WO2019103708A1 - Correction de désaxement et de phase de haut-parleurs - Google Patents

Correction de désaxement et de phase de haut-parleurs Download PDF

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Publication number
WO2019103708A1
WO2019103708A1 PCT/TR2018/050276 TR2018050276W WO2019103708A1 WO 2019103708 A1 WO2019103708 A1 WO 2019103708A1 TR 2018050276 W TR2018050276 W TR 2018050276W WO 2019103708 A1 WO2019103708 A1 WO 2019103708A1
Authority
WO
WIPO (PCT)
Prior art keywords
listener
driver
axis
speaker enclosure
allows
Prior art date
Application number
PCT/TR2018/050276
Other languages
English (en)
Inventor
Emre TELCI
Original Assignee
Telci Emre
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 Telci Emre filed Critical Telci Emre
Publication of WO2019103708A1 publication Critical patent/WO2019103708A1/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
    • H04R5/00—Stereophonic arrangements
    • H04R5/02—Spatial or constructional arrangements of loudspeakers
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/18—Methods or devices for transmitting, conducting or directing sound
    • G10K11/26—Sound-focusing or directing, e.g. scanning
    • G10K11/34—Sound-focusing or directing, e.g. scanning using electrical steering of transducer arrays, e.g. beam steering
    • G10K11/341—Circuits therefor
    • G10K11/346—Circuits therefor using phase variation
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/18—Methods or devices for transmitting, conducting or directing sound
    • G10K11/26—Sound-focusing or directing, e.g. scanning
    • G10K11/35—Sound-focusing or directing, e.g. scanning using mechanical steering of transducers or their beams
    • G10K11/352—Sound-focusing or directing, e.g. scanning using mechanical steering of transducers or their beams by moving the transducer
    • 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
    • H04R5/04—Circuit arrangements, e.g. for selective connection of amplifier inputs/outputs to loudspeakers, for loudspeaker detection, or for adaptation of settings to personal preferences or hearing impairments
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S7/00—Indicating arrangements; Control arrangements, e.g. balance control
    • H04S7/30—Control circuits for electronic adaptation of the sound field
    • H04S7/302—Electronic adaptation of stereophonic sound system to listener position or orientation
    • H04S7/303—Tracking of listener position or orientation
    • 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
    • H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
    • H04R1/021—Casings; Cabinets ; Supports therefor; Mountings therein incorporating only one transducer
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2201/00—Details of transducers, loudspeakers or microphones covered by H04R1/00 but not provided for in any of its subgroups
    • H04R2201/02—Details casings, cabinets or mounting therein for transducers covered by H04R1/02 but not provided for in any of its subgroups
    • H04R2201/025—Transducer mountings or cabinet supports enabling variable orientation of transducer of cabinet

