by the sound sensors, with respect to a desired sound-related space division, or with respect to person signals or object signals, which are detected by the sound sensors. An independent claim is also included for a device for influencing noise in a space.

Description

Die Erfindung betrifft zunächst ein Verfahren zur Geräuschbeeinflussung in einem Raum, wie beispielsweise einem Großraumbüro, wobei eine aktive Schallunterdrückung und/oder eine Schallmaskierung vorgenommen wird.The invention initially relates to a method for influencing noise in a room, such as a large office, wherein an active sound suppression and / or sound masking is performed.

Derartige Verfahren sind bereits in verschiedener Hinsicht bekannt geworden. Es wird mit einer Schallquelle gearbeitet, die im Hinblick auf eine störende Schallquelle so eingestellt wird, dass sich die Schallwellen möglichst gegeneinander auslöschen. Zum Stand der Technik ist etwa auf die US 7 272 234 A zu verweisen.Such methods have already become known in various respects. It is worked with a sound source, which is adjusted with regard to a disturbing sound source so that the sound waves extinguish as possible against each other. The state of the art is about on the US Pat. No. 7,272,234 A to refer.

Die Erfindung beschäftigt sich mit der technischen Problematik, eine aktive Schallunterdrückung bzw. Schallmaskierung in einem größeren Raum, bspw. einem Großraumbüro, vorteilhaft vorzunehmen.The invention deals with the technical problem, an active sound suppression or sound masking in a larger space, eg. A large office, make advantageous.

Zur Lösung der Aufgabe ist zunächst ein Verfahren zur aktiven Schallunterdrückung in einem Raum angegeben, bei welchem darauf abgestellt ist, dass eine Mehrzahl von Schallaktoren über die Fläche des Raumes verteilt vorgesehen werden und in dem Raum weiter mindestens ein Schallsensor angeordnet wird und zwei oder mehr der Schallaktoren im Hinblick auf von dem Schallsensor erfasste Schallwerte unterschiedlich beaufschlagt werden. Wesentlich ist, dass in dem Raum, dessen Geräuschbild insgesamt oder teilweise beeinflusst werden soll, im Hinblick auf erfasste Schallquellen die Schallaktoren unterschiedlich zur Erzeugung des Gegenschalls zur Schallunterdrückung oder zur Erzeugung von Schall zur Schallmaskierung beaufschlagt werden. Als Schallsensoren kommen insbesondere Mikrophone in Betracht. Es kann sich um ein oder mehrere Mikrophone, die in dem Raum verteilt angeordnet sind, handeln. Die Schallaktoren können Schallquellen wie etwa Lautsprecher sein.To solve the problem, a method for active suppression of noise in a room is given, in which it is aimed that a plurality of sound actuators distributed over the surface of the room are provided and in the room further at least one sound sensor is arranged and two or more of the Sound actuators are acted upon differently in terms of sound detected by the sound sensor. It is essential that in the room whose sound image is to be influenced in whole or in part, with regard to detected sound sources, the sound actuators are acted differently to the generation of the counter sound for sound suppression or for generating sound for sound masking. As sound sensors in particular microphones are considered. It can be a or multiple microphones distributed throughout the room. The sound actuators may be sound sources such as speakers.

Es ist bevorzugt, dass nicht nur eine Mehrzahl von Schallaktoren, sondern auch eine Mehrzahl von Schallsensoren vorgesehen sind. Beide können, bevorzugt gleichmäßig, in dem Raum verteilt vorgesehen sein. Hinsichtlich der Schallsensoren können auch gerichtete Schallsensoren, wie Richtmikrophone, zum Einsatz kommen. Hiermit kann ersichtlich auch eine Schallsituation in einem Bereich des Raumes erfasst werden, in dem nicht unmittelbar oder zentral ein solcher Schallsensor angeordnet ist.It is preferable that not only a plurality of sound actuators but also a plurality of sound sensors are provided. Both can be provided, preferably evenly distributed in the room. With regard to the sound sensors, directed sound sensors, such as directional microphones, can also be used. Hereby can also be detected a sound situation in an area of the room in which not directly or centrally such a sound sensor is arranged.

