WO2011117440A1 - Sound-capture system - Google Patents

Sound-capture system Download PDF

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Publication number
WO2011117440A1
WO2011117440A1 PCT/ES2011/000088 ES2011000088W WO2011117440A1 WO 2011117440 A1 WO2011117440 A1 WO 2011117440A1 ES 2011000088 W ES2011000088 W ES 2011000088W WO 2011117440 A1 WO2011117440 A1 WO 2011117440A1
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WO
WIPO (PCT)
Prior art keywords
microphones
bars
sound
supports
angles
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Application number
PCT/ES2011/000088
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Spanish (es)
French (fr)
Inventor
Manuel Sanchez Cid
Antonio Jesús BENITEZ IGLESIAS
Original Assignee
Universidad Rey Juan Carlos
Universidad Carlos Iii De Madrid
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Application filed by Universidad Rey Juan Carlos, Universidad Carlos Iii De Madrid filed Critical Universidad Rey Juan Carlos
Publication of WO2011117440A1 publication Critical patent/WO2011117440A1/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R5/00—Stereophonic arrangements
    • H04R5/027—Spatial or constructional arrangements of microphones, e.g. in dummy heads

Definitions

  • the present invention relates to the field of acoustics, more specifically to sound capture.
  • the object of the invention consists of a carrier microphonic pickup system of up to 8 microphones that allows to capture sounds at a variable angle of up to 360 Q.
  • Audiovisual productions with a variety of sound sources can use multi-microphone systems for phase or intensity acquisition, with variable positioning.
  • phase capture can be based on different articulated structures carrying the microphony. These pickup systems allow obtaining both discrete and matrix signals (depending on the model), which can be mono, stereo or surround. The range of action is wide, and can be useful in any source of sound sources, regardless of their number, environment and location.
  • Multichannel sound system is called both the concept of audio work with more than 2 channels (pickup and / or mixing), as well as the design of the encoded audio track containing front and surround channels in its different versions, as well as the equipment capable of reproducing said encoded track with surround channels.
  • - OCT II System consisting of a three-bar structure with a variation of the axis and size, with 5 microphones in essence.
  • the IRT system designed by Günther Theile, consisting of a cross with four pick-up points with angles of 45 s , 135 s , 225 s and 315 s .
  • - INA 5 system system designed for the use of 5 microphones spaced between 25 and 60 cm and with variable angles of 0 s , 90 s , 180 s , 145 s and 225 approximately.
  • None of the aforementioned systems offer a versatility of combinations that allows to obtain a favorable auditory image with respect to any sound source within 360 s .
  • some possibilities of temporal difference between the different sensors are necessary to avoid the generation of disturbances that hinder the clarity, depth and definition of the sound sources.
  • One of the aspects of the system object of the present invention is to provide a tool that facilitates the processes of capturing the different sound generating sources, simplifying the operational approach in each of the situations, being able to cover the 360 s space through the use of Eight microphones as sound capture media.
  • said system comprises means for capturing sound signals from a plurality of sources spread over an environment / scenario, both enabling a combination of discrete or independent concept output signals with partial signal according to the angle and polar pattern of the microphone, as a concept of summation purpose of the global environment by adding the discrete partial signals obtained in the acquisition.
  • the system object of the invention allows a capture of the 360 e with division in 45/90/135/180/225/270/315 and 360 e with the possibility of using a minorization of the system to become compatible with the standard formats composed of : 1 microphone (mono) - 2 microphones (stereo) - 3 microphones (stereo L, C, R), 4 microphones [Surround - quadraphony + (IRT)] - 5 microphones (standard surround systems) - 6 microphones (6.1), 7 microphones (7.1) and 8 microphones (8.1).
  • the system allows to influence, by means of the angular positional combination of its collection means, the gain and positioning of the signals produced by the sound sources according to their spatial position within a sound environment, thus enabling control values relative to the sources both spatiality and intensity.
  • Said means can be implemented to determine the angulations and intensities of the input and output signals with a combinable variable of 1 to 8 microphone elements and 0 to 360 e per pickup structure. This allows the location of the source or sound sources, both in watertight emitting points and in possible mobile trajectories that are generated around the microphone structure, leaving the operator's decision to determine which angles are involved and, therefore, the number of elements of catchment to use.
  • the operator can decide whether to intervene in the operation in a non-invasive way, his participation being decisive only in the structural design decisions of the angle and number of microphones; simplifying or minimizing its mediation in the natural values of the sound composition.
  • the maximum system configuration values are predefined by the manufacturer. However, the system allows the user to define the final configuration to be used, modifying the capture media, the microphones, from 1 to 8.
  • the sending to recording or mixing of the captured signals is configured by independent direct sends to the different channels of input of the signal receiving system, being able to be of the mono, stereo, multichannel or multichannel type surround.
  • the system object of the invention has a structure defined by a double inverted cross that forms an eight-pointed star, said double cross is in turn defined by 4 pairs of arms joined together by a pivoting joint.
  • the structure of the system object of the invention establishes predetermined angles that in turn can be modified by particular variations of each microphone, so that the increase in possibilities is extensive.
  • system object of the invention may be particularly useful for musical productions (classical music, opera %), sports (tennis, football, basketball %), it can also be applied for a varied typology of shows.
  • Other variations to the disclosed embodiments can be understood and carried out by those skilled in the art when practicing the claimed invention, from a study of the drawings, the description and the appended claims.
  • Each of the capture means generates a unique and independent signal that is carried through a wiring to a mixing device, and / or recording with the intervention of a preamp.
