EP2908451A1 - Proszeniumsloge mit drahtlosem Audioverbinder - Google Patents

Proszeniumsloge mit drahtlosem Audioverbinder Download PDF

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Publication number
EP2908451A1
EP2908451A1 EP14155149.9A EP14155149A EP2908451A1 EP 2908451 A1 EP2908451 A1 EP 2908451A1 EP 14155149 A EP14155149 A EP 14155149A EP 2908451 A1 EP2908451 A1 EP 2908451A1
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EP
European Patent Office
Prior art keywords
audio
data
stagebox
wireless
data connection
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.)
Withdrawn
Application number
EP14155149.9A
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English (en)
French (fr)
Inventor
Matthew Rowe
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.)
Harman International Industries Ltd
Original Assignee
Harman International Industries Ltd
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 Harman International Industries Ltd filed Critical Harman International Industries Ltd
Priority to EP14155149.9A priority Critical patent/EP2908451A1/de
Publication of EP2908451A1 publication Critical patent/EP2908451A1/de
Withdrawn legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H60/00—Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
    • H04H60/02—Arrangements for generating broadcast information; Arrangements for generating broadcast-related information with a direct linking to broadcast information or to broadcast space-time; Arrangements for simultaneous generation of broadcast information and broadcast-related information
    • H04H60/04—Studio equipment; Interconnection of studios