Eine Schallmaskierung kann dazu dienen, einen ständig schwankenden Geräuschpegel in einem Raum, beispielsweise einem Großraumbüro auszugleichen und dadurch eine höhere akustische Annehmlichkeit zu erreichen. Es kann sich um ein gleichförmiges, keiner identifizierbaren Schallquelle zuordbares Geräusch handeln. Dieses wird in der Regel als weniger störend empfunden als ein strukturiertes Geräusch, das etwa in bestimmter zeitlicher Abfolge und/oder mit bestimmtem Frequenzspektrum und/oder mit bestimmtem Signalabstand erzeugt wird. Mit der Schallmaskierung soll erreicht werden, dass auch bei unterschiedlicher Belegung eines großen Raumes mit Personen, also beispielsweise der Unterschiedlichkeit zwischen einem vollständig oder nur teilweise besetzten Großraumbüro, ein schallmäßig annähernd gleicher Eindruck vermittelt wird. Zudem kann hiermit erreicht werden, dass gewisse Gespräche, die in einem Bereich des Raumes stattfinden, in einem weiteren Bereich des Raumes nicht hinsichtlich der Worte identifiziert werden können.A sound masking can serve to compensate for a constantly fluctuating noise level in a room, for example a large office, and thereby achieve a higher acoustic comfort. It may be a uniform sound that can not be assigned to any identifiable sound source. This is usually perceived as less disturbing than a structured noise, which is generated approximately in a specific time sequence and / or with a certain frequency spectrum and / or with a certain signal spacing. With the sound masking is to be achieved that even with different occupancy of a large room with people, so for example, the difference between a fully or partially occupied open-plan office, a sound almost the same impression is conveyed. In addition, it can be achieved here that certain conversations taking place in one area of the room can not be identified with respect to the words in a wider area of the room.

Die hier beschriebenen Ausgestaltungen können insbesondere Anwendung finden in großen, von Menschen genutzten Räumen. Beispielsweise in den schon erwähnten Großraumbüros, aber auch bspw. in Schulräumen, Geldinstituten, bspw. einem Schalterraum einer Bank, Hotelräumen, bspw. einer Hotel-Lobby, etc.The embodiments described herein may find particular application in large rooms used by people. For example, in the already mentioned open-plan offices, but also, for example, in classrooms, financial institutions, for example, a counter room of a bank, hotel rooms, for example, a hotel lobby, etc.

In weiterer Ausgestaltung ist auch bevorzugt, dass eine Beaufschlagung der Schallaktoren entsprechend einer sich über die Fläche des Raumes bewegenden Schallquelle vorgenommen wird. Eine solche Schallquelle kann bspw. in Gestalt eines sich durch den Raum bewegenden Gerätes, wie etwa eines Raumpflegegerätes, gegeben sein, aber auch in Gestalt einer sich durch den Raum bewegenden Personengruppe, in der miteinander gesprochen wird. Eine diesbezügliche Erfassung einer sich bewegenden Schallquelle oder einer sich bewegenden Häufung von Schallquellen, wie etwa die mehreren Personen der genannten Personengruppe, kann dann in üblicher Weise im Hinblick auf von dem einen oder mehreren Schallsensoren erfassten Schallwerte analysiert werden und ein entsprechender Gegenschall erzeugt werden oder ein zusätzlicher Schall überlagert werden. Dieser Schall kann dann mit dem Bewegen dieser Schallquelle durch den Raum gleichsam "übergeben" werden an weitere Schallaktoren, die in Bewegungsrichtung, oder annähernd in Bewegungsrichtung der genannten Schallquelle, über den Raum verteilt angeordnet sind.In a further embodiment, it is also preferred that a loading of the sound actuators is carried out in accordance with a sound source moving over the surface of the room. Such a sound source may, for example, be given in the form of a device moving through the room, such as a room care appliance, but also in the form of a group of people moving through the room in which one talks to each other. A related detection of a moving sound source or a moving cluster of sound sources, such as the plurality of persons of said group of people, can then be analyzed in a conventional manner with respect to sound values detected by the one or more sound sensors and a corresponding counter sound generated or a additional sound to be superimposed. With the movement of this sound source through the room, this sound can then be "passed on" to other sound actuators, which are arranged distributed in the direction of movement, or approximately in the direction of movement of said sound source, over the space.

