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WO2011061361A2 - Système et procédé de production sonore multimicrophonique - Google Patents

Système et procédé de production sonore multimicrophonique Download PDF

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Publication number
WO2011061361A2
WO2011061361A2 PCT/ES2010/000466 ES2010000466W WO2011061361A2 WO 2011061361 A2 WO2011061361 A2 WO 2011061361A2 ES 2010000466 W ES2010000466 W ES 2010000466W WO 2011061361 A2 WO2011061361 A2 WO 2011061361A2
Authority
WO
WIPO (PCT)
Prior art keywords
intensity
interest
mixing
point
input signals
Prior art date
Application number
PCT/ES2010/000466
Other languages
English (en)
Spanish (es)
Other versions
WO2011061361A3 (fr
Inventor
Antonio Jesús BENÍTEZ IGLESIAS
Manuel SÁNCHEZ CID
Antonio Gustavo ASUAR GARCÍA
Original Assignee
Universidad Carlos Iii De Madrid
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 Universidad Carlos Iii De Madrid filed Critical Universidad Carlos Iii De Madrid
Publication of WO2011061361A2 publication Critical patent/WO2011061361A2/fr
Publication of WO2011061361A3 publication Critical patent/WO2011061361A3/fr

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • H04R3/005—Circuits for transducers, loudspeakers or microphones for combining the signals of two or more microphones
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/32—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2420/00—Details of connection covered by H04R, not provided for in its groups
    • H04R2420/01—Input selection or mixing for amplifiers or loudspeakers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2430/00—Signal processing covered by H04R, not provided for in its groups
    • H04R2430/01—Aspects of volume control, not necessarily automatic, in sound systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S2400/00—Details of stereophonic systems covered by H04S but not provided for in its groups
    • H04S2400/15—Aspects of sound capture and related signal processing for recording or reproduction