Definitions

  • an audio stagebox comprising a wireless audio connector configured to establish a first data connection with the wireless audio equipment.
  • Mixing consoles are widely employed for processing of audio signals of different kinds and numbers.
  • a number of input audio signals may be processed, i.e., amplified and/or mixed and/or enhanced with certain audio effects, and then output as audio output signal to one or more consuming units, such as loudspeakers or headphones or recording means.
  • Environments where such mixing consoles find application include, but are not limited to: on-stage performances, presentations, places of worship, theaters, trade fairs, etc.
  • it is desired to provide wireless transmission to and from certain wireless audio equipment e.g., microphones, headphones, remote amplifiers, and other audio sources. Examples for scenarios where wireless transmission is desired include the provisioning of microphones or headphones which are wirelessly connected to the mixing console.
  • an audio stagebox having a plurality of audio connectors.
  • the audio connectors are configured to establish a data connection with audio equipment.
  • the audio stagebox is configured to interface the audio equipment with a mixing console.
  • the audio stagebox comprises a wireless audio connector which is configured to establish a first data connection with at least one wireless audio equipment by means of wireless data transmission. Further, the wireless audio connector is configured to receive audio data from the at least one wireless audio equipment via the first data connection.
  • the audio stagebox further comprises a data interface which is configured to establish a second data connection with the mixing console. The data interface is further configured to forward the audio data to the mixing console via the second data connection.
  • a wired further data connection may be present between the wireless audio connector and the data interface.
  • This wired further data connection may, in other words, internally connect the wireless audio connector with the data interface.
  • the first data connection may employ wireless transmission, e.g., according to a proprietary standard or, e.g., according to the Wireless Local Area Network (WLAN) Standard 802.11 of the Institute of Electrical and Electronics Engineers (IEEE).
  • the second data connection may employ fixed-line or wireless transmission, e.g., according to a proprietary standard or, e.g., Ethernet standard 802.3 of the IEEE.
  • the further data connection may comprise to data channels, e.g., a first data channel for forwarding the audio data between the wireless audio connector and the data interface, and a second data channel for control data. E.g., via the second data channel it may be possible to determine the presence and / or identity of the wireless audio connector in the audio stagebox which may be of particular importance if the latter is releasably mounted.
  • the audio data may be digital audio.
  • the second data connection may operate according to a multichannel digital audio protocol, wherein each audio equipment is associated with at least one channel of the multichannel digital audio protocol.
  • the multichannel digital audio protocol may be a time-division multiplex protocol, wherein a transmission frame of the multichannel digital audio protocol comprises a plurality of data blocks. Each data block may carry payload of the audio data of a given channel.
  • the audio data may be transmitted via the second data connection employing the Multi Channel Audio Digital Interface (MADI) standard AES 10-2003 by the Audio Engineering Society (AES).
  • MADI Multi Channel Audio Digital Interface
  • AES Audio Engineering Society
  • the first data connection and/or the second data connection may be configured for unidirectional transmission of data and/or audio data from the audio equipment to the stagebox, and from the stagebox to the mixing console, respectively - or vice versa. It is also possible that the first data connection and/or the second data connection are configured for bi-directional data connection.
  • the audio stagebox may comprise fixed-line audio connectors which include sockets or plugs for the physical connection with an inter-related plug or socket of a cable.
  • the wireless audio connector may comprise one or more antennas which can be arranged inside or outside of a housing of the audio stagebox.
  • the wireless audio connector may comprise dedicated hardware, e.g., a circuit board, or may be implemented at least partly as software, e.g., being executed on a main processor and/or a shared processor.
  • the wireless audio equipment may be selected from the group comprising: microphone, amplifier, electrical instrument.
  • the audio stagebox may also be referred to as a compact connector hub.
  • the audio stagebox may be seen as an extension to the mixing console. Instead of connecting each audio equipment directly to the mixing console, by means of the audio stagebox it becomes possible to connect the audio equipment to the audio stagebox and then provide, e.g., a single connection to the mixing console where the data to be transmitted for each audio equipment is multiplexed onto the second data connection. This reduces the need for cables. Further, it allows for easy connection of audio equipment to the mixing console via the audio stagebox. The point of connection can be closer to the audio equipment. Further, the placing of the audio stagebox may be versatile; the audio stagebox may be comparably portable. The audio stagebox may have smaller outer dimensions if compared to the mixing console. It may be possible to place the audio stagebox in closer proximity to the audio equipment than the mixing console, e.g., on-stage or close to the stage where the performance is ongoing.
  • a wireless audio connector as part of the mixing console, see, e.g., EP 2 629 440 A1 .
  • the distance between the wireless audio connector and the wireless audio equipment is larger in such a scenario if compared to the present solution where the wireless audio connector is provided as part of the stagebox. In other words, the distance which needs to be covered by wireless transmission may be reduced. Thereby, transmission reliability may be increased.
  • the audio stagebox may serve as an interface between the audio equipment and the mixing console. Interfacing may relate to: receiving the audio data from the audio equipment and forwarding the audio data towards the mixing console. In other words, the majority of the data handling may occur in the mixing console, e.g., mixing, adding audio effects, and/or amplifying. However, it is also possible that, to some smaller or larger degree, audio processing occurs in the audio stagebox.
  • the audio stagebox may multiplex the audio data of the audio equipment for transmission via the second data connection. It may also be possible that the audio stagebox compresses or otherwise modifies the audio data before forwarding the audio data to the mixing console.
  • the operation of the audio stagebox may be remote controlled from the mixing console.
  • the audio stagebox may execute commands received from the mixing console, e.g., as part of control data.
  • various operational parameters of the audio stagebox may be set by a user of the mixing console via a human-machine-interface (HMI) and sent to the audio stagebox via the second data connection.
  • HMI human-machine-interface
  • the data interface may be further configured to transceive control data via the second data connection, the control data including parameters of operation of the wireless audio connector and/or of the at least one wireless audio equipment.
  • control data may be sent from the audio stagebox to the mixing console and/or vice versa.
  • the control data may carry telemetry information.
  • the wireless audio connector and/or the stagebox may be remote controlled by a user of the mixing console, e.g., via a respective HMI.
  • various parameters of operation may be checked and set such as transmission strength, diversity, and mute status. For checking, current values of the operational parameters may be sent to the mixing console; for setting, set values of the operational parameters may be sent to the audio stagebox.
  • the parameters of operation may be selected from the group comprising: a wireless channel of the first data connection; an operating frequency of the first data connection; a signal strength of the first data connection; an identification tag of the audio equipment; a battery status of the audio equipment; a diversity of the first data connection; a mute status of the audio equipment.