  • Figure .- Shows structural diagram of the system without attached microphones.
  • Figure 2. Shows the structural diagram of the system with attached microphones.
  • Figure 3. Shows a perspective view of the microphone holder.
  • Figure 4.- Shows a plan view of an example of the distribution of the system in an auditorium. PREFERRED EMBODIMENT OF THE INVENTION
  • Figure 4 shows a sketch as an example of a sound environment in which the system (1) of the present invention can be used.
  • the angles chosen by means of angle determination (6) and capture means (5) can be variable, both in number and in polar diagram or directivity, as shown in Figure 2.
  • Figure 1 shows in an exemplary way only a microphonic structure with degrees of angulation and their respective areas of influence in this way the system (1) generates one to eight discrete or independent sound signals.
  • the angulation is determined by the use of the angle determination means (6), such as a goniometer, in the case of the arms (2) and by means of joints (8) present between each of the bases (7) and each of the carriers (9) that make up the supports (4), thus allowing an individual adjustment of each of the collection means (5) by rotating them by means of the joints (8) with respect to the axis perpendicular to the center of the base (7), said arrangement is represented by way of illustration in figure 3.
  • the angle determination means (6) such as a goniometer
  • the system is connected to a wiring comprising cables or lines for each of the collection means (5) to take it to an output line (105) connected to the input line (104) of a table mixtures or previous (102), as can be seen in figure 4.
  • the system (1) can be placed between a stage (106) and an audience (103), if it exists.
  • the use of the system begins with an analysis of the sound environment where the sound action will be performed (open or closed space [dimensions and physical-acoustic characteristics]), the composition of sound sources (tonal, pressure characteristics, etc.) is also analyzed. number, spatial distribution, etc.).
  • a location of the system (1) object of the invention is selected and the possible configurations are estimated (it hangs, goes on the ground, goes in a camera or mobile support, height, distance of the sound sources, etc. .).
  • the axis O 9 established by the angle determination means (6) of the system (1) is directed to the center or degree 0 of the sound action (although variables other than the one mentioned above), said positioning can be carried out by means of a static or dynamic positioning (dynamic if it is positioned on a mobile support such as a pistol or handgrip for that purpose, specific pole, camera or any other support for use).
  • the number of microphones or pick-up media (5) that is deemed necessary (maximum eight) is placed on the supports (4), by means of the carriers (9), on the angles preset by the bars (2) of the system (1) ) and that are designated for this purpose by the user.
  • fine or precision angulation adjustments can be made on each of the supports (4) by means of the joints (8) once the microphones or pick-up means (5) to be used are established, they are wired through a connector and an individualized cable for each pick-up means (5) which will carry an individual output signal of pick-up means (5) to a signal receiving system; It could be an interface with microphone pre-functions or directly to the microphone inputs of an audio mixing console (102).
  • the system (1) generates independent output signals produced by each of the microphones or pick-up means (5), but does not limit the user in a possible matrix of them.

Abstract

The invention relates to a microphone capture system comprising two intersecting crosses, which is equivalent to 8 microphones on the stands thereof and which allows vari-angle (from 1 to 360°) sound capture depending on the directivity of the microphones used.

Description

SISTEMA PARA CAPTACIÓN SONORA D E S C R I P C I Ó N  SYSTEM FOR SOUND COLLECTION D E S C R I P C I Ó N
OBJETO DE LA INVENCIÓN OBJECT OF THE INVENTION
La presente invención se refiere al campo de la acústica, más concretamente a la captación sonora. The present invention relates to the field of acoustics, more specifically to sound capture.
El objeto de la invención consiste en un sistema de captación microfónica portador de hasta 8 micrófonos que permite captar sonidos en un ángulo variable de hasta 360Q. The object of the invention consists of a carrier microphonic pickup system of up to 8 microphones that allows to capture sounds at a variable angle of up to 360 Q.
ANTECEDENTES DE LA INVENCIÓN BACKGROUND OF THE INVENTION
Las producciones audiovisuales con variedad de fuentes sonoras pueden utilizar sistemas multimicrofónicos de captación en concepto de fase o de intensidad, con posicionamiento variable. Audiovisual productions with a variety of sound sources can use multi-microphone systems for phase or intensity acquisition, with variable positioning.
El concepto de captación en fase puede basarse en diferentes estructuras articuladas portadoras de la microfonía. Dichos sistemas de captación permiten obtener señales tanto discretas como matrizadas (según modelo), que pueden ser del tipo mono, estéreo o envolvente. El abanico de actuación es amplio, pudiendo ser de utilidad en cualquier captación de fuentes sonoras, independientemente de su número, entorno y ubicación. The concept of phase capture can be based on different articulated structures carrying the microphony. These pickup systems allow obtaining both discrete and matrix signals (depending on the model), which can be mono, stereo or surround. The range of action is wide, and can be useful in any source of sound sources, regardless of their number, environment and location.
Hoy en día existen numerosos sistemas de audio multicanal. Se denomina sistema de sonido multicanal tanto al concepto de trabajo de audio con más de 2 canales (captación y/o mezcla), como al diseño de la pista de audio codificada contenedora de canales frontales y envolventes en sus diferentes versiones, así como también al equipo capaz de reproducir dicha pista codificada con canales envolventes. Today there are numerous multichannel audio systems. Multichannel sound system is called both the concept of audio work with more than 2 channels (pickup and / or mixing), as well as the design of the encoded audio track containing front and surround channels in its different versions, as well as the equipment capable of reproducing said encoded track with surround channels.