Auch kann durch gezielte Schallabgabe über einzelne Schallaktoren ein bestimmter Bereich eines Raumes zur Diskretionszone werden, in dem dort beispielsweise die Schallabgabe so gesteuert wird, dass in diesem Raumbereich geführte Gespräche nicht außerhalb dieses Raumbereiches verständlich sind. Insbesondere kann auch eine solche Diskretionszone als mit Personen und/oder Geräten wandernd durch einen Raum ausgebildet werden.Also, through specific sound output via individual sound actuators, a specific area of a room can become a discretion zone in which, for example, the sound output is controlled so that conversations conducted in this room area can not be understood outside of this room area. In particular, such a discretion zone can be formed as wandering through a room with people and / or devices.

Es ist auch möglich, dass eine Person und/oder ein Gerät Erkennungssignale, etwa Funksignale abgibt, die durch einen an der Person oder dem Gerät bzw. Gegenstand befindlichen Funksender (dies kann auch beispielsweise ein Smart Phone und/oder eine (Eintritts-) Chipkarte sein) abgegeben werden, und dass zugeordnet der Steuereinheit zur Geräuschbeeinflussung ein entsprechender Funkempfänger vorgesehen ist, der eine bestimmte Person oder einen bestimmten Gegenstand hierüber identifizieren kann und entsprechend vermittels der Steuerung, an welche diese Signale gegeben werden, dieser Person oder diesem Gegenstand besondere Gegenschallausbildungen oder eine besondere Schallmaskierung zugeordnet wird und/oder besondere, ggf. mit dem Gegenstand oder der Person wandernde, Diskretionszonen in der beschriebenen Weise geschaffen werden. Im Hinblick auf die ohnehin vorgesehene Steuerung für die Schallaktoren und die mögliche, beschriebene Erfassung von Erkennungssignalen, etwa Funksignalen, die von einer Person oder einem Gegenstand abgegeben werden, kann auch vorgesehen sein, dass diese Signale zusätzlich oder alternativ zur Steuerung einer Schallabgabe zur Steuerung von Beleuchtung genutzt sind. Etwa kann bei einer Erfassung von Schall nur in einem bestimmten Bereich eines Raumes die Beleuchtung auf diesen Bereich begrenzt werden oder bei Erfassung bestimmter Signale, die etwa bestimmten Personen wie Überwachungspersonal zugeordnet sind, die Beleuchtung verstärkt werden.It is also possible for a person and / or a device to emit detection signals, for example radio signals, by a radio transmitter located on the person or the device or object (this can also be, for example, a smart phone and / or an (entrance) chip card be assigned), and that associated with the control unit for influencing noise, a corresponding radio receiver is provided, which can identify a particular person or a specific object on it and accordingly by means of the control to which these signals are given, this person or this object special counter sound training or a special sound masking is assigned and / or special, possibly with the object or the person wandering, discretion zones are created in the manner described. With regard to the already provided control for the sound actuators and the possible, described detection of detection signals, such as radio signals that are emitted by a person or an object, can also be provided that these signals additionally or alternatively to control a sound output for the control of Lighting are used. For example, when sound is detected only in a certain area of a room, the lighting can be limited to this area, or the lighting can be amplified when certain signals are assigned to certain persons, such as surveillance personnel.

Weiter ist es auch bevorzugt, dass die Erfassung von Schall über den Schallsensor, beispielsweise durch Kopplung mit einer Alarmanlage, als Anwesenheitskontrolle oder Eintrittskontrolle genutzt wird. Hierdurch kann beispielsweise dann vorgesehen werden, dass im Falle einer Erfassung eines Schallwertes in einem Zeitraum, in dem die Alarmanlage keine Schallwerte erwartet, in dem betreffenden Bereich oder Raumabschnitt ein erheblicher Schall erzeugt wird, der Aufsichtspersonen sogleich zu diesem Bereich hinführen kann. Wenn die erfasste Schallquelle dann durch den Raum wandert, kann entsprechend auch der erzeugte Gegenschall durch den Raum mit dieser Schallquelle mitwandern.Furthermore, it is also preferred that the detection of sound via the sound sensor, for example by coupling with an alarm system, is used as presence control or access control. As a result, it can then be provided, for example, that in the event of detection of a sound value in a period in which the alarm system does not expect any sound values, a considerable sound is generated in the area or room section concerned, which supervisors can immediately lead to this area. If the detected sound source then wanders through the room, can accordingly mitwandern the generated counter-sound through the room with this sound source.