Definitions

  • the invention described belongs to the multimicrophonic sound production systems and procedures sector, in particular for audiovisual productions.
  • microphones of different characteristics are usually used around the field with the aim of capturing the sound of the public and that of the main protagonists of the sports action and other elements of interest.
  • the main actors, footballers in this case move across the pitch based on a mobile: the ball.
  • the sound technician in this example, usually tracks the movement of the different points of interest (mainly the ball), throughout the length of the field, resulting in increases or decreases in the signal of the channel or channels corresponding to the microphones installed and involved in the action.
  • the total or partial sum of the different input channels is assigned to the different shipments or outputs, mainly the mix or program outputs, although you can also act on the other outputs or shipments, for example on what is sent to the speakers of the realization control or what is sent to the narrators' helmets.
  • One of the objects of the present invention is to provide a system that facilitates the sound technician the processes of capturing and mixing the different sound generating sources existing in the scenario of the action and helping him to define the operational approach of each of The different situations.
  • said system comprises means for processing and mixing input signals from a plurality of microphones spread across a stage, while enabling different output signals.
  • the means for mixing which can be implemented by means of a mixer or remote control of facfers / attenuators are adapted to manage the intensity of each of the input signals.
  • the system allows to determine the gain of each of the input signals depending on the position of one or several points of interest within the scenario, thus enabling control values that specify the intensity variables for the mix.
  • Said means can be implemented to determine the intensities of the input and output signals by means of a processor loaded with a suitable computer program.
  • the mixing means are adapted to vary the intensities depending on the control signal.
  • the position of the point or points of interest and its sound level within the sound scenario according to established parameters that automatically manage the intensity levels of the input and output channels in the mixing process.
  • One of the advantages of the invention is that it is not necessary to detach the material on which it has already been inverted, such as the mixer, thus allowing a technological and operational linkage.
  • the system comprises a graphical interface that allows the user the possibility of providing or modifying the position of the point of interest on the stage.
  • the user interface is adapted to generate position data of the point of interest and provide such data to the means to determine the intensity.
  • the user interface is a touch screen.
  • the sound technician can track the mobile or specify the trajectories that the system should cover, so that it becomes a task with dynamics analogous to the movement of the game in the real scene, allowing the system to determine which channels are involved and the amount of signal strength applicable per channel corresponding to the position parameters.
  • the technician can provide the position of the main mobile simply by touching the touch screen in the position where the mobile is currently located or any other point of interest. Even several points at the same time.
  • the touch screen shows the user a template that reproduces the scenario.
  • the system comprises means for automatically tracking the point of interest on the stage, generating position data of the points of interest and providing said data to the means for determining the signal strength.
  • the sound technician can be freed from the operation, his intervention not being necessary in a continuous way in the determination of the intensities of the input and output channels unless he considers it appropriate.
  • Automatic tracking of the point or points of interest can be carried out using known techniques, such as "visual tracking" or by means of positioning circuits integrated in the body or moving bodies, for example, in the ball or others, in the case of a soccer game.
  • the system comprises a database that collect the configuration and design of the multi-microphone position on stage with detail of location, direction and direction and model of each microphone or, at least, sensitivity and polar diagram.
  • the configuration can be predefined by the system manufacturer. However, preferably the system comprises a user interface that allows the sound technician to provide the configuration.
  • the mixing means are adapted for sending or sending the generated signal to different output channels, which can be of the mono, stereo or multichannel type surround.
  • the means for determining the intensity of the input signal or signals are adapted to specify to which or which of the output channels or sends the output signal should be assigned based on the position of the point of interest and / or the parameters. specified by the operator according to the type of mix chosen (mono, stereo or surround).
  • the means for determining the intensity provide a control signal that specifies said channel or said channels to the means for mixing.
  • the mixing means are adapted to provide the output signal to the specified channel or output channels.
  • a method of producing a multi-microphone sound signal comprising the following steps:
  • Figure 1 shows a scenario in which the present invention can be used with microphones and their areas of influence.
  • Figure 2 shows a block diagram of a system according to an embodiment of the invention.
  • Figure 1 shows a soccer field 100 as an example of a scenario in which the system of the present invention can be used.
  • there are numerous microphones located around the field which can be of different types, for example very directional with a narrow or little directional influence zone, with a wide influence zone. Only some microphones 110, 120, 130 with their influence zones 110 ', 120' 130 'are shown in the figure.
  • the sound operator follows the game and mainly the position of the ball 150 and translates this game situation with increases in intensity in the channels corresponding to the microphones it has installed. For example, if the ball is in the position shown in Figure 1, the operator will tend to raise the intensity (gain) of microphone 130 with an area of influence 130 'that coincides with this area. It can also somewhat mitigate the gains of the microphones that are far from this area.
  • the manual operation is "delayed” with respect to the execution of the game, a direct consequence of the process of readjustment of the different parameters that influence the intensity of the different signals that are part of the action according to the emerging modifications. So that this delay is not very noticeable, the technician is usually conservative with the adaptation of intensities, which translates into a reduction of the efficiency in the capture and therefore in the output mixture.
  • FIG. 2 a block diagram of a system 200 according to an embodiment of the present invention is shown.
  • the system comprises means for mixing 210 to mix input signals from the microphones 1 10, 120, 130 distributed on stage 100 and present in a plurality of input channels 2100.
  • the means for mixing can be implemented by means of a mixing console Sound compatible
  • the mixer generates an output signal that is provided to one or more output channels 21 10.
  • the output channels can be mono, stereo or surround.
  • the mixer must be of the "remoteable" type, allowing to establish communication through common language, for example with a MIDI type delivery that allows the linear potentiometers of their channels to be varied "at a distance" and therefore their intensities.
  • the system 200 further comprises a graphical user interface 220.
  • This interface allows the operator to draw paths on a template that has been previously designed and represents scenario 100, along with other configurable options. In this way, the operator can follow the movement of the point of interest, for example the ball, across the stage.
  • the user interface is a touch screen and the operator can provide the position of the point of interest by touching the corresponding area in the template.
  • the user interface can also be of another type, for example allowing the operator to use a mouse that moves a cursor to provide the position.
  • the user interface 220 generates position data 2200 of the point or points of interest and provides it to a processor 230.
  • Said processor 230 has the function of determining the intensity of each of the input signals based on the data of position 2200 of the point or points of interest within the scenario.
  • the processor provides a control signal 2310, which specifies the intensity levels at MIDI delivery of the mixer 210.
  • the mixer varies the intensities depending on the control signal.
  • the processor accesses through a connection 2400 to a database 240 that collects the configuration of the multi-microphone assembly, with detail of address, direction and microphone model or, at least, sensitivity and polar diagram
  • the configuration contained in database 240 may be preconfigured, but it is preferable for the user to define the configuration according to his needs.
  • the system may have a user interface that represents the scenographic plant to be covered and that allows the user to provide the configuration, for example by dragging icons.
  • the configurations thus obtained are storable and reusable, because the planning and provision of mobile systems or units for the production of sound events such as football tend to remain constant.
  • the processor also determines to which or which of the output channels the output signal or signals should be provided based on the position of the point or points of interest plus secondary points.
  • the processor provides a control signal, which specifies said channel or said channels to the mixer.
  • the mixer provides the output signal to the specified channel or output channels.
  • the processor 230 has the additional function of graphical simulation of the position of the point of interest provided by the user. It provides a signal with the translation of the position to graphic 2300 to the user interface 210. In this way, the operator receives a feedback of his actions on the screen 220. Also, the graphic simulation can give an indication of the microphones that are being used and their spectral levels of capture, for example, showing the microphones in the template with different colors for different levels of collection or intensifying - for example - the color where the signals are enhanced and reducing the intensity of color where It is going to dim.
  • the system shown in Figure 2 works as follows.
  • the operator provides the position of a point of interest to the system, for example the ball, by touching the template shown on the touch screen 220. For example, if the ball 150 is in area 140, the operator touches the template in that area .
  • the touch screen 220 provides the data of the position in which the operator has touched the processor 230.
  • the processor uses the configuration data in the database 240 to determine which of the channels the mixer has to use and with what intensity to generate the output signal. It also determines to which or which of the output channels the output signal must be provided.
  • the balloon 150 is near the microphone 130.
  • the processor determines that the intensity of the signal from the microphone 130 must be enhanced, because its area of influence 130 'coincides with the area where the ball 150 is located.
  • the ball 150 is in zone 160 but also the small area in front of the goal can be considered a point of interest, because it is interesting to listen to the instructions of the goalkeeper to their defenses and the cries of protest from the strikers to the referee because the defenders grab them, etc.
  • the processor could use an algorithm that translates the "corner" position to a rise in the gains and channel intensity of both the microphone near the corner 110 and the microphone 130 behind the goal.
  • the processor 210 determines the intensity of each of the input signals based on the positions of various points of interest.
  • the user interface 220 is replaced by means for automatic tracking of the point of interest by the stage, for example, by visual tracking or by a positioning circuit. Said means generate position data of the point of interest and provide said data to the processor 210.
  • the invention is particularly useful for audiovisual productions of sport, for example football, basketball or tennis, it can also be applied to other shows such as concerts or television programs, considering presenters' mobility similar to 5 actors instead of the ball.
  • a computer program may be stored / distributed on a suitable medium, such as an optimal storage medium or a solid state medium supplied together with or as part of other hardware, but may also be distributed in other ways, such as through the Internet and other wired or wireless telecommunication systems. Any reference sign in the claims should not be construed as limiting the scope.