A día de hoy se pueden encontrar distintos sistemas de captación sonora estereofónica como pueden ser: Today you can find different stereo sound capture systems such as:
- Sistema estéreo ORTF (Organización de Radiotelevisión Francesa), basado en una estructura pensada para dos micrófonos cardioides con ángulo entre 95 y 1 10Q y con una separación de 17 cm entre soportes. - ORTF stereo system (French Radio and Television Organization), based on a structure designed for two cardioid microphones with an angle between 95 and 1 10 Q and with a separation of 17 cm between supports.
- Sistema estéreo NOS (utilizado por la radiotelevisión holandesa), basado en un sistema de barras pensado para dos micrófonos cardioides con una angulación de aproximadamente 90Q y una separación de 30 cm entre soportes. - NOS stereo system (used by Dutch radio television), based on a bar system designed for two cardioid microphones with an angle of approximately 90 Q and a 30 cm separation between supports.
- Sistema A/B, basado en variaciones lateralizadas de estructura para dos micrófonos, entre 100Q y 150- y con separación entre 40 y 50 cm según caso. - A / B system, based on lateralized variations of structure for two microphones, between 100 Q and 150- and with separation between 40 and 50 cm depending on the case.
- Sistema RAI, dispositivo para dos micrófonos con angulación de 90Q y distancia entre soportes de 21 cm. - RAI System, device for two microphones with angulation of 90 Q and distance between supports of 21 cm.
- Faulkner Array, estructura pensada para dos micrófonos bidireccionales en línea separados 20 cm y con angulación de eje 0/180Q. - Faulkner Array, structure designed for two bi-directional microphones in line separated 20 cm and with axis angulation 0/180 Q.
- Estructura para configuración XY. Sistema de barra lineal portadora de 2 micrófonos cardioides con posicionamiento angular variable. - Structure for XY configuration. Carrier linear bar system with 2 cardioid microphones with variable angular positioning.
- INA 3, sistema con diseño para tres micrófonos con angulación variable entre 0QC y 180Q los laterales. - INA 3, system with design for three microphones with variable angulation between 0 Q C and 180 Q the sides.
- OCT de Schoeps (Triángulo Cardioide Optimizado). Sistema compuesto por una estructura lineal portadora de 3 soportes distribuidos para microfonía en L,C y R (270Q L / 0Q C y 90- R). - Schoeps OCT (Optimized Cardioid Triangle). System composed of a linear carrier structure with 3 distributed supports for microphones in L, C and R (270 Q L / 0 Q C and 90-R).
Entre los sistemas o estructuras diseñadas para captación multimicrofónica con reconocimiento internacional, se pueden citar las siguientes: - Sistema OCT II, compuesto por estructura de tres barras con variación de eje y tamaño, portadora de 5 micrófonos en esencia. Among the systems or structures designed for multimicrophonic capture with international recognition, the following can be mentioned: - OCT II System, consisting of a three-bar structure with a variation of the axis and size, with 5 microphones in essence.
- El sistema IRT diseñado por Günther Theile, que consta de una cruz con cuatro puntos de captación con ángulos de 45s, 135s, 225s y 315s.- The IRT system designed by Günther Theile, consisting of a cross with four pick-up points with angles of 45 s , 135 s , 225 s and 315 s .
- Sistema INA 5, sistema diseñado para la utilización de 5 micrófonos distanciados entre 25 y 60 cm y con angulaciones variables de 0s, 90s, 180s, 145s y 225 aproximadamente. - INA 5 system, system designed for the use of 5 microphones spaced between 25 and 60 cm and with variable angles of 0 s , 90 s , 180 s , 145 s and 225 approximately.
- Árbol de Fukada, estructura diseñada para soportar 7 micrófonos con posicionamiento básico combinable.  - Fukada tree, structure designed to support 7 microphones with combinable basic positioning.
- Hamasaki-Square (Cuadrado Hamasaki). Sistema válido en sí mismo o como complemento de otras estructuras. Consta de una estructura no necesariamente física de 4 puntos y microfonía bidireccional.  - Hamasaki-Square (Hamasaki Square). System valid in itself or as a complement to other structures. It consists of a not necessarily physical 4-point structure and bidirectional microphony.
- Estructura microfónica multicanal de Michael Williams y Guillame Le Dú. Estructura variable sobre diseño básico para 5 micrófonos. - Multichannel microphone structure by Michael Williams and Guillame Le Dú. Variable structure on basic design for 5 microphones.
- Sistema DPA de Jasón Corey . Diseño para 5 micrófonos fijos (3 frontales y 2 traseros). - Jason Corey DPA system. Design for 5 fixed microphones (3 front and 2 rear).
Ninguno de los citados sistemas ofrece una versatilidad de combinaciones que permita obtener una imagen auditiva favorable respecto a cualquier fuente sonora dentro de los 360s. A su vez, se hacen necesarias unas posibilidades de diferencia temporal entre los distintos captadores para evitar la generación de perturbaciones que obstaculicen la claridad, profundidad y definición de las fuentes sonoras. None of the aforementioned systems offer a versatility of combinations that allows to obtain a favorable auditory image with respect to any sound source within 360 s . In turn, some possibilities of temporal difference between the different sensors are necessary to avoid the generation of disturbances that hinder the clarity, depth and definition of the sound sources.