  • some of the parameters may relate directly to the wireless audio connector of the audio stagebox; some of the parameters may additionally or alternatively relate to the wireless audio equipment which is wirelessly connected to the wireless audio connector.
  • the wireless audio connector may be configured to send and/or receive (transceive) at least parts of the control data via the first data connection.
  • control data may be transmitted employing a particular data encoding.
  • the data encoding may be according to a proprietary standard.
  • the data interface may also be configured to transceive the control data as payload of a predetermined channel of the multichannel digital audio protocol.
  • the control data may be transmitted via an audio-specific data encoding protocol. This may simplify the data transmission via the second data connection, because there may be no need to provision different protocols for the control data and the audio data.
  • a respective data interface of the mixing console configured to receive and transmit data via the second data connection may be reduced in complexity, as it may not be required to operate according to further encoding protocols.
  • the wireless audio connector may be fixedly installed in the audio stagebox. However, it is also possible that the wireless audio connector is releasably mounted in the audio stagebox, e.g., is interchangeable with further equipment of the audio stagebox.
  • the audio stagebox may comprise a docking bay which is configured to releasably mount an option module which includes the wireless audio connector.
  • the docking bay may be arranged on a front side or on a back side of the audio stagebox.
  • a plurality of fixed-line audio connectors may be situated on the front side of the audio stagebox.
  • the docking bay may be situated on the back side of the audio stagebox.
  • the front side and the back side may be opposite to each other.
  • the internal wired further data connection between the wireless audio connector and the data interface may be established.
  • the first data connection may be established between the wireless audio connector and the at least one wireless audio equipment.
  • it may be repeatedly checked whether the option module is mounted or not. Once mounted, the first data channel and the first data connection may be established to transmit the audio data.
  • the option module may comprise at least one antenna for establishing the wireless data transmission.
  • the at least one antenna may project from an outer surface of the audio stagebox when the option module is mounted in the docking bay. In other words, the antennas may extend beyond edges of the audio stagebox. Thereby, the transmission reliability of the data connection may be increased.
  • the at least one antenna may be remote from an outer surface of the audio stagebox and, therefore, from certain metallic parts of the audio stagebox. In other words, the at least one antenna may be arranged spaced apart from the outer surface of the audio stagebox.
  • the option module and/or the docking bay may comprise locking means to secure the option module when mounted within the docking bay.
  • the option module may comprise sockets and/or plugs and the docking bay may comprise inter-related plugs and/or sockets which engage with each other when the option module is mounted in the docking bay.
  • the audio stagebox may comprise a power supply and the docking bay may comprise a power connector configured to provide electrical power from the power supply to the option module when the option module is mounted in the docking bay. Thereby, it may be expendable to provision a dedicated power supply as part of the option module.
  • the option module may be less complex and comparably lightweight.
  • a mixing console for mixing a plurality of audio data.
  • the mixing console is configured to interface with an audio stagebox which has a plurality of audio connectors.
  • the plurality of audio connectors is configured to establish a data connection with audio equipment.
  • the mixing console comprises a mixing console data interface configured to establish a data connection with the audio stagebox and to receive audio data from at least one wireless audio equipment via the data connection.
  • the at least one wireless audio equipment is wirelessly connected via a wireless audio connector with the audio stagebox.
  • the mixing console may be inter-related with the audio stagebox according to a further aspect of the present invention.
  • the mixing console data interface may be further configured to transceive control data.
  • the control data may include parameters of operation of the wireless audio connector and/or of the audio equipment.
  • the mixing console may further comprise an HMI for interfacing with a user.
  • the HMI may be configured to determine at least some of the parameters of operation from user input and/or may be configured to output at least some of the parameters of operation to the user.
  • the HMI may comprise a display, e.g., a touch-sensitive display, and/or actuation elements such as sliders, rotary knobs, buttons, etc, and/or voice output/input.
  • the HMI may comprise displaying a menu structure including menus and sub-menus and functions to be executed on the display.
  • effects may be achieved which are comparable to the effects which may be achieved for an audio stagebox according to a further aspect.
  • a method of interfacing at least one wireless audio equipment with a mixing console comprises a wireless audio connector of an audio stagebox establishing a first data connection with the at least one wireless audio equipment by means of wireless data transmission.
  • the audio stagebox is remote from the mixing console.
  • the method further comprises the wireless audio connector receiving audio data from the at least one wireless audio equipment via the first data connection.
  • the method further comprises a data interface of the audio stagebox establishing a second data connection with the mixing console and forwarding the audio data to the mixing console via the second data connection.
  • the method may further comprise the data interface transceiving control data via the second data connection.
  • the control data may include parameters of operation of the wireless audio connector and/or of the at least one wireless audio equipment.
  • effects may be obtained which are comparable to the effects that may be obtained for the audio stagebox according to a further aspect.
  • a first data connection by means of wireless data transmission is established between a wireless audio connector of an audio stagebox and the wireless audio equipment.
  • the audio stagebox forwards audio data received via the first data connection to the mixing console.
  • a distance between the audio stagebox and the wireless audio equipment is smaller than a distance between the mixing console and the wireless audio equipment. This may allow increasing the transmission reliability of the first data connection.
  • an audio stagebox 110 is shown which is configured to interface audio equipment 190-1 - 190-5 with a mixing console 105.
  • the audio stagebox 110 has a plurality of audio connectors 121, 121a that are configured to establish a data connection with the audio equipment 190-1 - 190-5.
  • the audio connectors 121a establish a data connection by means of fixed-line data transmission; respectively, the wireless audio connector 121 establishes a first data connection 131 with the wireless audio equipment 190-1, 190-2, 190-3 by means of wireless data transmission (shown as dashed lines in FIG. 1 ).
  • Audio data is received by the wireless audio connector 121 from the wireless audio equipment 190-1, 190-2, 190-3 via the first data connection 131.
  • the wireless audio equipment 190-1, 190-2, 190-3 can be selected from the group comprising: microphone, amplifier, electrical instrument.
  • the audio stagebox 110 further comprises a data interface 122 which is configured to establish a second data connection 132 with the mixing console 105.
  • the data interface 122 forwards the audio data which is received from the audio equipment 190-1 - 190-5 via the second data connection 132.
  • the second data connection 132 in the scenario of FIG. 1 , is implemented by means of fixed-line data transmission; however, it should be understood that the second data connection 132 can also be implemented by means of wireless data transmission - in the latter case the audio stagebox 110 can function as a repeater for the data transmission between the wireless audio equipment 190-1, 190-2, 190-3 and the mixing console 105.