Definitions

  • the present invention relates to a system that enables a listener and a loudspeaker to remain at a linear axis and a sound to be transmitted without any changes at the drivers’ frequency response caused by leaving the linear axis of a speaker, by determining position of the listener via a sensor or a similar tool such as a camera, a LI DAR (Light Detection and Ranging Tool) , a RANGEFI NDER (Ranging Tool) , and thereby allowing loudspeaker enclosures or drivers to be rotated towards the listener.
  • a sensor or a similar tool such as a camera, a LI DAR (Light Detection and Ranging Tool) , a RANGEFI NDER (Ranging Tool) , and thereby allowing loudspeaker enclosures or drivers to be rotated towards the listener.
  • the invention also relates to a system that allows a listener hear sound in phase in a multiple speaker system and as if they are at an equal distance to right and left speakers even if they have a different distance by measuring the distance between the listener and the individual speakers, which is ensured by applying delay to either one of the speakers by the system .
  • Loudspeakers radiate sound at a linear axis (forward from centers of the drivers) with minimum loss at their frequency response. As the listener gets far away from the linear axis of the loudspeaker, their frequency response changes which results as a loss in certain frequencies.
  • the listener would be located at the linear axis of the loudspeaker or rotate the loudspeaker so as to face perpendicular to the loudspeaker.
  • the listener would work at music studios in particular without moving and trying to stay at the linear axis of the loudspeaker. I f the listener is on the move and thus gets out of the linear axis of the loudspeaker, he would face with some losses in higher frequencies in particular.
  • the invention has been developed in order to eliminate the aforementioned drawbacks and has a distinctive nature relative to the most prior art techniques known as off axis and phase correction of speakers.
  • the present invention relates to off axis and phase correction of loudspeakers in order to eliminate the aforementioned disadvantages and provide novel advantages to the related technical field.
  • An aim of the invention is to provide a system that enables an audio to be transmitted at the same linear axis with a listener by sensing position of the listener and thereby rotating the loudspeaker or the drivers in order to avoid frequency response losses, and allow the listener to hear the audio in a proper and accurate manner.
  • Another aim of the invention is to provide a system that allows audio off axis frequency response losses and out of phase issues to be minimized.
  • a further aim of the invention is to provide a system that enables a listener to be continuously monitored no matter what the location or position of the listener is, and also an audio to be transmitted.
  • Another aim of the invention is to provide a system that enables simultaneous, in phase transmission of the audios of the speakers that are at different distances relative to the listener.
  • a further aim of the invention is to develop a system that allows a listener to hear a sound in phase where there are multiple speakers and as if they are at an equal distance to right and left speakers even if they have a different distance by measuring the distance between the listener and the loudspeaker, which is ensured by applying delay to either one of the loudspeakers by the system .
  • the present invention relates to off axis and phase correction of loudspeakers in order to achieve all aims that are stated above and would be more evident with the help of the detailed description presented below.
  • the invention has a delay circuit that enables the listener to hear the audio simultaneously and in phase from speakers with different distances by measuring the distance between the listener standing still or on the move and the loudspeaker enclosures and thus applying delay to the driver close to the listener.
  • the tool that allows determining the position of the Listener located within a Monitoring Mechanism is a camera.
  • the tool that allows determining the position of the Listener located within the Monitoring Mechanism is a LI DAR (Light Detection or Ranging Tool) .
  • the tool that allows determining the position of the Listener located within the Monitoring Mechanism is a RANGEFI NDER (Ranging Tool) .
  • I n a further preferable embodiment of the invention, it has the Delay Circuit that allows a listener to hear the audio without any out of phase issues as if a listener on the move or remaining at a stable location is at an equal distance to the right and left speaker even if they have a different distance.
  • the tool that allows determining the position of the Listener located within the Monitoring Mechanism is an I NFRARED CAMERA operating in cooperation with an I NFRARED PROJECTOR.
  • Figure 1 shows the elements that form off axis and phase correction of loudspeakers.
  • Figure 2a shows the axes for transmitting the audio at determined angles by a driver.
  • Figure 2b shows the axes for transmitting the audio at determined angles by a loudspeaker.
  • Figure 3a shows the situation when the drivers are rotated relative to different positions of the listener.
  • Figure 3b shows the situation when the loudspeaker is rotated relative to different positions of the listener.
  • Figure 4a shows that the drivers and the listener are at the same linear axis.
  • Figure 4b shows that the loudspeakers and the listener are at the same linear axis.
  • Figure 5 shows that the listener on the move is at a different distance to the speakers, he hears the audios coming from a right speaker enclosure (5.2) and a left speaker enclosure (5.1 ) , by applying delay to the left speaker enclosure (5.1 ) .
  • the invention detects the point where a listener is located and thereby rotates speaker enclosures (5) or drivers (3) that allow an audio to be transmitted relative to the location where the listener is present.
  • the listener enables the listener to receive the audio with the least rate of off axis frequency response change and out of phase issue when the listener is on the move or standing still not in an equal distance to speakers.
  • the speaker enclosure (5) is rotated to the listener; even if the listener gets out of the linear axis of the speaker enclosures (5) , rotating the speaker enclosures (5) to the listener allows the listener to stay at their linear axes together with the speaker enclosures (5) and thereby the audio to be transmitted without any frequency changes.
  • I t is enabled for whole loudspeaker, in other words, the entire speaker enclosure (5) to be rotated to the listener in one piece.
  • the round portion of the speaker enclosure (5) letting the audio out which is also called as driver (3)
  • the entire speaker operates based on the operating principle of turning of the speaker enclosures (5) , wherein rotating of the round portion of the speaker enclosure letting the audio out, which is just herein called as the driver (3) , to the listener allows the listener to remain at the linear axis and thus the audio to be transmitted without any frequency response change.
  • the invention measures the distance between the listener on the move and the speakers, in other words, the speaker enclosure (5) or the drivers (3) , and applies delay to the driver (3) close to the listener as well as allows the listener to hear the audio in phase from the speaker enclosures (5) or the drivers (3) having different distances.
  • Transmission of the audio with the least change at frequency response is particularly very important for the audio studios.
  • the system in our invention allows the listener to have a movement area without any need to remain at one point and a more convenient operation. I t sometimes eliminates the losses occurred as a result of unnoticeable displacements.
  • our invention is capable of focusing on a desired position by the user in addition to moving relative to the location of the listener.
  • Operating principles of our invention comprises the following steps; continuous detecting of position of the listener by use of a sensor or similar tools such as a camera, a LI DAR or a RANGERFI NDER, rotating the speaker enclosures (5) , and in another embodiment, the driver (3) towards the listener by means of a mechanical component, and allowing the audio to be transmitted with the least change at frequency response possible by enabling the listener to remain at the linear axis of the speaker enclosure (5) or the driver.
  • a sensor or similar tools such as a camera, a LI DAR or a RANGERFI NDER
  • FIG. 2a and figure 2b overall views of the driver (3) and the speaker enclosure (5) are shown.
  • the axes are shown, which are for radiating the audio coming from the driver (3) and the speaker enclosure (5) at determined angles (45°,30 0 , 15 0 ,0°, 15°, 30°, 45°) .
  • I n Figure 5 the listener on the move is shown so as to be at a different distance relative to the speakers, in other words, speaker enclosures (5) .
  • I t is shown that the distance measured by the Monitoring Mechanism (4) is applied to the speaker enclosures (5) by the Audio Delay Circuit (6) , and the listener hears the audios coming from the right speaker enclosure (5.2) and the left speaker enclosure (5.1 ) in phase.
  • the listener is enabled to hear the audio without any phase change by applying delay to the left speaker enclosure (5.1 ) and thereby keeping the audio in phase reaching to the listener with the audio coming from the right speaker enclosure (5.2) .
  • the tools that enable detecting the position of the Listener within the monitoring mechanism (4) may be respectively: a sensor or many similar tools such as a camera, a LI DAR (Light Detecting and Ranging Tool) , a RANGEFI NDER (Ranging Tool) , an I NFRARED CAMERA that operates in cooperation with an I NFRARED PROJECTOR. I nformation on the position of the listener can be obtained by using at least one of these tools. Moreover, these tools can be used in combination when needed.
  • At least one motor preferably a Pan Motor (1 ) that provide a Speaker enclosure (5) or a Driver (3) with the ability of movement, allows the listener to move right and left in order to enable the Speaker enclosure (5) and the
  • At least one motor preferably a Tilt Motor (2) that provide a Speaker enclosure (5) or a Driver (3) with the ability of movement, allows the listener to move upward and downward in order to enable the Speaker enclosure (5) and the Driver (3) or just the Driver (3) to remain at the same linear axis with a listener depending on the data received from a monitoring mechanism (4) ,
  • a Monitoring Mechanism (4) that comprises at least one tool allowing the position of the listener to be determined, transmits the data on the position of the listener to the pan motor (1 ) and the tilt motor (2) in order to enable the speaker enclosure (5) and the Driver (3) or just the Driver (3) to remain at the same linear axis with the listener, and is contained within any speaker enclosure (5) ,
  • At least one speaker enclosure (5) that comprises at least one motor, preferably a Pan motor (1 ) and a Tilt motor (2) , at least one driver (3) , a monitoring mechanism (4) and a delay circuit (6) , and rotates relative to the position of the listener.