Hinsichtlich der Anordnung der Schallaktoren ist weiter bevorzugt, dass diese deckenseitig und/oder wandseitig in dem Raum angeordnet werden. Hierzu ist auch bevorzugt, dass sie in anderen Gegenständen eingebaut angeordnet werden, bspw. in einem sogenannten Deckensegel oder in einem Wand-Akustikteil. Hierbei kann es sich um einen Schallabsorber handeln, der wand- oder deckenseitig in einem solchen Raum angeordnet ist. Bevorzugt sind in einem solchen Raum dann mehrere Deckensegel oder Schallabsorber als solche oder Decken- oder Wandelemente als solche, angeordnet. Hinsichtlich der Ausbildung eines solchen Deckensegels oder Schallabsorbers wird bspw. auf die EP 1 918 472 A1 , die DE 20 2007 016382 U1 , die DE 20 2009 013052 U1 und die DE 20 2008 008896 U1 verwiesen. Der Inhalt dieser genannten Druckschriften wird hiermit im Hinblick auf die Ausgestaltung der Schallabsorber als solche vollinhaltlich in die Offenbarung vorliegender Anmeldung jeweils mit eingeschlossen, auch zum Zwecke Merkmale dieser vorbekannten Druckschriften in Ansprüche vorliegender Anmeldung mit aufzunehmen.With regard to the arrangement of the sound actuators is further preferred that these are arranged on the ceiling side and / or wall side in the room. For this purpose, it is also preferred that they are arranged installed in other objects, for example in a so-called ceiling sail or in a wall acoustic part. This may be a sound absorber, which is arranged on the wall or ceiling side in such a room. Preferably, in such a room then several ceiling sails or sound absorbers are arranged as such or ceiling or wall elements as such. With regard to the formation of such a ceiling sail or sound absorber is, for example. On the EP 1 918 472 A1 , the DE 20 2007 016382 U1 , the DE 20 2009 013052 U1 and the DE 20 2008 008896 U1 directed. The content of these cited documents is hereby incorporated with respect to the embodiment of the sound absorber as such in full in the disclosure of the present application, including for the purpose of features of these prior art documents in claims of this application.

Weiter ist bevorzugt, dass in einem solchen Schallabsorber oder Deckenelement allgemein, speziell einem Deckensegel, der Schallsensor und/oder der Schallaktuator autark angeordnet sind. Dies bedeutet, dass sie bevorzugt kabellos, etwa über Funk, ansteuerbar sind, weiter, dass innerhalb des Deckenelementes auch eine autarke Stromversorgung, etwa über einen Akkumulator, für eine Schallsensor und/oder einen Schallaktuator vorgesehen ist.It is further preferred that in such a sound absorber or ceiling element in general, especially a ceiling sail, the sound sensor and / or the sound actuator are arranged independently. This means that they are preferably wirelessly, for example via radio, controllable, further that within the ceiling element and a self-sufficient power supply, such as an accumulator, is provided for a sound sensor and / or a sound actuator.

Gegenstand der Erfindung ist auch ein bevorzugt an einer Decke eines Raumes zu befestigender Schallabsorber, bspw. aufweisend ein Schaumstoff-Flächenteil. Hinsichtlich eines solchen Schallabsorbers stellt sich die Aufgabe, eine Effektivität zur Schallunterdrückung oder Schallmaskierung zu verbessern.The subject matter of the invention is also a sound absorber preferably to be fastened to a ceiling of a room, for example having a foam surface part. With regard to such a sound absorber, the task arises to improve an effectiveness for sound suppression or sound masking.