DESCRIPCIÓN DE LA INVENCIÓN DESCRIPTION OF THE INVENTION
Uno de los aspectos del sistema objeto de la presente invención es proporcionar una herramienta que facilite los procesos de captación de las distintas fuentes generadoras de sonido, simplificando el planteamiento operativo en cada una de las situaciones, pudiendo abarcar los 360s espaciales mediante el uso de ocho micrófonos como medios de captación sonora. De acuerdo con los principios de la invención, el citado sistema comprende medios para captar señales sonoras procedentes de una pluralidad de fuentes repartidas por un entorno/escenario, posibilitando tanto una combinación de señales de salida en concepto discreto o independiente con señal parcial conforme al ángulo y patrón polar del micrófono, como un concepto de propósito sumatorio de entorno global mediante la suma de las señales parciales discretas obtenidas en la captación. One of the aspects of the system object of the present invention is to provide a tool that facilitates the processes of capturing the different sound generating sources, simplifying the operational approach in each of the situations, being able to cover the 360 s space through the use of Eight microphones as sound capture media. In accordance with the principles of the invention, said system comprises means for capturing sound signals from a plurality of sources spread over an environment / scenario, both enabling a combination of discrete or independent concept output signals with partial signal according to the angle and polar pattern of the microphone, as a concept of summation purpose of the global environment by adding the discrete partial signals obtained in the acquisition.
El sistema objeto de la invención permite una captación de los 360e con división en 45/90/135/180/225/270/315 y 360e con la posibilidad de utilizar una minorización del sistema para hacerse compatible con los formatos estándar compuestos por: 1 micrófono (mono) - 2 micrófonos (estéreo) - 3 micrófonos (estéreo L, C, R), 4 micrófonos [Surround - cuadrafonía + (IRT)]- 5 micrófonos (sistemas surround estándar) - 6 micrófonos (6.1 ), 7 micrófonos (7.1 ) y 8 micrófonos (8.1 ). The system object of the invention allows a capture of the 360 e with division in 45/90/135/180/225/270/315 and 360 e with the possibility of using a minorization of the system to become compatible with the standard formats composed of : 1 microphone (mono) - 2 microphones (stereo) - 3 microphones (stereo L, C, R), 4 microphones [Surround - quadraphony + (IRT)] - 5 microphones (standard surround systems) - 6 microphones (6.1), 7 microphones (7.1) and 8 microphones (8.1).
El sistema permite influir, mediante la combinación posicional angular de sus medios de captación, en la ganancia y posicionamiento de las señales producidas por las fuentes sonoras en función de su posición espacial dentro de un entorno sonoro, posibilitando así valores de control relativos a las fuentes tanto de espacialidad como de intensidad. Se pueden implementar dichos medios para determinar las angulaciones e intensidades de las señales de entrada y salida con una variable combinable de 1 a 8 elementos microfónicos y de 0 a 360e por estructura de captación. Esto permite la localización de la fuente o fuentes sonoras, tanto en puntos emisores estancos como en posibles trayectorias móviles que se generen en torno a la estructura microfónica, dejando a decisión del operador determinar qué ángulos intervienen y, por tanto, el número de elementos de captación a utilizar. De este modo el operador puede decidir si interviene en la operación de forma no invasiva, siendo su participación determinante únicamente en las decisiones de diseño estructural de ángulo y número de micrófonos; simplificando o minimizando así su mediación en los valores naturales de la composición sonora. Los valores máximos de configuración del sistema vienen predefinidos por el fabricante. Sin embargo, el sistema permite al usuario definir la configuración final a utilizar, modificando los medios de captación, los micrófonos, del 1 al 8. El envío a grabación o mezcla de las señales captadas, se configura mediante envíos directos independientes a los diferentes canales de entrada del sistema receptor de la señal, pudiendo ser del tipo mono, estéreo, multicanal o multicanal envolvente. La especificación de cuál o cuáles de los envíos discretos de salida se debe asignar a los dispositivos de entrada de señal de los sistemas grabadores o de mezcla, estará en función de las decisiones del usuario operador, conforme a su valoración de la posición del punto o puntos de interés y/o de los parámetros especificados según el tipo de mezcla elegido (mono, estéreo o envolvente). The system allows to influence, by means of the angular positional combination of its collection means, the gain and positioning of the signals produced by the sound sources according to their spatial position within a sound environment, thus enabling control values relative to the sources both spatiality and intensity. Said means can be implemented to determine the angulations and intensities of the input and output signals with a combinable variable of 1 to 8 microphone elements and 0 to 360 e per pickup structure. This allows the location of the source or sound sources, both in watertight emitting points and in possible mobile trajectories that are generated around the microphone structure, leaving the operator's decision to determine which angles are involved and, therefore, the number of elements of catchment to use. In this way, the operator can decide whether to intervene in the operation in a non-invasive way, his participation being decisive only in the structural design decisions of the angle and number of microphones; simplifying or minimizing its mediation in the natural values of the sound composition. The maximum system configuration values are predefined by the manufacturer. However, the system allows the user to define the final configuration to be used, modifying the capture media, the microphones, from 1 to 8. The sending to recording or mixing of the captured signals, is configured by independent direct sends to the different channels of input of the signal receiving system, being able to be of the mono, stereo, multichannel or multichannel type surround. The specification of which or which of the discrete output sends should be assigned to the signal input devices of the recording or mixing systems, will be based on the decisions of the operator user, according to their assessment of the position of the point or points of interest and / or the parameters specified according to the type of mix chosen (mono, stereo or surround).