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Optical Radar Systems And Details Thereof (AREA)
  • Stereophonic System (AREA)

Abstract

L'invention concerne un système qui permet à un auditeur et à un haut-parleur de rester au niveau d'un axe linéaire et d'émettre un signal audio sans modification de réponse en fréquence due à un positionnement désaxé. À cette fin, le système détermine la position de l'auditeur par l'intermédiaire d'un capteur ou d'un outil similaire tel qu'une caméra, un LIDAR (outil de détection de lumière et de télémétrie) ou un télémètre (outil de télémétrie). Une telle détermination permet de tourner vers l'auditeur les haut-parleurs et leurs composants mécaniques (tous les composants et leur enceinte) ou seulement les transducteurs. De plus, une telle détermination permet simultanément d'atteindre le signal audio en phase et de le transmettre, sans modification au niveau de la réponse en fréquence provoquée par l'annulation des fréquences formées en étant déphasées, à l'auditeur se déplaçant ou restant toujours à des distances différentes des haut-parleurs (lorsqu'il existe des distances différentes jusqu'aux haut-parleurs droit et gauche) en appliquant un retard aux signaux audio provenant des haut-parleurs droit et gauche.
PCT/TR2018/050276 2017-11-22 2018-05-30 Correction de désaxement et de phase de haut-parleurs WO2019103708A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR2017/18559A TR201718559A2 (tr) 2017-11-22 2017-11-22 Hoparlör eksen ve geci̇kme düzelti̇mi̇
TR2017/18559 2017-11-22

Publications (1)

Publication Number Publication Date
WO2019103708A1 true WO2019103708A1 (fr) 2019-05-31

Family

ID=66631674

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/TR2018/050276 WO2019103708A1 (fr) 2017-11-22 2018-05-30 Correction de désaxement et de phase de haut-parleurs

Country Status (2)

Country Link
TR (1) TR201718559A2 (fr)
WO (1) WO2019103708A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4063034A (en) * 1976-05-10 1977-12-13 Industrial Research Products, Inc. Audio system with enhanced spatial effect
EP1667488A1 (fr) * 2003-09-25 2006-06-07 Yamaha Corporation Systeme de correction de caracteristique acoustique
WO2014035902A2 (fr) * 2012-08-31 2014-03-06 Dolby Laboratories Licensing Corporation Rendu réfléchi et direct de contenu de mixage multicanal à des haut-parleurs individuellement adressables

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4063034A (en) * 1976-05-10 1977-12-13 Industrial Research Products, Inc. Audio system with enhanced spatial effect
EP1667488A1 (fr) * 2003-09-25 2006-06-07 Yamaha Corporation Systeme de correction de caracteristique acoustique
WO2014035902A2 (fr) * 2012-08-31 2014-03-06 Dolby Laboratories Licensing Corporation Rendu réfléchi et direct de contenu de mixage multicanal à des haut-parleurs individuellement adressables

Also Published As

Publication number Publication date
TR201718559A2 (tr) 2019-06-21

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