Diese Aufgabe ist bei einem Schallabsorber gelöst, bei dem darauf abgestellt ist, dass er eine Schallquelle aufweist.This object is achieved in a sound absorber in which it is geared to having a sound source.

Bevorzugt weist der Schallabsorber eine Schallquelle in Form eines Lautsprechers auf. Es kann sich auch um eine Membranfolie handeln, die etwa zur Erzeugung von Schall angeregt wird. Weiter bevorzugt ist die Schallquelle, die in dem Schallabsorber vorgesehen ist, in Abhängigkeit eines erfassten Schalls steuerbar, nämlich zur aktiven Schallunterdrückung so steuerbar, dass sie einen Schall abgibt, der möglichst zur Aufhebung des Störschalls führt oder der zur gewünschten Überlagerung des vorhandenen Schallfeldes führt, um ein lokales Gespräch zu maskieren.The sound absorber preferably has a sound source in the form of a loudspeaker. It may also be a membrane film, which is excited about to produce sound. More preferably, the sound source, which is provided in the sound absorber, controllable in dependence on a detected sound, namely for active sound suppression controllable so that it emits a sound that leads as possible to cancel the noise or leads to the desired superposition of the existing sound field, to mask a local call.

Weiter ist bevorzugt, dass der Schallabsorber einen Schallsensor, bevorzugt in Form eines Mikrophons, aufweist.It is further preferred that the sound absorber comprises a sound sensor, preferably in the form of a microphone.

Weiter ist bevorzugt, dass eine Schallabgabe der Schallquelle in Abhängigkeit einer in dem Raum ggf. beweglich vorgesehenen Schallquelle durchführbar ist.It is further preferred that a sound output of the sound source can be carried out as a function of a sound source which may be provided movably in the room.

Wenn auch vor- und nachstehend bevorzugt hinsichtlich der Decken- und Wandelemente auf Schallabsorber auf Schaumstoffbasis Bezug genommen ist, so ist doch zu verstehen, dass grundsätzlich alle schallwirksamen Elemente, bspw. auch auf Basis eines porösen Steins oder dergleichen, in der hier beschriebenen Weise mit Schallaktoren und/oder Schallsensoren ausgestattet sein können.Although preference has been given to foam-based sound absorbers with regard to the ceiling and wall elements, it is to be understood that in principle all sound-active elements, for example based on a porous stone or the like, also participate in the manner described here Sound actuators and / or sound sensors can be equipped.

Nachstehend ist die Erfindung anhand der beigefügten Zeichnung, die lediglich ein Ausführungsbeispiel darstellt, erläutert. Hierbei zeigt:

Fig. 1
eine schematische Ansicht eines Raumes mit darin angeordneten Gegenständen, die einen Schallaktuator und/oder einen Schallsensor aufweisen; und
Fig. 2
eine perspektivische Ansicht eines Raumes und darin deckenseitig angeordneten Schallabsorbern, weiter aufweisend einen Schallaktuator und/oder einen Schallsensor.
The invention with reference to the accompanying drawings, which illustrates only one embodiment explained. Hereby shows:
Fig. 1
a schematic view of a room with objects arranged therein, having a sound actuator and / or a sound sensor; and
Fig. 2
a perspective view of a room and arranged therein ceiling sound absorbers, further comprising a sound actuator and / or a sound sensor.