El sistema objeto de la invención dispone de una estructura definida por una doble cruz invertida que forma una estrella de ocho puntas, dicha doble cruz está a su vez definida por 4 pares de brazos unidos entre sí mediante una articulación pivotante. The system object of the invention has a structure defined by a double inverted cross that forms an eight-pointed star, said double cross is in turn defined by 4 pairs of arms joined together by a pivoting joint.
La estructura del sistema objeto de la invención establece unos ángulos predeterminados que a su vez pueden ser modificados mediante variaciones particulares de cada micrófono, por lo que el incremento de posibilidades es extenso. The structure of the system object of the invention establishes predetermined angles that in turn can be modified by particular variations of each microphone, so that the increase in possibilities is extensive.
En el sistema objeto de la invención se han tenido en cuenta las siguientes diferencias temporales de llegada de la señal: In the system object of the invention, the following temporary differences in signal arrival have been taken into account:
- Entre extremos de una misma barra: de 25 a 30 cm , donde la diferencia temporal es de= 0,75 ms.  - Between ends of the same bar: from 25 to 30 cm, where the time difference is = 0.75 ms.
- Básica con microfonía: dependerá de la microfonía. Recomendada entre extremos de la microfonía de una misma barra: de 38 a 45 cm = entre 1 ,14 y 1 ,35 ms.  - Basic with microphone: it will depend on the microphone. Recommended between the ends of the microphone of the same bar: from 38 to 45 cm = between 1, 14 and 1, 35 ms.
- Entre angulaciones continuadas: con variación de 45e= 15 cm = 0,45 ms Entre angulaciones continuadas: con variación de 90Q= 27 cm = 0,81 ms. - Between continuous angles: with a variation of 45 e = 15 cm = 0.45 ms Between continuous angles: with a variation of 90 Q = 27 cm = 0.81 ms.
- Entre ejes transversales y el extremo del ángulo intermedio = 5 cm = 0,15 ms.  - Between transverse axes and the end of the intermediate angle = 5 cm = 0.15 ms.
Por último cabe destacar que aunque el sistema objeto de la invención pueda resultar particularmente útil para producciones musicales (música clásica, operas...), deportivas (tenis, fútbol, baloncesto...), se puede aplicar también para una variada tipología de espectáculos. Otras variaciones a las realizaciones dadas a conocer, pueden entenderse y llevarse a cabo por los expertos en la técnica al poner en práctica la invención reivindicada, a partir de un estudio de los dibujos, la descripción y las reivindicaciones adjuntas. Finally, it should be noted that although the system object of the invention may be particularly useful for musical productions (classical music, opera ...), sports (tennis, football, basketball ...), it can also be applied for a varied typology of shows. Other variations to the disclosed embodiments can be understood and carried out by those skilled in the art when practicing the claimed invention, from a study of the drawings, the description and the appended claims.
Cada uno de los medios de captación genera una señal única e independiente que es llevada a través de un cableado a un dispositivo de mezcla, y/o de grabación con la intervención de un previo. Each of the capture means generates a unique and independent signal that is carried through a wiring to a mixing device, and / or recording with the intervention of a preamp.
DESCRIPCIÓN DE LOS DIBUJOS DESCRIPTION OF THE DRAWINGS
Para complementar la descripción que se está realizando y con objeto de ayudar a una mejor comprensión de las características de la invención, de acuerdo con un ejemplo preferente de realización práctica de la misma, se acompaña como parte integrante de dicha descripción, un juego de dibujos en donde con carácter ilustrativo y no limitativo, se ha representado lo siguiente: To complement the description that is being made and in order to help a better understanding of the features of the invention, according to a preferred example of practical implementation thereof, a set of drawings is attached as an integral part of said description. where for illustrative and non-limiting purposes, the following has been represented:
Figura .- Muestra diagrama estructural del sistema sin micrófonos acoplados. Figura 2.- Muestra diagrama estructural del sistema con micrófonos acoplados. Figura 3.- Muestra una vista en perspectiva del soporte de los micrófonos. Figure .- Shows structural diagram of the system without attached microphones. Figure 2.- Shows the structural diagram of the system with attached microphones. Figure 3.- Shows a perspective view of the microphone holder.
Figura 4.- Muestra una vista en planta de un ejemplo de distribución del sistema en un auditorio. REALIZACIÓN PREFERENTE DE LA INVENCIÓN Figure 4.- Shows a plan view of an example of the distribution of the system in an auditorium. PREFERRED EMBODIMENT OF THE INVENTION
A la vista de las figuras se describe a continuación un modo de realización preferente del sistema (1 ) objeto de esta invención. In view of the figures, a preferred embodiment of the system (1) object of this invention is described below.
Para la realización de este ejemplo el sistema (1 ) de captación objeto de la invención queda definido de las siguientes maneras según la configuración: For the realization of this example the collection system (1) object of the invention is defined in the following ways according to the configuration:
- Básica sin medios de captación (5): distancia entre extremos de una misma barra (2): de 25 a 30 cm. - Basic without collection means (5): distance between ends of the same bar (2): from 25 to 30 cm.
- Básica con unos medios de captación (5) (dependerá del tipo de medios de captación (5)). Distancia recomendada entre extremos de una misma barra (2): de 38 a 45 cm.  - Basic with a collection means (5) (it will depend on the type of collection means (5)). Recommended distance between ends of the same bar (2): from 38 to 45 cm.
- Distancia entre ejes para anclaje de unos soportes (4): entre extremos de una misma barra (2) : 20 cm.  - Distance between axes for anchoring some supports (4): between ends of the same bar (2): 20 cm.