  • the further data connections may comprise one or more data channels, e.g., separate channels for control data and audio data. All such data may be multiplexed on the second data connection 132. E.g., these data channels of the further data connection may be implemented as separate physical connections or may be implemented as a multiplex protocol, as well.
  • the audio stagebox 110 may comprise a processor which processes the audio data before sending it on to the mixing console 105.
  • the processor may comprise or digitize the audio data.
  • the mixing console 105 comprises a mixing console data interface 105b.
  • the mixing console data interface 105b is configured to establish the second data connection 132 with the audio stagebox 110 and to receive the audio data.
  • the data interface 122 and the mixing console data interface 105b are inter-related.
  • the mixing console 105 comprises a processor 105a which is configured to process the received audio data; processing may relate to mixing, applying audio effect, routing, and/or amplifying.
  • the processed audio data can be output via outputs of the mixing console 105 (not shown in FIG. 1 ).
  • the mixing console 105 further comprises an HMI 105c for interfacing with the user of the mixing console.
  • the HMI 105c is configured to determine at least some parameters of operation of the audio stagebox 110 and/or of the audio equipment 190-1 - 190-5. In particular, the HMI 105c is configured to determine at least some parameters of operation of the wireless audio connector 121 and/or of the wireless audio equipment 190-1, 190-2, 190-3. These parameters of operation are sent as control data via the second data connection 132 to the audio stagebox 110 and processed there and/or executed by the audio stagebox 110 and/or forwarded towards the respective audio equipment 190-1 - 190-5. Thereby, a user of the mixing console 105 can remote control operation parameters of the audio stagebox 110 and/or of the audio equipment 190-1 - 190-5. In particular, a user of the mixing console 105 can control operation of the wireless audio connector 121.
  • the remote control can be implemented with respect to the various parameters of operation.
  • the parameters of operation may be selected from the group comprising: a wireless channel of the first data connection 131; an operating frequency of the first data connection 131; a signal strength of the first data connection 131; an identification tag of the audio equipment; a battery status of the audio equipment 190-1 - 190-5; a diversity of the first data connection 131; and a mute status of the audio equipment 190-1 - 190-5.
  • the wireless audio connector 121 is configured to transceive at least parts of the control data via the first data connection 131, i.e., forward at least parts of the control data to the wireless audio equipment 190-1 - 190-3. Then, the wireless audio connector 121 and/or the wireless audio equipment 190-1-190-3 can be remote controlled.
  • Such a remote control can make it unnecessary to provide an HMI at the audio stagebox 110.
  • This makes it possible to provide the audio stagebox 110 with comparably small outer dimensions.
  • the audio stagebox 110 may be smaller if compared to the mixing console 105.
  • This makes it possible to provide the audio stagebox 110 on-stage, i.e., in close proximity to the audio equipment 190-1 - 190-5.
  • the fixed-line data connection 133 may be comparably short.
  • the distance covered by the wireless data transmission of the first data connection 131 may be comparable short; this increases transmission reliability of the wireless data transmission.
  • it is also possible to provide actuation elements at the audio stagebox 110 e.g. for switching on/off, testing, etc.
  • the audio stagebox 110 serves as a hub for the connecting the plurality of audio equipment 190-1 - 190-5 with the mixing console 105.
  • the audio data of the various audio equipment 190-1 - 190-5 are transceived and processed as part of different channels.
  • the second data connection 132 can operate according to a multichannel digital audio protocol.
  • Each audio equipment 190-1 - 190-5 may be associated with at least one channel of the multichannel audio protocol.
  • the MADI audio protocol can be employed.
  • the various channels i.e., the audio data of the various audio equipment 190-1 - 190-5, can be transferred in a multiplexed manner via the second data connection 132.
  • the processor 105a of the mixing console 105 can process the various audio channels individually.
  • a dedicated audio protocol is employed for the transmission of audio data via the second data connection 132.
  • the control data is transceived by employing a different transmission protocol than employed for the audio connection; however, it is also possible that the control data is received as part of the protocol employed for the transmission of the audio data, e.g., the multichannel audio digital protocol.
  • the data interface 122 can be configured to transceive the control data as payload of a predetermined channel of the multichannel digital audio protocol.
  • various channels of the multichannel digital audio protocol are conventionally assigned to audio data of the various audio equipment 190-1 - 190-5
  • the multichannel digital audio protocol can also be employed for the transmission of the non-audio control data. This may simplify the operation of the data interface 122 and of the mixing console data interface 105b.
  • FIG. 2 a front view of the audio stagebox 110 is shown.
  • the audio stagebox 110 comprises a plurality of fixed-line audio connectors 121a which are formed as sockets or plugs. Further, a plug of the fixed-line data transmission of the data interface 122 is shown.
  • the wireless audio connector 121 is an integral part of the audio stagebox 110 and is, to a large degree, housed internally, i.e., within an outer housing of the audio stagebox 110.
  • the wireless audio connector 121 comprises two antennas which project beyond the outer edges of the audio stagebox 110. This increases the transmission reliability, as better reception becomes possible when the antennas 121 are at some distance with respect to, e.g. metallic parts of the audio stagebox 110.
  • the audio stagebox 110 comprises a docking bay 310 which is configured to releasably mount an option module 320 which includes the wireless audio connector 121.
  • the docking bay 310 is arranged on the front side of the audio stagebox 110.
  • the docking bay 310 is located on a back side of the audio stagebox 110 which is opposite to the front side.
  • the option module 320 comprises an antenna for establishing the wireless data transmission. The antenna projects from an outer surface of the audio stagebox 110 when the option module 320 is mounted in the docking bay 310. This can further increase the transmission reliability.
  • the audio stagebox 110 can comprise a power supply and the docking bay 310 can comprise a power connector configured to provide electrical power from the power supply to the option module 320 when the latter is mounted in the docking bay 310.
  • This can allow to fabricate the option module with comparably small dimensions and comparably lightweight as it may be expendable to provide a dedicated power supply within the option module 320.
  • FIG. 4 details of the multichannel digital audio protocol 410 which is employed for transmitting audio data 415 and control data 420 via the second data connection 132 are illustrated.
  • various audio channels relating to the various audio equipment 190-1 - 190-5 are multiplexed in time within a transmission frame.
  • 55 channels are provided.
  • the third channel carries payload which is the control data 420.
  • Such a protocol may be employed bi-directionally between the mixing console 115 and the audio stagebox 110.
  • step S1 a flowchart of a method of interfacing the wireless audio equipment 190-1-190-3 with the mixing console 105 is illustrated.
  • the method starts with step S1.
  • step S2 the first data connection 131 between the wireless audio connector 121 and the wireless audio equipment 190-1 -190-3 is established.
  • step S3 audio data is received by the wireless audio connector 121 from the wireless audio equipment 190-1 - 190-3 via the first data connection 131.
  • step S4 the audio data is forwarded to the mixing console 105 via the second data connection 132.