Dargestellt und beschrieben ist zunächst mit Bezug zu Fig. 1 ein schematischer Raum 1, in dem wand- und/oder deckenseitig Schallabsorber 2 angeordnet sind (beim Ausführungsbeispiel sind nur wandseitige Schallabsorber 2 dargestellt). Es handelt sich vorzugsweise um Schaumstoff-Schallabsorber, wie weiter vorne bereits erläutert. Ein Schallabsorber besteht in einem einfachen Fall aus einem selbsttragenden Schallabsorberteil, das decken- oder wandseitig über Befestigungsstangen oder Befestigungselemente angebracht ist. Es kann sich insbesondere um ein Schaumstoffteil, vorzugsweise auf Melaninharzschaumstoffbasis handeln, das in einem dieses randseitig umgebenden Rahmenteil aufgenommen ist, wobei die Befestigung an der Decke und/oder der Wand bevorzugt über das Rahmenteil erfolgt. Es wird auf die schon genannten Druckschriften im Weiteren verwiesen.Shown and described is first with reference to Fig. 1 a schematic space 1, in the wall and / or ceiling side sound absorber 2 are arranged (in the embodiment, only wall-side sound absorber 2 are shown). It is preferably a foam sound absorber, as already explained above. A sound absorber consists in a simple case of a self-supporting Schallabsorberteil which is mounted on the ceiling or wall side via mounting rods or fasteners. In particular, it can be a foam part, preferably a melamine resin foam base, which is accommodated in a frame part surrounding this edge, wherein attachment to the ceiling and / or the wall preferably takes place via the frame part. Reference is made to the already mentioned publications below.

In den Schallabsorber 2 sind, hier nur schematisch angedeutet, Schallaktuatoren 3 und/oder Schallsensoren 4 jeweils vorgesehen.In the sound absorber 2, only schematically indicated here, sound actuators 3 and / or sound sensors 4 are provided.

Weiter ist bevorzugt, was hier nur schematisch angedeutet ist, dass in oder zugeordnet zu dem Schallabsorber 2 ein Akkumulator 5 vorgesehen ist, zur Stromversorgung des Schallaktuators 3 und/oder des Schallsensors 4. Im Weiteren kann aber auch eine unmittelbare Stromversorgung vorgesehen sein, insbesondere dann, wenn der Schallabsorber 2, wie prinzipiell bekannt, zugleich auch noch mit Leuchteinheiten ausgestattet ist, die ohnehin eine Stromversorgung erfordern.Further, it is preferred, which is indicated here only schematically, that an accumulator 5 is provided in or assigned to the sound absorber 2, for the power supply of the sound actuator 3 and / or the sound sensor 4. In addition, however, an immediate power supply may be provided, in particular if the sound absorber 2, as known in principle, at the same time also equipped with light units that require a power supply anyway.

Mit Bezug zu Fig. 2 ist eine schematische perspektivische Ansicht eines Raumes 1 wiedergegeben, in dem deckenseitig die Schallabsorber 2 mit den Schallaktuatoren 3 und/oder den Schallsensoren 4 angeordnet sind.In reference to Fig. 2 is a schematic perspective view of a room 1 reproduced, in the ceiling side, the sound absorber 2 with the sound actuators 3 and / or the sound sensors 4 are arranged.

Der über die Schallsensoren 4 ermittelte jeweilige Schall wird in einer Rechnereinheit, wie im Einzelnen dargestellt ist, analysiert und sodann wird über die Schallaktuatoren 3 gleichsam ein Gegenschall oder ein Schallmaskierungs-Schall erzeugt, der im Falle des Gegenschalls vorzugsweise vollständig, jedenfalls aber im Wesentlichen oder zu einem beträchtlichen Anteil so gegensinnig gerichtet ist, dass sich der Schall und der Gegenschall gegeneinander aufheben.The particular sound determined via the sound sensors 4 is analyzed in a computer unit, as shown in detail, and then, as it were, a counter sound or sound masking sound is generated via the sound actuators 3, which in the case of the counter sound is preferably complete, or at least essentially directed to a considerable extent so in opposite directions, that cancel the sound and the counter-sound against each other.

Insbesondere kann durch ein oder mehrere der Schallsensoren 4 auch ein Wandern einer Schallquelle durch einen solchen Raum erfasst werden und ein entsprechender Gegenschall oder Maskierungsschall von einem Schallaktuator 3 auf einen weiteren "übergeben" werden. Auch können einzelne Diskretionszonen, wie weiter oben schon näher erläutert, gebildet werden und ggf. auch "wandernd" vorgesehen werden.In particular, one or more of the sound sensors 4 can also detect a wandering of a sound source through such a room, and a corresponding counter sound or masking sound can be "transferred" from one sound actuator 3 to another. Also, individual discretion zones, as already explained in more detail above, can be formed and possibly also provided "wandering".