- Distancia aproximada entre angulaciones continuadas: con variación de 45Q= 15 cm. - Approximate distance between continuous angles: with a variation of 45 Q = 15 cm.
- Distancia aproximada entre angulaciones continuadas: con variación de 90Q= 27 cm. - Approximate distance between continuous angles: with variation of 90 Q = 27 cm.
- Distancia aproximada entre ejes transversales y extremo de un ángulo intermedio = 5 cm.  - Approximate distance between transverse axes and end of an intermediate angle = 5 cm.
Ángulos fijos del sistema (1 ): 0e (360Q) - 45Q - 90Q - 1359 - 1802 - 225Q - 270Q y 315Q. System fixed angles (1): 0 e (360 Q ) - 45 Q - 90 Q - 135 9 - 180 2 - 225 Q - 270 Q and 315 Q.
Ángulos a determinar mediante unos medios de determinación de ángulo (6) para formaciones de captación conforme a las angulaciones del sistema (1 ):  Angles to be determined by means of angle determination means (6) for feedback formations according to the angles of the system (1):
- Estéreo no estándar A: L + R: L 315Q + R 45Q - Non-standard stereo A: L + R: L 315 Q + R 45 Q
- Estéreo no estándar B: L C R: L 315Q + C 0Q + R 459 - Non-standard stereo B: LCR: L 315 Q + C 0 Q + R 45 9
- Estéreo no estándar C: L C R: Le 270Q + C 0Q + Re 909 - Non-standard stereo C: LCR: Le 270 Q + C 0 Q + Re 90 9
- Estéreo no estándar D: L C R: Ls 225e + C 0S + Rs 135Q - Non-standard stereo D: LCR: Ls 225 e + C 0 S + Rs 135 Q
- Cuadrafónico o doble estéreo no estándar: L 315Q + R 45Q + Ls 225Q + Rs 135s - Non-standard quadraphonic or double stereo: L 315 Q + R 45 Q + Ls 225 Q + Rs 135 s
- Envolvente 3/2 A (5.1 ): L 315Q + C 0s + R 45Q + Ls 225Q + Rs 135s - Envolvente 3/2 B (5.1 ): L 315e + C 0e + R 45s + Lc 270s + Rc 90Q - Envelope 3/2 A (5.1): L 315 Q + C 0 s + R 45 Q + Ls 225 Q + Rs 135 s - Envelope 3/2 B (5.1): L 315 e + C 0 e + R 45 s + Lc 270 s + Rc 90 Q
- Envolvente 3/2 C (5.1 ): L 270e + C 0e + R 90s + Ls 225s + Rs 135e - Envelope 3/2 C (5.1): L 270 e + C 0 e + R 90 s + Ls 225 s + Rs 135 e
- Envolvente 3/3 (6.1 ): L 315s + C 0s + R 45s + Ls 225s + Cs 180s + Rs 135s - Envelope 3/3 (6.1): L 315 s + C 0 s + R 45 s + Ls 225 s + Cs 180 s + Rs 135 s
- Envolvente 3/3 (6.1 ): L 2709 + C 0s + R 90s + Ls 225s + Cs 180s + Rs 135e - Envelope 3/3 (6.1): L 270 9 + C 0 s + R 90 s + Ls 225 s + Cs 180 s + Rs 135 e
- Envolvente 3/4 (7.1 ): L 315s + C 0Q + R 45s + Lc 270Q + Rc 90s + Ls 225Q + Rs 135s - 3/4 Envelope (7.1): L 315 s + C 0 Q + R 45 s + Lc 270 Q + Rc 90 s + Ls 225 Q + Rs 135 s
- Envolvente 3/2/2 (7.1 ): L 315s + C 0s + R 45s + Lc 270s + Rc 90s + Ls 225s + Rs 135s - Envelope 3/2/2 (7.1): L 315 s + C 0 s + R 45 s + Lc 270 s + Rc 90 s + Ls 225 s + Rs 135 s
- Envolvente 3/2/3 (8.1 ): L 315a + C 0s + R 45s + Lc 270s + Rc 90s + Ls 225s + Cs180s + Rs 135s - Envelope 3/2/3 (8.1): L 315 a + C 0 s + R 45 s + Lc 270 s + Rc 90 s + Ls 225 s + Cs180 s + Rs 135 s
La Figura 4 muestra un croquis como ejemplo de un entorno sonoro en el que se puede utilizar el sistema (1 ) de la presente invención. Lógicamente los ángulos elegidos mediante los medios de determinación de ángulo (6) y los medios de captación (5) pueden ser variables, tanto en número como en diagrama polar o directividad, tal y como se observa en la figura 2. Figure 4 shows a sketch as an example of a sound environment in which the system (1) of the present invention can be used. Logically, the angles chosen by means of angle determination (6) and capture means (5) can be variable, both in number and in polar diagram or directivity, as shown in Figure 2.
Por ejemplo, 1 ,2,3,4,5,6,7 u 8 micrófonos fijados a los soportes (4), ilustrados en la figura 3, a modo de medios de captación (5) con la posible combinatoria y con distintas directividades aplicables: cardioides, supercardiodes, hipercardioides, u omnidireccionales si el usuario así lo considera. En la figura 1 se muestra de manera ejemplar solamente una estructura microfónica con grados de angulación y sus respectivas zonas de influencia de esta manera el sistema (1 ) genera de una a ocho señales sonoras discretas o independientes. For example, 1, 2,3,4,5,6,7 or 8 microphones attached to the supports (4), illustrated in Figure 3, as a collection means (5) with the possible combinatorial and with different directivities Applicable: cardioids, supercardiodes, hypercardioids, or omnidirectional if the user considers so. Figure 1 shows in an exemplary way only a microphonic structure with degrees of angulation and their respective areas of influence in this way the system (1) generates one to eight discrete or independent sound signals.