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Circuit For Audible Band Transducer (AREA)
EP14155149.9A 2014-02-14 2014-02-14 Proszeniumsloge mit drahtlosem Audioverbinder Withdrawn EP2908451A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP14155149.9A EP2908451A1 (de) 2014-02-14 2014-02-14 Proszeniumsloge mit drahtlosem Audioverbinder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP14155149.9A EP2908451A1 (de) 2014-02-14 2014-02-14 Proszeniumsloge mit drahtlosem Audioverbinder

Publications (1)

Publication Number Publication Date
EP2908451A1 true EP2908451A1 (de) 2015-08-19

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EP14155149.9A Withdrawn EP2908451A1 (de) 2014-02-14 2014-02-14 Proszeniumsloge mit drahtlosem Audioverbinder

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4922536A (en) * 1988-11-14 1990-05-01 Massachusetts Institute Of Technology Digital audio transmission for use in studio, stage or field applications
US20120299937A1 (en) * 2011-03-30 2012-11-29 Harman International Industries Ltd. Audio processing system
EP2629440A1 (de) 2012-02-15 2013-08-21 Harman International Industries Ltd. Tonmischkonsole

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4922536A (en) * 1988-11-14 1990-05-01 Massachusetts Institute Of Technology Digital audio transmission for use in studio, stage or field applications
US20120299937A1 (en) * 2011-03-30 2012-11-29 Harman International Industries Ltd. Audio processing system
EP2629440A1 (de) 2012-02-15 2013-08-21 Harman International Industries Ltd. Tonmischkonsole

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