Die Schallabsorber 2 bzw. speziell entsprechende Deckensegel sind bevorzugt in der Weise vorgesehen, dass etwa 20 bis 60% der Decken- und/oder Wandfläche, bevorzugt etwa 40% der Decken- und/oder Wandfläche, hiervon in einer Projektion auf die Decken- bzw. Wandfläche überdeckt sind.The sound absorbers 2 or specifically corresponding ceiling canopies are preferably provided in such a way that about 20 to 60% of the ceiling and / or wall surface, preferably about 40% of the ceiling and / or wall surface, of which are covered in a projection on the ceiling or wall surface.

Die Akkumulatoren 5 werden bevorzugt so vorgesehen, dass sie über einen sehr langen Zeitraum wartungsfrei sind, etwa 1 bis 2 Jahre wartungsfrei. Auch kann vorgesehen sein, dass der Ladezustand eines Akkumulators 5 per Funk oder Wlan übertragen wird und so abfragbar ist.The accumulators 5 are preferably provided so that they are maintenance-free over a very long period of time, maintenance-free for about 1 to 2 years. It can also be provided that the state of charge of a rechargeable battery 5 is transmitted by radio or WLAN and can be interrogated.

Insbesondere ist vorgesehen, dass die Schallakkumulatoren und/oder die Schallsensoren in einem Frequenzbereich von etwa 100 Hz bis 2 kHz, weiter bevorzugt von 125 Hz bis 1 kHz, arbeiten.In particular, it is provided that the sound accumulators and / or the sound sensors in a frequency range of about 100 Hz to 2 kHz, more preferably from 125 Hz to 1 kHz, work.

Alle offenbarten Merkmale sind (für sich) erfindungswesentlich. In die Offenbarung der Anmeldung wird hiermit auch der Offenbarungsinhalt der zugehörigen/beigefügten Prioritätsunterlagen (Abschrift der Voranmeldung) vollinhaltlich mit einbezogen, auch zu dem Zweck, Merkmale dieser Unterlagen in Ansprüche vorliegender Anmeldung mit aufzunehmen. Die Unteransprüche charakterisieren in ihrer fakultativ nebengeordneten Fassung eigenständige erfinderische Weiterbildung des Standes der Technik, insbesondere um auf Basis dieser Ansprüche Teilanmeldungen vorzunehmen.All disclosed features are essential to the invention. The disclosure of the associated / attached priority documents (copy of the prior application) is hereby also incorporated in full in the disclosure of the application, also for the purpose of including features of these documents in claims of the present application. The subclaims characterize in their optional sibling version independent inventive development of the prior art, in particular to make on the basis of these claims divisional applications.

Bezugszeichenliste:LIST OF REFERENCE NUMBERS

11
Raumroom
22
Schallabsorbersound absorber
33
SchallaktuatorSchallaktuator
44
Schallsensorsound sensor
55
Akkumulatoraccumulator

Claims (10)