La angulación se determina mediante el uso de los medios de determinación de ángulo (6), como puede ser un goniómetro, en el caso de los brazos (2) y mediante unas articulaciones (8) presentes entre cada una de las bases (7) y cada uno de los portadores (9) que conforman los soportes (4), permitiendo así un ajuste individual de cada uno de los medios de captación (5) al hacerlos girar mediante las articulaciones (8) respecto al eje perpendicular al centro de la base (7), dicha disposición se representa a modo de ilustración en la figura 3. The angulation is determined by the use of the angle determination means (6), such as a goniometer, in the case of the arms (2) and by means of joints (8) present between each of the bases (7) and each of the carriers (9) that make up the supports (4), thus allowing an individual adjustment of each of the collection means (5) by rotating them by means of the joints (8) with respect to the axis perpendicular to the center of the base (7), said arrangement is represented by way of illustration in figure 3.
Una vez ajustado el sistema se conecta a un cableado que comprende unos cables o líneas por cada uno de los medios de captación (5) para llevarlo a una línea de salidas (105) conectada a la línea de entrada (104) de una mesa de mezclas o previo (102), tal y como se observa en la figura 4. El sistema (1 ) puede quedar ubicado entre un escenario (106) y un público (103), si se da la existencia de este. Once the system is adjusted, it is connected to a wiring comprising cables or lines for each of the collection means (5) to take it to an output line (105) connected to the input line (104) of a table mixtures or previous (102), as can be seen in figure 4. The system (1) can be placed between a stage (106) and an audience (103), if it exists.
Por ejemplo, aunque la invención pueda resultar particularmente útil para producciones audiovisuales musicales (música clásica, operas...), deportivas (tenis, fútbol o baloncesto), se puede aplicar también para otros espectáculos. Otras variaciones a las realizaciones dadas a conocer pueden entenderse y llevarse a cabo por los expertos en la técnica al poner en práctica la invención reivindicada, a partir de un estudio de los dibujos, la descripción y las reivindicaciones adjuntas. For example, although the invention may be particularly useful for musical audiovisual productions (classical music, opera ...), sports (tennis, football or basketball), it can also be applied for other shows. Other variations to the disclosed embodiments can be understood and carried out by those skilled in the art when practicing the claimed invention, from a study of the drawings, the description and the appended claims.
Básicamente la utilización del sistema comienza con un análisis del entorno sonoro donde va a realizarse la acción sonora (espacio abierto o cerrado [dimensiones y características físico-acústicas]), asimismo se analiza la composición de unas fuentes sonoras (características tonales, de presión, número, distribución espacial.etc.). Basically, the use of the system begins with an analysis of the sound environment where the sound action will be performed (open or closed space [dimensions and physical-acoustic characteristics]), the composition of sound sources (tonal, pressure characteristics, etc.) is also analyzed. number, spatial distribution, etc.).
Una vez obtenidos los datos anteriores se selecciona una ubicación del sistema (1 ) objeto de la invención y se estiman las posibles configuraciones (se cuelga, va sobre suelo, va en una cámara o soporte móvil, altura, distancia de las fuentes sonoras, etc.). Once the previous data is obtained, a location of the system (1) object of the invention is selected and the possible configurations are estimated (it hangs, goes on the ground, goes in a camera or mobile support, height, distance of the sound sources, etc. .).
A continuación se dirige el eje O9 establecido por el medios de determinación de ángulo (6) del sistema (1 ) al centro o grado 0 de la acción sonora (aunque caben variables distintas a la comentada), dicho posicionamiento puede llevarse a cabo mediante un posicionamiento estático o dinámico (dinámico si se posiciona en un soporte móvil como una pistola o empuñadura al efecto, pértiga específica, cámara o cualquier otro soporte al uso). Next, the axis O 9 established by the angle determination means (6) of the system (1) is directed to the center or degree 0 of the sound action (although variables other than the one mentioned above), said positioning can be carried out by means of a static or dynamic positioning (dynamic if it is positioned on a mobile support such as a pistol or handgrip for that purpose, specific pole, camera or any other support for use).
Seguidamente se coloca el número de micrófonos o medios de captación (5) que se estime necesario (máximo ocho) en los soportes (4), mediante los portadores (9), sobre los ángulos preestablecidos por las barras (2) del sistema (1 ) y que se designan al efecto por el usuario. A su vez, se podrán realizar ajustes de angulación finos o de precisión en cada uno de los soportes (4) mediante las articulaciones (8) una vez establecidos los micrófonos o medios de captación (5) a utilizar, se cablean mediante un conector y un cable individualizado para cada medio de captación (5) los cuales portarán una señal de salida individualizada de medio de captación (5) a un sistema receptor de la señal; bien pudiera ser un interfaz con funciones de previo de micrófono o directamente a las entradas de micrófono de una mesa de mezclas (102) de audio. Next, the number of microphones or pick-up media (5) that is deemed necessary (maximum eight) is placed on the supports (4), by means of the carriers (9), on the angles preset by the bars (2) of the system (1) ) and that are designated for this purpose by the user. In turn, fine or precision angulation adjustments can be made on each of the supports (4) by means of the joints (8) once the microphones or pick-up means (5) to be used are established, they are wired through a connector and an individualized cable for each pick-up means (5) which will carry an individual output signal of pick-up means (5) to a signal receiving system; It could be an interface with microphone pre-functions or directly to the microphone inputs of an audio mixing console (102).