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • General Health & Medical Sciences (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Stereophonic System (AREA)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)

Abstract

L'invention concerne un système et un procédé de production sonore multimicrophonique avec suivi d'un ou de plusieurs points d'intérêt dans un décor. Une table de mixage (210) mélange des signaux d'entrée (2100) provenant d'une pluralité de microphones répartis dans un décor, puis elle génère un ou plusieurs signaux de sortie (2110). La table de mixage peut moduler l'intensité de chacun des signaux d'entrée. Un processeur (230) détermine l'intensité de chacun des signaux d'entrée en fonction de la position d'au moins un point d'intérêt à l'intérieur du décor, puis il fournit un signal de commande (2310) indiquant les niveaux d'intensité à la table de mixage. La table de mixage module les intensité en fonction du signal de commande.
PCT/ES2010/000466 2009-11-18 2010-11-18 Système et procédé de production sonore multimicrophonique WO2011061361A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ESP200931019 2009-11-18
ES200931019A ES2359902B1 (es) 2009-11-18 2009-11-18 Sistema y procedimiento de producción sonora multimicrofónica con seguimiento y localización de puntos de interés en un escenario.

Publications (2)

Publication Number Publication Date
WO2011061361A2 true WO2011061361A2 (fr) 2011-05-26
WO2011061361A3 WO2011061361A3 (fr) 2011-07-14

Family

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PCT/ES2010/000466 WO2011061361A2 (fr) 2009-11-18 2010-11-18 Système et procédé de production sonore multimicrophonique

Country Status (2)

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ES (1) ES2359902B1 (fr)
WO (1) WO2011061361A2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3130442A1 (fr) 2015-08-11 2017-02-15 The Procter and Gamble Company Dispositif d'injection de matière plastique et procédé de fabrication de pièces en plastique

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB201312490D0 (en) * 2013-07-12 2013-08-28 Calrec Audio Ltd Mixer control apparatus and method

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050202905A1 (en) * 2002-04-08 2005-09-15 William Chesser Method and system for use of transmitted location information in sporting events
EP1542206A1 (fr) * 2003-12-11 2005-06-15 Sony International (Europe) GmbH Dispositif et procédé pour la classification automatique de signaux audio
KR20050072256A (ko) * 2004-01-06 2005-07-11 엘지전자 주식회사 고밀도 광디스크의 메뉴 사운드 구성방법 및 재생방법과기록재생장치
WO2006006935A1 (fr) * 2004-07-08 2006-01-19 Agency For Science, Technology And Research Capture de son provenant d'une zone cible
US20080247567A1 (en) * 2005-09-30 2008-10-09 Squarehead Technology As Directional Audio Capturing

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3130442A1 (fr) 2015-08-11 2017-02-15 The Procter and Gamble Company Dispositif d'injection de matière plastique et procédé de fabrication de pièces en plastique

Also Published As

Publication number Publication date
ES2359902B1 (es) 2012-04-16
WO2011061361A3 (fr) 2011-07-14
ES2359902A1 (es) 2011-05-30

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