Verfahren zur Geräuschbeeinflussung in einem Raum (1), wie bspw. einem Großraumbüro, wobei eine aktive Schallunterdrückung und/oder eine Schallmaskierung vorgenommen wird, dadurch gekennzeichnet, dass eine Mehrzahl von Schallaktoren (3) über die Fläche des Raumes (1) verteilt vorgesehen werden und in dem Raum (1) weiter mindestens ein Schallsensor (4) angeordnet wird und zwei oder mehr der Schallaktoren (3) im Hinblick auf von dem Schallsensor (4) erfasste Schallwerte und/oder im Hinblick auf eine gewünschte schallmäßige Raumaufteilung und/oder zufolge erfasster Personen- oder Gegenstandssignale, ggf. unterschiedlich, beaufschlagt werden.A method for influencing noise in a room (1), such as an open-plan office, wherein an active sound suppression and / or sound masking is performed, characterized in that a plurality of sound actuators (3) over the area of the space (1) are provided distributed and in the space (1) further at least one sound sensor (4) is arranged and two or more of the sound actuators (3) with respect to sound from the sound sensor (4) detected and / or in view of a desired sound distribution and / or detected person or object signals, possibly different, be acted upon. Verfahren nach Anspruch 1 oder insbesondere danach, dadurch gekennzeichnet, dass nicht nur eine Mehrzahl von Schallaktoren (3), sondern auch eine Mehrzahl von Schallsensoren (4) vorgesehen werden.A method according to claim 1 or in particular, characterized in that not only a plurality of sound actuators (3), but also a plurality of sound sensors (4) are provided. Verfahren nach einem oder mehreren der vorhergehenden Ansprüche oder insbesondere danach, dadurch gekennzeichnet, dass eine Beaufschlagung der Schallaktoren (3) entsprechend einer sich über die Fläche des Raumes (1) bewegenden Schallquelle vorgenommen wird.Method according to one or more of the preceding claims or in particular according thereto, characterized in that a loading of the sound actuators (3) is carried out in accordance with a sound source moving over the surface of the room (1). Verfahren nach einem oder mehreren der vorhergehenden Ansprüche oder insbesondere danach, dadurch gekennzeichnet, dass die Schallaktuatoren (3) und/oder die Schallsensoren (4) decken- und/oder wandseitig in dem Raum (1) angeordnet werden.Method according to one or more of the preceding claims or in particular according thereto, characterized in that the sound actuators (3) and / or the sound sensors (4) are arranged on the ceiling and / or wall side in the space (1). Verfahren nach einem oder mehreren der vorhergehenden Ansprüche oder insbesondere danach, dadurch gekennzeichnet, dass ein Schallaktuator (3) und/oder ein Schallsensor (4) in einem Deckenelement angeordnet wird.Method according to one or more of the preceding claims or in particular according thereto, characterized in that a sound actuator (3) and / or a sound sensor (4) is arranged in a ceiling element. Verfahren nach einem oder mehreren der vorhergehenden Ansprüche oder insbesondere danach, dadurch gekennzeichnet, dass mit Hilfe eines Schallsensors (4), beispielsweise zur Ergänzung einer Alarmanlage, eine Anwesenheitskontrolle und/oder eine Zusatzberechtigung durchgeführt wird, und/oder, dass eine Regelung oder Steuerung einer Beleuchtung durchgeführt wird.Method according to one or more of the preceding claims or in particular according thereto, characterized in that with the aid of a sound sensor (4), for example to supplement an alarm system, a presence check and / or an additional authorization is performed, and / or that a control or regulation of a Lighting is performed. An einer Decke eines Raumes (1) zu befestigender Schallabsorber (2), bspw. aufweisend ein Schaumstoff-Flächenteil, dadurch gekennzeichnet, dass der Schallabsorber (2) einen Schallaktuator (3) aufweist.On a ceiling of a room (1) to be attached sound absorber (2), for example. Having a foam surface part, characterized in that the sound absorber (2) has a sound actuator (3). Vorrichtung nach Anspruch 7 oder insbesondere danach, dadurch gekennzeichnet, dass der Schallaktuator (3) eine Schallquelle in Form eines Lautsprechers ist.Apparatus according to claim 7 or in particular according thereto, characterized in that the sound actuator (3) is a sound source in the form of a loudspeaker. Vorrichtung nach einem oder mehreren der Ansprüche 7 oder 8 oder insbesondere danach, dadurch gekennzeichnet, dass der Schallabsorber (2) einen Schallsensor (4), bevorzugt in Form eines Mikrophons, aufweist.Device according to one or more of claims 7 or 8 or in particular according thereto, characterized in that the sound absorber (2) comprises a sound sensor (4), preferably in the form of a microphone. Vorrichtung nach einem oder mehreren der Ansprüche 7 bis 9 oder insbesondere danach, dadurch gekennzeichnet, dass eine Schallabgabe der Schallquelle in Abhängigkeit einer in dem Raum (1) ggf. beweglich vorgesehenen Schallquelle durchführbar ist.Device according to one or more of claims 7 to 9 or in particular according thereto, characterized in that a sound output of the sound source in dependence of a space in the space (1) possibly provided movably sound source is feasible.
EP12174570.7A 2011-07-11 2012-07-02 Method and device for active noise masking Withdrawn EP2546830A3 (en)

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