Tal y como se ha indicado anteriormente, el sistema (1 ) genera señales independientes de salida producidas por cada uno de los micrófonos o medios de captación (5), pero no limita al usuario en una posible matrización de las mismas. As indicated above, the system (1) generates independent output signals produced by each of the microphones or pick-up means (5), but does not limit the user in a possible matrix of them.

Claims

R E I V I N D I C A C I O N E S
1. - Sistema (1 ) para captación sonora caracterizado porque comprende: 1. - System (1) for sound collection characterized in that it comprises:
- unas barras (2) longitudinales articuladas entre sí mediante una articulación pivotante (3) que se encuentra ubicada en el centro de cada una de dichas barras (2),  - longitudinal bars (2) articulated with each other by means of a pivoting joint (3) that is located in the center of each of said bars (2),
- unos soportes (4) que se encuentran respectivamente ubicados en cada uno de los extremos relativos de las barras (2),  - supports (4) that are located respectively at each of the relative ends of the bars (2),
- unos medios de captación (5) sonora fijados a los soportes (4), y - sound collection means (5) fixed to the supports (4), and
- unos medios de determinación de ángulo (6) solidario a la articulación pivotante (3) destinado a determinar ángulos definidos entre las barras (2). - means for determining the angle (6) integral with the pivoting joint (3) designed to determine defined angles between the bars (2).
2. - Sistema (1 ) según reivindicación 1 caracterizado porque los medios de determinación de ángulo (6) son un goniómetro. 2. - System (1) according to claim 1 characterized in that the angle determination means (6) is a goniometer.
3. - Sistema (1 ) según reivindicación 1 caracterizado porque los medios de captación (5) son unos micrófonos. 3. - System (1) according to claim 1 characterized in that the collection means (5) are microphones.
4. - Sistema (1 ) según reivindicación 1 ó 2 donde cada uno de los soportes (4) comprende: 4. - System (1) according to claim 1 or 2 wherein each of the supports (4) comprises:
- una base (7) adaptada para ser fijada sobre un extremo de las barras (2), y  - a base (7) adapted to be fixed on one end of the bars (2), and
- un portador (9) unido a dicha base mediante una articulación (8) destinada a determinar una orientación del portador (9) con respecto de la base (7).  - a carrier (9) attached to said base by means of an articulation (8) intended to determine an orientation of the carrier (9) with respect to the base (7).
5. -Sistema (1 ) según una cualquiera de las reivindicaciones anteriores caracterizado porque las barras (2) tienen una distancia entre sus extremos comprendida entre 25 y 30 cm. 5. -System (1) according to any one of the preceding claims characterized in that the bars (2) have a distance between their ends between 25 and 30 cm.
6. - Sistema (1 ) según una cualquiera de las reivindicaciones 1 a 4 caracterizado porque las barras (2) tienen una distancia entre sus extremos comprendida entre 38 a 45 cm 6. - System (1) according to any one of claims 1 to 4 characterized in that the bars (2) have a distance between their ends between 38 and 45 cm
7. - Sistema (1 ) según reivindicación 5 ó 6 caracterizado porque los soportes (4) se encuentran ubicados en las barras (2) a una distancia entre ellos de 20 cm. 7. - System (1) according to claim 5 or 6, characterized in that the supports (4) are located in the bars (2) at a distance between them of 20 cm.
8. - Sistema (1 ) según una cualquiera de las reivindicaciones 5 a 7 caracterizado porque se encuentran definidos entre las barras unos ángulos prefijados mediante los medios de determinación de ángulos (6) que se seleccionan de entre : 0Q, 360s, 45s, 90Q, 135Q, 180s, 225s, 270Q y 315s. 8. - System (1) according to any one of claims 5 to 7 characterized in that predetermined angles are defined between the bars by means of determining angles (6) that are selected from: 0 Q , 360 s , 45 s , 90 Q , 135 Q , 180 s , 225 s , 270 Q and 315 s .
PCT/ES2011/000088 2010-03-24 2011-03-23 Sound-capture system WO2011117440A1 (en)

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ES201030441A ES2365475B1 (en) 2010-03-24 2010-03-24 SYSTEM FOR SOUND COLLECTION.
ESP201030441 2010-03-24

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4206324A (en) * 1977-08-22 1980-06-03 Sony Corporation Pivoted plural microphone assembly
US5778083A (en) * 1994-10-31 1998-07-07 Godfrey; Mike Global sound microphone system
KR20080020064A (en) * 2006-08-30 2008-03-05 현대 파워텍 주식회사 Jig for fixing microphone to measure interior noise of car
CN201402182Y (en) * 2009-04-29 2010-02-10 中国船舶重工集团公司第七一一研究所 Sound field measuring instrument

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4206324A (en) * 1977-08-22 1980-06-03 Sony Corporation Pivoted plural microphone assembly
US5778083A (en) * 1994-10-31 1998-07-07 Godfrey; Mike Global sound microphone system
KR20080020064A (en) * 2006-08-30 2008-03-05 현대 파워텍 주식회사 Jig for fixing microphone to measure interior noise of car
CN201402182Y (en) * 2009-04-29 2010-02-10 中国船舶重工集团公司第七一一研究所 Sound field measuring instrument

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